A major impediment to recovering declining populations successfully is the mortality of reintroduced or trans-located animals. It is of the general assumption that captive-born animals might lose their anti-predator behaviour abilities in captivity, but studies rarely compare predator recognition abilities of captive-born and wild-captured animals to test this. Predators often kill reintroduced and trans-located animals, and this mortality is often a considerable hindrance for successful population recovery. Some is this mortality may be expected because individuals vary in how they respond to predators and this variation may have fitness consequences. The predator recognition abilities might also be lost or modified when animals are; brought into or born into captivity because animals may be unsuccessful in developing appropriate recognition skills or lose these skills within a generation or over evolutionary time. Regardless of specific predator discrimination abilities, for some species overall “personality” may be associated with response to predators and following survival, and the differences in personality might influence how animals respond, and fare, when they encounter predators. A reduction in mortality of re-introduced animals can be achieved in three different ways. Firstly predator control, secondly by keeping predators away by shepherding the re-introduced animals and thirdly by identifying behavioural patterns that pre-dispose individuals to predation and then not release these individuals or try to modify their behaviour before releasing.
This study concentrates about the third method and the critically endangered Vancouver Island marmot (Marmota vancouverensis) which is endemic to Vancouver Island and has dwindl...
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...ker response to the wolf, it is not explained why it is this way, but it might have to do with the way marmots react to different predators as many animals got predator specific strategies.
It can be concluded that the study does not show any significant results which can be directly used in conversation biology, the results do not come with an answer on whether the captive-born got the needed anti-predator abilities or not. The MIS results did not show any conclusive results either, but did show an indication of personality, and how the difference in personality traits of the animals might give them an edge compared to other animals when confronted with a predator.
Works Cited
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Orcas in captivity have shown more aggression then they ever have in the wild. In fact “There has not been any orca attacks recorded in the wild but many in captivity” (pg1). There are over one hundred and fifteen reported cases of orcas attacking trainers in captivity. No matter the experience of the trainer or connectio...
So where is the middle ground in animals use in psychological research? In summary of all the information mentioned in this paper we are, in a way already at the middle ground. Since the majority of psychological research is conducted for comparative psychological gain, then it is in the best interest of animals to be used in the research. How can the use of animals in research are considered truly cruel to animals if it is in that species best interest. Along with the strict regulations out in place by the APA and the IACUC, I believe that the Rogerian style middle ground is achieved. I fully support the study of animals in psychology.
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Both the snow leopard and the green turtle are classified as endangered under the IUCN red list with decreasing population trends. Both live in very different habita...
The loss of habitat over time for the Florida panther has caused problems with dispersal and inbreeding within smaller populations. Inbreeding within these smaller patches of land, has resulted in congenital birth defects such as heart conditions and abnormal tails resulting in shorter life spans and high infant mortality within the panther populations (Facemire et al. 1993). In an effort to ameliorate inbreeding, a subspecies of puma from Australia (P. c. stanleyana) was introduced into South FL and has increased current panther counts from 60 in the 1990s to 130 individuals in 2001 (Johnson et al. 2010). In addition to inbreeding, panthers also suffer from exposure to environmental contaminants from agriculture and/or from consuming wildlife (raccoons) containing mercury and androgen crippling chemi...
The project at Yellowstone was met with some apprehension. Biologists there feared that without the fear of predation during the past few generations, the resident moose at Yellowstone would not fear the wol...
Over a century ago, humans fought animals for dominance of the landscape and we regrettably won, now they’re in need of our protection. The Government and Organizations have come to the rescue of wildlife species all across the U.S. Their main goal is to protect wildlife species from over harvesting and also their loss of habitat due to industrial and residential development. The beauty and curiosity of wildlife captivates all of us for different reasons. For certain species, they are the link to our existence Animals are not being hunted into extinction because the government is protecting certain wildlife areas and are controlling the animal populations within those certain areas. While increasing a wildlife species population and removing from the endangered species list, a predator such as the gray wolf, is sure to be seen as a success to some and a threat to others.
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Before current knowledge of mountain lion activity had been researched, it was commonly believed that mountain lions were ferocious killers which crept down from the mountains to indulge in midnight feasts on livestock and pets. Of course, the worst harbored fear was the possibility of losing children, family and friends to these wild predators. Besides the past 25 years, little concern was given to the condition of mountain lion populations in California and much of the western United States. Between 1916 and 1971, more than 12,000 mountain lions were killed for bounties and for sport in California (California Wildlife Protection Coalition, 1995).
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