Results 21 to 30 of about 627,579 (165)

Nuevo registro de Lagodon rhomboides (Pisciformes: Sparidae) como hospedero de Cymothoa excisa (Isopoda: Cymothoidae) en la costa noroeste de la península de Yucatán

open access: yesRevista Mexicana de Biodiversidad, 2015
Se registra por primera vez la incidencia del isópodo Cymothoa excisa como parásito del pez sargoLagodon rhomboides y se muestra la influencia de parasitismo en el crecimiento de L.
José Luis Bonilla-Gómez   +3 more
doaj   +1 more source

Evaluating the empirical basis for threat attribution in the IUCN Red List

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Understanding the impacts of different threats on species is key to successful conservation interventions and policies. The International Union for Conservation of Nature (IUCN) assesses threats to species, and the organization's Red List of Threatened Species is a key conservation tool.
Ena Humphries   +5 more
wiley   +1 more source

Panama Canal expansion and shifts in fishing practices: A social‐ecological network approach

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1520-1532, May 2026.
Abstract Species introductions have spiked over the past two centuries due to globalization. These introductions impact ecosystems, but may also have long‐term implications for human communities. In one of the world's hubs for global shipping, the Panama Canal, a recent canal expansion has coincided with an increase in marine fishes entering the ...
Michelle Hübel   +10 more
wiley   +1 more source

Implications of differences between temperate and tropical freshwater ecosystems for the ecological risk assessment of pesticides [PDF]

open access: yes, 2010
Despite considerable increased pesticide use over the past decades, little research has been done into their fate and effects in surface waters in tropical regions.
Brink, P.J., van den, Daam, M.A.
core   +1 more source

Morfogeometría de los peces del género Hyphessobrycon (Characiformes: Characidae), grupo heterorhabdus, en Venezuela

open access: yesRevista de Biología Tropical, 2010
El género Hyphessobrycon es uno de los más numerosos y morfológicamente complejos de la familia Characidae, incluye 122 especies válidas, de las cuales 17 están en Venezuela.
Carlos A García-Alzate   +2 more
doaj   +2 more sources

Wide variation in hydraulic safety margins across and within southern Amazon forests

open access: yesJournal of Ecology, Volume 114, Issue 5, May 2026.
Site‐specific conditions and species identity were the main drivers of variation in Ψdry and HSM50 in southern Amazonian trees, but played a weaker role in explaining Ψ50. Ψpredawn strongly predicted HSM50. Across the Amazon, Ψ50_CWM and Ψdry_CWM became more negative with increasing MCWD, whereas HSM50_CWM showed no significant relationship with MCWD ...
Raiane Gonçalves Beú   +21 more
wiley   +1 more source

Biología alimentaria y reproductiva de Farlowella vittata (Siluriformes: Loricariidae) en la cuenca del río Güejar, Orinoquía, Colombia

open access: yesRevista de Biología Tropical, 2012
Los peces de quebradas neotropicales conviven con una considerable variación espacial y temporal de sus alimentos. La disponibilidad de estos alimentos depende de diferentes factores tales como la morfología de los canales, la descarga, atributos físico ...
Carlos A. García-Alzate   +2 more
doaj  

Modelo de distribución geográfica del pez Coryphaena hippurus (Perciformes: Coryphaenidae) según el cambio climático en el Pacífico Oriental Tropical

open access: yesRevista de Biología Tropical
Introducción: Coryphaena hippurus es una especie migratoria de interés comercial, que se encuentra en ambientes tropicales y subtropicales, prefiriendo zonas con un rango de temperatura entre 21 y 30 °C y salinidad cercana a 31 ppt. Aunque la tendencia poblacional del dorado es estable, la pesquería de este recurso está aumentando y ocupa importantes ...
Estefania Isaza-Toro   +2 more
openaire   +2 more sources

Exploring ecohydrology through the lens of local fishers in the Bolivian Amazon

open access: yesEcosphere, Volume 17, Issue 4, April 2026.
Abstract The natural flow regimes of Andean‐Amazon tributaries play a vital role in sustaining their rich biodiversity and productive local fisheries, but ongoing and proposed alteration of river flow regimes by large dams threatens to negatively impact river ecosystems. Despite its importance, our understanding of how hydrologic variability influences
Lina G. Terrazas‐Villarroel   +4 more
wiley   +1 more source

Variación morfológica de los peces Hemibrycon boquiae y Hemibrycon rafaelense (Characiformes: Characidae) en el Río Cauca, Colombia

open access: yesRevista de Biología Tropical, 2009
Analizamos la variación morfológica y osteológica en Hemibrycon boquiae y H. rafaelense en la cuenca del río Cauca. Los análisis multivariados determinan poblaciones de H.
César Román-Valencia   +2 more
doaj  

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