Behavioural and hormonal effects of social isolation and neophobia in a gregarious bird species, the European starling (Sturnus vulgaris)

  title={Behavioural and hormonal effects of social isolation and neophobia in a gregarious bird species, the European starling (Sturnus vulgaris)},
  author={Beate Apfelbeck and Michael Raess},
  journal={Hormones and Behavior},

Tables from this paper

Territorial behaviour and testosterone in male black redstarts (Phoenicurus ochruros)
T territorial behaviour and its hormonal basis in male black redstarts – a temperate-zone songbird that defends territories during breeding and in autumn after feather moult and just before migrating to its wintering grounds is studied.
Behavioural and Hormonal Stress Responses to Social Separation in Ravens, Corvus corax
The results show that behavioural reactions are not always linked with hormonal responses to stress, and further emphasise the importance of investigating effects of early‐life experiences.
Costs and benefits of social connectivity in juvenile Greylag geese
It is shown that birds with greater connectivity early in life attempted to breed at a younger age and successful breeders with higher early connectivity scores had higher numbers of fledged goslings, suggesting social context in early life stages may have long-term effects on individual fitness.
Effect of Noise on the Social Structure of European Starlings (Sturnus vulgaris)
It is suggested that noise exposure impairs starlings’ ability to form stable social dominance hierarchies, although it is unclear whether this is due to masking of acoustic communication and/or by the general stress of noise exposure.
Neophobia in 10 ungulate species—a comparative approach
The hypothesis that larger group size predicts lower levels of neophobia is supported, and ungulates are confirmed as a highly promising taxon to study animal behavior and cognition with a comparative perspective.


Captive European Starlings (Sturnus vulgaris) in Breeding Condition Show an Increased Cardiovascular Stress Response to Intruders
Male starlings in breeding condition, therefore, demonstrate an increased sensitivity to additional conspecifics, suggesting that a higher tolerance for intrusion may facilitate flocking behavior, while a lower tolerance may aid in territoriality.
Influence of habitat and season on foraging flock composition in the European Starling (Sturnus vulgaris)
Although flock size was influenced by both season and habitat, it varied relatively less within seasons (across habitats); however, for starlings the activities associated with seasonal events of the annual cycle were a major influence on patterns of social foraging.
Interactions of corticosterone with feeding, activity and metabolism in passerine birds
In White-crowned Sparrows, exogenous B substantially reduced overnight metabolic expenditure by reducing the frequency and amplitude of arousal bouts during the night and, possibly, insurance that the individual will retain sufficient resources to seek food the following day.
Foraging Behavior of the Starling (Sturnus vulgaris) in Maryland
A study designed to provide baseline information on the foraging behaviors of this species throughout a year, as well as a more detailed analysis of foraging strategies of Starling flocks under various environmental conditions, and introduces a technique, the fixed grid, which appears generally useful for delineating the foragers of open-ground feeders.
The Effect of Social Facilitation and Social Dominance on Foraging Success of Budgerigars in an Unfamiliar Environment
High status is definitely an advantage, while low status adds some costs to individuals, Nevertheless, low-ranking birds compensate for this through enhanced foraging, because of social facilitation.
Neophobia when feeding alone or in flocks in zebra finches, Taeniopygia guttata
Abstract Abstract. Differences in the feeding behaviour of solitary and groups of three (flocks) adult male zebra finches were investigated. Neophobia (fear and avoidance of new things) was induced
Daily and seasonal variation in response to stress in captive starlings (Sturnus vulgaris): glucose.
Although stress- induced glucose levels showed no circadiel rhythm, the stress-induced elevation of glucose above baseline showed a significant daily rhythm, indicating that stress elevated plasma glucose levels only during the scotophase in all three seasons.