相关实验视频

Updated: Jun 14, 2025

Resurrection of Dormant Daphnia magna: Protocol and Applications

Resurrection of Dormant Daphnia magna: Protocol and Applications

Published on: January 19, 2018

进化上不同的物种受到国际贸易的威胁

Dominic Meeks¹, Oscar Morton², David P Edwards¹

¹Department of Plant Sciences and Conservation Research Institute, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK; Conservation Research Institute, University of Cambridge, Cambridge, UK.

Current biology : CB

|June 3, 2025

概括

全球野生动物贸易对数千种物种产生影响,冒着进化历史丧失的风险. 危野生动植物物种国际贸易公约 (CITES) 的贸易数据显示,一些进化上不同的物种不受保护,处于威胁之中.

科学领域:

保护生物学保护生物学
生态生态学生态生态学
进化生物学进化生物学
国际贸易政策国际贸易政策

背景情况:

全球野生动物贸易涉及许多物种,可能侵蚀生态系统的进化历史和弹性.
了解植物遗传多样性和进化特征在国际贸易中的作用对于保护至关重要.
危野生动植物物种国际贸易公约 (CITES) 规范了危物种贸易.

研究的目的:

评估陆地脊椎动物的遗传多样性和进化特征如何在CITES贸易中得到利用和保护.
为了确定植物遗传多样性的贸易热点,并检查进化特征和贸易模式之间的关系.
确定贸易威胁,进化上不同的物种缺乏CITES保护.

主要方法:

分析了CITES对陆地脊椎动物 (鸟类,哺乳动物,状动物,两动物) 的贸易数据.
绘制出口和进口来自野生和被捕来源的遗传多样性的热点地图.
量化了物种的进化特征与它们的贸易概率/交易量之间的关系.
识别出具有高进化特异性价值的未受保护物种.

主要成果:

野生来源的植物遗传多样性出口热点位于南非; 养殖热点位于欧洲和北美.
植物遗传多样性的进口热点遍布亚洲,欧洲和北美.
进化上不同的野生来源的哺乳动物更频繁地交易,但这种模式对于大多数种类或贸易量来说并不重要.
在CITES中列出的物种在进化上并不比未列出的物种更明显.
尽管受到国际贸易的威胁,但13种高度进化独特的物种缺乏CITES清单.

结论:

国际野生动物贸易,特别是涉及到野生来源的哺乳动物,可以不成比例地影响进化上不同的物种.
目前的CITES清单没有充分保护进化上最独特的物种.
对于贸易威胁的,进化上不同的物种,迫切需要制定有针对性的贸易管理战略,以防止进化历史的不可逆转损失.

关键词:

在"CITES"中,进化上的独特性进化上的独特性遗传学多样性遗传学多样性可持续的贸易可持续的贸易野生动物贸易贸易

更多相关视频

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Visually Sexing Loggerhead Shrike Lanius Ludovicianus Using Plumage Coloration and Pattern

Published on: March 8, 2020

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

相关概念视频

The Evidence for Evolution

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.

Speciation Rates

Speciation Rates

Gene Flow

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.

Genetics of Speciation

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.

Limits to Natural Selection

Limits to Natural Selection

Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.

Convergent Evolution

Convergent Evolution

Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.