Diversity and distribution of the genus Scrophularia L. (Scrophulariaceae) in Uzbekistan

Tojibaev, Komiljon; Khassanov, Furkat O.; Beshko, N. Yu.; Turginov, Orzimat T.; Sennikov, Alexander N.; Chang, Kyung‐Il; Oh, Seung-Hwan; Jang, Chang‐Gee

doi:10.1016/j.japb.2019.10.004

Cited by 9 publications

(9 citation statements)

References 5 publications

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“…According to the botanical geographical regionalization of Central Asia, mountain parts of Ferghana Valley lie under the Mountain Middle Asian Province (Kamelin 1973;Tojibaev et al 2017). The L. paradoxa grows in Alay, Turkestan, and Zerafshan ridges, which surround the Ferghana Valley from the north and northeast and comprise most of the Ferghana-Alay and Kuhistan region (Figure 1).…”

Section: Study Areamentioning

confidence: 99%

“…The geomorphology of the study area is characterized by stony and rubbly slopes of mountains in the upper belt. The vegetation comprises evergreen and deciduous mixed forests and mountain shrubs above 1850 m. The local flora of the Shakhimardan River basin comprises more than 1353 vascular plants belonging to 86 families and 530 general (Tojibaev et al 2017). This region contains high species diversity and is rich in endemism and relict taxa.…”

Section: Study Areamentioning

confidence: 99%

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Distribution and conservation of the narrow sub-endemic shrub, Lonicera paradoxa in Pamir-Alay, Central Asia

DAMINOVA,

NOSIROV,

AKBAROV

et al. 2024

Biodiversitas

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Abstract. Daminova N, Nosirov S, Akbarov F, Tojibaev K, Temirov E. 2024. Distribution and conservation of the narrow sub-endemic shrub, Lonicera paradoxa in Pamir-Alay, Central Asia. Biodiversitas 25: 439-448. Lonicera paradoxa Pojark. (Lonicera ser. Alpigenae Pojark. ex A.Byalt) is a shrub with a geographically limited range. This species is included in the national red book lists of Uzbekistan, Kyrgyzstan, and Tajikistan and is considered one of the rare species in danger of extinction in nature. The species grows in a significant elevation from 1600 to 3200 m on the Northern slopes of the Alay Range, Central Asia. In this study, we investigated the geographic distribution of L. paradoxa based on scientific literature, herbarium data collections, and field surveys. We then modeled the current and potential future geographic distribution using Maxent. We also conducted a propagation study for its conservation under laboratory and greenhouse conditions. Our fieldwork in 2021-2022 found new records of L. paradoxa in Uzbekistan and Kyrgyzstan. We calculated the Extent of Occurrence (EOO) and Area of Occupancy (AOO) of the species, which were 5.08 km2 (VU) and 28 km2 (EN), respectively. Therefore, based on the IUCN Red List and Criteria, we recommend the conservation status of L. paradoxa as endangered (EN) in categories B2 ab (ii, iii, iv) + D. Our modeling prediction suggested that compared to the current, suitable habitat of L. paradoxa to reduce significantly in the future with very suitable habitats are expected to expand to the south and high mountain areas. For the first time, the conservation measures of L. paradoxa were carried out at the Tashkent Botanical Garden. The conducted research made it possible to preserve L. paradoxa in ex-situ conditions. The results of this research can be helpful in determining and planning measures for the protection of L. paradoxa in the territory of the Kyrgyz and Tajikistan Republics, both now and in the future.

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Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Distribution and conservation of the narrow sub-endemic shrub, Lonicera paradoxa in Pamir-Alay, Central Asia

DAMINOVA,

NOSIROV,

AKBAROV

et al. 2024

Biodiversitas

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“…The geological structure of the Aktau Range is represented mainly by limestones, marbles, granitoids, granodiorites, diorites, schists and sandstones. Mesozoic-Cenozoic deposits (conglomerates, limestones, sandstones, variegated beds, siltstones, dolomites, gypsum, marls and clays) predominate in the foothills, whereas the piedmont plain is composed by loess-like and sandy loams, marls, clays and pebbles (Atlas of the Uzbek SSR 1982; Tojibaev et al 2017).…”

Section: Study Areamentioning

confidence: 99%

“…Such features of this area as low altitude, small area and already low precipitation make the Nuratau Mountains especially vulnerable to aridi cation predicted for Central Asia by all existing climatic models (Lioubimtseva & Henebry 2009). Especially disturbing fact is that the only strictly protected area in this region, the Nuratau Nature Reserve, is 177.52 km 2 covering very small part (1.27%) of the Nuratau phytogeographical district territory (Tojibaev et al, 2017).…”

Section: Introductionmentioning

confidence: 98%

“…Phytogeographically, the Nuratau Mountains belong to Nuratau dictrict of Mountain Central Asian province of the Irano-Turanian region of Tethyan (Ancient Mediterranean) oristic subkingdom of Holarctic (Takhtadzhi a n 1986; Kamelin 1990;Tojibaev et al 2016Tojibaev et al , 2017. Due to the arid conditions of this area, more than 90% of the ora are herbaceous plants, and 33.3% of them are annuals.…”

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How to preserve narrow endemics in view of climate change? The Nuratau Mountains as the case

Volis¹,

Beshko

2023

Preprint

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Endemic species usually have higher risk of extinction than widespread species and therefore for endemics negative effects of climate change can be especially dramatic. The Nuratau Mountains, located in Uzbekistan, are rich in endemic species and are a part of the Mountains of Central Asia Global Biodiversity Hotspot and one of Key Biodiversity Areas. To understand consequences of the climate change for a group of endemic plant species found in this region we conducted species distribution modelling (SDM) and produced species maps of habitat suitability, as well as maps of predicted endemic species richness under current and expected future climatic conditions. From the obtained information we assessed i) how well the existing in the region protected area (Nuratau Nature Reserve) protects the local endemics, and ii) what should be done to preserve these species under the expected future warming. Among 27 studied species, 14 appear to be the true narrow endemics because their predicted range is mostly or totally confined to the Nuratau Mountains. The remaining species have a wide predicted range of which the Nuratau Mountains are only a small part. Majority of the Nuratau endemics will have no climatically suitable habitat under the Rcp85 scenario in the Nuratau Mountains or surrounding ranges. Only seven species will have suitable habitats within the Nuratau Mountains and only five of them will have suitable habitat within the protected territory of the Nuratau Nature Reserve. For six species there will be no suitable area in the whole study area. Surprisingly, 13 species will have a suitable habitat in the Kugitang Range where Surkhan Nature Reserve is located. We suggest as the most appropriate climate change adaptation strategy for these Nuratau endemics the artificial increasing their dispersal capacity via in situ introduction trials and the creation of new populations in Surkhan Nature Reserve.

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Mapping Asia Plants: Current status of floristic information for Central Asian flora

Tojibaev

Hisoriev

et al. 2020

Global Ecology and Conservation

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Diversity and distribution of the genus Scrophularia L. (Scrophulariaceae) in Uzbekistan

Cited by 9 publications

References 5 publications

Distribution and conservation of the narrow sub-endemic shrub, Lonicera paradoxa in Pamir-Alay, Central Asia

Distribution and conservation of the narrow sub-endemic shrub, Lonicera paradoxa in Pamir-Alay, Central Asia

How to preserve narrow endemics in view of climate change? The Nuratau Mountains as the case

Mapping Asia Plants: Current status of floristic information for Central Asian flora

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