Radio telemetry data which shows time spent at the territory boundary from Are testosterone pulses a physiological mechanism for expanding activity beyond territories?
A long-standing tenet of evolutionary endocrinology states that testosterone mediates the life-history trade-off between mating and paternal care. However, the support for a role of testosterone in su
Resource owners generally win contests against intruders, a phenomenon referred to as the 'Owner Advantage' (OA). Uca mjoebergi is a typical fiddler crab that is highly sociable, territorial and lives
Obligate brood parasitic birds often face the removal of their eggs by rejector hosts; for example, in North America, American robins ( Turdus migratorius) are robust egg rejectors of non-mimeti
In many social species, groups of animals defend a shared territory against rival conspecifics. Intruders can be detected from a variety of cues, including fecal deposits, and the strength of response
Models of territorial behaviour predict a reduction in territory size when food availability and competitive pressure increase. Moreover, body size can play an important role in territorial defence. T
