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Updated: May 7, 2026

A Video Surveillance System to Monitor Breeding Colonies of Common Terns (Sterna Hirundo)
07:39

A Video Surveillance System to Monitor Breeding Colonies of Common Terns (Sterna Hirundo)

Published on: July 22, 2018

絶滅危惧種:ヒョウガメが漁業と出会う場所

Sandra Ferraroli1, Jean-Yves Georges, Philippe Gaspar

  • 1Centre d'Ecologie et Physiologie Energétiques, Centre National de la Recherche Scientifique, CEPE-CNRS UPR 9010, 67087 Strasbourg, France.

Nature
|June 4, 2004
PubMed
まとめ

レザーバックカメの個体数は,漁業の相互作用により減少しています. 太平洋とは異なり,北大西洋のカメは広範囲に広がり,廊下制限ではなく,高リスクの"ホットスポット"での有望な保全を必要とします.

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

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At-Risk Butterfly Captive Propagation Programs to Enhance Life History Knowledge and Effective Ex Situ Conservation Techniques07:10

At-Risk Butterfly Captive Propagation Programs to Enhance Life History Knowledge and Effective Ex Situ Conservation Techniques

Published on: February 11, 2020

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Threats to Biodiversity01:50

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...
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Keystone Species

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Conservation of Small Populations

Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less likely to...
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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.
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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.
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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.