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Vice President of Technical Services to Present at Army Corps Natural and Nature-Based Features Symposium

Vice President of Technical Services, Randy Mandel, has been invited to present the Bioengineering Manual he coauthored for the Emergency Watershed Protection (EWP) Program as well as Riparian Restoration Matrix, also developed for EWP, at the September Army Corps International Natural and Nature-Based Features Symposium at UC Santa Cruz. His presentation will occur on September 20.

US Army Corps of Engineers (USACE) initiated a collaborative project to develop, publish, and promote guidelines on the development of Natural and Nature-Based Features (NNBF). NNBF support engineering functions in the context of the overall sustainability and resilience of coasts, bays, and estuaries. The workshop at which Mr. Mandel will present is part of a series of workshops that relate to USACE’s multi-agency effort to develop guidance describing how to implement, monitor, and evaluate NNBF projects.

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Climate Change and Coastal Fish Assemblages

By David J. Yozzo, PhD

Climate change is impacting the health and biological integrity of marine and estuarine waters throughout the United States, and globally.  Rising average air and water temperatures, more frequent and extreme weather events, and steadily rising sea levels are changing baseline environmental conditions, and may alter the distributions and life history patterns of marine/estuarine organisms, including fish, invertebrates, sea birds, sea turtles and marine mammals. The magnitude of these ecological changes is expected to increase in the future, with important implications for strategic, effective management of marine and coastal resources, including sustainable fisheries and swimmable waters. One especially widespread (global) indicator of the effects of climate change (specifically increased sea surface temperatures) on marine resources is the increasing magnitude of change in the distribution of marine and estuarine fish species. (Roessig et al. 2004, Nye et al. 2009, Koenigstein et al. 2016). For example:

  • Along the southeastern Brazilian coast, up to 50 fish species have altered their distribution patterns in recent decades, with subtropical species contracting their range in the north, and tropical species expanding their ranges to the south. (Araujo et al. 2018);
  • A general shift northward in fish migration patterns has been documented in European estuaries, from Portugal to Scotland, from the mid-1970s to present (Nicolas et al. 2011);
  • Within the Tagus Estuary, along the Portuguese Atlantic coast, an increase in sea surface temperatures from 1978 to 2006 was correlated with greater abundance of sub-topical species and a decline in temperate fish species (Vinagre et al. 2009); and
  • Tropical fish species are increasing in abundance within temperate estuaries along the coast of South Africa, and future projected changes in the intensity and periodicity of precipitation and river flow is anticipated to strongly affect coastal fish populations in this region (James et al. 2013).

Large School of Fish (from Wikimedia Commons)

However, discerning climate-driven changes in marine fish distributions is challenging – the signal from climatic effects may be confounded by other factors such as forage availability, changes in inshore habitat structure and commercial overharvesting. In addition, marine fish populations can undergo cyclic patterns of abundance associated with multi-decadal natural changes in oceanic currents, such as the North Atlantic Oscillation (NAO), the Pacific Decadal Oscillation (PDO), and the El Nino-Southern Oscillation (ENSO) (Crozier and Hutchings 2014). Even under nearly constant environmental conditions, fish distributions are not static. Fish populations occupy optimal habitats under low abundances, but also disperse into less optimal habitats at high abundances (Sinclair 1988, MacCall 1990). This means that species that are only rarely or periodically seen in temperate estuaries may be driven there in response to higher densities/competition for resources in more tropical waters and not necessarily because of favorable temperatures.

Many aquatic and marine species are sensitive to temperatures just a few degrees higher than those they are generally adapted to in nature (Kennedy et al. 2002). Oceanic warming simultaneously reduces the total amount of dissolved oxygen that can be held in water and increases demand for oxygen in cold blooded aquatic animals. Even modest increases in ocean temperatures may affect growth/metabolism, determine behavior and alter distribution patterns. The Intergovernmental Panel on Climate Change (IPCC 2014) has documented an average global temperature increase among land and ocean surfaces of 0.85 °C (1.53 °F) between 1880 and 2012. The upper ocean (0 to 75 m) has, on average, warmed by 0.11 °C (0.20 °F) every decade since the early 1970s.

Increased surface water temperature, along with changing patterns of precipitation and riverine hydrology may alter the timing and magnitude of phytoplankton production in estuaries, favoring production by species known to form harmful algal blooms (HABs) (Pyke et al. 2008)—such as the notorious “red tides” currently occupying a large expanse of the southwestern Florida coastline, resulting in massive fish kills, and respiratory distress to humans on beaches. Toxic effects of HABs vary; some forms may exhibit toxicity to fish and aquatic biota even at low cell concentrations, while others may be essentially non-toxic but present a nuisance through high biomass production – they interfere with grazing by zooplankton and alter patterns of nutrient supply and elemental recycling (Gobler et al. 2017).

Along the U.S. Atlantic coast, warm-temperate fish species fish assemblages may benefit from climate changes that are impacting cooler-water species, by expansion of their range to more northern estuaries. One of the most compelling examples of this phenomenon is Narragansett Bay, Rhode Island. Nye et al. (2009) documented changes in the abundance and latitudinal distribution for several bottom-dwelling species, which were historically abundant and characteristic of the Narragansett Bay winter fish community, including red hake (Urophycis chuss), and silver hake (Merluccius bilinearis). Simultaneously, the abundance of warm water species that migrate into the Bay during summer such as butterfish (Peprilus triacanthus) and scup (Stenotomus chrysops) increased.  These changes coincided with a 90% decline in winter flounder (Pseudopleuronectes americanus) abundance in the Bay (Oviatt 2004, Jefferies et al. 2011). Winter flounder spawn in estuaries at temperatures ranging from 1 to 10 °C, with optimal spawning conditions at 2 to 5 °C. The evolution of cold water spawning in winter flounder is a mechanism for avoiding predation on newly emerged/metamorphosing larvae, principally by sand shrimp (Crangon septemspinosa). Winter flounder eggs hatch when sand shrimp have historically been absent or dormant in the Bay. However, as winter water temperatures increased, sand shrimp remained active and consumed flounder larvae (Taylor and Collie 2003). Warmer waters are also associated with greater egg mortality rates, reduced larval growth rates, and diminished larval condition (Keller and Klein-McPhee 2000). Winter flounder have historically exhibited long-term cyclical abundance patterns; however, abundance peaks have diminished in recent decades.

Further south, faunal shifts have also been documented for the Hudson-Raritan Estuary, including the extirpation of rainbow smelt (Osmerus mordax). Smelt abundance in Hudson River tributaries began to decline during the 1970s, and the last recorded specimen from the Hudson drainage was collected in 1998 (Waldman 2006). Another cold-water species, Atlantic tomcod (Microgadus tomcod), has also diminished in the lower Hudson River; a contributing factor may be the species’ naturally short lifespan at this extreme southern portion of their distributional range (most Hudson River tomcod only live one year compared to 3 to 4 years in the northern reaches of their range). It is expected that the Hudson River population will further diminish, and perhaps become extirpated entirely in the coming decades (Waldman 2014).

In contrast, gizzard shad (Dorosoma cepedianum), historically rare north of Sandy Hook, New Jersey, colonized the Hudson River during the 1970s and has become established as far north as the Merrimack River, Massachusetts.  Channel catfish (Ictalurus punctatus), another species most often associated with aquatic habitats (including large coastal river basins) to the south of the Hudson drainage, became increasingly abundant in the tidal Hudson river during the mid- to late-1990s (Daniels et al. 2005). Another recent faunal shift in the Hudson-Raritan Estuary is the increasing presence of species in the drum family (Sciaenidae), including Atlantic croaker (Micropogonias undulatus), spotted seatrout (Cynoscion nebulosus), and red drum (Sciaenops ocellatus). These species are most often associated with estuaries to the south such as Delaware Bay and Chesapeake Bay, and Albemarle-Pamlico Sound (Waldman 2014).

The coastal management community is paying close attention to changes in the distribution and abundance of marine and estuarine biota, as well as other climate-related impacts on coastal habitats, water quality, and recreation. Future climate projections and vulnerability may require re-assessing present-day federal, state, and local water quality (e.g., temperature and dissolved oxygen) standards for estuaries and coastal waters. For example, meeting existing thermal standards may represent an increasing challenge for electrical power generating facilities and other industries which discharge heated effluent into estuaries and coastal bays. Maintaining compliance will likely require the development of newer, more efficient technology and operational procedures, especially if regulators were to adopt more stringent (protective) criteria to protect coastal resources.

Power Plant (photo by Dr. Yozzo)

The U.S. Environmental Protection Agency’s (EPA) National Estuary Program (NEP) has identified projected Increases in ocean surface temperature as a key vulnerability of its program to protect and restore the water quality and ecological integrity of estuaries of national significance. EPA’s Climate Ready Estuaries Program (https://www.epa.gov/cre) provides resources to support individual NEP component programs, and the coastal management community, in identifying climate vulnerabilities, developing adaptation measures/strategies and educating and engaging local stakeholders affected by climate change impacts in coastal areas throughout the U.S.

 

 

 

Literature Cited

Araujo, F.G., T.P. Teixeira, A.P.P. Guedes, M. C. C. de Azevedo and A.L.M. Pessanha. 2018. Shifts in the abundance and distribution of shallow water fish fauna on the southeastern Brazilian coast: a response to climate change. Hydrobiologia 814: 205-218.

Crozier, L.G. and J.A. Hutchings. 2014. Plastic and evolutionary responses to climate change in fish. Evolutionary Applications 7:68-87.

Daniels, R.A., K.E. Limburg, R.E. Schmidt, D.L. Strayer and R.C. Chambers. 2005. Changes in Fish Assemblages in the Tidal Hudson River, New York. American Fisheries Society Symposium 45:471–503.

Gobler, C. J., O.M. Doherty, T.K. Hattenrath-Lehmann, A.W. Griffith, Y. Kang and R.W. Litaker. 2017. Ocean warming since 1982 has expanded the niche of toxic algal blooms in the North Atlantic and North Pacific oceans. Proceedings of the National Academy of Sciences, 114: 4975-4980.

IPCC 2014. Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 1132 pp.

James, N.C., L. van Niekerk, A.K. Whitfield, W.M. Potts, A. Gotz and A.W. Paterson. 2013. Effects of climate change on South African estuaries and associated fish species. Climate Research 57: 233–248.

Jeffries, H.P., A. Keller and S.Hale. 2011. Predicting Winter Flounder (Pseudopleuronectes americanus) Catches by Time Series Analysis. Canadian Journal of Fisheries and Aquatic Sciences 46:650-659.

Keller, A.A. and G. Klein-MacPhee. 2000. Impact of elevated temperature on the growth, survival, and trophic dynamics of winter flounder larvae: a mesocosm study. Canadian Journal of Fisheries and Aquatic Sciences 57: 2382-2392.

Koenigstein, S., F.C. Mark, S. Gofsling-Reisemann, H. Reuter and H. Poertner. 2016. Modelling climate change impacts on marine fish populations: process-based integration of ocean warming, acidification and other environmental drivers. Fish and Fisheries 17: 972–1004.

MacCall, A.D. 1990. Dynamic Geography of Marine Fish Populations. Seattle: University of Washington Press.

Nicolas, D., A. Chaalali, J. Drouineau, J. Lobry, A. Uriarte, A. Borja and P. Boet. 2011. Impact of global warming on European tidal estuaries: some evidence of northward migration of estuarine fish species. Regional Environmental Change Journal 11:639–649.

Nye, J.A., J.S. Link, J.A. Hare and W.J. Overholtz. 2009. Changing spatial distribution of fish stocks in relation to climate and population size on the Northeast United States continental shelf. Marine Ecology Progress Series 393: 111-129.

Oviatt, C.A. 2004. The changing ecology of temperate coastal waters during a warming trend. Estuaries 27:895–904.

Pyke, C. R., R. G. Najjar, M. B. Adams, D. Breitburg, M. Kemp, C. Hershner, R. Howarth, M. Mulholland, M. Paolisso, D. Secor, K. Sellner, D. Wardrop, and R. Wood. 2008. Climate Change and the Chesapeake Bay: State-of-the-Science Review and Recommendations. A Report from the Chesapeake Bay Program Science and Technical Advisory Committee (STAC), Annapolis, MD. 59 pp.

Roessig, J.M., C. M. Woodley, J.J. Cech, Jr. and L.J. Hansen. 2004. Effects of Global Climate Change on Marine and Estuarine Fishes and Fisheries. Reviews in Fish Biology and Fisheries 14: 251–275.

Sinclair, M. 1988. Marine Populations: an Essay on Population Regulation and Speciation. University of Washington Press, Seattle, WA.

Taylor D.L. and J.S. Collie. 2003. Effect of temperature on the functional response and foraging behavior of the sand shrimp Crangon septemspinosa preying on juvenile winter flounder Pseudopleuronectes americanus. Marine Ecology Progress Series 263:217–234.

Vinagre, C., F.D. Santos, H.N. Cabral and M.J. Costa. 2009. Impact of climate and hydrology on juvenile fish recruitment towards estuarine nursery grounds in the context of climate change. Estuarine, Coastal and Shelf Science 85:479-486.

Waldman, J.R. 2006. The diadromous fish fauna of the Hudson River: life histories, conservation concerns, and research avenues. Chapter 13, pp. 171-188 in: J.S. Levinton and J.R. Waldman, (Eds.) the Hudson River Estuary. Cambridge University Press, New York.

Waldman, J. 2014. Climate change: a cool-eyed look at fishing in our warmer waters. The Fisherman, March 2014: 4-7.

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Great Ecology’s Blog Named a Top 40 Blog of 2018

Great Ecology is proud to announce that our blog was selected as one of the top 40 ecology blogs of 2018 by Feedspot (we’re number 18, and in good company with folks like The Prairie Ecologist, Sonoma Ecology Center, and The Applied Ecologist’s Blog, just to name a few!). We strive to make complex research accessible, keep on the forefront of the latest trends in ecological science, and highlight innovations, designs, policies, and ideas that are important to our field.

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Upwells of Life and Oil

By Amber Jackson

If someone asks you to describe spring or summer, you might talk about new life, with pops of color flowering in open spaces and on trees, and a seemingly endless soundtrack of bird songs. The land, however, is not the only place where life is replenished in the spring and summer months. The ocean, with its seemingly unchanging surface, is also privy to the productivity of these seasons, especially off the coast of California, where the winds and deep underwater canyons provide the perfect conditions for upwelling. These coastal upwelling regions are relatively rare, accounting for less than 1% of the ocean surface, however, they are incredibly productive regions and contribute roughly 50% of the world’s fishing landings.

Life Beneath a Platform (in Gulf of Mexico)

But before we dive below the surface, imagine the feel of a breeze across your skin. Winds create a powerful and direct effect on oceans and are an important force in creating currents. From the global circulation of entire ocean systems to small eddies nearshore, winds move water and its resident animals and plants in complex and interesting patterns.

In the spring and summer months, warm winds from the north blow parallel to the coastline towards southern California. When this occurs, an intriguing and biologically important event takes places. Affected by the rotation of the earth, these winds move water at right angles to the direction the wind is blowing, a phenomenon known as the Coriolis effect. Along the California coastline, winds that blow from the north drive surface waters offshore. As surface waters are pushed offshore, water is drawn from below to replace them. The upward movement of this deep, colder water is called upwelling.

Upwelling brings cold, nutrient-rich waters to the surface, which encourages the growth of large blooms of phytoplankton. The phytoplankton blooms form the ultimate energy base for large animal populations higher in the food chain, such as tuna, seabass, and even large marine mammals, like whales. Although an impressive biological event, this is not the only major consequence of upwelling because upwelling also affects animal movement. Upwelling moves nearshore surface water offshore and takes with it whatever is floating in the water column, such as larval young produced by most marine fish and invertebrates. These larvae are tiny, ranging from microscopic to the size of a potato chip, and they spend the first few weeks or months of life adrift in the water column. Upwelling that moves surface water offshore can potentially move drifting larvae long distances away from their natural habitat, to shelters such as a nearby oil and gas platform.

This past spring, I experienced the plethora of larval young swarming around California’s offshore oil and gas platforms. Although my dive partners and I focused our cameras on the anemone-covered beams, and the sea lion curiously swimming by, when we revisited our footage after the dive we found that many of the photos had been “photobombed” by a larva that landed on the lens! Even, when we exited the water, we noticed that our wetsuits were crawling with life. It was quite a shock to see thousands of tiny white shrimp and other larvae contrasted against our black wetsuits.

Larva Photobombing!

Offshore oil and gas platforms don’t cause upwelling but act as a landing site for those larvae displaced by upwelling. In fact, the vertical platform structures may cause a slight shift in current direction that mixes the surrounding ocean nutrients. This mixing, although small, provides the distribution of an important foundational food source for other, larger fish that call offshore oil and gas platforms home—which contributes to these offshore platforms being an important fisheries resource that can be disrupted if the platform is completely removed after it is decommissioned.

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Plants with a Purpose

by Jared Huennekens

Horticulture Encounter, ‘Plants with a Purpose’, Miramar Landscape Center and Growing Grounds

When I stepped into the Village Nurseries’ Horticulture Encounter, ‘Plants with a Purpose,’ at the Miramar Landscape Center and Growing Grounds, my senses felt bombarded with incoming stimulus. Like an owl who’s spotted a nest of mice, my head flew in circles absorbing an array of aromatic and beautiful plants.

The Encounter, curated by Suzie Wiest, a one stop shop for all your horticulture questions, boasts a robust collection of plants highlighting relevant landscape topics within San Diego county: fire resistance, edible flowers, fillers, deer and rabbit tolerance, pollination, pairings, and plants that promote well-being (health, productivity, and happiness). The San Diego office of Great Ecology (and the office dogs!) had the pleasure to learn and engage in a productive dialogue concerning these plants and the plants we use in our own projects and homes. Wiest has over 20 years of experience of experience in wholesale industry and her ability to navigate landscaping issues, pollination, native versus non-native species, and water resiliency was impressive to say the least.

For Great Ecology, the fire resistance collection titled ‘Blaze Battlers’ poses particular relevance to upcoming projects such as trail routing at Camp Ramah because of the recent wildfires in Southern California. Wiest developed a phenomenal collection to address our wildfire outbreaks and increase the ecological health of impacted spaces.

This collection was of particular interest to us, not only for large landscaping projects conducted at Great Ecology, but the yards and canyons in our neighborhoods. For me, this collection could mean a difference in the way my friends and family experience wildfires. At  four years old, I was forced to evacuate my home because of wildfires in our area. Over the next 15 years, three major wildfires have occurred in my area burning down a few of my friends homes and favorite natural environments.

Horticulture Encounter

Many plants within the collection deserve mention on the merit of their beauty, aroma, and potential value as a sustainable solution (not specific to California). An exceptional succulent, the hybrid Aloe ‘Always Red,’ blooms masses of stark, blood-red blooms ten months of the year. Light frost, rain, and drought pose no threat for this South African native known as a magnet for droves of hummingbirds. The needle-like red and white bloom on the evergreen shrub Grevillea hybrid ‘Kings Celebration’ stood apart along with the Verbena lilacina ‘De La Mina,’ a fragrant purple bloom that attracts hosts of butterflies and bees. My personal favorite, the ‘Meerlo’ Lavender, displays an unassuming, untraditional cream, pale green color, but its aroma permeates my mind to this day, a week later.

Unfortunately, describing the beauty and smell of these plants is akin to a food critic describing a 12 course meal at Noma or google searching the Northern Lights. Nothing compares to the real thing.

Laurel with Her Pup, Scooter, at the Horticulture Encounter

The Great Ecology team enjoyed our visit and would like to thank Suzie Wiest along with the Village Nursery for allowing us to escape the routine of the  work day, spend time outside learning about plants that influence our ecological works, and letting us take home a few plants free of charge!

 

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Public Notice for the South San Diego Bay Wetland Mitigation Bank Released for Public Comment

The Public Notice for the South San Diego Bay Wetland Mitigation Bank (Bank) Prospectus has been released by the U.S. Army Corps of Engineers for public comment. Great Ecology led the development of the Prospectus on behalf of the Bank Sponsor, the Port of San Diego (Port), and its release is the culmination of three years of collaboration between the Port and the Great Ecology team. The proposed 80-acre wetland mitigation bank is located within an 83.5-acre parcel owned by the Port, and if approved, will include the establishment, re-establishment, and rehabilitation of tidal wetland and upland transitional habitats. Tidal wetlands, and their associated buffers, provide important ecosystem services, support nursery habitat for fisheries of ecological and commercial importance, and act as key feeding and breeding grounds for coastal and migratory bird species.  Great Ecology’s team includes ESA and RECON who provided engineering, hydrological, and restoration biology design.

The Bank Site is located within a former salt pond in San Diego. Historically, this salt pond was part of the Western Salt Work Company and served as a part of a network of condensation and crystallization salt evaporator ponds. Today, the Bank Site is largely upland and surrounded by large earthen berms, which isolates the interior of the site from tidal flows and prevents it from being a tidal wetland. The proposed project will restore tidal wetlands to the site by reducing the overall site elevation and breaching the surrounding berm to allow tidal flows to enter the site.

The completed project will include subtidal eelgrass, mudflat, transition zone, and upland habitats. The majority of the site’s historic perimeter berms will remain to provide a hydrological buffer around the site.

The Port and Great Ecology team are focusing on the next steps of the project planning, permitting, and bank entitlement process.

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Great Ecology Welcomes Justin Apfel

Great Ecology is thrilled to welcome Justin Apfel to the team! Justin is an ecologist with experience in wetland permitting, tidal and non-tidal stream assessments, GIS, subsurface contamination examinations, and stormwater management. He has previously served an AmeriCorps term and hiked portions of the Appalachian Trail (primarily in Virginia). In his free time, he enjoys snowboarding, fishing, and rock climbing. Justin is joining our Denver office.

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Exploring Urban Green Space

by Jared Huennekens

High Line in New York, from Wikipedia (Image by Beyond My Ken)

Our environment plays an instrumental role in determining our ability to rise in social and economic class in America. Yet, not all environments are created equal.

By the year 2025, 65% of the world’s population is expected to live in urban environments. In America, people of color and low income Americans experience a disproportionate lack of green space within their communities–which have, in recent history, been urban environments. By instituting green space, urban environments may improve wellbeing of residents in disinvested communities, boost their economic performance, and address ecological concerns such as stormwater runoff and air quality.   

Green space development attempts to balance economic, ecological, and environmental justice themes into a comprehensive framework. When green space development occurs, property values increases. For example, the High Line, an old train line converted into a green walkway in New York City, attracts millions of visitors a year and thus, despite a deep recession, between 2003 and 2011 nearby property value increased by 103% and $2 billion was invested in property development. Although property and business owners benefited an immense amount from the High Line, green space development aims to help disinvested communities – people of color and low income Americans who suffer from a disproportionate lack of green space.  

Unfortunately, the High Line and other green space projects have acted as a catalyst for gentrification. As overall neighborhood conditions improve, rent increases for residents and they’re forced into communities without established support systems. Residents may find themselves separated from family members or friends, without community-based organizations like after school programs that provide additional education for children, with even less green space than before (re)development occured, and farther from work, health-care services, welfare offices, or healthful food. Without an emphasis on environmental justice–and input from the communities being impacted–green space development ignores the very people it aims to help. In addition, ecological considerations should motivate projects, instead of aesthetic prioritization. When beauty is prioritized, not only are there few ecological benefits such as improved water infiltration, stormwater capture, or localized cooling of air or water, residents are inhibited from recreational activities that can promote better physical health, improved community connections, and decreased stress levels.  

In a Comprehensive concept planning of urban greening based on ecological principles: a case study in Beijing China, Feng Li et al. establish a green space framework aimed at long-term, achievable sustainability on the regional, city, and neighborhood levels. The regional level constitutes large scale buffer zones, forests, and farmlands on the outskirts of urban areas. When approaching city and neighborhood green space development, disinvested community priorities need to inform what type of green space development occurs. A bottom up approach ensures “just enough green space” will arise to increase the psychological well-being of residents and create a healthier ecological environment in the area, yet not cause property values to increase so much as to force residents from their homes. Feng Li et al. advise on the city level to create a green network system of wedges, parks, and green corridors that  connects the regional and neighborhood levels, establishing migration pathways and habitats. For neighborhoods, utilization of vacant lots and greening sidewalks, medians, rooftops, and riversides has abundant potential for ecological and psychological health benefits. By breaking green space development into three categories, developers are better able to build connections between spaces, build a greater ecological vision for a region, and identify underdeveloped or unprotected areas.

When developers institute a bottom up approach, they’re placing the needs of the community before economic incentives by integrating the community into the development process. Developers need constant communication with community leaders before, during, and after green space implementation  to design a successful green space that address community needs. Planners need to ask questions such as what their priorities are for improving the community, what type of green space they prefer, and what their major concerns are for implementation. For people of color and low income Americans, their list of priorities may rank environmental injustices lower than other wicked problems such as poverty, homelessness, education, employment, affordable housing, and mass incarceration to name a few. Resources directed towards disinvested communities needs to address issues most important to disinvested communities. Often, more pressing matters should take priority over urban greening. By asking community members what type of green space they prefer and their major concerns, planners can institute green spaces that maximize the wellbeing of residents. For example, a green walkway and cafe gears towards the needs of middle and upper class and may lead to gentrification in an area while cleaning up a toxic creek decreases exposure to harmful materials without increasing property value an exponential amount. When developers deploy this principle of “just enough green space” to mitigate the effects of gentrification, projects may not be economically viable because people don’t flood the surrounding area leading to stagnanet property value and business incentives. These projects address environmental injustices and the needs of community members without adding tremendous economic value to the area.

Street trees, lawns/parks, urban forests, cultivated land, wetlands, lakes, seas, and streams are identified as the seven urban ecosystems by Per Bolund and Sven Hunhammar. Each ecosystem prioritizes different ecological services in urban areas: air filtering, microclimate regulation, noise reduction, rainwater drainage, sewage treatment, and recreational/cultural values.

Ecosystem Services by Ecosystem, per Bolund and Hunhammar (1999)

Although Bolund and Hunhammar identify those ecological services as most important, urban green space can provide other services such as food production, roof longevity, carbon sequestration, and soil erosion mitigation. Food production combines disinvested communities need for green space with another wicked problem: food insecurity and food deserts.

Ron Finley, who envisions a world where “cool kids know their nutrition and where communities embrace the act of growing, knowing and sharing,” promotes urban guerrilla gardening. Based in South Central Los Angeles, he found himself traveling great distances to find an apple without pesticides. Even though Beverly Hills is only a few miles away, South Central’s obesity rate is 10 times higher, which is correlated with a lack of access  to healthful, affordable food. The Ron Finley Project transforms yards and parkways into vegetable and fruit gardens. Finley argues Los Angeles should utilize their 26 sq. miles of vacant lots, the equivalent of 20 Central Parks, by allowing people to grow food for the community and for themselves. Through projects similar to Finleys, urban greening has the potential to address multiple issues  facing disinvested communities whether that’s food insecurity or their psychological and physical wellbeing.

Different types of green space facilitate different health benefits for nearby residents. Parks encourage physical activity. When children and adults have more access to parks and recreational facilities, more physical activity occurs and obesity rates decrease. Parks and other green spaces are shown to both aid social interactions (linked to improved physical and social-emotional health) and provide an area for residents to experience solitude. Increased exposure to green space rejuvenates residents, enhances contemplation, provides a sense of peace and tranquility, reduces stress, and builds a connection to nature. Vegetable and fruit gardens expose children and adults alike to learning about the food production process, expose them to foods they might not otherwise eat, increase opportunities to do physical activity in the garden, and foster community connections. Ron Finley exclaims in his TedTalk, “If kids grow kale, they eat kale.”

Although there are many positive benefits to urban green space, several negative aspects exist. For example, if developers use non-native vegetation when reviving the ecological health of an area, adverse effects may arise for the environment, including introduction of new weeds or pests. Whenever new ecological features are introduced, residents may suffer from unexpected noise disturbances, increased allergies, or bad odors from improperly managed stormwater conveyance or treatment systems. These annoyances are avoidable if an ecologist or knowledgeable landscape architect informs the development process. Further, there can be unintended economic impacts on residents. Unfortunately, the principle of “just enough green space” to discourage gentrification may mitigate growth, causing the projects to not be cost effective and therefore be rejected by city planners and other decision-makers. All of these factors need to be considered before developing green space in urban environments to ensure sustainable development that benefits communities.  

No resource goes to waste in a natural environment. Urban green spaces, whether community gardens, wetlands, or urban forests, have the potential to transform a wasteful, inefficient artificial environment into a natural environment. Up to 85% of air pollution can be filtered out in a park. Tree cover can reduce total energy costs for heating and cooling by $90 per dwelling per year. And, wetland restoration has potential to treat wastewater and stormwater significantly before it re-enters streams or sewers while increasing increasing biodiversity. Urban greening diminishes the negative effects of urbanization, improves the well-being of residents, and enhances the economic performance of an area. Through this development, people are more capable to create healthier communities and rise in socioeconomic class.

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All We Need is Some Vitamin Green

By Gali Laska

Your local city park is likely playing a vital role in your city’s health, and probably your own mental health too. Parks and other “green spaces” help keep cities cool, and as places of recreation, can help with health issues such as anxiety and depression. Just looking at greenery can make you feel better! But in increasingly crowded cities, it can be difficult to find room for parks and other green spaces. About 66% of the world’s population lives in a bustling loud city. But do they know that the lack of green may be the reason they feel less motivated, happy and fulfilled?

Central Park Rendering – Great Ecology

Most likely not, considering that when architects and city planners initially created the blue prints for their cities, they didn’t realize it either. Something has to change, and it is changing—toward greener cityscapes. Great Ecology works everyday with different municipalities and businesses that need assistance in making their properties more ecologically friendly. This includes developing better management plans for city parks, converting nonnative landscapes to native landscapes to improve resiliency, developing mitigation plans, helping coastal areas plan for sea-level rise, and creating stormwater wetlands.

And, we hardly work alone in this. The importance of greener cities is being researched on many fronts, from ecological to psychological impacts.

Over the past 25 years, psychologists have begun to understand the impact that the urban environment has on its citizens. Researcher Colin Ellard, who studies the psychological impact of design at the University of Waterloo in Canada, found that people are strongly affected by building façades. He performed an experiment where individuals were instructed to walk past specific buildings while wearing a bracelet that monitors skin physiological arousal. When the subjects would walk past a long, smoked glass frontage of a grocery store for example, arousal took a dive and they quickened their pace, as if to get out of that area. As soon as they entered a stretch of restaurants their arousal picked up and their pace slowed down. Each restaurant was surrounded by various plants and other eye-catching additions to make for a more arousing place.

What do the findings of this study tell us? Colin Ellard shared the following sentiment “Historically, the attitude toward the importance of green space has been basically to consider the presence of greenery as an aesthetic nicety, rather than as something of fundamental importance to people’s psychological state.” We need to start building with the thought of mental and physiological health in mind, not just feel good aesthetics. Having more plants can lower blood pressure, reduce muscle tension, improve attention, and reduce the feeling of fear and aggression.

Studies have shown that patients recovering from surgery in a room overlooking trees recovered faster and with less fewer complications than those overlooking a brick wall. Having a greener environment not only affects mental health, but also physical health. In children, ADD symptoms are relieved after contact with nature. Green spaces may enable people to think more clearly and cope more effectively with life’s stresses. Overall green is good. Whether it means reducing symptoms or increasing happiness, the need for green in the everyday life is a necessity. Perhaps this is linked to what E.O. Wilson coined as “biophilia.”

Biophilia is the positive effect that being around blue water, green trees and space give us.  It is also the love of earth and the environment. Biophilia suggests that humans seek connections with nature and other forms of life. It makes us healthier, more productive, and more generous.

That’s nice, of course, but how do we implement this in our cities?

Amanda Burden had a huge part of making New York into a greener city. Burden fought for the High Line and for making a public space for citizens to be able to enjoy the environment. Amanda said “Public space always need vigilant champions. Not only to claim them at the outsets of public use but to design them for the people that use them, then to maintain them to ensure that they are for everyone…Public spaces have power. It’s not just the number people using them, but the even greater amount of people that feel better about their city just knowing that they are there.”

You may ask: Does having a greener environment affect my social life? The answer is yes. When living the busy life, you might not have enough time to just be, and take in your surroundings, especially if your surroundings consist of cement and bustling streets. Even those of us who aren’t living in the city may feel stuck in harried lives filled with the need for speed and technology.

Most of us are constantly doing things that keep us busy—and as a result we don’t make  time to stop and look around. If a city (or any other local government) fosters inviting green spaces that make it easier to have social interactions outside, mental health would likely improve.

Dr. Andrew Lee, a public health researcher at the University of Sheffield in England says: “If it’s a social space where people meet together and chat and go on walks, that kind of social contact and interaction builds social networks, that’s probably where the real impact is coming from that gives people a sense of wellbeing.”

While city officials have work to do, we need to spend more time looking out at the world instead of looking down at our screens. We need to surround ourselves with human interaction and nature so that our mood and our lifestyle improve. Making public places more accessible—and encouraging people to use them and letting them know how their lives are affected without them—can improve the health and well-being of citizens.

 

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Great Ecology Welcomes Jessica L. Foley

Great Ecology is thrilled to welcome our newest team member! Jessica L. Foley, a former John A. Knauss Marine Policy Fellow and policy analyst with the National Oceanic and Atmospheric Administration (NOAA), is joining the Denver office. She has experience working in varied settings, both nationally and internationally, at the federal and local government level, in the non-profit sector, in private industry, and in academia on local to global issues. She has helped communities plan for sea level rise, create and implement invasive species management plans, integrate the use of green infrastructure, and maintain Clean Water Act (CWA) compliance. In addition, she has led research on the impacts of climate change on eelgrass (Zostera marina), which is the base of highly functional marine ecosystems along the U.S. coast. In her free time, Jessica enjoys exploring, hiking, and snowboarding in Colorado’s beautiful mountains and playing the violin.

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