Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15923 |
Testing the match–mismatch hypothesis in bighorn sheep in the context of climate change | |
Limoilou-Amé; lie Renaud; Marco Festa-Bianchet; Fanie Pelletier | |
2021-10-24 | |
发表期刊 | Global Change Biology
![]() |
出版年 | 2021 |
英文摘要 | In species with long gestation, females commit to reproduction several months before parturition. If cues driving conception date are uncoupled from spring conditions, parturition could be mistimed. Mismatch may increase with global change if the rate of temporal changes in autumn cues differs from the rate of change in spring conditions. Using 17 years of data on climate and vegetation phenology, we show that autumn temperature and precipitation, but not vegetation phenology, explain parturition date in bighorn sheep. Although autumn cues drive the timing of conception, they do not predict conditions at parturition in spring. We calculated the mismatch between individual parturition date and spring green-up, assessed whether mismatch increased over time and investigated the consequences of mismatch on lamb neonatal survival, weaning mass and overwinter survival. Mismatch fluctuated over time but showed no temporal trend. Temporal changes in green-up date did not lead to major fitness consequence of mismatch. Detailed data on individually marked animals revealed no effect of mismatch on neonatal or overwinter survival, but lamb weaning mass was negatively affected by mismatch. Capital breeders might be less sensitive to mismatch than income breeders because they are less dependent on daily food acquisition. Herbivores in seasonal environments may access sufficient forage to sustain lactation before or after the spring ‘peak’ green-up, and partly mitigate the consequences of a mismatch. Thus, the effect of phenological mismatch on fitness may be affected by species life history, highlighting the complexity in quantifying trophic mismatches in the context of climate change. |
领域 | 气候变化 ; 资源环境 |
URL | 查看原文 |
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/340769 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Limoilou-Amé,lie Renaud,Marco Festa-Bianchet,等. Testing the match–mismatch hypothesis in bighorn sheep in the context of climate change[J]. Global Change Biology,2021. |
APA | Limoilou-Amé,lie Renaud,Marco Festa-Bianchet,&Fanie Pelletier.(2021).Testing the match–mismatch hypothesis in bighorn sheep in the context of climate change.Global Change Biology. |
MLA | Limoilou-Amé,et al."Testing the match–mismatch hypothesis in bighorn sheep in the context of climate change".Global Change Biology (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论