Publications

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humerus length and foramen magnum area as indicators of size in birds.in a group of birds (passerines and non-passerines) body weight was found to be highly correlated with the length of the humerus and with the area of the foramen magnum. in addition, body weight was highly correlated with humerus length in 58 specimens of streak-necked fly-catcher, mionectes striaticollis, suggesting a possible use of this measurement to estimate body weight of individuals in a single species. body weight was not correlated with foramen magnum area in 25 specimens of savannah sp ...19853993976
seasonal patterns in δ(2) h values of multiple tissues from andean birds provide insights into elevational migration.elevational migration is a widespread phenomenon in tropical avifauna but it is difficult to identify using traditional approaches. hydrogen isotope (δ(2) h) values of precipitation decrease with elevation so δ(2) h analysis of multiple bird tissues with different isotopic incorporation rates may be a reliable method for characterizing seasonal elevational migration. here we compare δ(2) h values in metabolically inert (feathers and claws) and metabolically active (whole blood) tissues to examin ...201627907263
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