Results 141 to 150 of about 3,436,321 (270)
Odonata de los Esteros del Iberá (Corrientes, Argentina): inventario preliminar y biodiversidad [PDF]
A preliminary inventory of the Odonata from Iberá Wetlands and their area of influence (Corrientes, Argentina) is presented. Different kinds of environments were surveyed in seven localities.
Garré, Analía +7 more
core +1 more source
Macro-Climatic Distribution Limits Show Both Niche Expansion and Niche Specialization among C4 Panicoids [PDF]
Grasses are ancestrally tropical understory species whose current dominance in warm open habitats is linked to the evolution of C4 photosynthesis. C4 grasses maintain high rates of photosynthesis in warm and water stressed environments, and the syndrome ...
A López +73 more
core +3 more sources
Sexual cannibalism (SC), where one mating partner consumes the other in the context of mating, is especially prevalent among spiders. However, the evolution of SC in spiders is still not fully understood. We review key hypotheses for SC and explore how female‐initiated SC has driven the evolution of various male counter‐adaptations to mitigate its ...
Simona Kralj‐Fišer +3 more
wiley +1 more source
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez +4 more
wiley +1 more source
La medición ha sido considerada un requisito imprescindible en la actividad científica, dota de rigurosidad y refleja la búsqueda de exactitud en los procesos investigativos.
Eutimio Mejía Soto +2 more
doaj
O objetivo deste trabalho foi avaliar quantitativamente e qualitativamente a utilização de fertilizantes, corretivos e irrigação bem como as práticas de manejo de pastagens. Foi aplicado um questionário junto a 232 pecuaristas e técnicos relacionados à pecuária para levantar o grau de utilização de técnicas de conservação e fertilidade do solo ...
Alberto Carlos de Campos Bernardi +4 more
openaire +5 more sources
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic +10 more
wiley +1 more source
Stable Isotope Analysis as a Tool to Prevent Illicit Wildlife Trade of Songbirds in Brazil
Feather isotopes provide clear differences between wild and captive songbirds in Brazil. Combining multiple isotopes improved classification accuracy and revealed individuals falsely declared as captive‐bred. These results demonstrate the potential of isotope analysis to detect wildlife laundering in the bird trade.
Luiza Brasileiro +4 more
wiley +1 more source
Dois experimentos foram conduzidos na Unidade de Pesquisa e Desenvolvimento de Gália-SP, nos anos de 2001 e 2002, em ambientes distintos, com objetivo de avaliar o desempenho biológico e produtivo do bicho-da-seda, em quinto ínstar, quando alimentado com dois cultivares de amoreira (IZ 13/6 e IZ 40), fornecidos em duas formas de ramos (inteiros e ...
Antonio José Porto +2 more
openaire +7 more sources
We assess the effect of sanitation felling performed in 2022 in North‐Eastern Italy on bark beetle damage that occurred in 2023 across eight spruce forest types, as evaluated using multispectral satellite imagery. Bark beetle damage was reduced only at very high or very low sanitation felling rates.
Aurora Bozzini +5 more
wiley +1 more source

