相关实验视频
Updated: Jun 25, 2025
08:58
Colonization of Euprymna scolopes Squid by Vibrio fischeri
Published on: March 1, 2012
20.0K
概括
一种致命的病原体迅速从加勒比海蔓延到红海, 这种快速传播突显了全球传染病监测的迫切需要.
科学领域:
- 微生物学,流行病学和全球健康
背景情况:
- 一种新型,高毒的病原体已经出现,
- 最初的疫情集中在加勒比地区,构成严重的本地威胁.
相关概念视频
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Measures of species biodiversity, such as richness (i.e., the number of species present) and evenness (i.e., their relative abundance), describe an ecological community’s structure. Many factors affect community structure, including abiotic factors (e.g., sunlight and nutrients), disturbances (e.g., fire or flood), species interactions (e.g., predation or competition), and chance events (e.g., foreign species invasion). Certain species—such as keystone species—also play a...
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