Disordered Translocation is Hastening Local Extinction of the Chinese Giant Salamander

来源 :亚洲两栖爬行动物研究(英文版) | 被引量 : 0次 | 上传用户:lipz7517
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Biodiversity is declining globally by an unprecedented extinction rate.This is especially true for amphibians,accounting for 24.3% of all threatened vertebrates.As the largest extant amphibian species in the world,wild populations of the Chinese giant salamander (Genus Andrias) (CGS) have decreased dramatically because of overexploitation and habitat degradation.Translocation has become an important strategy for restoring threatened wild populations worldwide.However,disordered translocation usually has negative effects on the native populations.We provide an overview of CGS translocation and show that disordered translocation can increase local population extinction.Nearly four times the estimated number of wild individuals have been released across China.There are three types of translocation used for CGS,namely,reinforcement,reintroduction and ecological replacement,the last of which accounts for over one-third of translocations.Our genetic screening revealed that most released individuals were not from local populations,with one to four lineages detected in every release site (n =6).This disordered translocation can potentially reduce the genetic integrity of original populations.Hence,we suggest suspending current CGS translocation activities immediately,until more robust measures can be developed and implemented to improve the current translocation program,especially with respect to lineage identification and the identification of appropriate release sites.
其他文献
太赫兹(Terahertz, THz)波通常是指频率在100 GHz–10 THz,相应波长在3 mm–30μm范围内,介于毫米波与红外光之间的电磁波. THz技术在物理学、材料科学、生命科学、天文学、信息科学以及国防安全等方面具有广泛的应用前景,被誉为改变未来世界的十大技术之一.《中国科学:物理学力学天文学》特别组织"太赫兹物理与应用专题",邀请了国内外活跃在THz物理和应用研究领域的科研工作者
期刊
“十四五”开局之前的中国经济形势,已经让资源型企业的优势一去不复返了,科创型企业的春天已经到来.今天,人们的消费观发生巨大变化,出现了品牌化高端消费、个性化消费,人们的生活日趋多样化,在企业追求国际化、营销运用信息化、产业需求资本化的大前提下,全球经济又出现“三个分化”大变局:区域分化、行业分化、企业分化.
期刊
Understanding how organisms adapt to the environment is a compelling question in modern evolutionary biology.Genetic assimilation provides an alternative hypothesis to explain adaptation,in which phenotypic plasticity is first triggered by environmental f
Main observation and conclusionrnAn efficient rhodium(Ⅱ)-catalyzed [4+3] cyclization reaction of 1-sulfonyl-1,2-3-triazoles and indoles was developed.Azepino[5,4,3-cd]indoles,which are widely distributed in ergot alkaloids with various biological activiti
As a close relative of ferroelectricity, antiferroelectricity has received a recent resurgence of interest driven by technological aspirations in energy-efficient applications, such as energy storage capacitors, solid-state cooling devices, explosive ener
Main observation and conclusionrnPhytochemical investigations on Tabernaemontana divaricata led to the isolation of seven undescribed monoterpenoid indole alka-loids,taberdicatines A-G (1-7).Taberdicatines A-C might be derived from Aspidosperma-type alkal
Transition-metal mediated activation of inert chemical bonds is an ongoing topic in homogeneous catalysis.In view of the abundance and accessibility of alkylarenes and benzylamines,the use of them as benzyl source in catalytic benzylation reac-tions via b
Main observation and conclusionrnA facile copper-based catalytic system has been developed to enable efficient cyclization of methylketoximes and alkynals.This pro-tocol provides a viable entry to synthetically and pharmaceutically useful 2-acylpyrroles w
Main observation and conclusionrnA visible-light-induced metal-free desulfurization method for thiols and disulfides has been explored.This radical desulfurization fea-tures mild conditions,robustness,and excellent functionality compatibility.It was succe
Based on Remote Sensing (RS) and Geographical Information System (GIS) technology,urban expansion of 75 cities in China from the 1970s to 2020 was reconstructed by visual-interpretation method,which d