Phenology and productivity in a montane bird assemblage: Trends and responses to elevation and climate variation
Phenology and productivity in a montane bird assemblage: Trends and responses to elevation and climate variation
复制标题
山地鸟类群落的物候和生产力：海拔和气候变化的趋势和响应
DOI：
10.1111/gcb.14538
复制
发表时间：
2019
影响因子：
11.6
通讯作者：
DeSante, David F.
中科院分区：
文献类型：
--
作者：
Saracco, James F.;Siegel, Rodney B.;Helton, Lauren;Stock, Sarah L.;DeSante, David F.
气候变化与野生动物种群的历史和预测未来分布和动态有关。然而，这些变化背后的人口机制仍然知之甚少。在这里，我们评估了1993年至2017年期间沿约塞米蒂国家公园山区海拔梯度的六个地点的气候（年降雪量和春季温度异常）和鸟类人口统计变量的变化和趋势。我们实施了多物种层次模型，将人口统计学响应与海拔和气候协变量联系起来。气候和鸟类种群变量的年度变化很大。在研究期间，降雪量下降（最高点为10毫米/年，最低点为2毫米），而春季气温上升（0.045°C/年）。繁殖物候（幼鸟的平均首次捕获日期）提前0.2天/年（5天）;生产力（捕获幼鸟的概率）增加0.8%/年。繁殖物候早12天，在最低的最高站点相比，早18天，在最低的年相比，最高的降雪异常，6天前，在相对暖泉（控制降雪影响后）。生产力与海拔高度呈正相关。然而，海拔生产力的反应各不相同的物种，在较高的生产力比低海拔的物种往往是记录范围退缩在过去的世纪。生产力与降雪量呈负相关，与春季气温呈正相关。总的来说，我们的研究结果表明，鸟类已经跟踪了这个系统中多变的气候条件，并受益于温暖，干燥的春天的趋势。然而，我们警告说，持续变暖和多年干旱或极端天气年份可能会在未来改变这些关系。多物种人口模型，如这里实现的，可以提供一个重要的工具，在全球变化下的物种组合的保护指导。
Climate variation has been linked to historical and predicted future distributions and dynamics of wildlife populations. However, demographic mechanisms underlying these changes remain poorly understood. Here, we assessed variation and trends in climate (annual snowfall and spring temperature anomalies) and avian demographic variables from mist‐netting data (breeding phenology and productivity) at six sites along an elevation gradient spanning the montane zone of Yosemite National Park between 1993 and 2017. We implemented multi‐species hierarchical models to relate demographic responses to elevation and climate covariates. Annual variation in climate and avian demographic variables was high. Snowfall declined (10 mm/year at the highest site, 2 mm at the lowest site), while spring temperature increased (0.045°C/year) over the study period. Breeding phenology (mean first capture date of juvenile birds) advanced by 0.2 day/year (5 days); and productivity (probability of capturing a juvenile bird) increased by 0.8%/year. Breeding phenology was 12 days earlier at the lowest compared to highest site, 18 days earlier in years with lowest compared to highest snowfall anomalies, and 6 d earlier in relatively warm springs (after controlling for snowfall effects). Productivity was positively related to elevation. However, elevation–productivity responses varied among species; species with higher productivity at higher compared to lower elevations tended to be species with documented range retractions during the past century. Productivity tended to be negatively related to snowfall and was positively related to spring temperature. Overall, our results suggest that birds have tracked the variable climatic conditions in this system and have benefited from a trend toward warmer, drier springs. However, we caution that continued warming and multi‐year drought or extreme weather years may alter these relationships in the future. Multi‐species demographic modeling, such as implemented here, can provide an important tool for guiding conservation of species assemblages under global change.
登录
查看更多内容
除了变暖的指纹外：对加利福尼亚州异质气候变化的个人主义生物地理反应。
影响因子：
11.6
作者：
Rapacciuolo G;Maher SP;Schneider AC;Hammond TT;Jabis MD;Walsh RE;Iknayan KJ;Walden GK;Oldfather MF;Ackerly DD;Beissinger SR
通讯作者：
Beissinger SR
与雪有关的环境变化对高海拔灰鹟 (Empidonax oberholseri) 繁殖时间表和生产力的影响
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
M. E. Pereyra
通讯作者：
M. E. Pereyra
鸟类对干旱和火灾的反应：社区层面的视角。
DOI：
10.1002/eap.1751
发表时间：
2018
期刊：
Ecological applications : a publication of the Ecological Society of America
影响因子：
--
作者：
J. Saracco;S. M. Fettig;George L San Miguel;D. Mehlman;Brent E. Thompson;S. Albert
通讯作者：
S. Albert
监测禽类生产力和存活率 (MAPS) 计划的方法学考虑
DOI：
--
发表时间：
2004
期刊：
影响因子：
--
作者：
D. Desante;J. Saracco;D. O'Grady;Kenneth M. Burton;B. Walker
通讯作者：
B. Walker
太平洋西北地区国家公园常驻和迁徙陆地鸟类种群的近期稳定性
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
C. Ray;J. Saracco;Mandy L Holmgren;Robert L. Wilkerson;R. Siegel;K. Jenkins;J. Ransom;P. J. Happe;J. Boetsch;M. H. Huff
通讯作者：
M. H. Huff