Factors increasing extinction rates in giant panda populations

Genetics[ edit ] The objective of many captive populations is to hold similar levels of genetic diversity to what is found in wild populations. As captive populations are usually small and maintained in artificial environments, genetics factors such as adaptation, inbreeding and loss of diversity can be a major concern. Domestication Adaptation [ edit ] Adaptive differences between plant and animal populations arise due to variations in environmental pressures. In the case of captive breeding prior to reintroduction into the wild, it's possible for species to evolve to adapt to the captive environment, rather than their natural environment.

Factors increasing extinction rates in giant panda populations

The findings suggested whereas global changes in climate were the primary drivers in panda population fluctuation for millions of years, human activities were likely to underlie recent population divergence and serious decline.

This work reveals a good example for assessing and establishing the best conservation method for other endangered species. The latest study was published online in Nature Genetics.

Factors increasing extinction rates in giant panda populations

The giant panda is the rarest member of the bear family. Looked upon as the ambassador for all endangered species, it is a well-recognized symbol of international wildlife conservation. The giant panda is currently threatened by continued habitat loss, human persecution, among others. Its dietary specialization, habitat isolation, and reproductive constraints have led to a perception that this is a species at an "evolutionary dead end", destined for deterministic extinction in the modern world.

The giant panda is listed as endangered in the World Conservation Union's (IUCN's) Red List of Threatened Species. There are about 1, left in the wild. More than pandas live in zoos and breeding centers around the world, mostly in China. Female giant pandas ovulate only once a year, during spring, and are fertile for only three days per year. The short breeding season results in a low reproductive rate, which has not helped its endangered status any. Giant pandas reach sexual maturity between the ages of 4 and 8. Conservation benefits from understanding how adaptability and threat interact to determine a taxon’s vulnerability. Recognizing how interactions with humans have shaped taxa such as the critically endangered orangutan (Pongo spp.) offers insights into this relationship. Orangutans are viewed as icons of wild nature, and most efforts to prevent their extinction have focused on protecting.

In this study, researchers carried out whole genome resequencing of 34 wild giant pandas and found the current six geographic populations of giant panda could be divided into three genetic populations, including Qinling QINMinshan MIN and Qionglai-Daxiangling-Xiaoxiangling-Liangshan QXL.

The giant panda has a very special bamboo diet, while its ancestor was omnivorous or carnivores.

As early as about 3 Myr ago, they probably had already completed their dietary swift and pygmy panda emerged with bamboo as its primary diet. The warm and wet weather at that time provided ideal conditions for the spread of bamboo forests that further led to the first population expansion of giant panda.

During that period, pygmy panda was gradually replaced by another subspecies - baconi panda that has larger body size. However, during the period of last glacial maximum LGMthe climate was cold, dry, and inhospitable with frequent storms and a dust-laden atmosphere. Under such harsh environment, extensive panda habitats were loss and its second population bottleneck occurred.

The more recent panda population history showed that the panda population separated into Qinling QIN and non-QIN populations at about 0.

Factors Increasing Extinction Rates in Giant Panda Populations | Literature Essays

Subsequently, the three populations were different in the ways of fluctuation. They found the largest group of selected genes in these populations was related to sensory system.

As a form of olfactory communication, odor perception is crucial for reproduction and survival of giant pandas in the dense forest. They also found the evidence that population fluctuations were driven by global climate shifts, but recent human activities have likely caused population divergence and the serious recent decline.

The varied local adaptations found in our study provide invaluable resource for researchers to better select effective conservation methods to rescue the giant panda even other endangered species.

The translocation of wild-caught individuals or releasing the captive-bred ones may be a feasible approach.The major menace to giant coon bear communities which is increasing extinction rates is habitat loss.

Captive breeding is the process of maintaining plants or animals in controlled environments, such as wildlife reserves, zoos, botanic gardens, and other conservation facilities. It is sometimes employed to help species that are being threatened by human activities such as habitat loss, fragmentation, over hunting or fishing, pollution, predation, disease, and parasitism. Threats to Giant Panda Bears and Reasons of Decrease in the Wild Panda Population: Threats to giant panda bears, main reasons of decrease of wild panda population: poaching, habitat destruction and degradation, low reproductive rate, bamboo flowering etc. These reasons are complex and include factors such as poaching, habitat . State Forestry Administration surveys have concluded that the panda population has increased since the Chinese government’s actions, and in , the IUCN upgraded the giant panda’s status from Endangered to Vulnerable.

Habitat loss is due to human impacts in which the giant coon bear home grounds have been destroyed by logging, agribusiness and the development of hydropower amongst many other things (WWF, c). Collecting each species instead of each genus would increase the number of individuals three- to fourfold.

Factors increasing extinction rates in giant panda populations

The most speciose groups tend to be the smaller animals, though, so the total mass would be approximately doubled or tripled. Pollution, disease, and limited distribution are additional factors which threaten plants and animals with extinction.

A species without the natural genetic protection against a particular pathogen can be terminally affected by an introduced disease.

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Which of the following would most likely cause the greatest harm to wild Giant Panda populations in China? the success rates of giant panda captive breeding programs. Without human intervention to save a species from extinction, which one of the following organisms would be most likely to survive threats to its extinction?.

Threats to Giant Panda Bears and Reasons of Decrease in the Wild Panda Population: Threats to giant panda bears, main reasons of decrease of wild panda population: poaching, habitat destruction and degradation, low reproductive rate, bamboo flowering etc.

These reasons are complex and include factors such as poaching, habitat . Giant Panda Literature Kung Fu Panda () The Amazing Panda Adventure () The Smithsonian Book of Giant Pandas by: Susan Lumpkin Current Status.

Captive breeding - Wikipedia