干旱区生态环境知识资源中心(Arid): Seasonal activity patterns of a Kalahari mammal community: Trade-offs between environmental heat load and predation pressure

Arid

DOI	10.1002/ece3.11304
	Seasonal activity patterns of a Kalahari mammal community: Trade-offs between environmental heat load and predation pressure
	Vermeulen, Mika M.; Fritz, Herve; Strauss, W. Maartin; Hetem, Robyn S.; Venter, Jan A.
通讯作者	Vermeulen, MM
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2024
卷号	14 期号:4
英文摘要	Mammals in arid zones have to trade off thermal stress, predation pressure, and time spent foraging in a complex thermal landscape. We quantified the relationship between the environmental heat load and activity of a mammal community in the hot, arid Kalahari Desert. We deployed miniature black globe thermometers within the existing Snapshot Safari camera trap grid on Tswalu Kalahari Reserve, South Africa. Using the camera traps to record species' activity throughout the 24-h cycle, we quantified changes in the activity patterns of mammal species in relation to heat loads in their local environment. We compared the heat load during which species were active between two sites with differing predator guilds, one where lion (Panthera leo) biomass dominated the carnivore guild and the other where lions were absent. In the presence of lion, prey species were generally active under significantly higher heat loads, especially during the hot and dry spring. We suggest that increased foraging under high heat loads highlights the need to meet nutritional requirements while avoiding nocturnal activity when predatory pressures are high. Such a trade-off may become increasingly costly under the hotter and drier conditions predicted to become more prevalent as a result of climate change within the arid and semi-arid regions of southern Africa. Mammals in arid zones have to trade off thermal stress, predation pressure, and time spent foraging in a complex thermal landscape. In the presence of lion (Panthera leo) prey species were generally active under significantly higher heat loads, especially during the hot and dry spring. We suggest that increased foraging under high heat loads highlights the need to meet nutritional requirements while avoiding nocturnal activity when predatory pressures are high.image
英文关键词	anti-predator behaviour arid savanna behavioural plasticity camera traps miniature black globe thermometers (miniglobe) thermal landscape
类型	Article
语种	英语
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:001202783700001
WOS关键词	SOLAR-RADIATION ; RAIN-FOREST ; HABITAT USE ; PREY ; HERBIVORES ; SELECTION ; AFRICA ; RISK ; SIZE ; TEMPERATURES
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403454
推荐引用方式 GB/T 7714	Vermeulen, Mika M.,Fritz, Herve,Strauss, W. Maartin,et al. Seasonal activity patterns of a Kalahari mammal community: Trade-offs between environmental heat load and predation pressure[J],2024,14(4).
APA	Vermeulen, Mika M.,Fritz, Herve,Strauss, W. Maartin,Hetem, Robyn S.,&Venter, Jan A..(2024).Seasonal activity patterns of a Kalahari mammal community: Trade-offs between environmental heat load and predation pressure.ECOLOGY AND EVOLUTION,14(4).
MLA	Vermeulen, Mika M.,et al."Seasonal activity patterns of a Kalahari mammal community: Trade-offs between environmental heat load and predation pressure".ECOLOGY AND EVOLUTION 14.4(2024).