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Individual-level diet variation in four species of Brazilian frogs
(WILEY-BLACKWELL PUBLISHING, INC, 2009)
Many natural populations exploiting a wide range of resources are actually composed of relatively specialized individuals. This interindividual variation is thought to be a consequence of the invasion of `empty` niches in ...
Resistance to Centaurea solstitialis invasion from annual and perennial grasses in California and Argentina
(Springer, 2011-10)
A common explanation for Centaurea solstitialis invasion in California is that it occupies an "empty niche" created by the replacement of native perennial grasses by exotic annual grasses and concomitant increases in soil ...
Genetic differentiation of Rosa rubiginosa L. in two different Argentinean ecoregions
(Springer Wien, 2009-07-03)
We analyzed genetic differentiation of Rosa rubiginosa by RAPD from populations growing in two Argentinean ecoregions, Chaco Serrano and Patagonian Steppe. Leaf material was collected during the spring and summer of 2006. ...
Efeito do uso do solo na diversidade e na morfometria de besouros escarabeíneos
(2018)
A heterogeneidade do hábitat está associada a uma maior oferta de recursos e condições, o que permite a expansão do nicho das espécies, promovendo a coexistência e acarretando em comunidades mais ricas e em uma maior ...