Sürdürülebilir Kalkınma Amaçları
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- MakaleYalnız künye2025First evidence of the genetic structure of Neurergus strauchii munzurensis
Bozkurt, Emin; Kurnaz, Muammer; Avci, Aziz; Sahin, Mehmet Kuersat; Üzüm, Nazan; Olgun, Kurtulus
Until 2016, two subspecies of Neurergus strauchii were identified; at this time, one more subspecies was described from Tunceli as N. s. munzurensis. However, this study mainly focused on morphological characters. We aim to test of Neurergus species, including N. s. munzurensis taxa by phylogenetic analysis, using partial base sequences of 12S rRNA and D-loop genes. For this purpose, we reconstructed Bayesian Inference and Maximum Likelihood trees with other Neurergus samples. According to the results, phylogenetic tree topologies demonstrate that N. crocatus was separated from the N. strauchii-N. barani lineage and the N. strauchii group have shown monophyly. Also, N. s. munzurensis showed higher genetic distances with N. barani (1.1%) and N. s. strauchii (0.8%) while genetic distances were only determined as 0.5% within N. barani and N. s. strauchii. N. s. munzurensis was found to be a genetically distinct taxon, following its previous morphological description. This study obtained the first evidence on better explaining the taxonomic status of N. s. munzurensis.
- MakaleYalnız künye2022Predicted current and future distribution of the fire salamander, Salamandra infraimmaculata in Turkey
Kurnaz, Muammer
Although the fire salamander, Salamandra infraimmaculata, is relatively distributed in a broad area in the Middle East, it lives in a narrow area in southeast and south Anatolia in Turkey. The habitats of the species have been downgraded day by day, and its IUCN category is listed as "NT, and the population trend is decreasing. Within the scope of this study, a model was created with the existing locality records of the species using ecological niche modeling. As a result of this model, the current and future distribution of the species were compared. The results obtained from the analyzes made within the scope of this study showed that the current probable distribution of the species coincides with the existing locality records. However, for possible climate change scenarios, the possible future distribution of the species will be thought to be negatively affected by the increase in the greenhouse gas effect, the change in the amount of carbon dioxide, and the increase of many harmful gas concentrations in the atmosphere. If all four climate scenarios proposed in this study in the future occur sequentially, the species will have to limit or change its range, and even become will be extinct in some areas. Species conservation action plans should be initiated, and local governments should take necessary measures to prevent this from happening.
- MakaleYayıncıda açık erişim2021A contribution to the biogeography and taxonomy of two anatolian mountain brook newts, neurergus barani and n. Strauchii (amphibia: Salamandridae) using ecological niche modeling
Kurnaz, Muammer; Şahin, Mehmet Kürşat
The Anatolian newt, Neurergus strauchii, is an endemic Anatolian species. Until recently, N. strauchii was represented by three subspecies. It has been discussed within a recent phylogenetic study in which the subspecies N. s. barani is recommended to be evaluated as a cryptic but distinct species. To address this subject, we aimed to discuss the niche differentiation between N. barani and N. strauchii using geographical and bioclimatic aspects. All georeferenced data of N. barani and N. strauchii were used to estimate the potential distributions of these species in the Anatolian Peninsula. To evaluate their ecological niche differentiation, point-based analysis and niche similarity tests were done. Ecological niche modeling outcomes demonstrated a significant niche differentiation between N. barani and N. strauchii. Moreover, since these species are distributed in the east and west of the Euphrates Basin, this river might be considered as a geographic barrier that can cause isolation for these species. Lastly, we demonstrated their potential distributions for future with several scenarios. Our findings strengthened the results of the recent phylogenetic study and indicated the necessity of handling “barani” taxa at the species level. Moreover, these results contribute, as a piece of evidence, to the biodiversity of Anatolia where another endemic species lives.