How animals discover habitat and refine their movements to restricted
areas: evidence from reintroduced bison
Abstract
Restricted space use patterns are common in mobile organisms, yet an
understanding of how such patterns are developed is lacking. We
conceptualize the settlement process of home range formation as the
discovery of patches and subsequent decision to return to them. We then
test how forage quality and landscape structure influence this process.
Using 5 years of data from reintroduced bison (n = 10), we found patch
discovery was influenced by landscape structure, with lower traveling
costs, larger patch size, and higher patch connectivity facilitating
patch discovery. Once discovered, areas of high-quality were more likely
incorporated into regular space use, especially if an individual had
recently visited relatively high-quality areas. Overall, landscape
structure mainly influenced patch discovery, while forage quality
underlined space use refinement. Our work provides a mechanistic
understanding of home range development, elucidating the iterative
process of settlement as a function of both landscape structure and
habitat quality.