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Abstract
Climate change has exacerbated the frequency and severity of heat waves, which on occasion lead to mass mortalities. Here, we report a massive mortality event in Imperial Cormorant Leucocarbo atriceps chicks that took place during December 2016 at Punta León, one of the two largest colonies (> 6000 pairs) and the northernmost colony for the species in coastal Patagonia, Argentina. During a 2-day period, we estimate that approximately 86.5% of the chicks [ver mas...]
dc.contributor.authorQuintana, Flavio
dc.contributor.authorUhart, Marcela M.
dc.contributor.authorGallo, Luciana
dc.contributor.authorMattera, María Belén
dc.contributor.authorRimondi, Agustina
dc.contributor.authorGómez‑Laich, Agustina
dc.date.accessioned2022-05-06T16:04:06Z
dc.date.available2022-05-06T16:04:06Z
dc.date.issued2022-02
dc.identifier.issn1432-2056
dc.identifier.issn0722-4060
dc.identifier.otherhttps://doi.org/10.1007/s00300-021-02982-6
dc.identifier.urihttp://hdl.handle.net/20.500.12123/11830
dc.identifier.urihttps://link.springer.com/article/10.1007/s00300-021-02982-6
dc.description.abstractClimate change has exacerbated the frequency and severity of heat waves, which on occasion lead to mass mortalities. Here, we report a massive mortality event in Imperial Cormorant Leucocarbo atriceps chicks that took place during December 2016 at Punta León, one of the two largest colonies (> 6000 pairs) and the northernmost colony for the species in coastal Patagonia, Argentina. During a 2-day period, we estimate that approximately 86.5% of the chicks died. Our results suggest that the mortality event was heat-related, as consequence of an intense heat wave during the brooding period. During two consecutive days, chicks between 12 and 19 days old were exposed to air temperatures above the historical mean of maxima for a total of 25 h. On one of these days, the air temperature reached a maximum of 38.1 °C with records above 35 °C sustained during four consecutive hours. Chicks were found dead throughout the colony, mostly in the nests with no evidence of external injuries other than occasional scavenging by seagulls. Acute mortality from disease was ruled out based on clinical presentation and negative results for avian influenza virus, saxitoxins, and domoic acid (two common marine toxins). Our work underscores the importance of long-term studies in understanding heat associated breeding failure of one of the largest Imperial Cormorant colonies along its breeding range in coastal Patagonia.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringeres_AR
dc.relationinfo:eu-repograntAgreement/INTA/PNSA-1115052/AR./Epidemiología y desarrollo de estrategias para la prevención y control de enfermedades que afectan la salud pública, enfermedades exóticas y limitantes del comercio internacional.es_AR
dc.relationinfo:eu-repograntAgreement/INTA/PNSA-1115056/AR./Enfermedades infecciosas de las aves.es_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourcePolar Biology 45 (2) : 275-284 (Febrero 2022)es_AR
dc.subjectClimate Changeeng
dc.subjectCambio Climáticoes_AR
dc.subjectThermoregulationeng
dc.subjectTermorregulaciónes_AR
dc.subjectMortalityeng
dc.subjectMortalidades_AR
dc.subjectArgentinaes_AR
dc.subjectCormorantseng
dc.subjectCormoránes_AR
dc.subject.otherHeat Waveeng
dc.subject.otherOla de Calores_AR
dc.subject.otherLeucocarbo atricepses_AR
dc.subject.otherRegión Patagónicaes_AR
dc.titleHeat‑related massive chick mortality in an Imperial Cormorant Leucocarbo atriceps colony from Patagonia, Argentinaes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Virologíaes_AR
dc.description.filFil: Quintana, Flavio. Consejo Nacional de Investigaciones Científcas y Técnicas. Instituto de Biología de Organismos Marinos; Argentinaes_AR
dc.description.filFil: Uhart, Marcela M. University of California Davis. School of Veterinary Medicine. One Health Institute; Estados Unidoses_AR
dc.description.filFil: Gallo, Luciana. Consejo Nacional de Investigaciones Científcas y Técnicas. Instituto de Biología de Organismos Marinos; Argentinaes_AR
dc.description.filFil: Mattera, María Belén. Instituto Nacional de Investigación y Desarrollo Pesquero; Argentinaes_AR
dc.description.filFil: Rimondi, Agustina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología; Argentinaes_AR
dc.description.filFil: Gómez‑Laich, Agustina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución. Departamento de Ecología, Genética y Evolución; Argentinaes_AR
dc.subtypecientifico


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