Abstract
Seed dispersal directly affects plant establishment, gene flow, and
fitness. As a result, understanding patterns in seed dispersal is
fundamental to understanding plant ecology and evolution, as well as
addressing challenges of extinction and global change. Our ability to
understand dispersal is limited because few frameworks have emerged that
provide a means for predicting dispersal across time and space. We
provide a novel framework that links seed dispersal to animal social
status, a key component of behavior. Because social status affects
individual resource access and movement, it provides a critical link to
two factors that determine seed dispersal: the quantity of seeds
dispersed and the spatial patterns of dispersal. Moreover, individual
social status may have unappreciated effects on post-dispersal seed
survival and recruitment when social status affects individual habitat
use. Hence, environmental changes, such as selective harvesting and
urbanization, that affect animal social structure may have unappreciated
consequences for seed dispersal. The framework we present highlights
these exciting new hypotheses linking environmental change, social
structure, and seed dispersal. By outlining experimental approaches to
test these hypotheses, we hope to facilitate studies across a wide
diversity of plant-frugivore networks, which may uncover emerging
hotspots or catastrophic losses of seed dispersal.