Results 61 to 70 of about 2,459 (208)

Disentangling the cause of a catastrophic population decline in a large marine mammal [PDF]

, 2015
Considerable uncertainties often surround the causes of long-term changes in population abundance. One striking example is the precipitous decline of southern sea lions (SSL; Otaria flavescens) at the Falkland Islands, from 80 555 pups in the mid 1930s ...
Arnould, John P. Y., Baylis, Alastair M. M., Christiansen, Fredrik, Hays, Graeme C., Orben, Rachael A., Staniland, Iain J.   +5 more
core   +2 more sources

Uso de Aeronaves Remotamente Pilotadas (RPA) en la estimación de poblaciones de lobos marinos en la Isla Chincha sur - Ica

Industrial Data, 2020
Esta publicación describe el empleo de la tecnología RPA como método complementario durante el censo de lobos marinos chuscos (Otaria flavescens), en la Isla Chincha sur, Ica – Perú, como parte de las actividades programadas por el Instituto del Mar del ...
Nestor Brondi Rueda, Regina Aguilar Arakaki, Jhon Candelario Fano   +2 more
doaj   +1 more source

From mammals back to birds: Host-switch of the acanthocephalan Corynosoma australe from pinnipeds to the Magellanic penguin Spheniscus magellanicus. [PDF]

PLoS ONE, 2017
Trophically-transmitted parasites are regularly exposed to potential new hosts through food web interactions. Successful colonization, or switching, to novel hosts, occur readily when 'donor' and 'target' hosts are phylogenetically related, whereas ...
Jesús Servando Hernández-Orts, Martha Brandão, Simona Georgieva, Juan Antonio Raga, Enrique Alberto Crespo, José Luis Luque, Francisco Javier Aznar   +6 more
doaj   +1 more source

Individual variation in animal communication: from species averages to unique voices

Biological Reviews, Volume 100, Issue 6, Page 2625-2640, December 2025.
ABSTRACT The comparative study of communicative behaviour in non‐human animals, especially primates, has yielded crucial insights into the evolution of human language. This research, mostly focused on the species and population level, has improved our understanding of the various socio‐ecological factors that shape communication systems.
Angèle Lombrey, Marlen Fröhlich
wiley   +1 more source

Pacific and Atlantic sea lion mortality caused by highly pathogenic Avian Influenza A(H5N1) in South America

Travel Medicine and Infectious Disease
We describe the evolution of the outbreak of Highly Pathogenic Avian Influenza (HPAI) A(H5N1) in sea lions (Otaria flavescens) of South America. At least 24,000 sea lions died in Peru, Chile, Argentina, Uruguay, and Brazil between January–October 2023 ...
Pablo I. Plaza, Víctor Gamarra-Toledo, Juan Rodríguez Euguí, Natalia Rosciano, Sergio A. Lambertucci   +4 more
doaj   +1 more source

Death seasonality determination from pinnipeds teeth: the Cueva del Negro site case (Argentine Patagonia)

Arqueologia, 2019
In this article, we present the first results of the determination of season at death performed over eighteen South American sea lions (Otaria flavescens) teeth recovered at Cueva del Negro site (northern coast of the Santa Cruz Province, Patagonia ...
Pablo Ambrústolo, Miguel A. Zubimendi, Enrique Crespo   +2 more
doaj   +1 more source

Avian influenza overview September–November 2025

EFSA Journal, Volume 23, Issue 12, December 2025.
Abstract Between 6 September and 28 November 2025, 2896 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (442) and wild (2454) birds in 29 countries in Europe. The magnitude and geographical extent of these detections were unprecedented for this time of the year, particularly in wild birds.
European Food Safety Authority, European Centre for Disease Prevention and Control, European Union Reference Laboratory for Avian Influenza, Hubert Buczkowski, Mariette Ducatez, Alice Fusaro, Jose L. Gonzales, Thijs Kuiken, Gražina Mirinavičiūtė, Karl Ståhl, Christoph Staubach, Olov Svartström, Calogero Terregino, Katriina Willgert, Evelyn Alarcón, Lisa Kohnle   +15 more
wiley   +1 more source

Entomofauna cadavérica en vertebrados marinos varados en la costa central del Perú

Graellsia, 2023
La presente investigación evalúa la entomofauna cadavérica en vertebrados marinos varados en la costa central del Perú. Se determinó la diversidad de la entomofauna presente en diferentes estados de descomposición de 291 carcasas de 18 especies de ...
José Iannacone‍, Lorena Alvariño, David Minaya, Geancarlo Alarcón, Amparo Rodríguez, Enrique Ávila‍   +5 more
doaj   +1 more source

Pinniped processing and consumption: early littoral occupations at Imiwaia I site, Tierra del fuego, República Argentina [PDF]

, 2015
El objetivo general de este artículo es analizar los patrones de procesamiento y consumo de pinnípedos en las ocupaciones canoeras tempranas de la región del canal Beagle. A tal efecto, se evalúan las modalidades explotación de dichos mamíferos marinos a
Martinoli, Maria Paz
core   +1 more source

Habitat use and spatial fidelity of male South American sea lions during the nonbreeding period [PDF]

, 2017
Conditions experienced during the nonbreeding period have profound long-term effects on individual fitness and survival. Therefore, knowledge of habitat use during the nonbreeding period can provide insights into processes that regulate populations.
Baylis, Alastair M. M., Brickle, Paul, Costa, Daniel P., Orben, Rachael A., Staniland, Iain J., Tierney, Megan   +5 more
core   +3 more sources