Past and recent drivers of extinction risk in endemic New Zealand birds

IF 2.6 2区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION
J. C. Garcia-R, M. Cimatti, M. Di Marco
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引用次数: 0

Abstract

Land-cover change is a major driver of species extinction risk and the overarching loss of biodiversity. However, the impact of such change is nuanced, varying among species due to the mediation of life-history traits and the timing of land transformation. While diverse studies have pinpointed ecological and life-history attributes linked to the decline of bird species, the combined effects of past and recent land-cover change often present a complex picture. In this study, we undertook a modelling approach to assess extinction risk in New Zealand's endemic birds based on life-history traits and past (1996–2008) and recent (2008–2018) land-cover change. Our results suggested specific variables driving extinction risk in endemic New Zealand birds. Notably, incubation length emerged as the most influential factor, trailed by past land-cover change, body size and clutch size. This indicates that past land-cover change in combination with large body sizes and slow life histories, characterized by low fecundity and extended incubation periods, collectively elevates the extinction risk of endemic birds in New Zealand. These results shed light on the conservation priorities for species with specific biological traits potentially exposed to the negative effects of land-cover change.

Abstract Image

新西兰特有鸟类灭绝风险的过去和最近的驱动因素
土地覆盖变化是物种灭绝风险和生物多样性全面丧失的主要驱动因素。然而,这种变化的影响是微妙的,由于生命史特征的调解和土地转化的时间,不同物种之间的影响是不同的。虽然各种各样的研究已经确定了与鸟类数量减少有关的生态和生活史特征,但过去和最近土地覆盖变化的综合影响往往呈现出一幅复杂的图景。在这项研究中,我们采用了一种建模方法,根据生活史特征和过去(1996-2008)和最近(2008-2018)的土地覆盖变化,评估新西兰特有鸟类的灭绝风险。我们的研究结果表明,特定的变量导致了新西兰特有鸟类的灭绝风险。值得注意的是,孵化长度成为最具影响力的因素,其次是过去的土地覆盖变化、体型和卵窝大小。这表明,过去的土地覆盖变化,加上体型大、繁殖力低、孵化期长等特征的缓慢生活史,共同提高了新西兰特有鸟类的灭绝风险。这些结果揭示了具有特定生物性状的物种可能受到土地覆盖变化的负面影响的保护重点。
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来源期刊
Animal Conservation
Animal Conservation 环境科学-生态学
CiteScore
7.50
自引率
5.90%
发文量
71
审稿时长
12-24 weeks
期刊介绍: Animal Conservation provides a forum for rapid publication of novel, peer-reviewed research into the conservation of animal species and their habitats. The focus is on rigorous quantitative studies of an empirical or theoretical nature, which may relate to populations, species or communities and their conservation. We encourage the submission of single-species papers that have clear broader implications for conservation of other species or systems. A central theme is to publish important new ideas of broad interest and with findings that advance the scientific basis of conservation. Subjects covered include population biology, epidemiology, evolutionary ecology, population genetics, biodiversity, biogeography, palaeobiology and conservation economics.
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