globalchange  > 全球变化的国际研究计划
DOI: 10.1186/s40462-019-0170-8
WOS记录号: WOS:000481909000001
论文题名:
Movement seasonality in a desert-dwelling bat revealed by miniature GPS loggers
作者: Conenna, Irene1,2; Lopez-Baucells, Adria3,4; Rocha, Ricardo1,5; Ripperger, Simon6,7; Cabeza, Mar1,2
通讯作者: Conenna, Irene
刊名: MOVEMENT ECOLOGY
ISSN: 2051-3933
出版年: 2019
卷: 7, 期:1
语种: 英语
英文关键词: Animal movement ; Biologging ; Lavia frons ; GPS technology ; Seasonal changes ; Telemetry
WOS关键词: INSECTIVOROUS BATS ; GUILD STRUCTURE ; CLIMATE-CHANGE ; WATER ; BEHAVIOR ; BIODIVERSITY ; KERNEL ; ADAPTATION ; MECHANISMS ; COMMUNITY
WOS学科分类: Ecology
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

Background Bats are among the most successful desert mammals. Yet, our understanding of their spatio-temporal dynamics in habitat use associated with the seasonal oscillation of resources is still limited. In this study, we have employed state-of-the-art lightweight GPS loggers to track the yellow-winged bat Lavia frons in a desert in northern Kenya to investigate how seasonality in a desert affects the a) spatial and b) temporal dimensions of movements in a low-mobility bat. Methods Bats were tracked during April-May 2017 (rainy season) and January-February 2018 (dry season) using 1-g GPS loggers. Spatial and temporal dimensions of movements were quantified, respectively, as the home range and nightly activity patterns. We tested for differences between seasons to assess responses to seasonal drought. In addition, we quantified home range overlap between neighbouring individuals to investigate whether tracking data will be in accordance with previous reports on territoriality and social monogamy in L. frons. Results We obtained data for 22 bats, 13 during the rainy and 9 during the dry season. Home ranges averaged 5.46 +/- 11.04 ha and bats travelled a minimum distance of 99.69 +/- 123.42 m/hour. During the dry season, home ranges were larger than in the rainy season, and bats exhibited high activity during most of the night. No apparent association with free water was identified during the dry season. The observed spatial organisation of home ranges supports previous observations that L. frons partitions the space into territories throughout the year. Conclusions Our results suggest that, in low-mobility bats, a potential way to cope with seasonally harsh conditions and resource scarcity in deserts is to cover larger areas and increase time active, suggesting lower cost-efficiency of the foraging activity. Climate change may pose additional pressures on L. frons and other low-mobility species by further reducing food abundances.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/145563
Appears in Collections:全球变化的国际研究计划

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作者单位: 1.Univ Helsinki, Fac Biol & Environm Sci, Global Change & Conservat, POB 65,Viikinkaari 1, FIN-00014 Helsinki, Finland
2.Univ Helsinki, Helsinki Inst Sustainabil Sci, Helsinki, Finland
3.Univ Lisbon, Ctr Ecol Evolut & Environm Changes cE3c, Fac Sci, P-1749016 Lisbon, Portugal
4.Granollers Museum Nat Sci, Granollers 08402, Catalonia, Spain
5.Univ Cambridge, Dept Zool, Conservat Sci Grp, Cambridge CB2 3EJ, England
6.Museum Nat Kunde, Leibniz Inst Evolut & Biodivers Sci, Berlin, Germany
7.Smithsonian Trop Res Inst, Balboa, Ancon, Panama

Recommended Citation:
Conenna, Irene,Lopez-Baucells, Adria,Rocha, Ricardo,et al. Movement seasonality in a desert-dwelling bat revealed by miniature GPS loggers[J]. MOVEMENT ECOLOGY,2019-01-01,7(1)
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