Results 31 to 40 of about 755 (165)

Catfishes of the genus Auchenipterichthys (Osteichthyes: Siluriformes: Auchenipteridae): a revisionary study

Neotropical Ichthyology
The Neotropical auchenipterid catfish genus Auchenipterichthys is reviewed and found to include four species. Auchenipterichthys thoracatus, formerly considered to be widely distributed throughout the Amazon River basin, is found to be restricted to the ...
Carl J. Ferraris Jr., Richard P. Vari, Sandra J. Raredon   +2 more
doaj   +1 more source

New Records of Ephemeroptera from the Colombian Orinoco River Basin of the Meta Department

Revista Colombiana de Entomología, 2017
There is extensive research of the Ephemeroptera communities taxonomy and ecology in the Andean region of Colombia. However, other regions such as the Orinoquia have been insufficiently studied. From this region, in the Meta department, four species have been registered: Varipes lasiobrachius
Salinas-Jiménez, Luis Gonzalo, Rojas-Peña, José Ismael, Osorio-Ramírez, Diana Paola, Caro-Caro, Clara Inés   +3 more
openaire   +3 more sources

The Casiquiare river acts as a corridor between the Amazonas and Orinoco river basins: biogeographic analysis of the genus Cichla [PDF]

Molecular Ecology, 2010
AbstractThe Casiquiare River is a unique biogeographic corridor between the Orinoco and Amazonas basins. We investigated the importance of this connection for Neotropical fishes using peacock cichlids (Cichla spp.) as a model system. We tested whether the Casiquiare provides a conduit for gene flow between contemporary populations, and investigated the
Willis, S. C., Nunes, M., Montaña, C. G., Farias, I. P., Ortí, G., Lovejoy, Nathan R.   +5 more
openaire   +3 more sources

The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study

Neotropical Ichthyology
The catfishes of the subfamily Cetopsinae of the Neotropical family Cetopsidae are revised. Four genera, Cetopsidium new genus, Cetopsis, Denticetopsis, and Paracetopsis Bleeker are recognized as valid. Bathycetopsis, Hemicetopsis, and Pseudocetopsis are
Richard P. Vari, Carl J. Ferraris Jr., Mário C. C. de Pinna   +2 more
doaj   +1 more source

Jaguar Densities and Land Cover Change in a Multi‐Use Landscape: A 10‐Year Comparison in the Colombian Llanos 美洲豹种群密度与复合用地景观下的土地覆被变化:哥伦比亚亚诺斯地区10年比较研究

Wildlife Letters, EarlyView.
We used spatially explicit capture‐recapture to estimate jaguar densities in a private reserve in the Colombian Llanos and quantified land cover change in and around the reserve from 2014 to 2024. Densities increased 22% since 2014, while disturbed land cover increased by 39%–54% around the reserve depending on buffer distance. Our study indicates that
Valeria Boron, Elizabeth Ruiz Elejalde, Cesar Rojano, Jorge Barragan, Angelica Diaz‐Pulido, Laura Miranda, Santiago Chiquito, Matthew Hyde   +7 more
wiley   +1 more source

Understanding Mammalian Habitat Use With a Multi‐Species, Multi‐Scale Approach: The Jaguar Protection Corridor in Guaviare, Colombia

Animal Conservation, EarlyView.
We applied a multi‐scale, multi‐species framework to quantify how landscape structure and human infrastructure influence habitat use across a terrestrial mammal community within a biological corridor in the Colombian Amazon. Forest cover and spatial configuration influenced wildlife habitat use at spatial scales associated with species dispersal ...
Gabriel P. Andrade‐Ponce, Eduardo Molina‐González, Jaime Andrés Cabrera   +2 more
wiley   +1 more source

Surface Freshwater Storage Variations in the Orinoco Floodplains Using Multi-Satellite Observations

Remote Sensing, 2014
Variations in surface water extent and storage are poorly characterized from regional to global scales. In this study, a multi-satellite approach is proposed to estimate the water stored in the floodplains of the Orinoco Basin at a monthly time-scale ...
Frédéric Frappart, Fabrice Papa, Yoann Malbeteau, Juan Gabriel León, Guillaume Ramillien, Catherine Prigent, Lucía Seoane, Frédérique Seyler, Stéphane Calmant   +8 more
doaj   +1 more source

Cryptic diversity and recent diversification in the Pyrrhulina australis species complex (Characiformes, Lebiasinidae) revealed by mitochondrial DNA

Journal of Fish Biology, EarlyView.
Abstract Pyrrhulina australis Eigenmann & Kennedy, 1903, is widely distributed across the main hydrographic basins of South America. The taxonomic integrity of this species is nevertheless challenged by the lack of clear diagnostic characters, its marked geographic variation and the morphological overlap with its congeners. In this context, the present
Taina Barbosa De Souza, Daniela Cristina Ferreira, Hugmar Pains Da Silva, Carolina B. Machado, Claudio Oliveira, André L. Netto‐Ferreira, Paulo C. Venere   +6 more
wiley   +1 more source

Immunogenicity and Protective Efficacy of the First Autogenous Aeromonas hydrophila Vaccine for Piaractus brachypomus

Journal of Fish Diseases, EarlyView.
ABSTRACT Aeromonas hydrophila is a major zoonotic bacterial pathogen responsible for haemorrhagic septicemia, substantial economic losses in aquaculture and increasing antimicrobial resistance among field isolates. It is also one of the main bacterial species associated with mortality outbreaks in pirapitinga, Piaractus brachypomus, culture in the ...
Layana Aparecida Batista Pereira, Juliana do Nascimento Ferreira, Laine Patricia Costa dos Santos, Larissa Andréia Ferreira Sampaio, Igor Bartolomeu Alves de Barros, Elizabeth Gusmão Affonso, Jefferson Yunis‐Aguinaga, Gustavo da Silva Claudiano   +7 more
wiley   +1 more source

Living in the Mycelial World

Topics in Cognitive Science, EarlyView.
Abstract This manuscript documents a systematic ethnomycological analysis of ethnographic archives. Focusing on texts describing human–fungi interactions, I conduct a global, cross‐cultural review of mushroom use, covering 193 societies worldwide. The study reveals diverse mushroom‐related cultural practices, emphasizing the significance of fungi ...
Roope O. Kaaronen
wiley   +1 more source