Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1890/ES15-00163.1 |
Thermal patterns constrain diurnal behavior of a ground-dwelling bird | |
Carroll, J. Matthew; Davis, Craig A.; Elmore, R. Dwayne; Fuhlendorf, Samuel D.; Thacker, Eric T. | |
通讯作者 | Carroll, J. Matthew |
来源期刊 | ECOSPHERE
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ISSN | 2150-8925 |
出版年 | 2015 |
卷号 | 6期号:11 |
英文摘要 | Recently, gaining knowledge about thermal refuges for vulnerable species has been a major focal point of ecological studies, and this focus has been heightened by predicted temperature increases associated with global climate change. To better understand how organisms respond to thermal landscapes and extremes, we investigated the thermal ecology of a gallinaceous bird species (northern bobwhite; Colinus virginianus, hereafter bobwhite) during a key life history period. Specifically, our study focused on the brood-rearing period of precocial bobwhite chicks associated with brood-attending adults. We measured site-specific black bulb temperatures (T-bb) and vegetation characteristics across 38 brood tracking days and 68 random landscape sites to assess thermal patterns at scales relevant to broods. We observed that the landscape was thermally heterogeneous, exhibiting variation in T-bb up to 40 degrees C during peak diurnal heating demonstrating a wide array of thermal choices available to broods. At 15: 00 h, broods selected thermal refuges that moderated T-bb on average up to 10.4 degrees C more than landscape sites. Moreover, broods exhibited behavioral thermoregulation through reduced movement and by occupying more moderate microclimates that afforded taller vegetation structure during high heat. Modeled climate projections suggest that future T-bb in thermal refuges will approach those currently avoided on the landscape, emphasizing the need for future conservation plans that acknowledge fine scale thermal space in climate change scenarios. These findings underline that studying both abiotic and biotic factors at scales relevant to organisms can increase our understanding of how thermally heterogeneous landscapes provide thermal choices under extreme conditions. |
英文关键词 | climate change Colinus virginianus conservation landscape microclimate northern bobwhite operative temperature thermal heterogeneity thermal refuge |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000367310600013 |
WOS关键词 | CLIMATE-CHANGE ; OPERATIVE TEMPERATURE ; NORTHERN BOBWHITES ; DESERT QUAIL ; THERMOREGULATION ; ENVIRONMENT ; SELECTION ; RELEVANT ; MICROHABITATS ; MICROCLIMATE |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/186874 |
作者单位 | Oklahoma State Univ, Dept Nat Resource Ecol & Management, Stillwater, OK 74078 USA |
推荐引用方式 GB/T 7714 | Carroll, J. Matthew,Davis, Craig A.,Elmore, R. Dwayne,et al. Thermal patterns constrain diurnal behavior of a ground-dwelling bird[J],2015,6(11). |
APA | Carroll, J. Matthew,Davis, Craig A.,Elmore, R. Dwayne,Fuhlendorf, Samuel D.,&Thacker, Eric T..(2015).Thermal patterns constrain diurnal behavior of a ground-dwelling bird.ECOSPHERE,6(11). |
MLA | Carroll, J. Matthew,et al."Thermal patterns constrain diurnal behavior of a ground-dwelling bird".ECOSPHERE 6.11(2015). |
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