Modelling nesting habitat as a conservation tool for the Eurasian black vulture (Aegypius monachus) in Dadia Nature Reserve, northeastern Greece

Poirazidis, Κonstantinos; Goutner, Vassilis; Skartsi, Theodora; Stamou, George P.

doi:10.1016/j.biocon.2003.08.016

Cited by 83 publications

(92 citation statements)

References 25 publications

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“…Pseudo-absences are meant to provide a comparative data set to enable the conditions under which a species occurs to be contrasted to where it is absent (VanDerWal et al 2009). Based on findings that woodland is a significant predictor of bear habitat in this region (Onorato et al 2003;Mitchell et al 2005) and that 65% of our bear locations were located in the woodland landcover, we restricted the pseudo-absence point locations to woodland landcover (Poirazidis et al 2004). Therefore, the proportion of woodland variable was not included in the model.…”

Section: Landcover Variablesmentioning

confidence: 99%

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Habitat-Distribution Modeling of a Recolonizing Black Bear, <em>Ursus americanus</em>, Population in the Trans-Pecos Region of Texas

et al. 2009

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Black Bears (Ursus americanus) were once widespread across Texas, but their numbers were reduced in the early 1900s. Recolonization of the Trans-Pecos region of Texas has occurred via bears migrating northward from Mexico. Recent bear sightings have increased in this area. This could be an indication that the population in Texas is beginning to recover, but the population will continue to expand only if there is suitable habitat to occupy. To help identify suitable habitat and restoration areas, we developed a predictive habitat-distribution model by using records of Black Bear sightings from 1996 to 2003 to map the species' distribution. Using Bayesian statistics, we modeled the probability of occurrence of Black Bears in the Trans-Pecos region based on sighting locations. We used GIS layers for land use/landcover, elevation, water sources, and road networks to obtain covariates in our modeling. We used a 10-fold cross-validation to test the effectiveness of using sighting data. Our results indicated a negative association with bare areas, agriculture, and grassland landcovers. In addition, southern aspect, elevation, distance to water, slope, and western aspect also influenced suitable habitat. Both the original and validation datasets correctly classified bear sightings 93.9% and 93.7% of the time, respectively. Our model can be used to target restoration efforts to enhance the ability of the Black Bear to expand in the Trans-Pecos region. It can also identify private landowners most likely to be affected by the expansion of Black Bears for education and cooperative efforts.

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Section: Landcover Variablesmentioning

confidence: 99%

“…Therefore, the proportion of woodland variable was not included in the model. The same 2.2 km buffer was applied to the pseudo-absence points, but we did not allow any overlap between bear sighting buffers and the pseudo-absence buffers (Poirazidis et al 2004).…”

Section: Landcover Variablesmentioning

confidence: 99%

Habitat-Distribution Modeling of a Recolonizing Black Bear, <em>Ursus americanus</em>, Population in the Trans-Pecos Region of Texas

et al. 2009

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“…The conservation of the black vulture (Aegypius monachus) is the central subject of forest management in the region (Adamakopoulos et al, 1995;Poirazidis et al, 2004), since DNP hosts the only breeding population of the species in www.intechopen.com…”

Section: Fig 1 the Dadia-lefkimi-soufli Forest National Parkmentioning

confidence: 99%

“…The two cores have 85% cover of pinewoods and mixed pine-oak woods and are crucial as nesting sites for the black vulture (Poirazidis et al, 2004). Maps of probability of occurrence for the nest sites of black vultures showed that nests are very likely to fall within the cores of DNP (Poirazidis et al, 2004).…”

Section: Can Forest Management In Protected Areas Produce New Risk Simentioning

confidence: 99%

Can Forest Management in Protected Areas Produce New Risk Situations? A Mixed-Motive Perspective from the Dadia-Soufli-Lefkimi Forest National Park, Greece

Hovardas¹

2012

Sustainable Forest Management - Case Studies

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“…Consequently management of nesting habitat has been identified as a conservation tool for endangered bird species such as the Eurasian Black Vulture Aegypius monachus in Greece (Poirazidis et al 2004). In Britain, the Song Thrush Turdus philomelos population has declined by 52% over the last 30 years (Eaton et al 2004), with the largest decline on farmland (65%) and slower decline in woodland (Thomson et al 1997, Baillie et al 2002.…”

mentioning

confidence: 99%

Influence of nesting habitat on breeding Song ThrushesTurdus philomelos

Kelleher¹,

O’Halloran²

2007

Bird Study

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Modelling nesting habitat as a conservation tool for the Eurasian black vulture (Aegypius monachus) in Dadia Nature Reserve, northeastern Greece

Cited by 83 publications

References 25 publications

Habitat-Distribution Modeling of a Recolonizing Black Bear, <em>Ursus americanus</em>, Population in the Trans-Pecos Region of Texas

Habitat-Distribution Modeling of a Recolonizing Black Bear, <em>Ursus americanus</em>, Population in the Trans-Pecos Region of Texas

Can Forest Management in Protected Areas Produce New Risk Situations? A Mixed-Motive Perspective from the Dadia-Soufli-Lefkimi Forest National Park, Greece

Influence of nesting habitat on breeding Song ThrushesTurdus philomelos

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