濒危瘿蚊对栖息地管理的种群响应:萨纳布里亚湖比利牛斯灰鹧鸪恢复项目(2000-2023 年)

Diversity Pub Date : 2024-08-01 DOI:10.3390/d16080459
Jesús Palacios, Carlos Sánchez-García, Pablo Santos, Mariano Rodríguez, José L. Gutiérrez, Ana Martínez, José Á. Arranz, David Cubero, Víctor Salvador, María C. Belver, José F. Carreño, Hipólito Hernández, María J. Rodríguez, Raúl E. Tizado-Núñez, E. Jorge Tizado
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引用次数: 0

摘要

比利牛斯灰鹧鸪(Perdix perdix hispaniensis)是一种濒危的五倍子类动物,分布在西班牙、法国和安道尔以灌木林为主的高地栖息地,对其研究不足。为了制定有利于该物种的有针对性的管理措施,我们研究了栖息地管理对位于加利西亚-杜埃洛山区萨莫拉省的一个鹧鸪种群的影响,这是地区政府(卡斯蒂利亚-莱昂省政府)推动的一个长期项目的一部分。管理的基础是通过清除分布在 45 平方公里 "核心区 "的灌木林(地块或线状)来保护和恢复最佳栖息地,秋季在三个区域使用打猎者和猎犬进行追踪,并比较管理前(2000-2006 年)和管理后(2007-2023 年)的鹧鸪数量。栖息地管理提高了两个区域的鹧鸪丰度值(分别是原来的 1.46 倍和 1.68 倍),对其余一个区域没有影响。在研究期间,灰鹧鸪的丰量模式是不规则的,不受天气影响,最高丰量值出现在首次实施栖息地措施的 8-10 年之后。栖息地管理使灰鹧鸪的秋季丰度达到较高水平(两个地区的平均公里丰度值分别为 2.94 只和 3.74 只/公里),而每个家庭群的平均数量并未受到管理的影响(9 只/家庭群)。在恢复比利牛斯灰鹧鸪种群时,栖息地管理应以灌木林地的保护和管理为基础,以提供中长期的混合栖息地,并确保对鹧鸪进行定期监测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Population Response to Habitat Management from an Endangered Galliform: The Pyrenean Grey Partridge Recovery Project in Lago de Sanabria (2000–2023)
The Pyrenean grey partridge (Perdix perdix hispaniensis) is an endangered and insufficiently studied galliform occurring in upland habitats dominated by shrublands in Spain, France, and Andorra. Aiming to develop tailored management to favour the species, we studied the effect of habitat management on a partridge population located in Zamora province within the Galician–Duero mountains as part of a long-term project promoted by the regional government (Junta Castilla y León). Management was based on carrying out conservation and recovery of optimal habitats through clearing shrublands (either plots or linear) distributed in a “core area” of 45 km2, conducting tracks with beaters and pointing dogs during autumn in three areas, and comparing the partridge abundance before (2000–2006) and after (2007–2023) management. Habitat management increased partridge abundance values in two areas (1.46 and 1.68 times higher) and had no effect on the remaining one. The pattern of grey partridge abundance during the study was irregular and not influenced by the weather, and the highest abundance values were reached 8–10 years after habitat measures were implemented for the first time. Habitat management allowed high autumn abundance to be reached (mean kilometre abundance values of 2.94 and 3.74 birds/km in two areas), while the mean number of birds per family group was not affected by management (nine birds/group). When aiming to recover Pyrenean grey partridge populations, habitat management should be based on the conservation and management of shrublands to provide mixed habitats in the medium and long term, ensuring regular partridge monitoring.
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