Temporal changes in abundance-occupancy relationships over 40 years.

ABSTRACT: Abundance-occupancy (A-O) relationships are widely documented for many organismal groups and regions, and have been used to gain an understanding of regional population and community trends. Monitoring changes in abundance and occupancy over time may be what is required to document changes in conservation status and needs for some species, communities, or areas.We hypothesize that if there is a higher proportion of declining species in one group of species compared with another (e.g., migratory species vs. permanent residents), then a consequence of that difference will be vastly different abundance-occupancy relationships. If this difference persists through time, then the resulting A-O relationships between the groups will continue to diverge.For neotropical migrants, short-distance migr

SUBMITTER: Manne LL 

PROVIDER: S-EPMC6988556 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature