历史鸟类图集和当代公民科学数据揭示了肯尼亚鸟类地理范围的长期变化

IF 4.6 2区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION
Raphaël Nussbaumer, Améline Nussbaumer, Samuel Guchu, Richard Stratton Hatfield, Erustus M. Kanga, Gladys Nyakeru Kung'u, Anthony Kuria, Eliot Miller, Paul Kariuki Ndang'ang'a, Peter Njoroge, Darcy Ogada, Sidney Shema, Colin Jackson
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引用次数: 0

摘要

目的历史鸟类地图集为研究物种分布的长期变化提供了全面的数据集。在生物多样性加速丧失的背景下,这些数据集可以为了解鸟类在广泛时空尺度上的分布状况提供重要见解,并为有效保护提供急需的信息。在非洲,地图集数据在了解鸟类种群变化方面的潜力在很大程度上尚未得到开发。本研究绘制了肯尼亚1088种鸟类全国分布格局的变化。方法利用最早的图集数据库之一,本研究将1970年至1984年收集的肯尼亚鸟类图集数据与最近来自肯尼亚鸟类地图项目和eBird的公民科学数据进行了比较,以确定50年来范围的变化。我们制作了地图,以每27 × 27平方公里为单位,显示一个物种是出现过,在两个时期都存在过,还是消失了。我们通过量化每个平方变化的置信度来解释两个时期之间数据收集工作的变化。结果每个物种的地图都可以通过一个互动网站:https://kenyabirdtrends.co.ke/公开获取。我们发现,相关物种在分布范围上倾向于经历类似的变化。古北移鸟和食腐鸟的活动范围急剧减少,而引进鸟类的活动范围在过去50年中有显著增加。本研究展示了将最近的公民科学数据与历史地图集数据相结合,在国家层面上得出所有物种范围变化的潜力。古北移徙者和食腐动物的活动范围缩小,与当地、区域和全球范围内的丰度下降相呼应。这些发现为加强对肯尼亚候鸟和食腐鸟的保护提供了额外的支持。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Historical Bird Atlas and Contemporary Citizen Science Data Reveal Long-Term Changes in Geographic Range of Kenyan Birds

Historical Bird Atlas and Contemporary Citizen Science Data Reveal Long-Term Changes in Geographic Range of Kenyan Birds

Aim

Historical bird atlases provide comprehensive datasets for investigating long-term changes in species' distribution. In the context of accelerating biodiversity loss, these datasets can lend critical insights into the state of bird distributions across broad spatio-temporal scales and provide much-needed information for impactful conservation. In Africa, the potential of atlas data to understand changes in avian populations remains largely untapped.

Location

This study mapped changes in national distribution patterns of 1088 bird species found in Kenya.

Methods

Tapping into one of the earliest atlas databases, this study compared Kenyan bird atlas data collected between 1970 and 1984 with recent citizen science data sourced from the Kenya Bird Map project and eBird to determine changes in ranges across 50 years. We produced maps displaying, for every 27 × 27 km square of the country, whether a species appeared, was present throughout both periods, or disappeared. We account for the change in data collection effort between the two periods by quantifying the confidence of the change for each square.

Results

The maps produced for each species are publicly accessible through an interactive website: https://kenyabirdtrends.co.ke/. We found that related species tended to experience similar changes in their distribution ranges. The ranges of Palearctic migrants and scavengers declined drastically, while introduced birds experienced a significant range increase over the past 50 years.

Main Conclusions

This study demonstrates the potential of integrating recent citizen science data with historical atlas data to draw out the changes in range for all species at national level. The range contraction of Palearctic migrants and scavengers echoed corresponding drops in abundance at local, regional and global scales. These findings lend additional weight to the need for an increased conservation focus on migratory and scavenging birds in Kenya.

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来源期刊
Diversity and Distributions
Diversity and Distributions 环境科学-生态学
CiteScore
8.90
自引率
4.30%
发文量
195
审稿时长
8-16 weeks
期刊介绍: Diversity and Distributions is a journal of conservation biogeography. We publish papers that deal with the application of biogeographical principles, theories, and analyses (being those concerned with the distributional dynamics of taxa and assemblages) to problems concerning the conservation of biodiversity. We no longer consider papers the sole aim of which is to describe or analyze patterns of biodiversity or to elucidate processes that generate biodiversity.
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