Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12872 |
Rarity and persistence | |
Vermeij, Geerat J.1; Grosberg, Richard K.2 | |
2018 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2018 |
卷号 | 21期号:1页码:3-8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Rarity is a population characteristic that is usually associated with a high risk of extinction. We argue here, however, that chronically rare species (those with low population densities over many generations across their entire ranges) may have individual-level traits that make populations more resistant to extinction. The major obstacle to persistence at low density is successful fertilisation (union between egg and sperm), and chronically rare species are more likely to survive when (1) fertilisation occurs inside or close to an adult, (2) mate choice involves long-distance signals, (3) adults or their surrogate gamete dispersers are highly mobile, or (4) the two sexes are combined in a single individual. In contrast, external fertilisation and wind- or water-driven passive dispersal of gametes, or sluggish or sedentary adult life habits in the absence of gamete vectors, appear to be incompatible with sustained rarity. We suggest that the documented increase in frequency of these traits among marine genera over geological time could explain observed secular decreases in rates of background extinction. Unanswered questions remain about how common chronic rarity actually is, which traits are consistently associated with chronic rarity, and how chronically rare species are distributed among taxa, and among the world's ecosystems and regions. |
英文关键词 | Biodiversity external fertilisation extinction gamete transfer historical trends internal fertilisation pollination population density rain forests |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418133700001 |
WOS关键词 | SPECIES ABUNDANCE ; FERTILIZATION SUCCESS ; POPULATION-DYNAMICS ; NATURAL-POPULATIONS ; DIADEMA-ANTILLARUM ; RARE ; SEA ; EXTINCTION ; EVOLUTION ; SPERM |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31363 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Calif Davis, Dept Earth & Planetary Sci, Davis, CA 95616 USA; 2.Univ Calif Davis, Coastal & Marine Sci Inst, Dept Ecol & Evolut, Davis, CA 95616 USA |
推荐引用方式 GB/T 7714 | Vermeij, Geerat J.,Grosberg, Richard K.. Rarity and persistence[J]. ECOLOGY LETTERS,2018,21(1):3-8. |
APA | Vermeij, Geerat J.,&Grosberg, Richard K..(2018).Rarity and persistence.ECOLOGY LETTERS,21(1),3-8. |
MLA | Vermeij, Geerat J.,et al."Rarity and persistence".ECOLOGY LETTERS 21.1(2018):3-8. |
条目包含的文件 | 条目无相关文件。 |
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