On Bird Species Diversity

TL;DR: In this article, it was shown that although predation may be intense, on its own it cannot explain the differences in the structure of the assemblages close and far from rocky reefs.

TL;DR: Investigation of the relationship of fish α and β diversity along gradients of habitat structural complexity created by aquatic vegetation in the floodplain of Upper Paraná River revealed that α diversity peaked at intermediate levels of habitatStructural complexity where interstitial spaces were numerous but no so small as to limit occupancy by most fishes.

TL;DR: Data on foraminiferal tests from 55 dredge samples of surficial sediments around the Cavalli Islands are analysed by non‐hierarchical classification, principal components, and minimum spanning tree techniques, characterising species of each association by calculating ‘association scores’ for each species.

TL;DR: In this article, the authors identify the main drivers of bird diversity along an elevational gradient spanning 2000 m in the Ecuadorian Andes and simultaneously test the direct and indirect effects of elevation, temperature, precipitation and vegetation structure on overall bird diversity and on frugivorous and insectivorous birds, using structural equation models.

TL;DR: The role of biotic factors in the determination of population densities and population fluctuation of the rice stem borer is considered.

TL;DR: It is suggested that if a really complete faunistic list for a given biotope could be constructed the size distribution by species would approximate the form given by the model.

TL;DR: In el acto de su recepcion como academico de la Real Academia de Ciencias y Artes de Barcelona, Margalef leida la Memoria leida por Ramon Margalfe as mentioned in this paper.

TL;DR: It is surprising that in regeneration studies more use has not been made of chemical agents which have known effects in disengaging developmental processes in embryos, particularly since regenerating amphibian limb and tail tissues.