Výsledky vyhledávání - "Ricardo Casaux"

First record of White-rumped Sandpiper (Calidris fuscicollis) at Esperanza/Hope Bay, Antarctica

Autor: Mariana A. Juáres, Ricardo Casaux, Marcela Libertelli, Mercedes Santos, Keila E. Hidalgo, Nicolás Ariel Kass, Anahí Mariel Silvestro

Publikováno v: Polar Biology. 44:631-635

The White-rumped Sandpiper (Calidris fuscicollis) (Vieillot 1819) is one of the longest migrating birds that breeds in the high Arctic in Alaska and Canada and spends the post-breeding period in South America. This bird is a frequent vagrant visitor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::831333ae5e015b168dc0fb685c115c22
https://doi.org/10.1007/s00300-021-02828-1

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Akademický článek

Dietary overlap in inshore notothenioid fish from the Danco Coast, western Antarctic Peninsula

Autor: Ricardo Casaux, Esteban Barrera-Oro

Publikováno v: Polar Research, Vol 32, Iss 0, Pp 1-8 (2013)

We carried out a dietary overlap analysis between notothenioid species by examining the stomach contents of more than 900 specimens collected in a fish assemblage at the Danco Coast, western Antarctic Peninsula, in the summer of 2000. Prey reoccurren

Externí odkaz: https://doaj.org/article/b7d6da4058a442e78707e318d6b4ee60

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Size structure of Antarctic krill inferred from samples of Pygoscelid penguin diets and those collected by the commercial krill fishery

Autor: Mercedes Santos, Mariana A. Juáres, Néstor Coria, Marta Gladys Grech, Ricardo Casaux, Javier Negrete, Jazmín Fógel

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

In the Antarctic Peninsula, during the chick-rearing period Adelie (Pygoscelis adeliae) and gentoo (P. papua) penguins feed primarily on Antarctic krill (Euphausia superba), which is also exploited by the commercial fishery. Krill length and proporti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fd8a513157754c532c5809d08e6e830
http://sedici.unlp.edu.ar/handle/10915/132482

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Impact of Chaitén Volcano ashfall on native and exotic fish recovery, recolonization, and abundance

Autor: Ricardo Casaux, Luz Maria Manzo, Cecilia Yanina Di Prinzio, Marta Gladys Grech, Brooke E. Penaluna, María Laura Miserendino

Publikováno v: The Science of the total environment. 752

The effects of volcanic disturbance on aquatic communities and their recovery are poorly studied. To fill this gap, we explored the effects on fish communities in rivers in Argentina of the 2008 eruption of Chaiten Volcano in southern Chile (42.8° l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d35ab100d66c7a54532e17f6d1793f7f
https://pubmed.ncbi.nlm.nih.gov/32890832

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Update of the population size and breeding performance of gentoo penguins (Pygoscelis papua) at Stranger Point/Cabo Funes, South Shetland Islands

Autor: Ayelen Rios, Ricardo Casaux, Mercedes Santos, Martín Castillo, Javier Negrete, Mariana A. Juáres, Néstor Coria

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

The plasticity in the trophic ecology, the breeding phenology, and the low nesting site fidelity would be the reasons why most of the gentoo penguin (Pygoscelis papua) populations breeding in the western Antarctic Peninsula and islands of Scotia Arc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f12482047326b0c6843da83edf9ed8e9
http://sedici.unlp.edu.ar/handle/10915/145052

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Diet overlap among top predators at the South Orkney Islands, Antarctica

Autor: Ricardo Casaux, M. Lila Bertolin

Publikováno v: Polar Biology. 42:371-383

In order to understand interspecific trophic relationships between top predators, we analyzed diet information for nine bird and two seal species collected in the austral summer from 1996 to 2000 at South Orkney Islands. Overall, the diet of most of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::636f07e4abf688e494a0d294ee23c54d
https://doi.org/10.1007/s00300-018-2428-9

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Diet of Adélie penguins (Pygoscelis adeliae) at Stranger Point (25 de Mayo/King George Island, Antarctica) over a 13-year period (2003–2015)

Autor: Ricardo Casaux, G. Ariel Pereira, Mercedes Santos, A. Corbalán, Gabriel Blanco, Pablo J. Perchivale, Mariana A. Juáres, Néstor Coria

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

Knowledge of the feeding ecology of a species at local level is fundamental to determine the relationship between the fluctuations in local marine resources and population dynamics of predators. In this study, we examined the diet of Adélie penguins

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0fb0f00c97a2a49064c773476aefb23
https://doi.org/10.1007/s00300-017-2191-3

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