Alberta Environment
Fragmentation decreases habitat effectiveness for many forest-dwelling species. Species requiring large tracts of undisturbed forest for food, cover and reproduction may be less successful in areas where this habitat type remains as patches only. On the other hand, other species of plants and animals will benefit from the large clearings and more forest edge.

Amphibia Web
Amphibians are found in a great variety of ecosystems from tropical rainforests to barren deserts. The general public often perceives amphibian habitat as being confined to wetlands and other aquatic environments, but surprisingly, a large number of species are entirely terrestrial. This diversity in habitat requirements between species and even between life-stages of the same species emphasizes that we can not take a simplistic approach to amphibian conservation.

Habitat fragmentation is a process of environmental change important in evolution and conservation biology. As the name implies, it describes the emergence of discontinuities (fragmentation) in an organism’s preferred environment (habitat). Habitat fragmentation can be caused by geological processes that slowly alter the layout of the physical environment or by human activity which can alter the environment on a much, much faster time scale. The former is suspected of being one of the major causes of speciation. The latter has been implicated in the extinction of many species.

Biodiversity Conservation Alliance
The mission of the Biodiversity Conservation Alliance is to protect and restore biological diversity, habitat for wildlife and fish, rare plants, and roadless lands in Wyoming and surrounding states. We started doing conservation work in 1988 to preserve the natural character of the Medicine Bow National Forest in southeastern Wyoming.

Botanical Gardens Conservation International
A workshop entitled Consequences of Habitat Fragmentation was hosted by the Centre for Plant Conservation at the Royal Botanic Gardens and Domain Trust in Sydney, Australia on the 4-5 July 2003. The intention of the meeting was to create a discussion forum for scientists and students researching the genetic and ecological consequences of habitat fragmentation.

Colorado’s Forest Legacy
Roads fragment habitat and bring pollution, noise, and noxious weeds, which together rapidly eat away at the territory left safe for sensitive and big game species alike; roads bring erosion and siltification, scarring sensitive landscapes and muddying clear mountain streams; roaded and heavily-logged forests are more susceptible to insect infestation, disease, and wildfires which can threaten communities.

Defenders of Wildlife
Defenders of Wildlife is dedicated to the protection of all native wild animals and plants in their natural communities. We focus our programs on what scientists consider two of the most serious environmental threats to the planet: the accelerating rate of extinction of species and the associated loss of biological diversity, and habitat alteration and destruction.

Ecosystem Restoration Laboratory
To effectively manage plant populations for conservation, there is a need to provide reliable information on the conditions required for maintaining viable populations. This is particularly true for rare taxa occurring in a fragmented landscape, such as that of south-west Western Australia.

Friends of the Forest
Many species of animals and plants need large, continuous areas of habitat to survive and don’t fair well when forests and rangeland are chopped into smaller and often isolated patches of developed and undeveloped land.

Institute of Ecosystem Studies
The conversion of forest into suburban developments and agricultural fields has resulted in the fragmentation of forested landscapes in eastern and central North America. The result is a series of landscapes in which a gradient of forest patches exists, from small woodlots (<1 hectare) to expanses of continuous forest.

Integrated Ecosystem Approach to Conserve Biodiversity and Minimize Habitat Fragmentation in the Russian Arctic
ECORA is a Global Environment Facility (GEF) – funded project that aims to sustain the biological and cultural diversity of the Russian Arctic. The project is currently in the second development phase (PDF-B).

Northern Prairie Wildlife Research Center
Habitat fragmentation exacerbates the problem of habitat loss for grassland and wetland birds. Remaining patches of grasslands and wetlands may be too small, too isolated, and too influenced by edge effects to maintain viable populations of some breeding birds. Knowledge of the effects of fragmentation on bird populations is critically important for decisions about reserve design, grassland and wetland management, and implementation of cropland set-aside programs that benefit wildlife.

Rappahannock League for Environmental Protection
Loss and fragmentation of habitat due to urban sprawl, rather than population increases, are the most significant factors in the decline of our native species, according to the Natural Resources Defense Council. Such fragmentation most often results from timber harvesting, development, and roads.

Southern Rockies Ecosystem Project
Founded in 1992, The Southern Rockies Ecosystem Project (SREP) is a non-profit conservation science organization working to protect, restore and connect ecosystems in the Southern Rockies of Colorado, Wyoming and New Mexico.

The Humane Society of the US
Human population growth and the consumption of open space and resources destroy habitat required by wildlife for survival. Human development can disturb whole ecosystems, often irreparably.

The Wilderness Society
Rarely has Washington been so out of step with the American people on environmental protection. There is pressure to turn the biological heart of the Arctic National Wildlife Refuge and some of our most stunning Rockies landscapes into oil fields. Undisturbed portions of our national forests, in 38 states, could be roaded and logged. Funding to protect our national parks and other natural treasures is in jeopardy.

Trees for Life
Habitat fragmentation is a major problem across the Earth. A decrease in the overall area of habitat is serious enough, but when combined with fragmentation, it can undermine the integrity of whole ecosystems. Roads, urbanisation and agriculture are among the main human activities which break up natural areas, often with disastrous implications for wildlife.

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