Results 31 to 40 of about 89,819 (287)

Nueva especie del género Arctosa (Araneae, Lycosidae) del sur de Brazil

open access: yesRevista Peruana de Biología, 2008
Se describe e ilustra una nueva especie del género Arctosa C. L. a Koch, 1848, en base a material procedente de Sapiranga, sur del Brasil. Los miembros de este género por lo general excavan refugios pequeños en los bordes arenosos de los lagos, sin ...
Estevam Luís Cruz da Silva   +1 more
doaj   +1 more source

Changes in the carbon balance of tropical forest: evidence from long-term plots [PDF]

open access: yes, 1998
The role of the world’s forests as a “sink” for atmospheric carbon dioxide is the subject of active debate. Long-term monitoring of plots in mature humid tropical forests concentrated in South America revealed that biomass gain by tree growth exceeded ...
Brown, S.   +10 more
core   +2 more sources

A comprehensive guide to the Argentinian case-bearer beetle fauna (Coleoptera: Chrysomelidae: Camptosomata) [PDF]

open access: yes, 2017
Knowledge of Argentinian Camptosomata has largely remained static for the last 60 years since the last publication by Francisco de Asis Monrós in the 1950’s.
Agrain, Federico Alejandro   +4 more
core   +6 more sources

Immature argasid ticks: diagnosis and keys for Neotropical region [PDF]

open access: yesRevista Brasileira de Parasitologia Veterinária, 2013
Many argasid tick species are known only through their larval descriptions, in which the chaetotaxy, together with other external morphological characteristics, has been used to separate genera and species. However, the illustrations of these features are based on optical microscopy alone and many of these features are not clearly defined.
Barros-Battesti, Darci Moraes   +7 more
openaire   +5 more sources

Redescription of Hemileius suramericanus (Acari, Oribatida, Scheloribatidae) with comments about Neotropical congeneric species [PDF]

open access: yes, 2014
This paper represents the first redescription of Hemileius suramericanus (Hammer, 1958) (Oribatida, Scheloribatidae). Morphological and chaetotactic details are added to original Hammer's description.
Fredes, Natalia   +1 more
core   +1 more source

Inventario de avifauna del norte de Entre Ríos, Argentina: registros notables y perspectivas de conservación [PDF]

open access: yes, 2018
Biodiversity inventories remain fundamental tools for biodiversity conservation. Neotropical biota has poor faunal inventories. In Argentina, the avifauna of the province of Entre Ríos is still not well known.
Dardanelli, Sebastián   +2 more
core   +2 more sources

Rhinoleucophenga joaquina sp. nov. (Diptera: Drosophilidae) from the Neotropical region [PDF]

open access: yesNeotropical Entomology, 2009
The genus Rhinoleucophenga Hendel comprises 18 nominal species and has a Neotropical and Nearctic distribution. A new species was found in a collection in Florianópolis, SC, Brazil, and is described as Rhinoleucophenga joaquina sp. nov. The specimens found were reared from flowers of Dyckia encholirioides (Bromeliaceae), collected in a region of ...
Schmitz, Hermes J   +2 more
openaire   +5 more sources

Morphological and molecular characterization of Cosmocercoides amapari n. sp. (Nematoda: Cosmocercidae), parasitic in hylid frogs from the Brazilian Amazon

open access: yesParasitology, 2023
Cosmocercoides Wilkie, 1930 are gastrointestinal parasites commonly found in amphibians and reptiles, with 4 species reported from the Neotropical region. In the present study, a new species of Cosmocercoides, namely Cosmocercoides amapari n. sp.
Gabriel Lima Rebêlo   +8 more
doaj   +1 more source

Genomic variation in a widespread Neotropical bird (Xenops minutus) reveals divergence, population expansion, and gene flow [PDF]

open access: yes, 2014
Elucidating the demographic and phylogeographic histories of species provides insight into the processes responsible for generating biological diversity, and genomic datasets are now permitting the estimation of histories and demographic parameters with ...
Brumfield, Robb T., Harvey, Michael G.
core   +3 more sources

Effects of Pleistocene climate changes on species ranges and evolutionary processes in the Neotropical Atlantic Forest [PDF]

open access: yes, 2016
The effects of global glaciations on the distribution of organisms is an essential element of many diversification models. However, the empirical evidence supporting this idea is mixed, in particular with respect to explaining tropical forest evolution ...
Cabanne, Gustavo Sebastián   +6 more
core   +2 more sources

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