Hunter-Gatherers in context: Mammal community composition in a northern Tanzania landscape used by Hadza foragers and Datoga pastoralists

被引:7
作者
Wood, Brian M. [1 ,2 ]
Millar, Riccardo S. [3 ]
Wright, Nicholas [4 ]
Baumgartner, Joshua [5 ]
Holmquist, Hannah [6 ]
Kiffner, Christian [1 ,7 ]
机构
[1] Max Planck Inst Evolutionary Anthropol, Dept Human Behav Ecol & Culture, Leipzig, Germany
[2] Univ Calif Los Angeles, Dept Anthropol, Los Angeles, CA 90024 USA
[3] Dickinson Coll, Carlisle, PA 17013 USA
[4] Vassar Coll, Poughkeepsie, NY 12601 USA
[5] Univ Wisconsin, Madison, WI 53706 USA
[6] Iowa State Univ, Ames, IA USA
[7] Sch Field Studies, Ctr Wildlife Management Studies, Karatu, Tanzania
来源
PLOS ONE | 2021年 / 16卷 / 05期
关键词
RELATIVE ABUNDANCE INDEXES; PROTECTED AREAS; SPECIES RICHNESS; BIODIVERSITY CONSERVATION; POPULATION REGULATION; CAPREOLUS-CAPREOLUS; WILDLIFE RESEARCH; FOOD PREFERENCES; NATIONAL-PARK; ROE DEER;
D O I
10.1371/journal.pone.0251076
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In many regions of sub Saharan Africa large mammals occur in human-dominated areas, yet their community composition and abundance have rarely been described in areas occupied by traditional hunter-gatherers and pastoralists. Surveys of mammal populations in such areas provide important measures of biodiversity and provide ecological context for understanding hunting practices. Using a sampling grid centered on a Hadza hunter-gatherer camp and covering 36 km(2) of semi-arid savannah in northern Tanzania, we assessed mammals using camera traps (n = 19 stations) for c. 5 months (2,182 trap nights). In the study area (Tli'ika in the Hadza language), we recorded 36 wild mammal species. Rarefaction curves suggest that sampling effort was sufficient to capture mammal species richness, yet some species known to occur at low densities in the wider area (e.g. African lions, wildebeest) were not detected. Relative abundance indices of wildlife species varied by c. three orders of magnitude, from a mean of 0.04 (African wild dog) to 20.34 capture events per 100 trap-nights (Kirk's dik dik). To contextualize the relative abundance of wildlife in the study area, we compared our study's data to comparable camera trap data collected in a fully protected area of northern Tanzania with similar rainfall (Lake Manyara National Park). Raw data and negative binomial regression analyses show that wild herbivores and wild carnivores were generally detected in the national park at higher rates than in the Hadza-occupied region. Livestock were notably absent from the national park, but were detected at high levels in Tli'ika, and cattle was the second most frequently detected species in the Hadza-used area. We discuss how these data inform current conservation efforts, studies of Hadza hunting, and models of hunter-gatherer foraging ecology and diet.
引用
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页数:20
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