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Oliver, T.H., Gillings, S., Girardello, M., Rapacciuolo, G., Brereton, T.M., Siriwardena, G., Roy, D.B., Pywell, R. & Fuller, R.J. 2012. Population density but not ...
Greenwood, J.J.D. & Baillie, S.R. 1991. Effects of density-dependence and weather on population changes of English passerines using a non-experimental paradigm. Ibis ...
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