相关实验视频

Updated: Jun 6, 2025

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
09:19

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging

Published on: April 18, 2025

354

社区的长期动态:是否有下降趋势?

Linas Balčiauskas1, Laima Balčiauskienė1

  • 1Nature Research Centre, Akademijos 2, 08412 Vilnius, Lithuania.

Life (Basel, Switzerland)
|November 27, 2024
PubMed
概括

自20世纪80年代以来,立陶宛的种群,特别是普通 (Sorex araneus),大幅下降. 在农业地区,松鼠的代表性不足,一些物种表现出了新的生态适应.

关键词:
立陶宛 立陶宛 立陶宛类动物 (Soricidae) 是一个类动物.息地 息地 息地昆虫捕食者 昆虫捕食者相对丰富的东西相对丰富.种类比例,物种比例.时间变化,时间变化.

更多相关视频

Helminth Collection and Identification from Wildlife09:37

Helminth Collection and Identification from Wildlife

Published on: December 14, 2013

15.5K
Resurrection of Dormant Daphnia magna: Protocol and Applications07:37

Resurrection of Dormant Daphnia magna: Protocol and Applications

Published on: January 19, 2018

18.3K

相关概念视频

Conservation of Declining Populations02:07

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.
9.6K
What are Populations and Communities?00:30

What are Populations and Communities?

Overview
33.8K
Conservation of Small Populations02:04

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...
13.1K
Habitat Fragmentation02:31

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.
17.4K
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...
22.1K
Life Histories01:29

Life Histories

Overview
17.8K