Drought but not population density influences dietary niche breadth in white-tailed deer in a semiarid environment DJ Folks, K Gann, TE Fulbright, DG Hewitt… - Ecosphere, 2014

Texas Deer Population, Management News and Information Archive

     A premise in ungulate foraging theory is that animals become less selective and expand the breadth of their dietary niche as the availability of palatable forage declines with increasing herbivore population density or drought ... For white-tailed deer, the idea that dietary niches expand in response to increasing population density is not robust across environments. In semiarid environments, variation in precipitation has a much stronger influence on dietary niche breath and intraspecific diet overlap of deer than population density does...  

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