Circadian rhythms of activity, metabolic rate and body temperature in desert hamsters (<i>Phodopus roborovskii</i>)

Luping, 王鲁平 Wang; Shun, 周顺 Zhou; Guoqiang, 孙国强 Sun

doi:10.5846/stxb201104260554

Cited by 4 publications

(1 citation statement)

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“…Our study system included the midday gerbil ( Meriones meridianus , 49.53–53.6 g), desert hamster ( Phodopus roborovskii , 20.4–27.5 g), five-toed jerboa ( Orientallactaga sibirica , 89.2–96.2 g), and northern three-toed jerboa ( Dipus sagitta , 59.6–89.7 g), which are common species in many East Asian deserts [ 28 , 29 ]. These species are nocturnal.…”

Section: Introductionmentioning

confidence: 99%

The Spatial Niche and Influencing Factors of Desert Rodents

Li,

Zhu,

Ming

et al. 2024

Animals

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Resource partitioning may allow species coexistence. Sand dunes in the typical steppe of Alxa Desert Inner Mongolia, China, consisting of desert, shrub, and grass habitats, provide an appropriate system for studies of spatial niche partitioning among small mammals. In this study, the spatial niche characteristics of four rodents, Orientallactaga sibirica, Meriones meridianus, Dipus sagitta, and Phodopus roborovskii, and their responses to environmental changes in the Alxa Desert were studied from 2017 to 2021. Using the capture-mark-recapture method, we tested if desert rodents with different biological characteristics and life history strategies under heterogeneous environmental conditions allocate resources in spatial niches to achieve sympatric coexistence. We investigated the influence of environmental factors on the spatial niche breadth of rodents using random forest and redundancy analyses. We observed that the spatial niche overlap between O. sibirica and other rodents is extremely low (overlap index ≤ 0.14). P. roborovskii had the smallest spatial niche breadth. Spatial niche overlap was observed in two distinct species pairs, M. meridianus and D. sagitta, and P. roborovskii and D. sagitta. The Pielou evenness index of rodent communities is closely related to the spatial distribution of rodents, and the concealment of habitats is a key factor affecting the spatial occupation of rodents.

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Section: Introductionmentioning

confidence: 99%