Global positioning system (GPS) telemetry technology allows us to monitor and to map the
details of animal movement, securing vast quantities of such data even for highly cryptic …

Extended bouts of fasting are ingrained in the ecology of many organisms, characterizing
aspects of reproduction, development, hibernation, estivation, migration, and infrequent …

Electronic tracking tags have revolutionized our understanding of broad-scale movements
and habitat use of highly mobile marine animals, but a large gap in our knowledge still …

Ecological Dynamics is unique in that it can serve both as an introductory text in numerous
ecology courses and as a resource for more advanced work. It provides a flexible …

Sexual segregation in foraging is predicted from the great size disparity of male and female
northern elephant seals, Mirounga angustirostris. Our aim was to test this prediction by …

The small size of the billions of migrating songbirds commuting between temperate breeding
sites and the tropics has long prevented the study of the largest part of their annual cycle …

The migratory movements of seabirds (especially smaller species) remain poorly
understood, despite their role as harvesters of marine ecosystems on a global scale and …

Until the advent of electronic tagging technology,,,, the inherent difficulty of studying swift
and powerful marine animals made ecological information about sharks of the family …

1. I present a conceptual model that predicts the proximate and ultimate factors that
determine whether a mammal species has the potential to be regulated by intrinsic …

Migratory divides are contact zones between breeding populations that use divergent
migratory routes and have been described in a variety of species. These divides are of major …