Dictionary of Human Evolution and Biology

Dictionary of Human Evolution and Biology

Predation Pressure Hypotheses

Proposals to explain selective pressures on primate group size. There are two hypotheses:

1. primates live in larger groups when there is high predation pressure; this provides for greater protection and with more individuals being vigilant predators are more likely to be detected.

2. predator pressure leads to smaller groups that evade predators through crypsis.

Full-Text Search Entries

primate origins hypotheses (... predation model, the grasp-leaping hypothesis, and the arboreal grasper hypothesis.)
pollinator hypothesis (... primate evolution and visual predation model.)
leopard hill hypothesis (... of predation by leopards rather than ...)
nectar feeding hypothesis (... variant of the visual predation model.)
visual predation model (Hypothesis of primate origins that proposes that stereoscopic vision and prehensile hands first ...)