相关实验视频

Updated: Jul 12, 2025

Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities

Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities

Published on: January 6, 2023

一个综合系统来评估海洋灭绝

Arturo Yáñez-Arenas¹, Miguel Nakamura², Andrew W Trites³

¹Instituto Politécnico Nacional, La Paz, BCS, México.

|October 26, 2023

概括

一个新的系统,ISAME,更有效地评估海洋灭绝. 它将物种分类为未经验证的,可能已经灭绝的或已经灭绝的,有助于对海洋生物多样性的保护工作.

科学领域:

海洋生物学海洋生物学
保护科学保护科学
灭绝科学灭绝科学

背景情况:

在过去的500年里,报告了20多起全球和700起本地海洋灭绝事件.
现有的验证灭绝的方法往往是数据密集型,耗时,范围有限的.
需要一个强大的系统来准确评估各种规模的海洋物种灭绝状况.

研究的目的:

开发和应用一个评估海洋灭绝的综合系统 (ISAME).
提供适用于任何分类群和地理规模 (全球和本地) 的多功能方法.
准确地对海洋物种的灭绝状况进行分类,以便制定明智的保护战略.

主要方法:

开发评估海洋物种灭绝的综合系统 (ISAME).
在10个不同的海洋灭绝案例研究中应用ISAME.
基于证据,将物种分为"未经验证"",可能已经灭绝"或"已经灭绝"的类别.

主要成果:

由于证据不足或分类问题,ISAME将10种研究物种中的6种归类为未经验证的灭绝物种.
两种物种,瓜达卢佩风暴和丢失的鱼,被列为可能已经灭绝的物种.
两种物种,大牙鱼和斯泰勒海牛,已被证实是灭绝的.

结论:

伊萨姆系统为评估海洋灭绝提供了一种可扩展和适应的方法.
准确的灭绝状态确定对于有效的海洋保护和防止生物多样性丧失至关重要.
该研究强调,在宣布物种灭绝时,需要严格的证据.

更多相关视频

Assessing Intertidal Populations of the Invasive European Green Crab

Assessing Intertidal Populations of the Invasive European Green Crab

Published on: September 16, 2020

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Published on: May 18, 2019

相关概念视频

The Fossil Record

The Fossil Record

The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...

Conservation of Declining Populations

Conservation of Declining Populations

Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.

Habitat Fragmentation

Habitat Fragmentation

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.

What is Evolutionary History?

What is Evolutionary History?

Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.

Speciation Rates

Speciation Rates

Threats to Biodiversity

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...