Search Results - "Iribarne, Oscar O."

Network analysis suggests changes in food web stability produced by bottom trawl fishery in Patagonia by Funes, Manuela, Saravia, Leonardo A., Cordone, Georgina, Iribarne, Oscar O., Galván, David E.

“…Demersal fisheries are one of the top anthropic stressors in marine environments. In the long term, some species are more vulnerable to fishery impacts than…”
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Mollusks as ecosystem engineers: the role of shell production in aquatic habitats by Gutiérrez, Jorge L., Jones, Clive G., Strayer, David L., Iribarne, Oscar O.

“…Mollusk shells are abundant, persistent, ubiquitous physical structures in aquatic habitats. Using an ecosystem engineering perspective, we identify general…”
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Macro benthic community assemblage before and after the 2007 tsunami and earthquake at Paracas Bay, Peru by Lomovasky, Betina J., Firstater, Fausto N., Salazar, Alex Gamarra, Mendo, Jaime, Iribarne, Oscar O.

“…Macrobenthic soft bottom community assemblages were studied from December 2006 to December 2007 at Paracas Bay (Atenas Beach, 13°45' S, 76°17' W, Peru),…”
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Trophic relationships between a Patagonian gastropod and its epibiotic anemone revealed by using stable isotopes and direct observations by Zabala, Soledad, Bigatti, Gregorio, Botto, Florencia, Iribarne, Oscar O., Galván, David E.

“…The carnivorous snail Adelomelon ancilla usually carries, attached to its shell, the anemone Antholoba achates , which also lives attached to hard substrates…”
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Hood-building dynamics and mating mode in the temperate fiddler crab Uca uruguayensis Nobili, 1901 by Ribeiro, Pablo D, Christy, John H, Nuñez, Jesús D, Iribarne, Oscar O

“…Courting males of 18 species of fiddler crabs (Uca Leach, 1814) are known to build mud or sand structures at the entrances of their burrows. Females orient to…”
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Reciprocal facilitation between ants and small mammals in tidal marshes by Canepuccia, Alejandro D., Hidalgo, Fernando J., Fanjul, Eugenia, Iribarne, Oscar O.

“…The role of facilitation in shaping natural communities has primarily been studied in the context of plant assemblages, while its relevance for mobile animals…”
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Global distribution and richness of terrestrial mammals in tidal marshes by Canepuccia, Alejandro D., Fanjul, María Sol, Iribarne, Oscar O.

“…Aim Understanding the determinants of species distribution and richness is key to explaining global ecological patterns. We examined the current knowledge…”
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Marine fronts are important fishing areas for demersal species at the Argentine Sea (Southwest Atlantic Ocean) by Alemany, Daniela, Acha, Eduardo M., Iribarne, Oscar O.

“…The high primary and secondary production associated with frontal systems attract a diversity of organisms due to high prey availability; this is why a strong…”
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The Intertidal Burrowing Crab Neohelice (=Chasmagnathus) granulata Positively Affects Foraging of Rodents in South Western Atlantic Salt Marshes by Canepuccia, Alejandro D., Fanjul, Maria S., Fanjul, Eugenia, Botto, Florencia, Iribarne, Oscar O.

“…The role of positive and indirect interactions is often crucial in communities with intense abiotic stress such as salt marshes. The burrowing crab, Neohelice…”
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Trophic niche changes during settlement in the Argentine hake Merluccius hubbsi reveal the importance of pelagic food post metamorphosis by Botto, Florencia, Gaitán, Esteban, Iribarne, Oscar O., Acha, E. Marcelo

“…Among those factors that determine the success of a fish cohort, trophic interactions play a key role, especially during the larval and juvenile stages. The…”
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Influence of Grasshopper Herbivory on Nitrogen Cycling in Northern Gulf of Mexico Black Needlerush Salt Marshes by Montemayor, Diana I., Sparks, Eric L., Iribarne, Oscar O., Cebrian, Just

“…Herbivory is a common process in salt marshes. However, the direct impact of marsh herbivory on nutrient cycling in this ecosystem is poorly understood. Using…”
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Effects of Spartina Wrack on Surface-Active Arthropod Assemblage Under Different Environmental Contexts in Southwest Atlantic Salt Marshes by Montemayor, Diana I., Canepuccia, Alejandro D., Farina, Juan, Addino, Mariana, Valiñas, Macarena, Iribarne, Oscar O.

“…Large amounts of tidally accumulated detritus (i.e., wrack) are an important source of disturbance affecting different abiotic and biotic characteristics in…”
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Distribution and intensity of bottom trawl fisheries in the Patagonian Shelf Large Marine Ecosystem and its relationship with marine fronts by Alemany, Daniela, Acha, Eduardo M, Iribarne, Oscar O

“…Trawling is a major concern worldwide and there is considerable debate about its impact on marine ecosystems. The Patagonian Shelf Large Marine Ecosystem…”
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Coupling between microphytobenthic biomass and fiddler crab feeding by Ribeiro, Pablo D., Iribarne, Oscar O.

“…Among the organic matter ingested by fiddler crabs, microphytobenthos is of fundamental importance because it is their main N source. Microphytobenthos…”
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Predation and interaction strength of octopuses and sea stars on different functional groups of the rocky intertidal shores of the Patagonian coast by Storero, Lorena P., Ocampo Reinaldo, Matías, Narvarte, Maite A., Iribarne, Oscar O.

“…Predation is one of the main structuring forces in rocky intertidal communities, though with an effect depending on the environmental context and conditions…”
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Temporal variation in positive and negative interactions between marsh herbivores mediated by changes in plant traits by Canepuccia, Alejandro D., Alemany, Daniela, Vidal, Esteban Espinosa, Alvarez, M. Fernanda, Iribarne, Oscar O.

“…Studies on bidirectional benefactor−beneficiary interactions between organisms have generally neglected the importance of this feedback in trophic levels other…”
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Density affects mating mode and large male mating advantage in a fiddler crab by Ribeiro, Pablo D, Daleo, Pedro, Iribarne, Oscar O

“…Fiddler crabs show two different mating modes: either females search and crabs mate underground in male burrows, or males search and crabs mate on the surface…”
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Aboveground Biomass Patterns of Dominant Spartina Species and Their Relationship with Selected Abiotic Variables in Argentinean SW Atlantic Marshes by Montemayor, Diana I, Canepuccia, Alejandro D, Pascual, Jesus, Iribarne, Oscar O

“…Salt marsh zonation patterns generate different abiotic and biotic conditions that can accentuate species inherent differences in primary production and…”
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Effects of two estuarine intertidal polychaetes on infaunal assemblages and organic matter under contrasting crab bioturbation activity by Alvarez, M. Fernanda, Bazterrica, M. Cielo, Fanjul, Eugenia, Addino, Mariana S., Valiñas, Macarena S., Iribarne, Oscar O., Botto, Florencia

“…Polychaetes and burrowing crabs are widely distributed in intertidal soft bottom environments, playing an important role in structuring infaunal assemblages…”
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Cordgrass canopy elicits weak effects on sediment properties and microphytobenthic abundance in a harsh environment by Firstater, Fausto N., Narvarte, Maite, Alvarez, M. Fernanda, Fanjul, M. Eugenia, Iribarne, Oscar O.

“…The magnitude of the outcome of ecosystem engineering is context-dependent; as environmental stresses increase, habitat amelioration by ecosystem engineers…”
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