منابع مشابه
Ordinations of Habitat Relationships among Breeding Birds
I N an attempt to express habitat relationships in a new way, I have applied two methods of multivariate analysis to a large set of data pertaining to the habitats of 46 species of common breeding birds. The question asked was : How do these species distribute themselves with respect to the structure of the vegetation? This required (1) devising field techniques that would give quantitative mea...
متن کاملThe timing of birds' breeding seasons: a review of experiments that manipulated timing of breeding.
Reproductive success usually declines in the course of the season, which may be a direct effect of breeding time, an effect of quality (individuals with high phenotypic or environmental quality breeding early), or a combination of the two. Being able to distinguish between these possibilities is crucial when trying to understand individual variation in annual routines, for instance when to bree...
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ژورنال
عنوان ژورنال: Rivista Italiana di Ornitologia
سال: 2012
ISSN: 2385-0833,0035-6875
DOI: 10.4081/rio.2011.75