Anthropogenic activities influence the abandonment of Bearded Vulture (<i>Gypaetus barbatus</i>) territories in southern Africa

Krüger, Sonja; Simmons, Robert E.; Amar, Arjun

doi:10.1650/condor-14-121.1

Cited by 35 publications

(29 citation statements)

References 52 publications

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“…The productivity in habitual nests was much higher than that registered in alternative nests (Fig. 3), which is coherent with reports of other raptors forced to use lower quality nest sites (Ferrer & Donazar, 1996;Mooney & Taylor, 1996;Kr€ uger, Simmons & Amar, 2015). Thus, it is necessary to develop buffer areas around habitual nest sites, in the hope that such planning measures will minimize disturbance impacts and promote population persistence in nesting areas (McCarthy et al, 1997;Don azar et al, 2002a;Koch & Paton, 2014).…”

Section: Discussionsupporting

confidence: 84%

Out of sight, out of mind? Testing the effects of overwinter habitat alterations on breeding territories of a migratory endangered species

Morant

Zabala

Martínez³

et al. 2018

Animal Conservation

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Anthropogenic activities are one of the main threats to species living in humandominated landscapes and can promote behavioral changes in birds. This paper presents a novel approach to test how a migratory species responds to habitat alterations occurring in nesting territories during winter, when the species is absent. From 2000 to 2016, we collated territory and nest monitoring data for the endangered Egyptian Vulture Neophron percnopterus in the north of Spain, to test the effects of overwinter habitat alterations (OHA) around breeding territories on the species reproductive output. We monitored 70 different nest sites and observed OHA around the nesting area in 39 cases. Probability of switching to another nesting site almost tripled after OHA. Pairs that switched experienced substantially decreased breeding success and avoided reusing the nest for 4.8 AE 4.64 years. The presence of determinate landscape elements that provide screening, such as forest patches, increased nest reoccupancy probability after OHA by more than 0.3, to 0. 55 (compared to 0.24 when no screening was present). We also found that the distance and the situation of the OHA were critical factors explaining reproduction probabilities at nest sites. Our results demonstrate how OHA can strongly impact the breeding behavior of long-lived species. This highlights the need to examine the long-term impact of OHA rather than focusing only on disturbances during sensitive periods, as is often the case with habitual mitigation measures.

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Section: Discussionsupporting

confidence: 84%

Out of sight, out of mind? Testing the effects of overwinter habitat alterations on breeding territories of a migratory endangered species

Morant

Zabala

Martínez³

et al. 2018

Animal Conservation

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“…Declines in bearded vulture populations have been documented throughout its range, with habitat loss, direct persecution (poisoning and hunting) and reduced food availability being the main aggravating factors5859. In Europe the species is restricted to the Pyrenees (170 breeding pairs), Alps (31 pairs), Crete (6 pairs), Corsica (5 pairs) and Andalusia (1 pair) (A. Margalida, unpubl.…”

Section: Methodsmentioning

confidence: 99%

Spatial and temporal movements in Pyrenean bearded vultures (Gypaetus barbatus): Integrating movement ecology into conservation practice

Margalida

Pérez‐García

Afonso³

et al. 2016

Sci Rep

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Understanding the movement of threatened species is important if we are to optimize management and conservation actions. Here, we describe the age and sex specific spatial and temporal ranging patterns of 19 bearded vultures Gypaetus barbatus tracked with GPS technology. Our findings suggest that spatial asymmetries are a consequence of breeding status and age-classes. Territorial individuals exploited home ranges of about 50 km2, while non-territorial birds used areas of around 10 000 km2 (with no seasonal differences). Mean daily movements differed between territorial (23.8 km) and non-territorial birds (46.1 km), and differences were also found between sexes in non-territorial birds. Daily maximum distances travelled per day also differed between territorial (8.2 km) and non-territorial individuals (26.5 km). Territorial females moved greater distances (12 km) than males (6.6 km). Taking into account high-use core areas (K20), Supplementary Feeding Sites (SFS) do not seem to play an important role in the use of space by bearded vultures. For non-territorial and territorial individuals, 54% and 46% of their home ranges (K90), respectively, were outside protected areas. Our findings will help develop guidelines for establishing priority areas based on spatial use, and also optimize management and conservation actions for this threatened species.

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“…This result matches the results obtained for the population in the Pyrenees (Margalida et al , Morales‐Reyes et al ). As in other species, in the Bearded Vulture the use of non‐protected areas increases non‐natural mortality due to the effects of several anthropogenic threats (Margalida et al , Krüger et al , Ogada et al , Krüger & Amar , Parvanov et al ). Therefore, it is important also to develop conservation strategies outside protected areas and in human‐dominated landscapes (Pérez‐García et al ).…”

Section: Discussionmentioning

confidence: 99%

Spatial and temporal movement of the Bearded Vulture using GPS telemetry in the Himalayas of Nepal

Subedi

Pérez‐García

Sah

et al. 2019

Ibis

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This study addresses for the first time the movement patterns of the globally near‐threatened Bearded Vulture Gypaetus barbatus in its most important stronghold, the high‐altitude mountain ranges of Asia. Tracked individuals (n = 8) in the Annapurna Himalayan range (Nepal) foraged over a vast range of 60 715.9 km2 and our results indicated age‐class differences in the use of space. Territorial adults showed very small annual home‐ranges (K90 = 150.3 km2), whereas immatures wandered extensively and covered vast ranges of the mountains (K90 = 23 930.8 km2). For adults and immatures, these values are notably larger than the other two studied populations in the world (Pyrenees and South Africa). This suggests that the studied Annapurna population might exhibit lower breeding density than in the Pyrenees or South Africa, possibly due to lower food availability.

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Anthropogenic activities influence the abandonment of Bearded Vulture (Gypaetus barbatus) territories in southern Africa

Cited by 35 publications

References 52 publications

Out of sight, out of mind? Testing the effects of overwinter habitat alterations on breeding territories of a migratory endangered species

Out of sight, out of mind? Testing the effects of overwinter habitat alterations on breeding territories of a migratory endangered species

Spatial and temporal movements in Pyrenean bearded vultures (Gypaetus barbatus): Integrating movement ecology into conservation practice

Spatial and temporal movement of the Bearded Vulture using GPS telemetry in the Himalayas of Nepal

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