Results 11 to 20 of about 149 (82)

Environmental and human factors shape the trophic ecology of a widespread marine predator. [PDF]

J Anim Ecol
Our study reveals how environmental factors and fishing pressure influence swordfish diet, highlighting trophic shifts under future climate scenarios. We provide a novel framework to strengthen our ability to plan for and manage the redistribution of species under global change ensuring that the energetic needs of predators are met.
Fernández-Corredor E, Fuster-Alonso A, Ramírez F, Giménez J, García-Barcelona S, Macías D, Coll M, Navarro J.   +7 more
europepmc   +2 more sources

Metabarcoding: una herramienta prometedora para el estudio de la ecología trófica de peces mexicanos

Revista Mexicana de Biodiversidad, 2023
El papel de los peces en la dinámica trófica de los ecosistemas acuáticos se ha estudiado usando diferentes métodos que permiten determinar su dieta y posición trófica (inspección visual del contenido estomacal y heces, isótopos estables, secuenciación ...
Víctor Julio Piñeros, Nancy Calderón-Cortés   +1 more
doaj   +1 more source

Partición del nicho trófico entre Austrofundulus guajira y Rachovia hummelincki (Cyprinodontiformes: Rivulidae) en humedales temporales del norte de Colombia

Ecología Austral, 2023
En este estudio se evaluó la ecología trófica de dos especies de peces anuales: Austrofundulus guajira y Rachovia hummelincki, en humedales temporales del norte de Colombia.
Dayana V. Pacheco, Cesar E. Tamaris Turizo, Pedro Eslava-Eljaiek   +2 more
doaj   +1 more source

Regional economic resilience, trophic characteristics, and ecological analogies

Papers in Regional Science, Volume 102, Issue 6, Page 1127-1144, December 2023., 2023
Abstract Works on regional resilience have at times borrowed from the engineering and ecological framing of system resilience. In ecological contexts, system resilience is rooted in network structure and its characteristics. Here, we empirically investigate the relationship between regional economic resilience and regional trophic characteristics ...
Hadi Arbabi, Giuliano Punzo
wiley   +1 more source

Shedding light on trophic interactions: A field experiment on the effect of human population between latitudes on herbivory and predation patterns

Ecology and Evolution, Volume 13, Issue 9, September 2023., 2023
This study tests how human pressure affects trophic interactions at different latitudes, being the first to demonstrate experimentally the opposite effects of human presence on trophic interactions between latitudes. Abstract Interactions between species within an ecosystem (e.g.
Inés María Alonso‐Crespo, Juan Antonio Hernández‐Agüero   +1 more
wiley   +1 more source

Does invasion by armored catfish shift trophic ecology of native fishes? Evidence from stable isotope analysis

Ecology, Volume 104, Issue 5, May 2023., 2023
Abstract Popular as aquarium fish, armored catfishes from South America (Pterygoplichthys spp.) have been introduced and become invasive in tropical and subtropical regions worldwide. These ecosystem engineers can deplete basal resources (e.g., periphyton and detritus), with potential negative effects for native fauna. We studied the trophic ecology of
Yasmín Quintana, Friedrich Wolfgang Keppeler, Kirk O. Winemiller   +2 more
wiley   +1 more source

Taste for pollen comes in different shapes: Consumption by tadpoles from three divergent ecomorphotypes

Journal of Zoology, Volume 320, Issue 1, Page 42-52, May 2023., 2023
We studied pollen consumption and breakage of pollen grains by tadpoles of three different ecomorphotypes likely to influence ease of access to different feeding microhabitats. We found tadpoles adapted to feed on the water surface (where pollen is first available to aquatic food webs) to eat more pollen and break relatively more grains, which is ...
J. S. Kloh, C. C. Figueredo, D. B. Provete, P. C. Eterovick   +3 more
wiley   +1 more source

Ecología trófica de la Garza blanca Ardea alba (Pelecaniformes: Ardeidae) en un humedal del río Paraná, Argentina

Cuadernos de investigación UNED, 2013
Se estudió la ecología trófica de la Garza blanca (Ardea alba) mediante el análisis del contenido estomacal de 38 individuos capturados entre 1990 y 1993 en un humedal del río Paraná, Argentina.
Rodrigo Ezequiel Lorenzón, Ana Laura Ronchi Virgolini, Adolfo Héctor Beltzer   +2 more
doaj   +1 more source

Large‐scale movement patterns in a social vulture are influenced by seasonality, sex, and breeding region

Ecology and Evolution, Volume 13, Issue 2, February 2023., 2023
Griffon vulture home‐range sizes and home‐range fidelity are affected by seasonality, sex, and breeding region. Vultures tend to move more during spring and summer, and females showed higher home‐range sizes than males, but lower home‐range fidelity.
Jon Morant, Eneko Arrondo, José Antonio Sánchez‐Zapata, José Antonio Donázar, Ainara Cortés‐Avizanda, Manuel De La Riva, Guillermo Blanco, Félix Martínez, Juan Oltra, Martina Carrete, Antoni Margalida, Pilar Oliva‐Vidal, José Maria Martínez, David Serrano, Juan Manuel Pérez‐García   +14 more
wiley   +1 more source

Perspectivas de la Ecología Molecular en un país megadiverso

Revista Mexicana de Biodiversidad, 2017
Se presenta una revisión de las investigaciones en el campo de la Ecología Molecular en México. Entre 1990 y 2016 se identificaron 656 artículos científicos relacionados. Los temas mejor representados son la genética de poblaciones (35.3% de los estudios)
Hernando Rodríguez-Correa, Antonio González-Rodríguez, Ken Oyama   +2 more
doaj   +1 more source