Desert Saguaro Cactus Scientific Name: Carnegiea gigantean Habitat: desert slopes and flats Range: Sonoran Desert Observations: The shape and appearance of the Saguaro Cactus is easily recognizable in countless movies set in the desert. The cactus is a producer‚ using photosynthesis to create its energy needs. Since it doesn’t have leaves‚ its photosynthesis takes place in the top layer of its green stem. The cactus uses a number of adaptations to survive in the dry desert conditions. They
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I. CAUSES OF THE DECLINE IN NUMBER OF CORBETT TIGERS IN VIETNAM 1. Massive Habitat and Prey Loss Many years ago‚ when there were still rain forests covering 43% of the area‚ tigers distributed on the highland and midland. In the 1960s‚ VN had thousands of tiger living in nature. The key findings from many years of study of tiger population have indicated that in many sites‚ tigers decline in numbers because of habitat loss and prey depletion rather than being killed directly. A tiger needs to
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background) IAN TATTERSALL: I think everybody who is involved with lemurs is concerned for the future. We’re in a finite island that cannot infinitely be exploited and ravaged. And if present trends continue‚ the outlook for any of the natural habitat or any of the lemurs is fairly poor. (Birds chirping) Lemurs are members of the order primates‚ that is to say the large group of mammals to which human beings also belong. And they’d found they are uniquely in Madagascar and on a couple of
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Wetlands assigned a code‚ e.g. L1UB1Hx Broadest classification describes the system level The term system refers here to a complex of wetlands and deepwater habitats that share the influence of similar hydrologic‚ geomorphologic‚ chemical‚ or biological factors. (First letter in code‚ e.g. L for Lacustrine) 5 systems of wetlands and deepwater habitats: Marine Estuarine Riverine Lacustrine Palustrine Some systems are divided into sub-systems Marine (Subtidal and Intertidal) Estuarine (Subtidal and Intertidal)
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The polar bear‚ also known as the white bear‚ northern bear‚ or sea bear‚ is a large bear native to the Arctic. It is one of the two largest land carnivore species and the top predator within its area. It is well adapted to its habitat: it has thick blubber and fur to insulate to it against the cold as well as white colored fur that camouflages it from its prey. The polar bear hunts well on land‚ on the sea ice‚ as well as in the water. The polar bear is a circumpolar species found in and around
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Seagrass Habitat Executive Summary The purpose of the report is to propose a research on the impact of coastal development to seagrass habitat. This project shows the processes and final results from the survey and research on library and internet that we have conducted. From the survey‚ we found that the impact of coastal development to seagrass habitat have become a serious problem that will face by human being. Meanwhile‚ the major problem they might face if loss of seagrass habitat is lack
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The species richness is when we talk about the actual number of species in a community. For example‚ if you go to a bottom ground forest you might see only sugar maple. Therefore‚ the species richness is only 1. Shannon Index measures species diversity too‚ but takes into account species evenness. Species evenness is when the relative abundance of the species in that community are more similar to each other. So by knowing that you have more similar species‚ this allows you to more accurately determine
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on public and private lands. These programs generally serve the purpose for conservation and restoration of wildlife habitats and ecosystems. They can range from the U.S. Forest Service‚ U.S. Fish and Wildlife Service‚ Bureau of Land Management‚ and National Park Service. The Coastal Program‚ administered by the U.S. Fish and Wildlife‚ strives to conserve and restore coast habitats and ecosystems. A coastal ecosystem is a region that includes estuaries‚ coastal waters‚ and adjacent land. Rivers and
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forwater. Although rivers and lakesmake up only 1% of the globe‘s land area‚ freshwater ecosystems host a disproportionally rich diversity of species. Some 40% of Natura 2000 sites contain freshwater habitats‚ and many more terrestrial habitats are waterdependent. Likewise‚ 70% of protected habitats and
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States? Factors that led to the premature extinction of the passenger pigeon are uncontrolled commercial hunting and habitat loss. Passenger pigeon in the 1858 became a big hunting business. Weapons like shotguns‚ traps and artilleries were used and even the burning of sulfur in suffocating the birds. These threats imposed by humans are increasing every year which degrades the habitat of these passenger pigeons which cause premature extinction. 2. Distinguish between background extinction and mass
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