Results 41 to 50 of about 149 (82)

Ecología trófica de Brycon henni (Pisces: Bryconidae) en afluentes de los Ríos Nare y Guatapé, cuenca del río Magdalena, Colombia

Revista U.D.C.A Actualidad & Divulgación Científica
La comprensión de la ecología trófica de los peces y la forma en que utilizan los recursos en el espacio y en el tiempo es importante para la toma de acciones para su conservación y manejo.
Néstor Javier Mancera-Rodríguez
doaj   +1 more source

Scouts vs. usurpers: alternative foraging strategies facilitate coexistence between neotropical Cathartid vultures

Ibis, Volume 166, Issue 4, Page 1368-1383, October 2024.
Understanding how diverse assemblages of scavengers can coexist on shared ecological resources is a fundamental challenge in community ecology. However, current approaches typically focus on behaviour at carcass provisioning sites, missing how important differences in movement behaviour and foraging strategies can facilitate sympatric species ...
Christopher Beirne, Mark Thomas, Arianna Basto, Eleanor Flatt, Giancarlo Inga Diaz, Diego Rolim Chulla, Flor Perez Mullisaca, Rosio Vega Quispe, Caleb Jonatan Quispe Quispe, Adrian Forsyth, Andrew Whitworth   +10 more
wiley   +1 more source

Leech consumption by Leptodactylus fuscus (Schneider, 1799) (Anura: Leptodactylidae) in Pernambuco, Brazil

Heringeriana
A interação trófica entre anfíbios e sanguessugas é predominantemente parasitária, com as sanguessugas atuando como parasitas em vários estágios de vida dos anuros. A predação de sanguessugas por anuros raramente é documentada.
Natallia Vívian Nascimento da Silva Maia, Maianne Jessica da Silva Santos, Maria Clara Almeida Sá Correia, Ana Beatriz Carvalho Salgado, João Victor Alves de Oliveira, Isabel Gonzalves Velasco   +5 more
doaj   +1 more source

Feeding en route: Prey availability and traits influence prey selection by an avian predator on migration

Journal of Animal Ecology, Volume 93, Issue 9, Page 1176-1191, September 2024.
During fall migration, avivorous raptors and avian prey co‐occur across space and time. We used a novel approach—combining eDNA metabarcoding and eBird data—to investigate predator–prey interactions between an avivorous raptor and co‐occurring avian prey species. This approach revealed prey availability and traits influence raptor‐songbird interactions
Ryan P. Bourbour, Cody M. Aylward, Timothy D. Meehan, Breanna L. Martinico, Mary E. Badger, Alisha M. Goodbla, Allen M. Fish, Teresa E. Ely, Christopher W. Briggs, Elisha M. Hull   +9 more
wiley   +1 more source

Alimentação de Auchenipterichthys punctatus (Siluriformes, Auchenipteridae) em lagos do rio Cuiuni, Amazonas, Brasil [PDF]

Neotropical Biology and Conservation, 2019
Auchenipterichthys punctatus é uma espécie de peixe muito abundante durante o período de águas baixas no rio Cuiuni, sendo objetivo deste estudo investigar a alimentação de A. punctatus em lagos desse rio. O conteúdo estomacal, o grau de repleção, índice
Eletuza Uchôa Farias, Jamerson Aguiar Santos, Sara de Castro Loebens, Hélio Daniel Beltrão, Carlos Edwar de Carvalho Freitas, Kedma Cristine Yamamoto   +5 more
doaj   +3 more sources

Effects of protection and temperature variation on temporal stability in a marine reserve network

Conservation Biology, Volume 38, Issue 3, June 2024.
Abstract Understanding the drivers of ecosystem stability has been a key focus of modern ecology as the impacts of the Anthropocene become more prevalent and extreme. Marine protected areas (MPAs) are tools used globally to promote biodiversity and mediate anthropogenic impacts.
Griffin Srednick, Stephen E. Swearer
wiley   +1 more source

Hábitos alimenticios y migratorios del tiburón blanco Carcharodon carcharias (Lamniformes: Lamnidae) de Isla Guadalupe inferidos por el análisis de isótopos estables de δ15N and δ13C

Revista de Biología Tropical, 2014
La composición isotópica de los tejidos de los depredadores tope en el ambiente marino provee información sobre su ecología trófica y su comportamiento migratorio.
Mario Jaime-Rivera, Javier Caraveo-Patiño, Mauricio Hoyos-Padilla, Felipe Galván-Magaña   +3 more
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Plant phylogenetic diversity influences arthropod communities in tropical forest restoration plots

Biotropica, Volume 56, Issue 3, May 2024.
We assessed the impact of plant phylogenetic diversity on arthropod communities in 12 experimental restoration plots with either high or low plant phylogenetic diversity. Arthropods with different feeding habits (herbivores, predators, pollinators, and detritivores) were collected after 1 and 3 years and were identified as morphospecies or operational ...
Faride Ugalde, Rocío Santos‐Gally, Rubén Pérez‐Ishiwara, Nancy Gálvez‐Reyes, Ana Wegier, Karina Boege   +5 more
wiley   +1 more source

Future climate‐induced distribution shifts in a sexually dimorphic key predator of the Southern Ocean

Global Change Biology, Volume 30, Issue 3, March 2024.
Climate change poses challenges for sexually dimorphic species, such as the Antarctic fur seal, where males are larger than females. By tracking individuals from both sexes, we assessed their responses to current environmental conditions and projected their future responses using various climate models. Findings reveal a sex‐skewed impact: females face
Jazel Ouled‐Cheikh, David March, Renato Borras‐Chavez, Massimiliano Drago, Michael E. Goebel, José M. Fariña, Manel Gazo, Marta Coll, Luis Cardona   +8 more
wiley   +1 more source

Sección especial - El nicho: conceptos y aplicaciones

Ecología Austral, 2005
El nicho es un concepto central en ecología y biología evolutiva. Es difícil pensar en un problema en estas disciplinas que no involu- cre, bajo alguna de sus diversas etiquetas (e.g., especialización, generalismo, especificidad, versatilidad, amplitud ...
Diego P. Vázquez, Marcelo H. Cassini
doaj