Experimental evidence of the territorial defense, hypothesis in insular Blue Tits

@article{Perret2005ExperimentalEO,
  title={Experimental evidence of the territorial defense, hypothesis in insular Blue Tits},
  author={Philippe Perret and Jacques Blondel},
  journal={Experientia},
  year={2005},
  volume={49},
  pages={94-98}
}
Many insular vertebrates have unusually high population densities and are characterized by behavioural shifts including reduced territory size and reduced situation-specific aggressiveness. Compared to their mainland counterparts, Blue Tits on the island of Corsica exhibit many traits that fit the trends observed in crowded insular populations. We demonstrate from behavioural observations in aviaries and from hormone measurements that Corsican its are less aggressive than mainland ones. These… 
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References

SHOWING 1-10 OF 15 REFERENCES
The Territorial Defense Hypothesis and the Ecology of Insular Vertebrates
TLDR
The suite of ecological and behavioral traits exhibited by insular territorial vertebrates can best be explained by three factors operating in concert: higher available resource densities, higher defense costs, and (sometimes) a reallocation of resources to produce young that are more competitive.
Low fecundity insular blue tits do not survive better as adults than high fecundity mainland ones
TLDR
Prediction of higher adult survival rates of the blue tit Parus caeruleus L. on Corsica, where clutch size is 27% lower than in a habitat on the mainland, has been tested from capture-recapture studies using models which include both survival and recapture probabilities.
On the genetical basis of the laying‐date in an island population of blue tits
TLDR
It is concluded that the difference in laying‐date between the two samples has a genetic basis and the adaptation to each particular set of environmental conditions is discussed.
Genetic variation in the timing of reproduction in the Great Tit
TLDR
The conclusion is reached that the population mean might change with rates of up to one week per five generations, which is approximately a decade.
Feeding ecology and life history variation of the blue tit in Mediterranean deciduous and sclerophyllous habitats
SummaryHigh variation in laying date and clutch size of the blue tit between a Mediterranean mixed habitat on the mainland, southern France, and a sclerophyllous habitat on the island of Corsica is
Simple Models of Optimal Feeding-Territory Size: A Reconciliation
  • T. Schoener
  • Environmental Science
    The American Naturalist
  • 1983
TLDR
How optimal territory size changes with changes in food density and intruder pressure is in theory complex and the qualitative effect of environmental changes will be indeterminate without detailed specification of the functions describing territorial costs and benefits.
Bird Species Impoverishment, Niche Expansion, and Density Inflation in Mediterranean Island Habitats
The causes and consequences of three classical features of insular faunas, namely species depauperization, increased population density, and increased niche breadth, were investigated by comparing
Hormones and behaviour: A joint examination of studies on seasonal variation in song production and plasma levels of testosterone in the Great TitParus major
The annual cycle of song activity according toAlexander (1935) and data compiled byBezzel (unpublished data) are compared with the annual course of testosterone plasma levels in free-living male
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