A comparison between time-constrained counts and line transects as methods to estimate butterfly diversity and monitor populations in tropical habitats

IF 3.2 2区 农林科学 Q1 ENTOMOLOGY
Suman Attiwilli, Nitin Ravikanthachari, Krushnamegh Kunte
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引用次数: 0

Abstract

Abstract Image

将时间限制计数法和线性横断法作为估算热带栖息地蝴蝶多样性和监测种群的方法进行比较
长期的物种监测计划揭示了昆虫种群的灾难性下降和生物群落的破坏,这些都是导致生物多样性丧失的原因。这些发现之所以成为可能,是因为采用了标准化的方法,比如对蝴蝶和其他昆虫进行横线测量。然而,在许多热带和山地生境中,线样条是不可行的,因此必须探索替代方法。为了解决这个问题,我们设计了时间限制(30分钟)计数,并比较了印度三个热带栖息地(常绿森林、干燥落叶森林和城市林地)的蝴蝶多样性。我们测试了两种方法在采样物种丰富度和丰度以及稀有、特有种和特殊蝴蝶数量方面的相对性能。我们观察到常绿森林的总体物种丰富度更高,在时间限制下,每个样本的栖息地专家和特有物种数量也更多,而其他两种栖息地的物种丰富度更高。因此,在物种丰富的常绿生境中,时间约束计数相对更有效。除了这种差异之外,两种采样方法捕获的物种丰富度和其他多样性指标的水平相似。因此,我们的研究表明,在复杂的热带景观中,时间约束计数即使不是更好的替代样线,也是一种合适的方法来进行蝴蝶多样性调查和种群监测。由于方法的灵活性和简单性,在使用公民科学框架研究人口众多和技术成熟的热带国家中,时间限制计数对于研究气候变化、栖息地破碎化和土地利用实践对蝴蝶、蜻蜓和其他昆虫种群的影响可能特别有用。
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来源期刊
CiteScore
7.70
自引率
8.60%
发文量
58
审稿时长
>12 weeks
期刊介绍: To publish papers of the highest scientific quality within the general area of insect (and other arthropods) conservation and diversity covering topics ranging from ecological theory to practical management. Papers are invited on the following topics: Conservation genetics; Extinction debt; Long-term conservation planning and implementation; Global implications of local or national conservation actions; Management responses of species and communities; Captive breeding programs; Comparisons of restored and natural habitats; Biogeography; Global biodiversity; Metapopulation dynamics; Climate change: impacts on distributions and range; Invasive species: impacts and control; Effects of pollution; Genetic threats to diversity by introgression; Effects of fragmentation on diversity and distribution; Impact of agricultural and forestry practices on biodiversity; Enhancing urban environments for diversity and protection; Biodiversity action plans: can we scale up from insects?; Effectiveness and choice of indicator species; Soil biodiversity and interactions with above-ground biodiversity; Ecological interactions at local levels; Ecological and evolutionary factors influencing diversity and local, regional and global scales; Sustainable livelihoods and training on the ground; Integrating science and policy.
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