Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13393 |
Simple signals indicate which period of the annual cycle drives declines in seasonal populations | |
Burant, Joseph B.1; Betini, Gustavo S.1; Norris, D. Ryan1,2 | |
2019-10-20 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Canada |
英文摘要 | For declining wild populations, a critical aspect of effective conservation is understanding when and where the causes of decline occur. The primary drivers of decline in migratory and seasonal populations can often be attributed to a specific period of the year. However, generic, broadly applicable indicators of these season-specific drivers of population decline remain elusive. We used a multi-generation experiment to investigate whether habitat loss in either the breeding or non-breeding period generated distinct signatures of population decline. When breeding habitat was reduced, population size remained relatively stable for several generations, before declining precipitously. When non-breeding habitat was reduced, between-season variation in population counts increased relative to control populations, and non-breeding population size declined steadily. Changes in seasonal vital rates and other indicators were predicted by the season in which habitat loss treatment occurred. Per capita reproductive output increased when non-breeding habitat was reduced and decreased with breeding habitat reduction, whereas per capita non-breeding survival showed the opposite trends. Our results reveal how simple signals inherent in counts and demographics of declining populations can indicate which period of the annual cycle is driving declines. |
英文关键词 | Annual cycle breeding conservation habitat loss non-breeding population dynamics seasonality |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000491015400001 |
WOS关键词 | EARLY-WARNING SIGNALS ; CLIMATE-CHANGE ; REPRODUCTIVE SUCCESS ; FORAGING BEHAVIOR ; REGIME SHIFT ; HABITAT LOSS ; GROWTH RATE ; BODY-SIZE ; DYNAMICS ; DROSOPHILA |
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/187720 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Guelph, Dept Integrat Biol, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada; 2.Nat Conservancy Canada, 245 Eglinton Ave East,Suite 410, Toronto, ON M4P 3J1, Canada |
推荐引用方式 GB/T 7714 | Burant, Joseph B.,Betini, Gustavo S.,Norris, D. Ryan. Simple signals indicate which period of the annual cycle drives declines in seasonal populations[J]. ECOLOGY LETTERS,2019. |
APA | Burant, Joseph B.,Betini, Gustavo S.,&Norris, D. Ryan.(2019).Simple signals indicate which period of the annual cycle drives declines in seasonal populations.ECOLOGY LETTERS. |
MLA | Burant, Joseph B.,et al."Simple signals indicate which period of the annual cycle drives declines in seasonal populations".ECOLOGY LETTERS (2019). |
条目包含的文件 | 条目无相关文件。 |
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