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New records and range expansion for Paspalum procurrens and P. volcanense in northwestern Argentina and southeastern Bolivia
(Pensoft editor, 2019-12-31)
Paspalum procurrens Quarin and P. volcanense Zuloaga, Morrone & Denham are two rare species of South American grasses inhabiting geographically restricted areas which are exposed to ecological degradation due to landscape ...
Evaluation of the genotoxicity of aqueous extracts of leaves and stems of Dolichandra unguis-cati (L.) L.G. Lohmann (Bignoniaceae) using the Allium cepa test
(Med Crave editor, 2019-07-29)
The province of Misiones is characterized by its great plant diversity and the use of medicinal plants is common, 80% of its boundaries are international, it borders the Republic of Paraguay to the west and the Republic ...
Seed‐dispersal networks are more specialized in the Neotropics than in the Afrotropics
(Wiley-Blackwell Publishing, 2019-01-03)
Aim: Biogeographical comparisons of interaction networks help to elucidate diffeences in ecological communities and ecosystem functioning at large scales.
Neotropical ecosystems have higher diversity and a different ...
Yerba mate (Ilex paraguariensis, A. St.-Hil.) de novo transcriptome assembly based on tissue specific genomic expression profiles
(BioMed Central, 2018-12-07)
Background: The most common infusion in southern Latin-American countries is prepared with dried leaves of Ilex paraguariensis A. St.-Hil., an aboriginal ancestral beverage known for its high polyphenols concentration ...
Population fluctuation of Culicoides insignis Lutz (Diptera: Ceratopogonidae) in Posadas, Misiones, ArgentinaFluctuación poblacional de Culicoides insignis (Diptera: Ceratopogonidae) en Posadas, Misiones, Argentina
(Sociedad Entomológica Argentina, 2018-12-27)
En Argentina, la distribución de la enfermedad del Virus de la Lengua Azul se encuentra restringida al noreste del país. En la región Neotropical el principal vector sería Culicoides insignis Lutz. El objetivo de este ...
Uncovering the evolutionary history of neo-XY sex chromosomes in the grasshopper Ronderosia bergii (Orthoptera, Melanoplinae) through satellite DNA analysis
(BioMed Central, 2018-01-08)
Background Neo-sex chromosome systems arose independently multiple times in evolution, presenting the remarkable characteristic of repetitive DNAs accumulation. Among grasshoppers, occurrence of neo-XY was repeatedly noticed ...
What happened in the South American Gran Chaco? Diversification of the endemic frog genus Lepidobatrachus Budgett, 1899 (Anura: Ceratophryidae)
(Elsevier, 2018)
The Chaco is one the most neglected and least studied regions of the world. This highly-seasonal semiarid biome is an extensive continuous plain without any geographic barrier, and in spite of its high species diversity, ...
Trophic structure of frugivorous bats in the Neotropics : emergent patterns in evolutionary history
(Wiley-Blackwell Publishing, 2018-01-31)
1. Knowing the relative importance of phylogeny in dietary specialisation in frugivorous bats is key to understanding the ecological and evolutionary processes that drove their diversification and to elucidating the ...
When the cure kills—CBD limits biodiversity research : national laws fearing biopiracy squelch taxonomy studies
(American Association for the Advancement of Science, 2018-06-29)
The Convention on Biological Diversity (CBD) commits its 196 nation parties to conserve biological diversity, use its components sustainably, and share fairly and equitably the benefits from the utilization of genetic ...
Hyla prasina Burmeister, 1856 meets the requirements of Article 23.9.1 of the Code for a reversal of precedence over Hyla quoyi Bory de Saint-Vincent, 1828 (Anura, Hylidae)
(Magnolia Press, 2018-07-04)
In a recent work, Ohler and Dubois (2018) discussed the correct application of Article 23.9 of the Code (Anonymous,1999; 2012) and illustrated it with some concrete cases in which the authors considered that the Article ...