干旱区生态环境知识资源中心(Arid): Responding to increased aridity: Evidence for range shifts in lizards across a 50-year time span in Joshua Tree National Park

Arid

DOI	10.1016/j.biocon.2020.108667
	Responding to increased aridity: Evidence for range shifts in lizards across a 50-year time span in Joshua Tree National Park
	Barrows, Cameron W.; Sweet, Lynn C.; Rangitsch, Jeffery; Lalumiere, Kristen; Green, Tyler; Heacox, Scott; Davis, Melanie; Vamstad, Michael; Heintz, James; Rodgers, Jane E.
通讯作者	Barrows, CW
来源期刊	BIOLOGICAL CONSERVATION
ISSN	0006-3207
EISSN	1873-2917
出版年	2020
卷号	248
英文摘要	North American deserts are warming and becoming more arid at rates that exceed global averages. Desert lizard populations are typically dependent on plant and arthropod food resources catalyzed by variations in aridity. Shifts in those lizard distributions coincident with increasing aridity therefore present an opportunity to document responses to modern climate change as it is happening. Here, we analyzed observation frequencies across an elevation gradient for seven lizard species, comparing a historical dataset (1958-1972) to recent observations (2014-2018) within Joshua Tree National Park, a landscape straddling the Mojave and Colorado Deserts in southern California. Phrynosoma platyrhinos, Aspidoscelis tigris, and Callisaurus draconoides, now appear to occupy new, higher elevation habitats compared to the historical baseline. Except for Sceloporus occidentalis, observation records for each species indicated shifts toward the upper elevations of their ranges. Observations for Uta stansburiana, C. draconoides and A. tigris each shifted their mean elevation upslope >= 10%. Phrynosoma platyrhinos and A. tigris shifted their maximum elevations by >= 15%. To assess whether those elevation shifts could then be corroborated with independent data, we compared the historic-recent observation data with plot-based surveys where we measured lizard densities varying with elevation and rainfall levels from 2014 to 2019. Those historical-recent shifts paralleled changes in lizard densities over the same elevation gradient, with statistical support for the upslope shifts identified for U. stansburiana, A. tigris and, S. magister. Additionally, despite increases in warming and aridity, we found species-specific elevations where local conditions are supporting higher population densities and that may represent climate refugia.
英文关键词	Conservation Climate change Historical comparisons Responses to drought Climate refugia Leaning upslope
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000556843900028
WOS关键词	CLIMATE-CHANGE ; HORNED LIZARD ; BIODIVERSITY ; DIVERSITY ; DROUGHT
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325475
作者单位	[Barrows, Cameron W.; Sweet, Lynn C.; Heacox, Scott; Davis, Melanie; Heintz, James] Univ Calif Riverside, Ctr Conservat Biol, 75-080 Frank Sinatra Dr, Palm Desert, CA 92211 USA; [Rangitsch, Jeffery; Green, Tyler] Great Basin Inst, Reno, NV 89511 USA; [Lalumiere, Kristen; Vamstad, Michael; Rodgers, Jane E.] Joshua Tree Natl Pk, Twentynine Palms, CA 92277 USA
推荐引用方式 GB/T 7714	Barrows, Cameron W.,Sweet, Lynn C.,Rangitsch, Jeffery,et al. Responding to increased aridity: Evidence for range shifts in lizards across a 50-year time span in Joshua Tree National Park[J],2020,248.
APA	Barrows, Cameron W..,Sweet, Lynn C..,Rangitsch, Jeffery.,Lalumiere, Kristen.,Green, Tyler.,...&Rodgers, Jane E..(2020).Responding to increased aridity: Evidence for range shifts in lizards across a 50-year time span in Joshua Tree National Park.BIOLOGICAL CONSERVATION,248.
MLA	Barrows, Cameron W.,et al."Responding to increased aridity: Evidence for range shifts in lizards across a 50-year time span in Joshua Tree National Park".BIOLOGICAL CONSERVATION 248(2020).