DOI: 10.1016/j.palaeo.2015.08.038
论文题名: Did the Late Pleistocene climatic changes influence evolutionary trends in body size of the red deer? The study case of the Italian Peninsula
作者: Pandolfi L. ; Maiorino L. ; Sansalone G.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 440 起始页码: 110
结束页码: 115
语种: 英语
英文关键词: Body size
; Cervus elaphus
; Evolutionary trends
; Italy
; Late Pleistocene
; Stasis
英文摘要: Variations in the body size of red deer (Cervus elaphus) have been reported by several authors from several European fossiliferous localities for the Late Pleistocene and Holocene. Recently, several contributions focused on body size variation of red deer populations from the Italian Peninsula. Evolutionary trends of phenotypic traits may follow distinct tempos and modes of evolution such as Brownian, Ornstein-Uhlenbeck, stasis or random walk. Here, we investigated which evolutionary model better explained the temporal trend in body size of C. elaphus ssp. from the Italian Peninsula using modern statistical tools. We also tested the potential relationships between climate change and geographical variation through the Late Pleistocene. Our sample includes 1090 specimens from several peninsular Italian localities. For each specimen, we extracted the Size Variation Index calculated on postcranial elements. We found that stasis was the model better explaining the body size evolution in C. elaphus. We also found a nonsignificant interaction between body size and climate, whereas we detected a significant relationship with geography. We hypothesized that the red deer phenotypical plasticity was able to mitigate the selective constraints driven by climatic changes and geographical variability through the Late Pleistocene and Holocene, therefore returning a no neat variation in body size. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68722
Appears in Collections: 过去全球变化的重建
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作者单位: Dipartimento di Scienze, Università Roma Tre, Largo San Leonardo Murialdo 1, Rome, Italy; Center for Evolutionary Ecology, Largo San Leonardo Murialdo 1, Rome, Italy
Recommended Citation:
Pandolfi L.,Maiorino L.,Sansalone G.. Did the Late Pleistocene climatic changes influence evolutionary trends in body size of the red deer? The study case of the Italian Peninsula[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,440