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Why are decisions about recovery and preservation of these creatures so complicated?
to understand the causes of population declines and extinction an experiment was conducted on the butterfly population in Finland. [ In this analysis, the butterflies’ endangered list classification, distribution, density, larval specificity, dispersal ability, adult habitat breadth, flight period and body size were all recorded and examined to determine the threatened state of each species. It
was found that the butterflies’ distribution has declined by fifty-one and a half percent, and they have a severely restricted habitat. One example of specific butterflies who have a declining distribution rate are the Frigga’s Fritillary and Grizzled Skipper, who have been affected by habitat loss due to extensive draining of the bogs where they live (Kotiaho et al., 2005, p. 1963-1967). This experiment proves that when we know the causes of endangerment, we can successfully create solutions for the management of biodiversity. ]
Expert answered|rodnix|Points 190|
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Asked 11/28/2012 10:41:03 PM
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List a specific age, content area, and 1 or 2 identified standards/ learning goals.
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Asked 11/25/2012 5:12:13 PM
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describe a bald eagle and the basic reasons for its endangerment.
Weegy: The Bald Eagle (Haliaeetus leucocephalus Greek hali = salt, aeetus = eagle, leuco = white, cephalis = head) is a bird of prey found in North America. A sea eagle, it has two known sub-species and forms a species pair with the White-tailed Eagle. [ Its range includes most of Canada and Alaska, all of the contiguous United States, and northern Mexico. It is found near large bodies of open water with an abundant food supply and old-growth trees for nesting. This time the "poison" killing the birds was DDT a "miracle bug killer" sprayed widely across the US. It first entered the food chain through insects and insect predators, and then was "washed" into the food chains of the fish in our lakes. It then began showing up as thin egg shells in fish predators and resulted in the endangerment of birds of prey, like the bald eagle, and as a Great Lakes Fish Advisary for humans today (females are recommended not to eat more than one meal of Great Lakes fish a month to prevent birth defects in future children). ] (More)
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Asked 11/26/2012 10:30:46 AM
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Describe a bald eagle
Weegy: The bald eagle (Haliaeetus leucocephalus), our national bird, is the only eagle unique to North America. The bald eagle's scientific name signifies a sea (halo) eagle (aeetos) with a white (leukos) head. [ At one time, the word "bald" meant "white," not hairless. Bald eagles are found throughout most of North America, from Alaska and Canada to northern Mexico. About half of the world's 70,000 bald eagles live in Alaska. Combined with British Columbia's population of about 20,000, the northwest coast of North America is by far their greatest stronghold for bald eagles. They flourish here in part because of the salmon. Dead or dying fish are an important food source for all bald eagles. ] User: describe the basic reasons for its endangerment. (More)
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Asked 11/26/2012 10:36:30 AM
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describe the reasons for bald eagle endangerment.
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Asked 11/26/2012 11:02:24 AM
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