天沼岛琉球鸮种群规模和性别比的估算

IF 0.5 4区生物学 Q4 ORNITHOLOGY

Ornithological Science Pub Date : 2022-07-29 DOI:10.2326/osj.21.245

A. Sawada

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引用次数: 1

摘要

摘要大多数物种都无法获得Otus猫头鹰岛屿种群的基本人口统计数据。本研究调查了羽马岛琉球Scops Owls Otus elegans的种群规模和性别比例。捕获-再捕获数据是通过2021年7月至9月的密集标记和路线普查获得的。使用场地占用模型和数据扩充技术分析数据，估计人口规模为155.470人（97.575名男性和57.895名女性），具有显著的男性偏见性别比（0.631）。

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Estimation of Population Size and Sex Ratio of Ryukyu Scops Owl Otus elegans on Hateruma Island

Abstract Fundamental demographic data of insular populations of Otus owls are not available for most species. This study investigated the population size and the sex ratio of the Ryukyu Scops Owls Otus elegans on Hateruma Island. Capture-recapture data was obtained by intensive marking and route census surveys from July to September in 2021. Analysing the data using a site-occupancy model combined with a data-augmentation technique, the population size was estimated as 155.470 individuals (97.575 males and 57.895 females), with a significant male-biased sex ratio (0.631).

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来源期刊

Ornithological Science ORNITHOLOGY-

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Ornithological Science publishes reviews, original articles, short communications and comments covering all aspects of ornithology. Manuscripts are judged on the basis of their contribution of original data and ideas or interpretation. All articles are peer-reviewed by at least two researchers expert in the field of the submitted paper. Manuscript are edited where necessary for clarify and economy. Ornithological Science aims to publish as rapidly as is consistent with the requirements of peer-review and normal publishing constraints.