Are Bison Intermediate Feeders? Unveiling Summer Diet Selection at the Northern Fringe of Historical Distribution
作者： Joshua L. Leonard , Lora B. Perkins , Duane J. Lammers , Jonathan A. Jenks
DOI: 10.1016/J.RAMA.2017.01.005
关键词: DNA barcoding 、 Forb 、 Ecosystem 、 Ecology 、 Feces 、 Bison bison 、 Selection (genetic algorithm) 、 Forage 、 Biology 、 Herbaceous plant
摘要: ABSTRACT Bison (Bison bison) were historically distributed throughout North America with the northern edge of distribution occurring in north-central Manitoba and surrounding provinces. Despite bison occupying boreal zone America, little is known their forage selection patterns herbaceous plant material when pastures within a densely forested aspen ecosystem. In 2015 we initiated study to examine for among summer months (June–August). We hypothesized that vegetative composition diets would be consistent availability, shift predominately consist grass sedge species. opportunistically collected adult female fecal samples (N = 99) identified using DNA barcoding method. estimated availability lowest taxonomical level possible modified Daubenmire frame. Overall, composed 44.3% grass, 37.7%...
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