Assessing the potential distribution of the Caucasian black grouse Tetrao mlokosiewiczi in Turkey through spatial modelling

Gottschalk, Thomas K.; Ekschmitt, Klemens; İsfendiyaroğlu, Süreyya; Gem, Engin; Wolters, Volkmar

doi:10.1007/s10336-007-0155-z

Cited by 21 publications

(23 citation statements)

References 18 publications

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“…To describe environmental conditions of CG habitat, we calculated land cover, topographic and climatic variables according to their acknowledged relevance for the ecology of the species (Gavashelishvili & Javakhishvili, ; Gottschalk, Ekschmitt, Isfendiyaroglu, Gem, & Wolters, ; Habibzadeh et al, ; Habibzadeh, Karami, & Tarinejad, ; Habibzadeh & Rafieyan, ). We used the Climate Change Initiative‐Land Cover (CCI‐LC) data version 1.6 provided by the European Space Agency (ESA) at ~300˗m spatial resolution for 2010 epoch, which contained 22 primary and 16 sublevel land‐cover classes (ESA, ).…”

Section: Methodsmentioning

confidence: 99%

Differential habitat associations in peripheral populations of threatened species: The case of the Caucasian grouse

Habibzadeh

Storch

Ludwig

2019

Ecological Research

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Treating a species as an evolutionally homogenous entity over its entire range and ignoring the effect of local adaptations and the consequences of species functional response to environmental gradients can lead to misguided conservation measures. The spatially distinct Caucasian grouse (CG) (Lyrurus mlokosiewiczi) populations across discontinuous range in the Caucasus Mountains would likely possess different adaptation traits which are of importance for conservation management. Using a separate distribution model for each of four different regions with the MaxEnt technique, we investigated if CG's functional responses to habitat features differ between the core and peripheral populations and thus, the occurrence-habitat relationships could be better explained by region-specific models than a single, rangewide model. We validated the models using each region as a geographically independent dataset. The results revealed that although there was a similar response to elevation in the four regions and the species occurrence probability was highest at altitude about 2,500 m, there was a consistently higher mean annual temperature in the species' southeastern Lesser Caucasus range compared to the western and eastern parts of the Greater Caucasus region (p < 0.001). The southeastern population of CG was living under separate and unique climate conditions and did not share the same affinity to climate conditions as CG elsewhere; this may lead the species to be adapted this special climate condition through phenotypic plasticity or local adaptation. Long-term evolutionary studies are essential to confirm CG intra-specific variations, but in lack of knowledge of local adaptation, our recommendation is to treat CG as geographically distinct populations that may each require specific management.

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Section: Methodsmentioning

confidence: 99%

Differential habitat associations in peripheral populations of threatened species: The case of the Caucasian grouse

Habibzadeh

Storch

Ludwig

2019

Ecological Research

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“…Some work has been done on the grouse; e.g. its potential distribution in Turkey has been modelled (Gottschalk et al, 2007), and its nesting habitat and landscape requirements have been studied (Gavashelishvili and Javakhishvili, 2010;Habibzadeh et al, 2013). However, to date hardly any research has been done on the snowcock, despite its endemicity (Murray et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

An uncertain future for the endemic Galliformes of the Caucasus

Hof

Allen

2019

Science of The Total Environment

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Impacts of climate change are already evident in ecosystems worldwide. High-latitude and altitude regions are at greatest risk because the effects of climate change are greater in these regions, and species from these areas have limited ability to track their climate envelopes. The Caucasian snowcock (Tetraogallus caucasicus) and the Caucasian grouse (Lyrurus mlokosiewiczi) are both high-altitude specialists that are endemic to a restricted range in the Caucasus mountains of Europe. Little research has been performed to determine the status of the populations or the potential impacts of climate change. We investigated how climate and land use change may impact both species in future and determined whether their life history traits may increase their vulnerability using a combined exposure and trait-based index. We compared several climate models, and in all instances, both species showed drastic range contractions although the extent of the contraction varied with each model. Traits like habitat specialism, ground nesting and incubation period meant that both species may be considered "most vulnerable" in the exposure and trait-based index. Given that both species already occur near the maximum elevations of the Caucasus, and that they lack any dispersal capabilities due to the isolation from alternative mountainous areas, research efforts need to be prioritized to improve our knowledge about their population status, to monitor future trends and to begin developing species action plans that conserve these endemic and iconic species of Europe. Both species are flagship and umbrella species and may serve as indicator species, their protection may therefore benefit a whole range of other species inhabiting this vulnerable Alpine ecosystem. Especially the Caucasian grouse has a high aesthetic value and is favoured by hunters in the region. The potential demise of this species may therefore also be negative for local communities.

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“…Jeganathan et al. 2004 for the Jerdon’s Courser Rhinoptilus bitorquatus , Gottschalk et al. 2007 for the Caucasian Black Grouse Tetrao mlokosiewiczi ), even in areas where published distribution maps seem reliable, e.g.…”

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Primary productivity and anthropogenic disturbance as determinants of Upland Goose Chloephaga picta distribution in southern Patagonia

Pedrana

Bustamante²,

Rodrı́guez

et al. 2011

Ibis

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A species distribution may be determined by its responses to patterns of human disturbance as well as by its habitat preferences. Here we investigate the distribution of the Upland Goose Chloephaga picta, which has been historically persecuted by farmers and ranchers in Patagonia because it feeds on crops and pastures and is assumed to compete with sheep for forage. We assess whether its current breeding distribution is shaped by persecution by ranchers or whether it can be better explained by differences in habitat primary productivity and preference for wetlands, or by other anthropogenic disturbances not associated with ranching. We built species distribution models to examine the relative effect of environmental and anthropogenic predictors on the regional distribution of Upland Goose. We performed vehicle surveys in the province of Santa Cruz, Argentina, in two years, surveying 8000 km of roads and recording 6492 Geese. Generalized additive models were used to model the presence/absence of Geese in 1‐km cells. The models suggested that Upland Goose distribution is not currently affected by rancher control, as the species is more abundant in areas with high sheep stocking levels, but it is positively influenced by primary productivity and negatively influenced by urban areas. Anthropogenic disturbance caused by urban areas and oil extraction camps had a greater impact in limiting the species distribution than sheep ranching.

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Assessing the potential distribution of the Caucasian black grouse Tetrao mlokosiewiczi in Turkey through spatial modelling

Cited by 21 publications

References 18 publications

Differential habitat associations in peripheral populations of threatened species: The case of the Caucasian grouse

Differential habitat associations in peripheral populations of threatened species: The case of the Caucasian grouse

An uncertain future for the endemic Galliformes of the Caucasus

Primary productivity and anthropogenic disturbance as determinants of Upland Goose Chloephaga picta distribution in southern Patagonia

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