干旱区生态环境知识资源中心(Arid): Anuran 3D models reveal the relationship between surface area-to-volume ratio and climate

Arid

DOI	10.1111/jbi.13593
	Anuran 3D models reveal the relationship between surface area-to-volume ratio and climate
	Ferreira Amado, Talita; Gloria Moreno Pinto, Marta; Angel Olalla-Tarraga, Miguel
通讯作者	Ferreira Amado, Talita
来源期刊	JOURNAL OF BIOGEOGRAPHY
ISSN	0305-0270
EISSN	1365-2699
出版年	2019
卷号	46 期号:7 页码:1429-1437
英文摘要	Aim The relationship size-environment has been continuously debated for ectotherms. Surface-to-volume ratios are recurrently suggested as the cause of body size responses to climate, but most inferences on organismal size clines stem from single linear measurements of body length. Here, we illustrate how new photogrammetric techniques can be applied to characterize amphibian morphologies with 3D models. Using the natterjack toad (Epidalea calamita) as model organism, we compared the performance of climatic models in accounting for body size (measured as snout-to vent length, SVL) and body geometry (surface area-to-volume ratios) variation across macroclimatic gradients. Location Palaearctic. Taxon Epidalea calamita (former genus Bufo). Methods We used photogrammetry techniques to reconstruct 104 museum specimens of Epidalea calamita into 3D models and to collect geometric data (volume and surface area) to calculate surface area-to-volume ratios (SA:V). We then apply spatial and non-spatial regression to examine the relationships between SA:V, SVL and a set of bioclimatic variables. Results In accordance with the water conservation hypothesis, SA:V decreased towards more arid environments, a pattern that remained consistent after accounting for spatial autocorrelation effects. Only mean annual temperature was significant correlated with SVL. The contrast between both sets of models indicates that more traditional body size metrics (SVL) and body geometry (SA:V) do not operate the same constraints. Main conclusions We show that the variation in SA:V can be explained by the geographical variation in aridity. Evaporative water loss in wet-skinned ectotherms is highly dependent on the surface area of the skin exposed to the air. In contrast, SVL models detected that body length was more associated with mean annual temperature. This finding stresses the importance of selecting different metrics of body geometry and body size when examining variation across climatic gradients.
英文关键词	3D models amphibians Bergmann's rule biogeography body size surface area-to-volume ratio
类型	Article
语种	英语
国家	Spain
收录类别	SCI-E
WOS记录号	WOS:000474489600012
WOS关键词	LIFE-HISTORY TRAITS ; BODY-SIZE ; BERGMANNS RULE ; WATER ; AMPHIBIANS ; EXPLANATION ; TEMPERATURE ; ECOLOGY ; CLINES ; FROGS
WOS类目	Ecology ; Geography, Physical
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216821
作者单位	Rey Juan Carlos Univ, Dept Biol & Geol, Phys & Inorgan Chem, Madrid, Spain
推荐引用方式 GB/T 7714	Ferreira Amado, Talita,Gloria Moreno Pinto, Marta,Angel Olalla-Tarraga, Miguel. Anuran 3D models reveal the relationship between surface area-to-volume ratio and climate[J],2019,46(7):1429-1437.
APA	Ferreira Amado, Talita,Gloria Moreno Pinto, Marta,&Angel Olalla-Tarraga, Miguel.(2019).Anuran 3D models reveal the relationship between surface area-to-volume ratio and climate.JOURNAL OF BIOGEOGRAPHY,46(7),1429-1437.
MLA	Ferreira Amado, Talita,et al."Anuran 3D models reveal the relationship between surface area-to-volume ratio and climate".JOURNAL OF BIOGEOGRAPHY 46.7(2019):1429-1437.