Behavioral development and parental investment in captive Bongos (Tragelaphus eurycerus)
The bongo is one of the least-studied of the Tragelaphini. In a study of five captive bongo calves, two males and three females, we measured several behaviors important to parental investment theory (Clutton-Brock et al., 1982), in order to describe their pattern in a rare species, and add to the database pertaining to sex allocation […]
Hatching asynchrony and offspring sex influence the subsequent exploratory behaviour of zebra finches
The ecological and evolutionary consequences of variation in behaviour between individuals are well studied, yet the causes of such variation remain poorly understood. Parents can generally exert a great deal of influence on the early life of their offspring, so one possibility is that the mode of parental investment determines subsequent offspring behaviours. In birds, […]
Delay, avoidance and protection in oviposition behaviour in response to fine-scale variation in egg parasitism risk
Organisms that do not provide parental care are challenged with multiple factors and risks in the selection of an oviposition site. Oviposition site selection greatly affects offspring fitness, but little is known about how females respond to fine-scale variation in environmental cues. The seed beetle, Mimosestes amicus, shows remarkable behavioural plasticity in response to variation […]
Cortisol treatment affects locomotor activity and swimming behaviour of male smallmouth bass engaged in paternal care: A field study using acceleration biologgers
Paternal care, where the male provides sole care for the developing brood, is a common form of reproductive investment among teleost fish and ubiquitous in the Centrarchidae family. Throughout the parental care period, nesting males expend energy in a variety of swimming behaviours, including routine and burst swimming, vigilantly monitoring the nest area and protecting […]