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- ArticleAçık Erişim2026First Population Assessment Report, Suitable Habitat and Ecological Corridors of the Endangered Kashmir Gray Langur Morphotype (Semnopithecus ajax, Pocock 1928) in Khyber Pakhtunkhwa, Pakistan
Ali, Abid; Rössel-Ramírez, David Walter; Jan, Arif; Sari, Idris; Martín-Taboada, Adrián; Juan-Rueda, Jorge; Djukanovich-Iturbe, Milenka; Zaman, Iftikhar U-; López-Bao, José Vicente; Khan, Muhammad Noman
The Himalayan Kashmir langur (Semnopithecus ajax) is an endangered colobine of the northwestern Himalayas, occurring in India and Pakistan; yet its ecology remains poorly studied. In Pakistan, it is known from Azad Jammu and Kashmir (AJK) and the northern districts of Khyber Pakhtunkhwa (KPK) but populations restricted to KPK has been neglected until the data. In this regard, we conducted 60 line-transect surveys (118.2 km) across 69.5 km² in three KPK districts—Mansehra, Kohistan, and Battagram—to estimate population density and abundance. Further, we modeled habitat suitability and connectivity modeling of langurs across its known range in Pakistan. The current study revealed mean density across the surveyed districts was 4.5 individuals/km² (95% CI: 2.3–6.7), with substantially higher densities in Mansehra (7.4; 95% CI: 3.3–11.5) compared to Kohistan–Battagram (KB) (1.3; 95% CI: 0.1–2.5). The total population in the study area was estimated at 314 individuals (95% CI: 143–485), with ~86% concentrated in Mansehra. Habitat suitability modeling (AUC = 0.96) identified four major suitable niche zones (SNZ) (~2,953 km²) across Pakistan, primarily montane forests between 1,300–3,100 m with > 40% canopy cover, though only ~82 km² (~1%) overlapped with existing protected areas. Connectivity analysis indicated forested corridors linking these niche zones, while fragmentation reduced connectivity in several regions. Our findings demonstrate that the langur persists in Pakistan as a small, fragmented, and forest-dependent population. Conservation of this threatened species will require improved forest protection, management of habitat corridors, and coordinated transboundary conservation efforts across its Himalayan range.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2025Beauty demands sacrifices: is it possible to overcome both climate change and anthropogenic impact for Pamir-Alay Tulips (Liliaceae)?
Davron, Dekhkonov; Temur, Asatulloev; Umida, Tojiboeva; Sari, Idris; Shoxida, Abdupattaeva; Shuxrat, Abdullayev; Weibang, Sun; Ziyoviddin, Yusupov; Komiljon, Tojibaev Sh.
Tulipa (Liliaceae) is a well-known ornamental plant that supports a horticultural trade worth over a billion euros. Existing research highlights the expanding array of risks faced by Tulipa species, with climate change emerging as a significant and escalating threat. However, the fate of phytogeographically restricted red-flowering species of tulips in the Pamir-Alay mountain system is crucial, as they are also harvested by local people or visitors purely for their ornamental attractiveness. To study this, 41 bioclimatic and ecologic variables were utilized in the investigation. The suitable areas for T. ingens are expected to increase nearly twofold, while for T. affinis and T. carinata, they will remain constant. However, suitable habitats for T. tubergeniana are projected to decrease considerably. Surprisingly, the western Tian-Shan, where these species are not native, was highlighted as climatically suitable and may be an important area for translocation efforts in the future for T. affinis, T. carinata, and T. ingens. We also identified protected areas that could provide suitable habitats for these species. Additionally, we recommend creating living collections of T. tubergeniana, given the significant decrease in suitable habitat. Ultimately, relocating these species to protected regions with projected suitable habitats plays a crucial role in supporting their survival.
RDL Kalıcı Kaydıİncele - ArticleAçık Erişim2023Suitable habitat prediction with a huge set of variables on some Central Asian tulips
Davron, Dekhkonov; Temur, Asatulloev; Umida, Tojiboeva; Sari, Idris; Komiljon, Tojibaev Sh.
Tulipa (Liliaceae) is cultivated as an ornamental plant worldwide and its wild representatives hold valuable genetic resources for breeders are facing the effects of climate change in Central Asia like all of wild plant species. Therefore, the effects of climate change on two Central Asian species (T. korolkowii Regel and T. lehmanniana Mercklin) plus the current suitable habitat for two endemics (T. intermedia Tojibaev and J.J. de Groot, T. scharipovii Tojibaev) to Uzbekistan and one endemic (T. ferganica Vved.) to Ferghana Valley were investigated in the study. Because endemic species are valuable for any territory, we cannot trust a limited number of variables that are commonly used for modeling distribution of species. For that, 41 bioclimatic and ecologic variables were utilized in the investigation. The results showed that T. lehmanniana is a species most affected by climate change, while T. korolkowii appears low necessity for its conservation action. Tulipa ferganica mainly grows in some protected areas of Kyrgyzstan which cannot provide protection against climate change and this may help to mitigate its extinction caused by human-driven disturbance. Thus, the conservation implications of these results are discussed.
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