Brood defence in a precocial species: variations in the distraction displays of red grouse, Lagopus lagopus scoticus

@article{Hudson1990BroodDI,
  title={Brood defence in a precocial species: variations in the distraction displays of red grouse, Lagopus lagopus scoticus
},
  author={Peter J. Hudson and David Newborn},
  journal={Animal Behaviour},
  year={1990},
  volume={40},
  pages={254-261}
}
Clutch defense by male and female Willow Ptarmigan Lagopus lagopus
TLDR
It is suggested that defense by females is related to the value of the present brood, weighed against the female's body condition, and that males do not fine-tune their level of defense to the potential contribution of offspring to the parents' reproductive success.
The effect of manipulated brood size on parental defence in a precocial bird, the Willow Ptarmigan
TLDR
Offspring number was manipulated in Willow Ptarmigan Lrzgopus lagopus to determine the effect of brood size on parental effort in defence of young and supports theoretical models which predict that if the young are able to disperse, patterns of defence will be different in precocial birds from that in fish or altricial birds.
Nest Crypsis, Reproductive Value of a Clutch and Escape Decisions in Incubating Female Mallards Anas platyrhynchos
TLDR
It is argued that shorter flying distances from densely covered sites might be maladaptive in areas where a predator's ability to detect incubating female does not rely on visual cues of nests, and that vegetation may act as a protective cover for incubatingfemale.
Stickleback distraction displays: sexual or foraging deception against egg cannibalism?
TLDR
Three-spined stickleback males guarding nests containing eggs were tested for their use of distraction displays against all-male, all-female and mixed male and female conspecific intruder groups, suggesting that the display is a foraging rather than a sexual deception.
Behavioural Interactions between Hen Harriers and Their Moorland Prey
TLDR
Observations of harriers hunting and at the nest indicated that once they had caught a grouse chick they rarely returned to the same brood to catch another, and increasing grouse density resulted in harriers spending less time attacking each brood.
Distraction Displays in Meadow Pipit (Anthus pratensis) Females in Central and Northern Europe
TLDR
It is found that flushing and settling distances of pipit females decreased with increasing intensity of display both in the Central and the Northern Europe locations, and the level of risk taken was not significantly dependent on the air temperature, age of brood and brood size in both study areas.
Injury feigning in the Savanna Nightjar: a test of the vulnerability and brood value hypotheses
TLDR
The vulnerability and brood value hypotheses were supported and the intensity of injury-feigning behavior did not linearly increase with nestling age and brood size; thus, the brood value hypothesis was not supported.
Insights into population ecology from long-term studies of red grouse Lagopus lagopus scoticus.
TLDR
Red grouse studies have had an important impact on the field of population ecology, in particular through highlighting the impact of parasites on populations; the role of intrinsic mechanisms in cyclic dynamics and the need to consider multiple, interacting mechanisms.
Age‐specific patterns of reproduction in White‐tailed and Willow Ptarmigan Lagopus leucurus and L. lagopus
TLDR
It appears that parental experience can compensate for reduced physical ability to produce eggs in White-tailed Ptarmigan, and general support for the constraint hypothesis of reproductive performance is provided.
Defending the Weak: Parental Defense Peaks When Chick Vulnerability is Greatest in the Herring Gull (Larus argentatus)
TLDR
It is shown that parents are most defensive when chicks are most vulnerable and that adults optimize nest defense behaviors in a way that maximizes their fitness.
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On tente de preciser la strategie de recherche manifestee par le predateur (Buteo buteo par exemple) en relation avec la dispersion de la proie et l'on resume les donnees sur l'existence des
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