دورية أكاديمية

Camera trap data suggest uneven predation risk across vegetation types in a mixed farmland landscape

التفاصيل البيبلوغرافية
العنوان: Camera trap data suggest uneven predation risk across vegetation types in a mixed farmland landscape
المؤلفون: Amelie Laux, Matthias Waltert, Eckhard Gottschalk
المصدر: Ecology and Evolution, Vol 12, Iss 7, Pp n/a-n/a (2022)
بيانات النشر: Wiley, 2022.
سنة النشر: 2022
المجموعة: LCC:Ecology
مصطلحات موضوعية: camera traps, farmland, ground‐nesting farmland birds, Perdix perdix, predation risk, vegetation type, Ecology, QH540-549.5
الوصف: Abstract Ground‐nesting farmland birds such as the grey partridge (Perdix perdix) have been rapidly declining due to a combination of habitat loss, food shortage, and predation. Predator activity is the least understood factor, especially its modulation by landscape composition and complexity. An important question is whether agri‐environment schemes such as flower strips are potentially useful for reducing predation risk, for example, from red fox (Vulpes vulpes). We employed 120 camera traps for two summers in an agricultural landscape in Central Germany to record predator activity (i.e., the number of predator captures) as a proxy for predation risk and used generalized linear mixed models (GLMMs) to investigate how the surrounding landscape affects predator activity in different vegetation types (flower strips, hedges, field margins, winter cereal, and rapeseed fields). Additionally, we used 48 cameras to study the distribution of predator captures within flower strips. Vegetation type was the most important factor determining the number of predator captures and capture rates in flower strips were lower than in hedges or field margins. Red fox capture rates were the highest of all predators in every vegetation type, confirming their importance as a predator for ground‐nesting birds. The number of fox captures increased with woodland area and decreased with structural richness and distance to settlements. In flower strips, capture rates in the center were approximately 9 times lower than at the edge. We conclude that the optimal landscape for ground‐nesting farmland birds seems to be open farmland with broad extensive vegetation elements and a high structural richness. Broad flower blocks provide valuable, comparatively safe nesting habitats, and the predation risk can further be minimized by placing them away from woods and settlements. Our results suggest that adequate landscape management may reduce predation pressure.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2045-7758
Relation: https://doaj.org/toc/2045-7758
DOI: 10.1002/ece3.9027
URL الوصول: https://doaj.org/article/5db41adc62aa4243a8225f895dc76ba4
رقم الأكسشن: edsdoj.5db41adc62aa4243a8225f895dc76ba4
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20457758
DOI:10.1002/ece3.9027