Results 21 to 30 of about 10,663 (217)

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

Redescription of Odontostilbe pulchra (Gill, 1858) (Teleostei: Characidae: Cheirodontinae), and description of two new species from the río Orinoco basin

Neotropical Ichthyology
Odontostilbe pulchra, previously considered species inquirenda in Cheirodontinae and doubtfully assigned from the río Orinoco basin, is redescribed with the rediscovery of two syntypes. Originally described to the Island of Trinidad, O.
Cristina M. Bührnheim, Luiz R. Malabarba   +1 more
doaj   +1 more source

Moenkhausia hemigrammoides Géry, 1965 (Characidae, Stethaprioninae) in Colombia: new records and comments on morphology [PDF]

Check List, 2019
Moenkhausia hemigrammoides Géry, 1965 was described from Suriname and recently found in the Ariari drainage, part of the Orinoco river basin. Here, we formally report the presence of this species in the Ariari and Inírida drainages ...
Alejandro Méndez-López, Alexander Urbano-Bonilla   +1 more
doaj   +3 more sources

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

Integrated multitissue analysis reveals distinct oxidative stress responses during recovery from cold shock in the Amazonian fish Colossoma macropomum

Journal of Fish Biology, EarlyView.
Abstract Tambaqui (Colossoma macropomum) is a tropical fish widely cultivated in South America. The increasing demand for this species has heightened interest in its cultivation in subtropical regions with greater thermal variability, where cold shock may induce oxidative stress. This study evaluated the effects of cold shock and subsequent recovery on
Naiara Melo, Isaac Konig, Stefania Priscilla de Souza, Maria Fernanda Aquino Freitas, Daniella Aparecida de Jesus Paula, Ronald Kennedy Luz, Priscila Vieira Rosa, Luis David Solis Murgas   +7 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

Molecular diagnosis of the arowanas Osteoglossum ferreirai Kanazawa, 1966 and O. bicirrhossum (Cuvier, 1829) from the Orinoco and Amazon River basins

Neotropical Ichthyology
The arowanas, fishes of Gondwanan origin, are represented in South America by the genus Osteoglossum. All species were initially reported as being exclusive to the Amazon region, with O. ferreirai restricted to the Negro River basin and O. bicirrhosum to
Maria Doris Escobar L., Izeni P. Farias, Donald C. Taphorn B., Miguel Landines, Tomas Hrbek   +4 more
doaj   +1 more source

Chlorophyll Estimation from Multivariate Regression Analysis and Deep Learning Using Remote Sensing Data

Engineering Proceedings, 2022
The Orinoco river is in Venezuela and flows into the Caribbean sea. The chlorophyll concentration in the ocean delta changes due to the dust deposition from the Orinoco river which affects the primary productivity. The wet and dry deposition measurements
Sriniketan Sridhar, Carlos del Castillo, Vidya Manian   +2 more
doaj   +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

Orinoco and Amazon

Eos, Transactions American Geophysical Union, 1984
Although much of the research being done on these rivers is still in its early stages, the misprint in the 1983 AGU Fall Meeting abstracts issue of Eos (November 8, 1983, p. 697) appears to be correct: These rivers are topical as well as tropical. The series of papers by Meade, Nordin, Dunne, and Mertes provided some interesting observations (for ...
openaire   +1 more source