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Species richness, range size, and wing development in South American melanopline grasshoppers (Orthoptera, Acrididae)
(Wiley Blackwell Publishing, Inc, 2020-08)
1. Wing development can influence biogeographic patterns, and much debate has been focused on the ecological conditions that favour secondary wing reductions in insects. Although grasshoppers are mostly flight-capable, ...
Functional traits reveal environmental constraints on amphibian community assembly in a subtropical dry forest
(Wiley Blackwell Publishing, Inc, 2018-09)
The relationships between functional traits and environmental gradients are useful to identify different community assembly processes. In this work, we used an approach based on functional traits to analyse if changes in ...
Solvent-based de-emulsification dispersive liquid-liquid microextraction coupled with UPLC-MS/MS for the fast determination of ultratrace levels of nitrated and oxygenated polycyclic aromatic hydrocarbons in environmental samples
(Royal Society of Chemistry, 2018-02)
In this study, a new solvent-based de-emulsification dispersive liquid-liquid microextraction strategy followed by liquid chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry has been developed ...
Modelling the association between deltamethrin resistance in Triatoma infestans populations of the Argentinian Gran Chaco region with environmental factors
(Elsevier Science, 2019-06)
In Latin America, Triatoma infestans is the main vector of the protozoan Trypanosoma cruzi, causal agent of Chagas disease. This blood-sucking triatomine is widely distributed in the Gran Chaco ecoregion, where chemical ...
Environmental variables for modeling wheat yields in the southwest pampa region of Argentina
(Springer, 2004-05)
Two types of time scales - 10-day intervals (D) and phenological phases (P) - were applied to environmental variables for the development of statistical regression models relating to the southwest pampa region of Argentina, ...
Acinetobacter baumannii NCIMB8209: A rare environmental strain displaying extensive insertion sequence-mediated genome remodeling resulting in the loss of exposed cell structures and defensive mechanisms
(American Society for Microbiology, 2020-07)
Acinetobacter baumannii represents nowadays an important nosocomial pathogen of poorly defined reservoirs outside the clinical setting. Here, we conducted whole-genome sequencing analysis of the Acinetobacter sp. NCIMB8209 ...
Factors that influence the beta-diversity of spider communities in northwestern Argentinean Grasslands
(PeerJ Inc., 2016-04-21)
Beta-diversity, defined as spatial replacement in species composition, is crucial to the understanding of how local communities assemble. These changes can be driven by environmental or geographic factors (such as geographic ...
Different strategies for breaking physical seed dormancy in field conditions in two fruit morphs of Vachellia caven (Fabaceae)
(Cambridge University Press, 2018-03)
Differences in fruit morphology among or within species might indicate differences in other regenerative traits, such as seed dormancy and germination. In species with physical dormancy (PY), environmental conditions are ...
Spatial Variation in Body Size and Wing Dimorphism Correlates with Environmental Conditions in the Grasshopper Dichroplus vittatus (Orthoptera: Acrididae)
(Oxford University Press, 2018-06)
Wing dimorphism occurs widely in insects and involves discontinuous variation in a wide variety of traits involved in fight and reproduction. In the current study, we analyzed the spatial pattern of wing dimorphism and ...
Chironomids as indicators of natural and human impacts in a 700-yr record from the northern Patagonian Andes
(Academic Press Inc Elsevier Science, 2016-09-20)
Chironomid communities were studied in a sediment core collected from Lake Moreno Oeste, located in Nahuel Huapi National Park. A major change in midge assemblages occurred at ∼AD 1760, which was characterized by a decrease ...