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| DOI | 10.1007/s10764-024-00427-5 |
| Environmental Effects on Nocturnal Encounters of Two Sympatric Bushbabies, Galago moholi and Otolemur crassicaudatus, in a High-Altitude South African Northern Mistbelt Montane Habitat | |
| 发表日期 | 2024 |
| ISSN | 0164-0291 |
| EISSN | 1573-8604 |
| 英文摘要 | Temperate living primates cope with a variety of environmental stressors, which may vary by body mass. We studied two sympatric galagos, the thick-tailed greater galago, Otolemur crassicaudatus (1.5 kg) and the southern lesser galago, Galago moholi (146 g), living in a South African northern mistbelt forest. We used 75 nightly encounter walks using thermal imaging from July 2017 to June 2018 to locate galagos (245 thick-tailed greater galago encounters, 207 southern lesser galago encounters). For each species' encounters we documented survey location, growing season, insect and gum availability, ambient temperature, temperature season, rainfall, humidity, night length, hour, moon phase and fraction of moon illumination. We encountered the southern lesser galago at both cooler and warmer temperatures, later in the night, and more often during greater lunar illumination, e.g., they were lunarphilic. We had few encounters of the thick-tailed greater galago during very cold and very warm temperatures, more encounters earlier in the night, and more encounters during periods of low lunar illumination, e.g., they were lunarphobic. Our results can be understood in terms of body mass differences. A smaller body mass requires greater and more consistent energy, meaning the southern lesser galago needs to both maintain energy needs across different temperature regimes and to forage more extensively later in the night to attain enough food to support them throughout the following day. The thick-tailed greater galago's larger body mass may buffer them during colder periods and allow them to forage earlier in the night. Being either lunarphobic or lunarphilic may relate to activity patterns of their predators. The southern lesser galago are visually oriented insect predators and being lunarphilic may facilitate both predator detection and enhance successful insect predation. Understanding how body mass may facilitate or hinder physiological and behavioral responses to environmental stressors is thus relevant to understanding species' resilience to climate change. |
| 英文关键词 | Thermal imaging; Temperate; Physiology; Body mass; Masking factors; Climate change |
| 语种 | 英语 |
| WOS研究方向 | Zoology |
| WOS类目 | Zoology |
| WOS记录号 | WOS:001200723800001 |
| 来源期刊 | INTERNATIONAL JOURNAL OF PRIMATOLOGY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/290734 |
| 作者单位 | University of Colorado System; University of Colorado Boulder; University of Pretoria; University of Pretoria; University of Venda; Centre National de la Recherche Scientifique (CNRS) |
| 推荐引用方式 GB/T 7714 | . Environmental Effects on Nocturnal Encounters of Two Sympatric Bushbabies, Galago moholi and Otolemur crassicaudatus, in a High-Altitude South African Northern Mistbelt Montane Habitat[J],2024. |
| APA | (2024).Environmental Effects on Nocturnal Encounters of Two Sympatric Bushbabies, Galago moholi and Otolemur crassicaudatus, in a High-Altitude South African Northern Mistbelt Montane Habitat.INTERNATIONAL JOURNAL OF PRIMATOLOGY. |
| MLA | "Environmental Effects on Nocturnal Encounters of Two Sympatric Bushbabies, Galago moholi and Otolemur crassicaudatus, in a High-Altitude South African Northern Mistbelt Montane Habitat".INTERNATIONAL JOURNAL OF PRIMATOLOGY (2024). |
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