干旱区生态环境知识资源中心(Arid): Climatic Heterogeneity in the Bolivian Andes: Are Frogs Trapped?

Arid

DOI	10.2994/SAJH-D-18-00047.1
	Climatic Heterogeneity in the Bolivian Andes: Are Frogs Trapped?
	Burrowes, Patricia A.; Navas, Carlos A.; Jimenez-Robles, Octavio; Delgado, Peter; De la Riva, Ignacio
通讯作者	Burrowes, PA (corresponding author), Univ Puerto Rico, Dept Biol, San Juan, PR 00931 USA.
来源期刊	SOUTH AMERICAN JOURNAL OF HERPETOLOGY
ISSN	1808-9798
出版年	2020
卷号	18 期号:1 页码:1-12
英文摘要	Short-legged, small, robust frogs of the family Craugastoridae present a remarkable beta-diversity in the high Andes, their distributions being characterized by a very high degree of micro-endemism to specific valleys. We used dataloggers to study the temperature and humidity conditions of microhabitats of several species of the genus Microkayla at three elevation belts: below, within, and above the altitudinal range of their distribution in Bolivia. We also conducted thermal physiology experiments on a limited number of individuals of one of these species. Our aim was to infer on factors that may limit the distribution of anurans in a biological hotspot that is threatened by climate warming. We found an unexpected thermal heterogeneity within the slopes at three different Andean valleys that explained the specific distribution of species of Microkayla at each site. Species distribution was associated to elevation belts with the highest ambient relative humidity, and there was high variability in thermal preference when individuals were experimentally exposed to a thermal gradient. Critical thermal maxima compared to the temperatures that frogs confront in nature, as well as thermal performance trials, revealed that the studied species has a broad physiological tolerance to temperature. These results point to moisture, and not temperature, as the limiting climatic factor determining the occurrence of these species in high Andean slopes, but further experimental work on water balance is needed. The predicted desertification of the Andes in future climate change scenarios poses a potentially serious threat to this highly diverse group of amphibians.
英文关键词	Amphibians climate change distributions elevational gradient relative humidity thermal physiology
类型	Article
语种	英语
开放获取类型	Bronze, Green Published
收录类别	SCI-E
WOS记录号	WOS:000606573700001
WOS关键词	ANURA CRAUGASTORIDAE ; THERMAL PHYSIOLOGY ; HIGH ELEVATIONS ; TEMPERATURE ; PHRYNOPUS ; ECOLOGY ; MODEL ; CONSERVATION ; PATTERNS ; DISEASE
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349193
作者单位	[Burrowes, Patricia A.; Delgado, Peter] Univ Puerto Rico, Dept Biol, San Juan, PR 00931 USA; [Navas, Carlos A.] Univ Sao Paulo, Inst Biosci, Dept Physiol, Sao Paulo, Brazil; [Jimenez-Robles, Octavio; De la Riva, Ignacio] Museo Nacl Ciencias Nat, Madrid 28006, Spain; [Jimenez-Robles, Octavio] Australian Natl Univ, Res Sch Biol, Div Ecol & Evolut, Canberra, ACT, Australia
推荐引用方式 GB/T 7714	Burrowes, Patricia A.,Navas, Carlos A.,Jimenez-Robles, Octavio,et al. Climatic Heterogeneity in the Bolivian Andes: Are Frogs Trapped?[J],2020,18(1):1-12.
APA	Burrowes, Patricia A.,Navas, Carlos A.,Jimenez-Robles, Octavio,Delgado, Peter,&De la Riva, Ignacio.(2020).Climatic Heterogeneity in the Bolivian Andes: Are Frogs Trapped?.SOUTH AMERICAN JOURNAL OF HERPETOLOGY,18(1),1-12.
MLA	Burrowes, Patricia A.,et al."Climatic Heterogeneity in the Bolivian Andes: Are Frogs Trapped?".SOUTH AMERICAN JOURNAL OF HERPETOLOGY 18.1(2020):1-12.