Sürdürülebilir Kalkınma Amaçları
Yayınlar
- MakaleAçık Erişim2022A new cryptic species of the Darevskia parvula group from NE Anatolia (Squamata, Lacertidae)
Arribas, Oscar; Candan, Kamil; Kurnaz, Muammer; Kumlutaş, Yusuf; Caynak, Elif Yıldırım; Ilgaz, Çetin
In this study, we re-examine the Darevskia parvula group comprehensively using morphology, osteology and mitochondrial phylogeny, and describe a new endemic species from Turkey: Darevskia tuniyevisp. nov. A total of 257 adult specimens were evaluated for external morphology (scalation and biometry) with univariate (descriptive statistics and ANOVA with post-hoc tests) and multivariate (Discriminant Analysis and ANOSIM) analyses. In parallel, osteological data and molecular analyses using three DNA markers (mitochondrial 16S rRNA and Cyt-b, nuclear Rag-1) were used to complete the description of the new taxon. The molecular phylogenetic analyses indicated that the D. parvula group is composed of three taxa as D. parvula, D. adjarica and D. tuniyevisp. nov., and showed that D. adjarica and D. tuniyevisp. nov. are reciprocal sister taxa. On the other hand, D. adjarica is morphologically very different from other two forms, while D. parvula is hardly distinguishable externally from D. tuniyevisp. nov. Therefore, we can consider that D. parvula and D. tuniyevisp. nov. are cryptic species. These two cryptic species retain their primitive morphology within the group, while D. adjarica has changed, perhaps due to different bioclimatic conditions in its Pleistocene refuge and current area.
- MakaleAçık Erişim2021Unusual Winter Activity Observations of Two Newt Species (Ommatotriton ophryticus & Triturus ivanbureschi) from the Anatolian Peninsula
Sahin, Mehmet Kursat; Kurnaz, Muammer
Interactions between the internal regulation and the environment drive thebiophysiological patterns of amphibians. It is well known phenomenon that newts in the northernhemisphere are tend to have hibernation strategies in winter seasons. However, the winter activityrecord for newts is quite rare. Therefore, we would like to report two winter activity cases fromAnatolia, Turkey via two newt species: The northern banded newt (Ommatotriton ophryticus) fromOrdu and Balkan crested newt (Triturus ivanbureschi) from Çanakkale. The striking outcomes ofthis study are that the Northern Banded Newt demonstrates winter activity from another localityapart from Trabzon, and the Balkan Crested Newt has been observed in winter for the first time inits natural habitat. However, it is more important that to document these winter activities areremarkable to provide valuable preliminary data for interpreting the global climate changedynamics in local cases.
- MakaleYalnız künye2021Contribution to the taxonomic knowledge of acanthodactylus (Squamata, lacertidae): Description of a new lacertid lizard species from eastern anatolia, turkey
Kurnaz, Muammer; Şahin, Mehmet Kürşat
Acanthodactylus Wiegmann, 1834 is one of the most diverse and widespread lizard genus in the Palearctic realm. Here, we describe a new species, - Acanthodactylus ilgazi sp. nov. - from the Anatolian Peninsula. This new species ranges approximately 250 km north from the closest population of this genus in Turkey. Compared to other fringe-fingered lizards, the new species is phylogenetically close to A. robustus, A. tristrami and A. orientalis but it has some distinct morphological characteristics: Reddish coloration under the tail, a sharp white or grayish stripe in the middle of the dorsum, and four plates in a row on the 4th finger. Moreover, phylogenetic molecular data, based on cyt b gene fragment, verifies that the new species is phylogenetically a member of the tristrami species group with 13.03%, 17.35% and 20.56 genetic distance respectively from A. orientalis, A. tristrami and A. robustus. Lastly, the known range of this species, located in Yazıhan, Malatya in Eastern Anatolia, is restricted by a dam, thus habitat loss endangers its continuity. Therefore, the conservation status of this species should be assessed immediately.
- 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.
- MakaleAçık Erişim2021A Contribution to the Biogeography of Ablepharus anatolicus and A. budaki (Squamata: Scincidae) Using Ecological Niche Modeling in Turkey
Kurnaz, Muammer; Yousefkhani, Seyyed Saeed Hosseinian
The Anatolian Peninsula is very richly biodiverse in terms of its location and with new studies, this wealth has gradually increased as new taxa of Anatolian origin are added to the literature. Ablepharusbudaki and A. anatolicus, formerly considered to be subspecies of A. kitaibelli and A. budakirespectively, are spread throughout the southern part of Anatolia. Although recent phylogenetic andmorphological studies revealed their species status, no information was given about the relation of thespecies with each other in terms of ecological niche. In this study, our primary goal was to discoverwhether the niches of these two taxa were different from each other. Considering the analyses madewithin the scope of this study, it has been revealed that both A. anatolicus and A. budaki are differentfrom each other in terms of their ecological niche. However, since these two taxa have very smallcontact regions, an example of parapatric speciation, and their distribution areas cover almostcompletely different geographies, we can say that they have different ecological niche requirements,according to the results of this study. As a result, this study supported the findings in literature and theidea that these taxa are two different species