加拿大不列颠哥伦比亚省黑牡蛎(Haematopus bachmani)年存活率及种群趋势

IF 0.4 4区 生物学 Q4 ORNITHOLOGY Wilson Journal Of Ornithology Pub Date : 2023-09-19 DOI:10.1676/22-00095
Olivia R. Maillet, Erica Nol, Yuri Zharikov
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Apparent survival was not sex-dependent, but encounter probability was 9.8% higher in females (0.96 6 0.02) than in males (0.87 6 0.03), for reasons we cannot definitively establish. The population trend in the studied population for 2008–2022 was estimated at 3.47 6 0.50%, indicating a growing population with an apparent surplus of adult individuals. These survival, encounter, and population trend estimates are important for future monitoring of the Pacific Rim and other Black Oystercatcher populations. RESUMEN (Spanish) El ostrero Haematopus bachmani es una especie importante indicadora de la integridad ecológica del ecosistemas costeros rocosos en el oeste de Norteamérica. Del 2007 al 2022, 49 ostreros Haematopus bachmani fueron anillados y reobservados en años siguientes dentro y alrededor de Pacific Rim National Park Reserve en Vancouver Island, British Columbia, Canadá. Usamos modelos de marca-recaptura de Cormack-Jolly-Seber para 16 años de historial de encuentros para estimar el efecto de la sobrevivencia aparente (u), probabilidad de encuentros (p) y determinar si había un efecto de sexo en la sobrevivencia aparente. La tasa de sobrevivencia aparente fue alta (0.916 0.02), como ha sido reportado para otras especies de ostreros. La sobrevivencia aparente no dependía del sexo, pero la probabilidad de encuentro era 9.8% mayor en hembras (0.96 6 0.02) que en machos (0.87 6 0.03), por razones que no podemos establecer de forma definitiva. La tendencia poblacional en la población estudiada para 2008–2022 fue estimada en 3.47 6 0.50%, lo que indica una población creciente con un aparente excedente de individuos adultos. Estas estimaciones de sobrevivencia, encuentro y tendencias poblacionales son importantes para futuros monitoreos de la población de ostreros de Pacific Rim y de otras poblaciones. 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Apparent adult annual survival and population trends of Black Oystercatcher (Haematopus bachmani) breeding in British Columbia, Canada
ABSTRACT Black Oystercatcher (Haematopus bachmani) is an important indicator species for the ecological integrity of rocky coastal ecosystems of western North America. From 2007 to 2022, 49 Black Oystercatchers were banded and resighted in subsequent years in and around Pacific Rim National Park Reserve on Vancouver Island, British Columbia, Canada. We used Cormack-Jolly-Seber mark–recapture models on 16 years of encounter histories to estimate apparent adult annual survival (u), encounter probability (p), and to determine if there was a sex effect on apparent survival. The apparent survival estimate was high (0.91 6 0.02), as reported for other oystercatcher species. Apparent survival was not sex-dependent, but encounter probability was 9.8% higher in females (0.96 6 0.02) than in males (0.87 6 0.03), for reasons we cannot definitively establish. The population trend in the studied population for 2008–2022 was estimated at 3.47 6 0.50%, indicating a growing population with an apparent surplus of adult individuals. These survival, encounter, and population trend estimates are important for future monitoring of the Pacific Rim and other Black Oystercatcher populations. RESUMEN (Spanish) El ostrero Haematopus bachmani es una especie importante indicadora de la integridad ecológica del ecosistemas costeros rocosos en el oeste de Norteamérica. Del 2007 al 2022, 49 ostreros Haematopus bachmani fueron anillados y reobservados en años siguientes dentro y alrededor de Pacific Rim National Park Reserve en Vancouver Island, British Columbia, Canadá. Usamos modelos de marca-recaptura de Cormack-Jolly-Seber para 16 años de historial de encuentros para estimar el efecto de la sobrevivencia aparente (u), probabilidad de encuentros (p) y determinar si había un efecto de sexo en la sobrevivencia aparente. La tasa de sobrevivencia aparente fue alta (0.916 0.02), como ha sido reportado para otras especies de ostreros. La sobrevivencia aparente no dependía del sexo, pero la probabilidad de encuentro era 9.8% mayor en hembras (0.96 6 0.02) que en machos (0.87 6 0.03), por razones que no podemos establecer de forma definitiva. La tendencia poblacional en la población estudiada para 2008–2022 fue estimada en 3.47 6 0.50%, lo que indica una población creciente con un aparente excedente de individuos adultos. Estas estimaciones de sobrevivencia, encuentro y tendencias poblacionales son importantes para futuros monitoreos de la población de ostreros de Pacific Rim y de otras poblaciones. Palabras clave: intermareal, marca-recaptura, modelo Cormack-Jolly-Seber, TRIM, zona costera.
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自引率
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发文量
133
审稿时长
4-8 weeks
期刊介绍: Aims & Scope For more than a century, the Wilson Ornithological Society has published a scholarly journal with form and content readily accessible to both professional and amateur ornithologists. The Wilson Journal of Ornithology is a quarterly publication consisting of major articles based on original studies of birds and short communications that describe observations of particular interest. Each issue also includes reviews of new books on birds and related subjects, as well as ornithological news. Through an endowment from the late George Miksch Sutton, each issue of the Journal includes a full color frontispiece. Each current volume consists of approximately 500 pages. The principal focus of the Journal is the study of living birds, their behavior, ecology, adaptive physiology and conservation. Although most articles originate from work conducted in the western hemisphere (a large portion of the research on Neotropical birds is published here), the geographic coverage of the journal is global. The Journal is internationally recognized as an important, major journal of ornithology. The Edwards Prize is given annually for the best major article published during the previous year. The Wilson Journal of Ornithology was formerly named the Wilson Bulletin.
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