Arid
DOI10.1007/s10682-013-9655-x
Friend or foe? Disparate plant-animal interactions of two congeneric rodents
Samuni-Blank, Michal1; Arad, Zeev1; Dearing, M. Denise2; Gerchman, Yoram3; Karasov, William H.4; Izhaki, Ido5
通讯作者Samuni-Blank, Michal
来源期刊EVOLUTIONARY ECOLOGY
ISSN0269-7653
EISSN1573-8477
出版年2013
卷号27期号:6页码:1069-1080
英文摘要

Food and water resources are limiting factors for animals in desert ecosystems. Fleshy fruits are a rare water source in deserts and when available they tend to attract a wide variety of organisms. Here we show that two congeneric rodent species, Acomys cahirinus and A. russatus, employ different fruit eating strategies that result in either dispersal or predation of the small seeds of the desert plant Ochradenus baccatus. The nocturnal A. cahirinus leaves intact seeds when consuming O. baccatus fruits and thus, acts mainly as a seed disperser; whereas the diurnal A. russatus consumes the whole fruit and digests the seeds and thus, acts mainly as a seed predator. Acomys russatus is subjected to the toxic products of the glucosinolates-myrosinase system found in O. baccatus fruits. Acomys cahirinus avoids the toxic compounds by consuming the pulp only, which contains glucosinolates but not the seeds that contain the enzyme that activates them. We suggest that the behavioral responses exhibited by A. russatus are the result of physiological adaptations to whole fruit consumption that are absent in A. cahirinus. Our results shed new light on the ecological divergence of the two congeneric species.


英文关键词Desert Fruits Glucosinolates Rodents Secondary compounds Seed dispersal
类型Article
语种英语
国家Israel ; USA
收录类别SCI-E
WOS记录号WOS:000326897500002
WOS关键词GOLDEN SPINY MICE ; MUSTARD OIL BOMB ; SEED DISPERSAL ; ACOMYS-CAHIRINUS ; SECONDARY METABOLITES ; DIRECTED DETERRENCE ; DESERT ECOSYSTEMS ; KANGAROO RATS ; WATER BUDGETS ; FRUIT CHOICE
WOS类目Ecology ; Evolutionary Biology ; Genetics & Heredity
WOS研究方向Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/177091
作者单位1.Technion Israel Inst Technol, Dept Biol, IL-32000 Haifa, Israel;
2.Univ Utah, Dept Biol, Salt Lake City, UT 84112 USA;
3.Univ Haifa, IL-36006 Tivon, Israel;
4.Univ Wisconsin, Dept Forest & Wildlife Ecol, Madison, WI 53706 USA;
5.Univ Haifa, Dept Environm & Evolutionary Biol, IL-31905 Haifa, Israel
推荐引用方式
GB/T 7714
Samuni-Blank, Michal,Arad, Zeev,Dearing, M. Denise,et al. Friend or foe? Disparate plant-animal interactions of two congeneric rodents[J],2013,27(6):1069-1080.
APA Samuni-Blank, Michal,Arad, Zeev,Dearing, M. Denise,Gerchman, Yoram,Karasov, William H.,&Izhaki, Ido.(2013).Friend or foe? Disparate plant-animal interactions of two congeneric rodents.EVOLUTIONARY ECOLOGY,27(6),1069-1080.
MLA Samuni-Blank, Michal,et al."Friend or foe? Disparate plant-animal interactions of two congeneric rodents".EVOLUTIONARY ECOLOGY 27.6(2013):1069-1080.
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