The influence of habitat structure on genetic differentiation in red fox populations in north-eastern Poland.

Acta Theriologica Pub Date : 2014-01-01 Epub Date: 2014-03-22 DOI:10.1007/s13364-014-0180-2
Jacinta Mullins, Allan D McDevitt, Rafał Kowalczyk, Iwona Ruczyńska, Marcin Górny, Jan M Wójcik
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引用次数: 1

Abstract

The red fox (Vulpes vulpes) has the widest global distribution among terrestrial carnivore species, occupying most of the Northern Hemisphere in its native range. Because it carries diseases that can be transmitted to humans and domestic animals, it is important to gather information about their movements and dispersal in their natural habitat but it is difficult to do so at a broad scale with trapping and telemetry. In this study, we have described the genetic diversity and structure of red fox populations in six areas of north-eastern Poland, based on samples collected from 2002-2003. We tested 22 microsatellite loci isolated from the dog and the red fox genome to select a panel of nine polymorphic loci suitable for this study. Genetic differentiation between the six studied populations was low to moderate and analysis in Structure revealed a panmictic population in the region. Spatial autocorrelation among all individuals showed a pattern of decreasing relatedness with increasing distance and this was not significantly negative until 93 km, indicating a pattern of isolation-by-distance over a large area. However, there was no correlation between genetic distance and either Euclidean distance or least-cost path distance at the population level. There was a significant relationship between genetic distance and the proportion of large forests and water along the Euclidean distances. These types of habitats may influence dispersal paths taken by red foxes, which is useful information in terms of wildlife disease management.

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波兰东北部生境结构对赤狐种群遗传分化的影响。
红狐(Vulpes Vulpes)是全球陆地食肉动物中分布最广的物种,占据了北半球的大部分地区。由于它携带的疾病可以传播给人类和家畜,因此收集它们在自然栖息地的活动和分布情况的信息很重要,但通过诱捕和遥测技术很难在大范围内做到这一点。在这项研究中,我们基于2002-2003年收集的样本,描述了波兰东北部六个地区红狐种群的遗传多样性和结构。我们测试了从狗和红狐基因组中分离的22个微卫星位点,从中选择了9个适合本研究的多态性位点。6个研究群体的遗传分化程度为低至中等,结构分析显示该地区存在泛型群体。所有个体之间的空间自相关均表现出随距离增加而降低的趋势,直到93 km时才出现显著的负相关,表明在大范围内存在逐距离隔离的趋势。在种群水平上,遗传距离与欧几里得距离和最小代价路径距离均无相关性。在欧几里得距离上,遗传距离与大森林和水的比例有显著的关系。这些类型的栖息地可能影响红狐的传播路径,这对野生动物疾病管理是有用的信息。
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Acta Theriologica
Acta Theriologica 生物-动物学
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