Unusual lack of reproduction in toad populations from agricultural habitats

IF 1.1 4区 生物学 Q3 ZOOLOGY Herpetological Journal Pub Date : 2021-10-01 DOI:10.33256/31.4.197200
Matthias Renoirt, Marion Cheron, F. Angelier, F. Brischoux
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引用次数: 1

Abstract

Anthropogenic alterations of habitats can have detrimental consequences for biodiversity. Documenting these effects require monitoring in multiple sites that vary in the degree of alterations over long temporal scales, a task that is challenging. Yet, simple naturalist observations can reveal major ongoing events affecting wild populations, and serve as a basis for further investigations. We quantified breeding parameters of spined toad (Bufo spinosus) populations from forested (preserved) and agricultural (altered) habitats. We found that reproduction did not occur at the sites surrounded by agriculture, while it occurred successfully in ponds from forests. Males were present at all sites, but females, amplexus, egg strings and tadpoles remained absent from agricultural sites. Observations made at the same sites indicated that breeding occurred during previous years. Our observations of habitat- and sex-specific lack of reproduction may have critical consequences for the persistence of populations of a widespread amphibian species in agricultural areas.
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农业栖息地蟾蜍种群异常缺乏繁殖
人类对栖息地的改变可能对生物多样性产生不利影响。记录这些影响需要在多个地点进行监测,这些地点在长时间尺度上的变化程度各不相同,这是一项具有挑战性的任务。然而,简单的自然主义观察可以揭示影响野生种群的重大事件,并作为进一步调查的基础。我们量化了来自森林(保存)和农业(改变)栖息地的棘蟾蜍种群的繁殖参数。我们发现,繁殖并没有发生在农业周围的地方,而它成功地发生在森林的池塘里。所有地点都有雄性动物,但农业地点仍然没有雌性动物、蝾螈、卵串和蝌蚪。在同一地点进行的观测表明,繁殖发生在前几年。我们对栖息地和性别缺乏繁殖的观察可能会对农业地区广泛分布的两栖动物种群的持续存在产生重大影响。
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来源期刊
Herpetological Journal
Herpetological Journal 生物-动物学
CiteScore
2.40
自引率
10.00%
发文量
25
审稿时长
>12 weeks
期刊介绍: The Herpetological Journal is the Society''s prestigious quarterly scientific journal.
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