干旱区生态环境知识资源中心(Arid): Phenotypic plasticity under desert environment constraints: mandible variation in the dwarf fat-tailed jerboa, Pygeretmus pumilio (Rodentia: Dipodidae)

Arid

DOI	10.1139/cjz-2019-0029
	Phenotypic plasticity under desert environment constraints: mandible variation in the dwarf fat-tailed jerboa, Pygeretmus pumilio (Rodentia: Dipodidae)
	Krystufek, B.1; Janzekovic, F.2; Shenbrot, G.3; Ivajnsic, D.2; Klenovsek, T.2
通讯作者	Klenovsek, T.
来源期刊	CANADIAN JOURNAL OF ZOOLOGY
ISSN	0008-4301
EISSN	1480-3283
出版年	2019
卷号	97 期号:10 页码:940-951
英文摘要	Arid areas have a comparatively narrow range of habitat types, with restricted variation in environmental parameters, leaving narrow boundaries for phenotypic variation to correlate with ecological variables. To test this presumption, we explored variation in size and shape of the mandible in the dwarf fat-tailed jerboa (Pygeretmus pumilio (Kerr, 1792)) under the constraints of a rigorous desert environment. Size varied significantly and predictably with geographic position and demonstrated a strong, nonlinear longitudinal pattern. Moreover, size was associated with several other climatic variables but not with soil properties or with proxies for primary productivity. Our results suggest that for rodents exposed to rapid and extreme changes, larger size may have multiple advantages, notably in maintaining euthermia during cold nights and efficient water metabolism under aridity stress, in accumulating fat reserves for hibernation, and in digging deeper burrows, better protected from surface extremes. Shape varied clinally along the longitudinal transect, and the pattern was affected more by temperature than by precipitation. We conclude that the success of dwarf fat-tailed jerboa in occupying an extensive geographic range relies on their ability to meet environmental heterogeneity through cohesive and diverse responses, including physiology, behaviour, life-history traits, and morphological plasticity.
英文关键词	Bergmann's rule desert ecology ecomorphology geometric morphometrics dwarf fat-tailed jerboa Pygeretmus pumilio resource availability
类型	Article
语种	英语
国家	Slovenia ; Israel
收录类别	SCI-E
WOS记录号	WOS:000489864900009
WOS关键词	BODY-SIZE ; GEOGRAPHIC-VARIATION ; CLIMATE-CHANGE ; MORPHOLOGY ; DIPODOMYS ; SKULL ; SHAPE ; RAT
WOS类目	Zoology
WOS研究方向	Zoology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214778
作者单位	1.Slovenian Museum Nat Hist, Presernova 20, Ljubljana 1000, Slovenia; 2.Univ Maribor, Fac Nat Sci & Math, Koroska 160, SLO-2000 Maribor, Slovenia; 3.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Mitrani Dept Desert Ecol, Midreshet Ben Gurion, Israel
推荐引用方式 GB/T 7714	Krystufek, B.,Janzekovic, F.,Shenbrot, G.,et al. Phenotypic plasticity under desert environment constraints: mandible variation in the dwarf fat-tailed jerboa, Pygeretmus pumilio (Rodentia: Dipodidae)[J]. Ben-Gurion University of the Negev,2019,97(10):940-951.
APA	Krystufek, B.,Janzekovic, F.,Shenbrot, G.,Ivajnsic, D.,&Klenovsek, T..(2019).Phenotypic plasticity under desert environment constraints: mandible variation in the dwarf fat-tailed jerboa, Pygeretmus pumilio (Rodentia: Dipodidae).CANADIAN JOURNAL OF ZOOLOGY,97(10),940-951.
MLA	Krystufek, B.,et al."Phenotypic plasticity under desert environment constraints: mandible variation in the dwarf fat-tailed jerboa, Pygeretmus pumilio (Rodentia: Dipodidae)".CANADIAN JOURNAL OF ZOOLOGY 97.10(2019):940-951.