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Circle of life:the common hamster(Cricetus cricetus)adaptations to the urban environment
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作者 Alexey V.SUROV elena A.ZAYTSEVA +8 位作者 Alexandr V.KUPTSOV elena a.katzman Pavel L.BOGOMOLOV Alexandra S.SAYAN Ekaterina V.POTASHNIKOVA Nikolay N.TOVPINETZ Ekaterina V.KUZNETSOVA Alexey Y.TSELLARIUS Natalia Y.FEOKTISTOVA 《Integrative Zoology》 SCIE CSCD 2019年第4期383-395,共13页
Traditionally,urbanization has been seen as a negative phenomenon for biota.However,changes in the envi­ronmental parameters induced by urbanization might be favorable for some species.Over the past half-century,... Traditionally,urbanization has been seen as a negative phenomenon for biota.However,changes in the envi­ronmental parameters induced by urbanization might be favorable for some species.Over the past half-century,the common hamster has actively populated cities,establishing populations in some European,Russian and Ka­zakhstan cities.Based on integrative methods,we investigated free-range common hamsters inhabiting Simfer­opol from 2015 to 2018 to reveal possible adaptations to the urbanized environment across several parameters,including lifespan,hibernation period,reproductive activity and body mass.Results show that in urban areas,the common hamster demonstrates an extremely short hibernation period compared to other localities,possi­bly due to enhanced food resources from urban forestry(walnuts,locus and hazelnut),allowing the species to start breeding very early(February)and finish as late as October.We present the first evidence of polyandry for this species:mating of receptive females with several males and subsequent confirmation of multiple paternity.Despite high reproductive potential,the lifespan of the common hamster in urban conditions is generally very short(less than 1 year).We speculate that in the process of synurbization,the common hamster’s innate plastici­ty across many life history traits permits it to successfully colonize throughout a wide range of habitats,with the ability to form novel adaptations to urban environments. 展开更多
关键词 body mass HIBERNATION LIFESPAN multiple paternity synurbization
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