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Ecosystem classification system
Forest-Range Environmental Study Ecosystems, known as FRES, is a system for the classification of ecosystems developed by the United States Forest Service
Forest-Range Environmental Study Ecosystems
Forest-Range_Environmental_Study_Ecosystems
Forest ecosystems of oak and pine trees
Under the Forest-Range Environmental Study Ecosystems classification these are denoted as FRES 14. FRES14 includes the Kuchler system forest types of
Pine–oak_forest
Forest type
Hemlock and Douglas fir. The forest type is classified as part of FRES20 in the Forest-Range Environmental Study Ecosystems classification, and K-2 Kuchler
Cedar hemlock douglas-fir forest
Cedar_hemlock_douglas-fir_forest
Topics referred to by the same term
Royal Entomological Society Flesch Reading Ease Score Forest-Range Environmental Study Ecosystems Future Rapid Effect System, of the British Ministry of
FRES
Benefits provided by intact ecosystems
For example, estuarine and coastal ecosystems are marine ecosystems that perform the four categories of ecosystem services in several ways. Firstly, their
Ecosystem_service
Any change or disturbance to the environment perceived to be deleterious or undesirable
resources such as quality of air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution. It is
Environmental_degradation
Generic forest in the tropics
improve forest land allocation and a Payments for Forest Environmental Services scheme. Gallery forest Jungle Primary forest Secondary forest Savanna
Tropical_forest
Land use management system
ethnobotanical studies carried out by anthropologists. However, indigenous communities that have lived in close relationships with forest ecosystems have practiced
Agroforestry
Ecosystem in saltwater environment
Marine ecosystems are the largest of Earth's aquatic ecosystems and exist in waters that have a high salt content. These systems contrast with freshwater
Marine_ecosystem
already now altering biomes, adversely affecting terrestrial and marine ecosystems. Climate change represents long-term changes in temperature and average
Effects of climate change on biomes
Effects_of_climate_change_on_biomes
Branch of forestry
progression of environmental awareness, management of forests for multiple use is becoming more common. Forests provide a variety of ecosystem services: cleaning
Forest_management
Part of the forest ecosystem
(2013). "Belowground Ecosystems: The Foundation for Forest Health, Restoration and Sustainable Management". Journal of Environmental Assessment Policy and
Forest_floor
Underwater areas highly dense with kelp
recognized as one of the most productive and dynamic ecosystems on Earth. Although algal kelp forest combined with coral reefs only cover 0.1% of Earth's
Kelp_forest
Collection of trees within a city, town or a suburb
natural ecology in urban forests. There are numerous projects underway aimed at restoration and preservation of ecosystems, ranging from simple elimination
Urban_forest
Scientific study of renewing and restoring ecosystems
processes, and further support interactions within ecosystems. There are many reasons to restore ecosystems. Some include: Restoring natural capital such as
Ecological_restoration
Global forest certification system
world's forests via timber certification. This organization uses a market-based approach to transnational environmental policy. FSC is a global forest certification
Forest_Stewardship_Council
Global index of forest condition
condition that estimates the degree of anthropogenic modification of forest ecosystems. Developed by an international research team led by the Wildlife Conservation
Forest Landscape Integrity Index
Forest_Landscape_Integrity_Index
Uncontrolled fire in forests or open spaces
wildfire, forest fire, brushfire or a bushfire is an unplanned and uncontrolled fire in an area of combustible vegetation. Some natural forest ecosystems depend
Wildfire
Ecosystem in a body of water
aquatic ecosystem is an ecosystem found in and around a body of water, in contrast to land-based terrestrial ecosystems. Aquatic ecosystems contain communities
Aquatic_ecosystem
Study of interactions between the biota and environment in forests
Forest ecology is the scientific study of the interrelated patterns, processes, flora, fauna, funga, and ecosystems in forests. The management of forests
Forest_ecology
Quadrennial Ecosystems Services Trends (QuEST) Assessment” that studying trends in ecosystem performance, quality, and value. Ecosystem valuation attempts
Ecosystem_valuation
Concerns and policies regarding the biophysical environment
Environmental issues are disruptions in the usual function of ecosystems. Further, these issues can be caused by humans (human impact on the environment)
Environmental_issues
Life zone in eastern North America
what remains of Canada's Carolinian forest". canadiangeographic.ca. Retrieved 2026-03-23. "Rare Species and Ecosystems - Carolinian Species & Habitats".
Carolinian_forest
Productive wetlands that occur in coastal intertidal zones
mangrove ecosystems, including runoff and flood prevention, storage and recycling of nutrients and wastes, cultivation and energy conversion. The forests are
Mangrove_forest
Bacteria
"Microbial activity and the dynamics of ecosystem processes in forest soils". Current Opinion in Microbiology. Environmental microbiology * CRISPRcas9. 37: 128–134
Saprotrophic_bacteria
Conversion of forest to non-forest for human use
Pearce, David W (December 2001). "The Economic Value of Forest Ecosystems" (PDF). Ecosystem Health. 7 (4): 284–296. doi:10.1046/j.1526-0992.2001.01037
Deforestation
Forest that has developed over a long period of time without disturbance
Secondary forest – Forest or woodland area which has re-grown after a timber harvest Sky island – Geographic or environmental feature Subalpine – Ecosystems found
Old-growth_forest
Area of land in New Hampshire, U.S.
HBEF was used for research in forestry but soon its value for study of the forest ecosystem was recognized and it attracted the interest of researchers
Hubbard Brook Experimental Forest
Hubbard_Brook_Experimental_Forest
Sustainable use of nature for tackling socio-environmental challenges
or minimal intervention in ecosystems, with the objectives of maintaining or improving the delivery of a range of ecosystem services both inside and outside
Nature-based_solutions
Natural resource management technique
Ranges". Fire Management Today. 64 (3): 15–22. Williams, Gerald W. "References on the American Indian Use of Fire in Ecosystems" (PDF). USDA Forest Service
Native American use of fire in ecosystems
Native_American_use_of_fire_in_ecosystems
Incentives offered to farmers or landowners
Payments for ecosystem services (PES), also known as payments for environmental services (or benefits), are incentives offered to farmers or landowners
Payment for ecosystem services
Payment_for_ecosystem_services
American ecologist
the Hubbard Brook Ecosystem Study at the Hubbard Brook Experimental Forest in 1963, and founded the Cary Institute of Ecosystem Studies in Millbrook, New
Gene_Likens
Study of living and non-living components of ecosystems and their interactions
Ecosystem ecology is the integrated study of living (biotic) and non-living (abiotic) components of ecosystems and their interactions within an ecosystem
Ecosystem_ecology
Community of living organisms together with the nonliving components of their environment
ecological resilience. Ecosystems can be studied through a variety of approaches—theoretical studies, studies monitoring specific ecosystems over long periods
Ecosystem
Large rainforest in Central America
Mesoamerican Biological Corridor. The Maya Forest comprises more than 20 ecosystems. It is home to a wide range of animals, including jaguars, monkeys, parrots
Maya_Forest
Practice of protecting the natural environment
An ecosystems approach to resource management and environmental protection aims to consider the complex interrelationships of an entire ecosystem in decision-making
Environmental_protection
Type of resource management
management, fisheries management, forest management, wildlife management, environmental management systems, and others. Environmental resource management is an
Environmental resource management
Environmental_resource_management
Wildland-ocean interface
impacting coastal ecosystems with sea level rises, ocean acidification, and increased storm frequency and intensity. When marine coastal ecosystems are damaged
Marine_coastal_ecosystem
Subarctic terrestrial ecozone
changes to ecosystems, displacing cold-adapted species, increasing forest fires, and making ecosystems vulnerable to changing to other ecosystem types. These
Boreal_ecosystem
Forest in Uganda
and study the reserve's different ecosystems. These investigations advance our knowledge of ecosystem functioning, species interactions, and forest dynamics
Nyamakere Central Forest Reserve
Nyamakere_Central_Forest_Reserve
Species of plant
It is a very adaptable species, which can inhabit a wide variety of ecosystems; once it has been introduced into a habitat it spreads rapidly; between
Lantana_camara
Large rainforest in South America
Struggle for Rubber: A Study in Environmental History. Cambridge University Press. Goulding, Michael (2021). The Fishes and the Forest: Explorations in Amazonian
Amazon_rainforest
Environmental racism is a form of institutional racism, in which people of color bear a disproportionate burden of environmental harms, such as pollution
Environmental racism in the United States
Environmental_racism_in_the_United_States
social science Environmental sociology Environmental standard Environmental statistics Environmental studies Environmental suit Environmental Sustainability
Index of environmental articles
Index_of_environmental_articles
Actions to reinstate forest health
those typical of climax forest", i.e. the end-stage of natural forest succession. Climax forests are relatively stable ecosystems that have developed the
Forest_restoration
Living and non-living things on Earth
also pertain to human-made environments, such as human ecosystems and human-influenced ecosystems. It can describe any situation where there is relationship
Natural_environment
Plant community where Pinus ponderosa is common
et al. (1977). "Vegetation and environmental features of forest and range ecosystems" (PDF). Washington D.C.: US Forest Service. pp. 21–22. Agriculture
Ponderosa_pine_forest
system, and forest ecosystems; and 9. Economic assessments of (a) the environmental impacts caused by acidic precipitation on crops, forests, fisheries
National Acid Precipitation Assessment Program
National_Acid_Precipitation_Assessment_Program
other human land uses have led to widespread damage. New Zealand's forest ecosystems for example are being considered as the second most endangered of
Environment_of_New_Zealand
Ongoing extinction event caused by human activity
roles in ecosystems and so their extinctions could lead to ecological cascades that would influence the structure and function of future ecosystems beyond
Holocene_extinction
"Environment Protection Authority Environmental Information Management Directorate Fact Sheet of Katasa Forest Ecosystem In Amhara Region" (PDF). Workayehu
Khatasa_Forest
Large animals with popular appeal
areas of limited, and often patchy, range compared to the historic ranges of the respective species. Environmental activists and proponents of ecotourism
Charismatic_megafauna
Research institute in Brunei
environmental sciences research and education. IBER's location within the northwest Borneo hotspot offers unique opportunities for long-term studies in
Institute for Biodiversity and Environmental Research
Institute_for_Biodiversity_and_Environmental_Research
DNA sampled from the environment rather than directly from an individual organism
May 2026). "A Comparative Study of iDNA and airDNA for Biodiversity Assessments in Tropical Forest Fragments". Environmental DNA. 8 (3) e70285. doi:10
Environmental_DNA
basis for risk analysis, resource management, and environmental study of the continent's ecosystems. In the United States, the EPA and the United States
List of ecoregions in the United States (EPA)
List_of_ecoregions_in_the_United_States_(EPA)
Study of organisms and their environment
intrinsic value. Ecosystems vary from tiny to vast. A single tree is of little consequence to the classification of a forest ecosystem, but is critically
Ecology
Spatial arrangement and interrelationships of components within an ecosystem
(secondary predators). In simpler ecosystems (e.g., agrocenosis), level 4 may be absent, while complex ecosystems may include higher levels. In productivity
Ecosystem_structure
Environmental problems caused by warfare
nuclear weapons has increasingly created stress on ecosystems and the environment. Environmental toxicants like heavy metals linger for numerous decades
Environmental_impact_of_war
Ecoregion in Nigeria
degradation and deforestation of the swamp forest ecosystem of the Niger Delta. Most common cause of environmental degradation and deforestation in the Niger
Niger_Delta_swamp_forests
Part of Earth's aquatic ecosystems
Freshwater ecosystems are a subset of Earth's aquatic ecosystems that include the biological communities inhabiting freshwater waterbodies such as lakes
Freshwater_ecosystem
Restoring of wilderness environments
functions that would have maintained ecosystems prior to human influence, rewilding is open to novel or emerging ecosystems which encompass new species and
Rewilding
Bioregion in Western Australia
the Stirling Range, now preserved within Stirling Range National Park. Soils in the jarrah forest are infertile, especially for phosphorus, and are often
Jarrah_Forest
resources. In Brunei, addressing climate change and enhancing ecosystem vitality, environmental health, and catastrophe resilience all have the potential
Environmental issues in Brunei
Environmental_issues_in_Brunei
Environmental efforts to restore forest cover in Nigeria
Equatorial forests, such as those in Nigeria, are often biodiverse ecosystems that support various flora and fauna, promoting ecological balance. Forests play
Reforestation_in_Nigeria
Study of fire in ecosystems
the effects of fire on natural ecosystems. Many ecosystems, particularly prairie, savanna, chaparral and coniferous forests, have evolved with fire as an
Fire_ecology
Variety and variability of life forms
high primary productivity in the region near the equator. Tropical forest ecosystems cover less than one-fifth of Earth's terrestrial area and contain
Biodiversity
Tropical forest, savanna, and grassland ecoregion in West Africa
species adapted to varying ecological conditions. Like many ecosystems worldwide, the Guinean forest–savanna mosaic is susceptible to the impacts of climate
Guinean_forest–savanna_mosaic
Species of bird
range. Overhunting also plays perhaps the most important role in the endangered status of the dwarf ibis. As a large bird that forages on the forest floor
São_Tomé_ibis
basic studies centered on the workings of the forest and stream ecosystems, especially in old-growth forests. In the 1980s, these basic studies continued
Andrews_Forest
Flow of energy through food chains in ecological energetics
aquatic ecosystem than in the forests and grasslands of terrestrial ecosystems. This low biomass relative to photosynthetic material in aquatic ecosystems allows
Energy_flow_(ecology)
Agency of the U.S. Department of Agriculture
insects, degraded river ecosystems, or sustainable ways to harvest forest products. The researchers work independently and with a range of partners (formerly
United_States_Forest_Service
Environmental flows describe the quantity, timing, and quality of water flows required to sustain freshwater and estuarine ecosystems and the human livelihoods
Environmental_flow
Species of beetle
species in local ecosystems. This works to shape the biodiversity of habitats and ultimately builds overall resilience within ecosystems. C. verrucosus
Cyrtophorus_verrucosus
"Importance of Roadless Areas in Biodiversity Conservation in Forested Ecosystems: Case Study of the Klamath-Siskiyou Ecoregion of the United States". Conservation
Inventoried_roadless_area
Classification of land resources based on what can be built and on its use
by the environmental consequences of these changes. For example, deforestation (the systematic and permanent conversion of previously forested land for
Land_use
into groups as follows. Terrestrial ecosystems Forests – Lowland rain forests, dry monsoon forests, montane forests, thorn scrubs Grasslands - Savanna
Natural_forests_in_Sri_Lanka
Ecoregion in Iran and Azerbaijan
forest watersheds are in Gilan province) and Ardabil Province. At higher elevations to the south, the ecoregion grades into the Elburz Range forest steppe
Hyrcanian_forests
and health hazards), and tracking their continued range extension across various Indian ecosystems. With globalization, climate change, and anthropogenic
List of invasive species in India
List_of_invasive_species_in_India
Public park and botanical garden in Bang Kachao, Thailand
Khuean Khan Park supports a diverse range of wildlife due to its varied ecosystems. These ecosystems include forests, wetlands, and aquatic habitats. Bird
Si Nakhon Khuean Khan Park and Botanical Garden
Si_Nakhon_Khuean_Khan_Park_and_Botanical_Garden
Ecosystem event
Trophic cascades are powerful indirect interactions that can control entire ecosystems, occurring when a trophic level in a food web is suppressed. For example
Trophic_cascade
animals can severely impact nearby ecosystems because of its high levels of nitrogen and phosphorus. According to a 2003 study published by the Fur Rancher
Environmental impacts of fur farming
Environmental_impacts_of_fur_farming
Societal goal and normative concept
This process began in the 1970s with concern for environmental issues. These included natural ecosystems or natural resources and the human environment
Sustainability
Ecological concept
transitional zones for overlapping environmental conditions. In this way species from each of these two separate ecosystems are able to co-exist in the same
Edge_effects
Ecoregion in Nigeria and Benin
conduct field trips to teach students about ecosystems and environmental stewardship. Nigerian lowland forests offer protection services that safeguard both
Nigerian_lowland_forests
Study of humans and their environment
Study of household management Human behavioral ecology – Study of human behavior and cultural diversity Human ecosystem – Human-dominated ecosystems of
Human_ecology
rivers and tides. Studies have shown that mangroves exceed the annual mean carbon sequestration rates of various terrestrial forest ecosystems, including tropical
Niger_Delta_mangroves
Type of surface mining
tree seedlings. The new ecosystem differs from the original forest habitat and can have lower diversity and productivity. A study conducted in 2017 found
Mountaintop_removal_mining
Forestry/logging practice in which most or all trees in an area are uniformly cut down
tree harvests, it is used by foresters to create certain types of forest ecosystems and to promote select species that require an abundance of sunlight
Clearcutting
American geographer Robert Bailey defined a hierarchy of ecosystem units ranging from micro-ecosystems (individual homogeneous sites, in the order of 10 square
Ecological_classification
Edge of the habitat at which trees are capable of growing
Montane ecosystems Ecotone: a transition between two adjacent ecological communities Edge effects: the effect of contrasting environments on an ecosystem Massenerhebung
Tree_line
Marine reserve in the United States
immediately north of Anacapa Island. Established to safeguard the marine ecosystems and biodiversity of the region, the reserve is one of the thirteen Marine
Anacapa Island State Marine Reserve
Anacapa_Island_State_Marine_Reserve
Flooded grassland in Florida, United States
National Park was blocked when an environmental study found that it would severely damage the South Florida ecosystem. With heightened awareness and appreciation
Everglades
Atlantic Forest. These biomes with wide variety of species and ecosystems, cover more than 8,500 km of coastline. Geography of Brazil Environmental issues
Biomes_in_Brazil
Turkish woodlands and maquis
Krizi ile Mücadelede Orman Ekosistemleri ve Yutak Alan Yönetimi [Forest Ecosystems and Sink Area Management in Combating the Climate Crisis in Turkey]
Forests_of_Turkey
Natural resource management
and environmental values in such a way that the National Forests and Grasslands represent diverse, healthy, productive and sustainable ecosystems.” A
Ecosystem_management
World's stock of natural resources
Forum Case studies and examples to attribute economic values to ecosystems and their services (German website) The Economics of Ecosystems and Biodiversity
Natural_capital
Set of approaches to adapt to climate change
Ecosystem-based adaptation (EbA) encompasses a broad set of approaches to adapt to climate change. They all involve the management of ecosystems and their
Ecosystem-based_adaptation
Ecological engineering project in Algeria
for the region was probably forested during the last 3 000 years. Far from being questioned" - the colonial environmental narrative appears to be the
Algerian_Green_Dam
Farming approach
isothiocyanates. Relocating current croplands to environmentally more optimal locations, whilst allowing ecosystems in then-abandoned areas to regenerate could
Sustainable_agriculture
It is a long-term environmental monitoring project, comparable with other national programmes, such as the Swiss National Forest Inventory (NFI), the
Biodiversity Monitoring Switzerland
Biodiversity_Monitoring_Switzerland
FOREST RANGE-ENVIRONMENTAL-STUDY-ECOSYSTEMS
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FOREST RANGE-ENVIRONMENTAL-STUDY-ECOSYSTEMS
FOREST RANGE-ENVIRONMENTAL-STUDY-ECOSYSTEMS
FOREST RANGE-ENVIRONMENTAL-STUDY-ECOSYSTEMS
FOREST RANGE-ENVIRONMENTAL-STUDY-ECOSYSTEMS