"/>

国产精品99一区二区三_免费中文日韩_国产在线精品一区二区_日本成人手机在线

Rare Australian dolphin at risk of extinction: study
Source: Xinhua   2018-03-14 10:37:44

CANBERRA, March 14 (Xinhua) -- The rare Australian humpback dolphin needs urgent protection to be saved from extinction, an Australian study released on Wednesday said.

In the study, researchers from Flinders University discovered new information about the population genetics of the Sousa sahulensis, commonly known as the humpback dolphin.

The study concluded that the deaths of even a few mature individuals per year could be detrimental for the viability of humpback dolphin populations.

"Our results show that Australian humpback dolphin populations along the east coast of Queensland are characterized by low levels of genetic diversity, limited gene flow, and small effective population size," lead author Guido Parra said in a media release on Wednesday.

"Conservation efforts should focus on promoting connectivity among local populations and reducing direct causes of human related mortality."

Scientists studied the Australian humpback dolphin, which is endemic to northern Australia and southern New Guinea, for 17 years before coming to the conclusion that it was a separate species within the Sousa family.

They are considered vulnerable by the International Union for Conservation of Nature Red List of threatened species.

Due to the small population of the dolphin, Parra and a team of researchers spent 10 years collecting genetic samples.

Co-author Daniele Cagnazzi said the results should "raise important conservation concerns and emphasise the vulnerability of this species to random natural and human disturbances."

"Understanding the population genetics of threatened species is imperative for the development of appropriate conservation measures because some may be more vulnerable to natural and human disturbances than others depending on their genetic diversity and past demographic history," Cagnazzi said.

Editor: Lifang
Related News
Xinhuanet

Rare Australian dolphin at risk of extinction: study

Source: Xinhua 2018-03-14 10:37:44
[Editor: huaxia]

CANBERRA, March 14 (Xinhua) -- The rare Australian humpback dolphin needs urgent protection to be saved from extinction, an Australian study released on Wednesday said.

In the study, researchers from Flinders University discovered new information about the population genetics of the Sousa sahulensis, commonly known as the humpback dolphin.

The study concluded that the deaths of even a few mature individuals per year could be detrimental for the viability of humpback dolphin populations.

"Our results show that Australian humpback dolphin populations along the east coast of Queensland are characterized by low levels of genetic diversity, limited gene flow, and small effective population size," lead author Guido Parra said in a media release on Wednesday.

"Conservation efforts should focus on promoting connectivity among local populations and reducing direct causes of human related mortality."

Scientists studied the Australian humpback dolphin, which is endemic to northern Australia and southern New Guinea, for 17 years before coming to the conclusion that it was a separate species within the Sousa family.

They are considered vulnerable by the International Union for Conservation of Nature Red List of threatened species.

Due to the small population of the dolphin, Parra and a team of researchers spent 10 years collecting genetic samples.

Co-author Daniele Cagnazzi said the results should "raise important conservation concerns and emphasise the vulnerability of this species to random natural and human disturbances."

"Understanding the population genetics of threatened species is imperative for the development of appropriate conservation measures because some may be more vulnerable to natural and human disturbances than others depending on their genetic diversity and past demographic history," Cagnazzi said.

[Editor: huaxia]
010020070750000000000000011100001370380421
主站蜘蛛池模板: 花莲县| 浮梁县| 溧水县| 深泽县| 施甸县| 邳州市| 东乌| 宝应县| 丹巴县| 延津县| 札达县| 景谷| 武义县| 黎川县| 南丹县| 商洛市| 宁强县| 嘉兴市| 七台河市| 北海市| 湄潭县| 石嘴山市| 南昌市| 阿城市| 抚州市| 平乡县| 黎平县| 工布江达县| 宁强县| 恩平市| 星座| 宁波市| 阜康市| 青冈县| 泸西县| 唐海县| 庄河市| 同江市| 祁门县| 湖州市| 平阴县|