living habits and activity patterns to change. For example‚ traffic noise affects the communicating‚ living and breeding activity of birds. In 2011‚ an estimated 300 dead birds have been found on the side of the I-65 highway in Alabama; some large habitats which are low in reproductive rate and require specific biotopes are more sensitive to the highway construction and operation‚ such as Alabama red-bellied turtles‚ which are endangered species in Mobile Bay‚ Alabama. During the construction of highways
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reasons why lemurs are facing extinction; lemurs are being put at risk by deforestation‚ hunting‚ and climate change (Dunham et al.‚ 2008). Deforestation in Madagascar is especially significant in affecting lemurs. Deforestation leads to habitat loss and habitat fragmentation‚ which may have negative consequences for lemurs (Craul et al.‚ 2009). Lemurs are threatened by hunting because they are a food source for locals. There have been efforts by the government in Madagascar to combat the effects of hunting
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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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Bio 10 11 September 2015 Biodiversity Writing Assignment California Red- Legged Frog The California red- legged frog (Rana draytonii) was the threatened species and was found in the western United States. More than seventy percent of California red- legged frogs have been eliminated from their former extent. Nowadays‚ this breed is still popular in the Bay area but isn’t much like before (USFWS 2002). In nature‚ California red- legged frogs are 1.5 to 5 inches in length. Adult females
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the habitat‚ and the plants and animals that inhabit it. ------------------------------------------------- Habitat Fragmentation Habitat fragmentation carries long term environmental impacts‚ some of which can destroy entire ecosystems. An ecosystem is a distinct unit and includes all the living and non-living elements that reside within it. Plants and animals are obvious members‚ but it will also include other components on which they rely on such as streams‚ lakes‚ and soils. Habitats become
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human activity. Land development has pushed back forestry‚ which is making it almost impossible for tigers to survive in their range of natural habitat. Additionally‚ even though it’s illegal to own‚ hunt or trap tigers‚ poachers continue to trap and sell tiger parts on the black market. Furthermore‚ tigers are being separated by “population fragmentation” which prevents them from mating and producing healthy cubs. Although conservation centers are providing safe havens for tigers‚ they are not seeing
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all-time low of a 50% decrease over the past three generations. Asian elephants are constantly being threatened by the loss of their habitat‚ constant degradation and fragmentation going on. These elephants are not only a cultural icon in India and throughout Asia‚ but they also help maintain the integrity of their forests and help preserve their grassland habitats. Many people have a hard time understanding the difference between the Asian elephant and the more commonly known African Elephant.
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Causes of recent declines in biodiversity The major causes of biodiversity decline are land use changes‚ pollution‚ changes in atmospheric CO2 concentrations‚ changes in the nitrogen cycle and acid rain‚ climate alterations‚ and the introduction of exotic species‚ all coincident to human population growth. For rainforests‚ the primary factor is land conversion. Climate will probably change least in tropical regions‚ and nitrogen problems are not as important because growth in rainforests is usually
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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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time for speciation to occur and explaining why over half of the known species that walk‚ or grow on‚ the planet call it their home (Amazon). With that said‚ it is crucial to stop deforestation and anything else that threatens the remarkably ideal habitat for a plethora of plants and animals. Of that biodiversity‚ over 40‚000 different plants thrive in the Amazon and produce over twenty percent of the oxygen produced globally (15 Cool Facts). Without the Amazon and the oxygen levels produced by its
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