|
| |
| | Habitat Loss and Disturbance |
 | | Loss of riparian forests is also harmful because these areas serve as filters that remove sediment, nutrients and some chemical contaminants from surface runoff and groundwater before they reach the bays. | | | Loss of sea grass beds not only deprives marine species of habitat and food sources, but also exacerbates sediment resuspension problems and increases shoreline erosion from wave action. |
|
http://www.mdcoastalbays.org/education/habitat_and_loss.html
|
|
| |
| | Habitat Loss |
| | Habitat loss or change in habitat for corals can result from excess shade, increased levels of ultraviolet radiation, sedimentation, pollution, salinity changes, and increased temperatures. | | | Habitat loss alters or eliminates the conditions needed for plants and animals to survive. |
|
http://www.conservationinstitute.org/habitatloss.htm
|
|
| |
| | EPA-MAIA - Habitat Loss |
| | Habitat loss is caused by natural disasters (hurricanes, fires, flooding, etc) and human activity (clearing land for agricultural, industrial, and residential development; clear-cut harvesting of timber; oil spills; and war). | | | Habitat is defined as the place or environment where a plant or animal naturally or normally grows and lives. | | | These habitats are influenced by climate, soils, water, plant and animal interactiojns, and human activities. |
|
http://www.epa.gov/emfjulte/tpmcmaia/html/habitat.html
|
|
| |
| | BBC - Science & Nature - State of the Planet - Habitat loss |
| | Large animals are often hit hardest by loss of habitat because they need large areas in which to have a healthy breeding population. | | | We are taking over habitat at an alarming rate to provide ourselves with homes and agriculture as well as resources from forests, and other natural areas. | | | Although forests can recover, and even be harvested sustainably, the rate of loss is 10 times higher than the rate of regrowth. |
|
http://www.bbc.co.uk/nature/programmes/tv/state_planet/habitat.shtml
|
|
| |
| | Sierra Club - Habitat Report - Causes of Habitat Loss |
| | These practices have resulted in the reduction of habitat diversity (e.g., a decline in the amount of undisturbed grass-dominated cover), acceleration of soil erosion, increase in water pollution from agricultural runoff and creation of a greater dependence on fertilizers and pesticides. | | | While agribusiness development tops the list of activities responsible for habitat destruction for endangered plants and animals, a review of recovery plans for endangered and threatened plants identified urban development as the greatest threat to the plants' continued survival. | | | The damage caused by corporate farming comes from the conversion of small family farms into large industry farms, the shift to planting only one crop, wetland drainage and the elimination of the practice of allowing fields to lie fallow between plantings. |
|
http://www.sierraclub.org/wildlife/species/habitat_report/habitatloss.asp
|
|
| |
| | environ - for people, the environment and the future |
| | Even the clearing of too much dead wood can affect the ecology of a woodland, removing habitat for the grubs and beetles that fuel the food chain. | | | We drain wet lands for agriculture, grub up hedgerows to make fields bigger, plough up ancient meadows to grow cereals and fell forests for fuel and timber. | | | The great European forest, which once spread from the west coast of Ireland to Siberia, has all but vanished, and the rain forests of Africa and South America are disappearing at an alarming rate. |
|
http://www.environ.org.uk/issues/nature/habitat_loss/index.php?cid=112
|
|
| |
| | Unit III - Habitat Loss |
| | Habitat loss and fragmentation disrupt the delicate balance between plant and animal species and can lead to problems such as species displacement, inbreeding, disease, increased | | | Population size is also reduced in a smaller habitat area, which increases the likelihood of genetic problems in the future. | | | For example, when a community population is growing rapidly and haphazardly, boundary expansion ensues, causing habitat loss due to new roads, homes and businesses. |
|
http://www.uwsp.edu/cnr/wcee/biodiversity/sbiodiversity/unit3/hippo.htm
|
|
| |
| | Effects: Habitat Degradation, Loss, and Fragmentation |
| | Habitat loss is the outright destruction of habitat, such as filling a wetland or channelizing a section of stream. | | | Aquatic and terrestrial habitats are increasingly degraded and lost as greater percentages of watershed areas are made impervious. |
|
http://chesapeake.towson.edu/landscape/impervious/habitat.asp
|
|
| |
| | Tropical Habitat Loss Threatens Mass Extinction Akin To Fall Of The Dinosaurs |
| | While that sounds grim, it also means that the actual extinction impact of tropical habitat loss thus far has been relatively minor. | | | Humanity's destruction of tropical habitat for agriculture, logging and other development has inflated earth's normal background extinction rate by as much as 1,000 times, said Stuart Pimm, a senior research scientist at Columbia's Center for Environmental Research and Conservation. | | | At this pace, the tropical forests will be gone well before the end of the century, along with over half of all earth's species. |
|
http://www.columbia.edu/cu/pr/00/03/extinction.html
|
|
| |
| | Habitat loss |
| | Dead wood, trees and logs are often cleared to 'tidy up' the landscape, but they provide vital habitat for many plants and animals. | | | Natural habitats have been destroyed, fragmented and modified, resulting in widespread changes to the distribution and abundance of native plants and animals. | | | Many species of butterfly rely on hilltops for mating, but these sites are often used for housing, communications and other purposes. |
|
http://www.nationalparks.nsw.gov.au/npws.nsf/Content/Habitat+loss2
|
|
| |
| | The Bird Site: Ancient Birds |
| | Over half of the original wetlands in the United States are gone - drained for agriculture or urban development. | | | Select this text to learn more about different habitats and the kinds of plants that grow there. | | | Strategies for preservation and replenishment include replanting the trees, allowing the land to rest between crops, selective timber cutting, increased scientific monitoring and research, and something we all can do to help - reduce, reuse, and recycle! |
|
http://www.lam.mus.ca.us/birds/guide/pg023.html
|
|
| |
| | Habitat Loss |
| | A "wetland" is a habitat where surface and/or groundwater has resulted in the development of plant or animal communities adapted to aquatic or intermittently wet conditions. | | | As a result of this growth and development, coastal habitats, such as forested wetlands, marshes, oyster reefs, and seagrass beds are disappearing at an astounding rate. |
|
http://www.mobilebaynep.com/habitatloss.htm
|
|
| |
| | BAGHEERA: In The Wild : Classroom : Classroom Studies |
| | Patches of forest or grassland surrounded by farms or cities, or divided by roads, will not support these species. | | | Many species, particularly large mammals, need large areas of habitat to survive and reproduce. |
|
http://www.bagheera.com/inthewild/classroom/class_extinction_habitat.htm
|
|
| |
| | Near Total Ape-Habitat Loss Foreseen By 2030 |
| | If infrastructure growth continues at current levels, the area left by 2030 is estimated to be 424 square kilometers (164 square miles) or less than one percent. | | | If infrastructure growth continues at current levels, the area left by 2030 is estimated to be 118,618 square kilometers (46,000 square miles) or just 8 percent. | | | If infrastructure growth continues at current levels, the area left by 2030 is estimated to be 69,900 square kilometers (27,000 square miles) or just 10 percent. |
|
http://news.nationalgeographic.com/news/2002/09/0903_020903_apes.html
|
|
| |
| | Nat'l Academies Press, Upstream: (1996), 7 Habitat Loss |
| | Habitat changes caused by human activities have occurred at far different spatial and temporal scales than natural disturbances in the Pacific Northwest. | | | Because habitat loss is widely acknowledged to have contributed to the decline of virtually every species of Pacific salmon in western North America | | | Temperature increases whether caused by riparian canopy removal, water impoundment, agricultural and urban runoff, or heated industrial discharges-create conditions favorable to many warm-water game species and might enable them to gain a competitive advantage or facilitate their predation on juvenile salmon. |
|
http://books.nap.edu/books/0309053250/html/164.html
|
|
| |
| | Endangered Ecosystems of the United States |
| | Habitats of all types--aquatic, wetlands, and uplands--have suffered more severe declines in coastal regions and in the vicinity of major rivers because these areas have been more intensively settled by people than other areas. | | | Losses of all kinds of ecosystems have been most pronounced in the South, Northeast, and Midwest, and in California. | | | Loss of gopher tortoises ( Gopherus polyphemus) in the southeastern coastal plain--in part from poaching, but mostly from habitat destruction--may cause the decline or extirpation of dozens of species. |
|
http://biology.usgs.gov/pubs/ecosys.htm
|
|
| |
| | ANEP: Publications - Habitat Loss Technology Transfer |
| | The Long Island Sound Study has developed a list of 400 coastal wetland sites for tracking purposes, including different habitat types and has conducted surveys of benthic habitat for different wetland types (including measures of diversity and presence/absence surveys). | | | Estuarine habitat types include physically-defined examples such as submerged (seagrass and eelgrass, kelp and other attached macroalgae, soft bottom, hard bottom such as coral reefs or oyster bars), intertidal (rocky coasts, mudflats and sandbars) and emergent (marshes and mangroves). |
|
http://www.anep-usa.org/publications/habitat_loss.htm
|
|
| |
| | CSG Major Issues: Habitat Loss and Fragmentation |
| | However, this increase in grass- and shrubland has largely been brought about by deforestation, and intensive human modification is implicit. | | | Moreover, as pointed out above, cats which are associated with tropical forest tend to be strongly associated (this tendency is much stronger for rainforest than tropical dry forest), so that tropical forest constitutes major portions of these species' ranges. | | | For example, in 1990 production was close to 120 million cubic meters, while Africa and Latin America each produced only around 20 million cubic meters (FAO 1993). |
|
http://lynx.uio.no/catfolk/mjissues/mjchp_1d.htm
|
|
| |
| | Sierra Club - Species and Habitat Home Page |
| | The ongoing loss of habitat to development, suburban sprawl, population pressure, unsustainable logging and other activities are leading to declines in species on which we depend for everything from food to medicinal drugs to recreation. | | | Sierra Club - Species and Habitat Home Page |
|
http://www.sierraclub.org/habitat
|
|
| |
| | OVER THE YEARS LAND BASED PRACTICES HAVE CAUSED MAJOR MARINE HABITAT LOSS IN |
| | Turbidity and these nutrient rich sediments have led to the total loss of seagrass in Bramble Bay, more recently in the Caboolture River, and now Deception Bay is in the balance. | | | * That the precautionary principle be adhered to, particularly if there is doubt regarding environmental issues relating to proposed developments on sensitive wetland areas adjacent to fishing habitats. | | | The droppings of some 20,000 birds, lead to a naturally higher concentration of phosphorus on exposed seagrass feeding banks. |
|
http://www.rag.org.au/sunfish/central/oct98news/plumicestone.htm
|
|
| |
| | Florida PantherNet - Official Education Site |
| | Roads, urban and suburban development, and agriculture decrease the amount of habitat available to panthers, fragment expanses of forested habitat preferred by panthers, and disrupt dispersal of young panthers. | | | Panthers can tolerate a certain degree of development as long as corridors connecting large blocks of natural areas remain. | | | Roads also open up areas to human development and activities that may further contribute to habitat loss and to disruption of panthers' normal behavior. |
|
http://www.panther.state.fl.us/handbook/threats/fragmentation.html
|
|
| |
| | Total loss of habitat - |
| | A study off the east coast of Florida showed that when 5 hectares of hardbottom habitat were covered this lowered the numbers of individuals and numbers of species species by 30 times and 10 times, respectively. | | | As can mining for heavy minerals, including titanium and chromite and even precious minerals including gold and platinum, and phosphorites, which are used extensively in agriculture and pharmaceuticals. | | | This has repercussions for fish, particularly in early life stages, and invertebrates that settle on these shelf areas that are covered by beach extension. |
|
http://www.oceansatlas.org/id/18093
|
|
| |
| | CSG Major Issues: Habitat Loss and Fragmentation [2] |
| | The other major wild habitat type (20% of total wilderness) consists of the sand and semi-deserts of Asia and North Africa. | | | Only two species, both lynxes, occur in these areas, and then only partially, with the northern limit of their ranges around the 65o N latitude. | | | In general, loss of habitat produces a decline in species total population size, and fragmentation of habitat can isolate small sub-populations from each other. |
|
http://lynx.uio.no/catfolk/mjissues/mjchp_1e.htm
|
|
| |
| | Native Vegetation Clearance, Habitat Loss and Biodiversity Decline - Queensland |
| | Within Area B, the mainland strip covers 1413 square kilometres and estimated losses for different vegetation types are summarised in Table 5. | | | Many native grassland ecosystems have also been significantly modified. | | | It was also found that, historically, clearance was selective throughout the study area and some vegetation communities whose land resources had a greater potential for increased production were favoured for clearing. |
|
http://www.ea.gov.au/biodiversity/publications/series/paper6/bioqld.html
|
|
| |
| | EPA > Water > Wetlands, Oceans, & Watersheds > Oceans, Coasts, and Estuaries > Habitat Protection > Performance ... |
| | Commercial, industrial, and residential development; highway construction; marina development; and diking, dredging, filling, and bulkheading all decrease natural areas. | | | These natural areas provide essential food, cover, migratory corridors, and breeding/nursery areas for many coastal and marine organisms. | | | Each of these activities can also threaten remaining habitat by causing increased runoff of sediment, nutrient, and chemical pollutants to these areas. |
|
http://www.epa.gov/owow/estuaries/pivot/habitat/problem.htm
|
|
| |
| | Canada Encyclopedia Online > Travel & Hotel Guide > Weather > Hotels > Map |
| | Polar bears are currently threatened, not mainly by hunting, but by habitat loss caused by global warming ; for example, the area of ice covering Hudson Bay in Northern Canada in winter is shrinking, limiting their access to seal prey. | | | The sensitivity of the survival rates of the bears to global temperature is attested to by the population bulge in the cohort of bears born during the transient cooling that followed the erruption of Mount Pinatubo in 1991 | | | The hair is not actually pigmented white; it is unpigmented and hollow, like white hair in humans |
|
http://canada.asinah.net/
|
|
| |
| | Tropical American Tree Farms - growing precious tropical hardwoods for you! |
| | You may want to review the Projections for growing and harvesting teak trees. | | | We are motivated by much more than just profit and we encourage you to go to our Conservation page for more images and information about protecting tropical habitat. | | | We strongly believe that with good values, care for the environment and desire for profit can go hand-in-hand. |
|
http://tropicaltreefarms.com
|
|
| |
| | Native Vegetation Clearance, Habitat Loss and Biodiversity Decline - Contents |
| | For example, in the Murray Darling Basin, a study of dryland salinity concluded that 'changed land use, particularly broadscale clearing of native vegetation and its replacement with systems which use less water, is the principal cause of secondary dryland salinity'. | | | The gradual degradation of habitat by the removal of the understorey of forest and woodland remnants, through grazing for example, is also significant since it can lead to the loss of species and genetic variability. | | | The result is that many species are now in decline. |
|
http://www.deh.gov.au/biodiversity/publications/series/paper6/index.html
|
|
| |
| | Australian Wildlife Feature Story - Little Penguin Eudyptula minor |
| | number of breeding colonies has reduced from ten to one resulting in a reduction in numbers since the turn of the century largely due to habitat loss | | | survival of parents is not affected by this loss of body mass |
|
http://www.australianwildlife.com.au/features/penguin.htm
|
|
| |
| | Urbanization VS Habitat Loss |
| | Incorporate our developments around wetlands so as not to disturb the delicate ecosystem. | | | Every year during the 1990Â’s approximately 90,000 acres of undeveloped land become homesites. | | | The author shows that some of the animals are acclimating themselves to live in the urban areas but humans are showing a negative reaction to the encounters. |
|
http://landru.i-link-2.net/rvanderlip/habitat_loss.html
|
|
| |
| | Habitat Loss / Preservation Home Page |
| | We are very concerned about the loss of animal habitat. | | | We created this website during the 2002 -2003 school year when we were in the fifth grade. | | | We wanted to share this informatoion with other people so we created this website. |
|
http://www.howard.k12.md.us/res/habitat
|
|
| |
| | Information on Striped Hyenas |
| | Some of their body parts are also believed to have medicinal value. | | | Striped hyenas have also become endangered through habitat loss. | | | Striped hyenas inhabit open country, as well as the forests of India and the seashore, scavenging on dead animals which wash up from the sea. |
|
http://www.stripedhyena.com/shyena/info.html
|
|
| |
| | Habitat Loss |
| | Habitat loss is a direct result of our increasing demands upon the land, its resources and human intolerance of bears. | | | The greatest cause of declining brown bear population is loss of habitat. | | | The brown bear is California's state symbol, yet brown bears have not roamed freely here since the early 1920's at which time the last known wild brown bear was killed. |
|
http://www.brownbears.org/katmai.html
|
|
| |
| | Habitat Loss and Fragmentation |
| | Scientific evidence shows that no park ecosystem can remain healthy as an isolated refuge in a sea of development, yet parks—even large ones—are becoming surrounded. | | | Fragmentation can expose the interiors of remaining habitat to edge effect, which benefits some species but harms many others. | | | Development fragments habitat, creating barriers to wildlife movement and complicating ecosystem management at the regional and landscape levels. |
|
http://www.npca.org/wildlife_protection/biodiversity/report/threats/fragmentation.asp
|
|
| |
| | Asiatic Black Bears - Pictures, Breeders, Asiatic Black Bear Babies |
| | There are eight species of bears in the world: Malayan sun bear, Asiatic black bear, spectacled bear, American black bear, giant panda, sloth bear, etc. Their description. | | | Bagheera - Information about killing and dramatic habitat loss worldwide. | | | Asiatic Black Bears in Wild - Information about the animals, the TSCWA organization that is a non-governmental organization that preserves and protects natural habitats in Thailand. |
|
http://www.asiatic-black-bears.com/asiatic-black-bears-links.htm
|
|
| |
| | Exploring Estuaries - Habitat Loss and Change |
| | In addition, these habitats also filter out pollution from the water and protect the surrounding region from flooding. | | | However, as we build more homes and businesses surrounding estuaries and pave new roads we are destroying precious habitats and threatening the health of entire estuaries. | | | habitats, or “homes,” for countless fish and other wildlife. |
|
http://www.epa.gov/nep/kids/about/habitat.htm
|
|
| |
| | Conserving Earth's Biodiversity: Threats to Biodiversity: Habitat Loss: Forest Loss in the U.S. |
| | Conserving Earth's Biodiversity: Threats to Biodiversity: Habitat Loss: Forest Loss in the U.S. Introduction | | | Threats to Biodiversity: Habitat Loss: Forest Loss in the U.S. Land Use History of North America | | | A book produced by the US Geological Survey (available online) describing many facets of changing land use patterns in North America. |
|
http://www.islandpress.org/ceb/threats/habitat_loss/us_forests/index.ssi
|
|
| |
| | The Loss of Habitat in Puget Sound: Table of Contents |
| | Special assistance was provided by Patty Asher for shoreline armoring issues, and by Matt Brown and John Jorgensen for loss of river delta habitat. | | | The Loss of Habitat in Puget Sound: Table of Contents |
|
http://www.pugetsound.org/habitat/reportfolder
|
|
| |
| | Habitat Destruction, Wildlife, and Biodiversity Issues |
| | Non-sustainable practices and pollution are robbing our ecosystem of precious natural resources and causing an unprecedented amount of habitat loss. | | | Educational site offers a wealth of information on habitat destruction and species loss. | | | Wild Markets: International Trade in Wildlife is on the Rise |
|
http://environment.about.com/cs/sustainability
|
|
| |
| | PLANETIZEN: News > Details |
| | Audubon Society finds population of many bird species have declined significantly due to habitat loss. | | | Full story: Study blames habitat loss for bird decline | | | Get Planetizen on your handheld and by email. |
|
http://www.planetizen.com/news/item.php?id=14709
|
|
| |
| | Volcanism, habitat loss & aste |
| | Volcanism, habitat loss & asteroid impact - Stressing out the dinosaurs | | | To forward this story, fill in the form below: |
|
http://www.exn.ca/html/templates/emailstory.cfm?id=20000331-69
|
|
| |
| | Energy Citations Database (ECD) Document #6071201 - Assessing the loss of wildlife habitat in environmental impact ... |
| | 510100 -- Environment, Terrestrial-- Basic Studies-- (-1989) ;530300 -- Environmental-Social Aspects of Energy Technologies-- Environmental Impact Statements-- (-1987); ENVIRONMENTAL IMPACT STATEMENTS-- EVALUATION;WILD ANIMALS-- HABITAT; LOSSES;NATIONAL ENVIRONMENTAL POLICY ACT | | | Assessing the loss of wildlife habitat in environmental impact statements | | | Energy Citations Database (ECD) Document #6071201 - Assessing the loss of wildlife habitat in environmental impact statements |
|
http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=6071201
|
|
|
