Browsing by Author "Evcin Ö."

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Biodiversity of gavurdag wildlife development area
(2017-07-01) Güney K.; Küçük Ö.; Aktürk E.; Evcin Ö.
Natural resources are depleting due to detrimental effects of human interventations. The preservation and rehablitation of these areas are critical. It is very important to identify existing floristic and faunistic elements of these sites for management and future studies. The main purpose of these strategies is to protect and develop the target species and other resource values of the protected area. Besides this, it is also aimed to protect the floristic and faunistic value of the conservation area, in other words protecting the biodiversity. It is aimed to investigate and document the floristic and faunistic values in Gavurdag Wildlife Development Area in this study. According to floristic results, 618 plant taxa were found and 97 of them were detected as endemic in the study field (Endemism ratio: 15.7%). Moreover, when the IUCN categories are examined; 7 species are found to be in En category and 10 species are found to be in the Vu category. In addition, 15 mammal and 64 bird species were detected with faunal research in the field.
Can highway tunnel constructıon change the habitat selection of roe deer (Capreolus capreolus Linnaeus, 1758)?
(Springer Science and Business Media Deutschland GmbH, 2023) Evcin Ö.
One of the main things wildlife does for survival is movement. Wild animals need movement to meet their needs, such as reproduction, breeding, foraging, and dispersal. Although wildlife species use roads for various purposes, they also use them when moving from one habitat to another. In recent years, especially when it comes to habitat fragmentation brought about by urbanization, wild animals frequently use highways. Highways have a wide range of effects on factors such as biodiversity, wildlife, and ecology. Roads can cause habitat loss, habitat fragmentation, and habitat degradation; alter the composition of vegetation; act as barriers to the flow of genes and movement; increase human access to pristine areas; and even increase the risk of extinction for many threatened species. Species belonging to the family Cervidae also include the species most affected by road networks. Roe deer (Capreolus capreolus Linnaeus, 1758) is the smallest of the 3 Cervid species living in Turkey. Roe deer are often injured or die in road accidents, and they are one of the most important species affected by the adverse effects of roads in Turkey. For this reason, it was investigated whether the road tunnel construction affected the distribution of roe deer in the region. In the study, the general distribution of roe deer in the Ilgaz Mountain, and the factors affecting their possible distribution were determined by ecological niche modeling. Data were taken between before (2012–2015) and after the highway tunnel built (2020–2022) in Ilgaz Mountain, which connects the Western Black Sea and Central Anatolia and is located in the middle of Kastamonu and Çankırı provinces. As a result of the modeling, it was found that before the construction of the tunnel, the most influential factor in the distribution of the deer was road density. After the tunnel construction, roads ceased to be the main factor affecting the distribution of the species. This study showed that roe deer are disturbed by the density of vehicles on the road passing through the middle of their habitat. With the decrease in the number of vehicles, they are more willing to cross the road and tend to use the areas close to the road as they are less disturbed
Effects of stand composition and site index of pine forests on bark beetle, ips sexdentatus (Coleoptera: Curculionidae: Scolytinae) population
(2017-08-01) Akkuzu E.; Güzel H.; Evcin Ö.
Various biotic and abiotic factors influence the population dynamics and severity of damage in a forest. This study investigated the effects of stand composition and site index of pine forests on Ips sexdentatus (Boerner) populations. Two main objectives of this study were a) to compare the effects of two different black pine stands of site index-I (high site productivity) and site index-III (low site productivity) and b) to compare the pure and mixed pine forests concerning the abundance and body length of I. sexdentatus. The results showed that 1) density of I. sexdentatus were greater in pure forests than mixed ones, 2) density of I. sexdentatus were grater in stands with site index-III than those with site index-I, and 3) the body length of the pest did not differ significantly between two site productivity classes and between two stand compositions.
Threat analysis and proposed solutions for elekdag wildlife development area
(2017-07-01) Küçük Ö.; Güney K.; Evcin Ö.; Aktürk E.
Natural Wildlife Development Area is a protection status declared in accordance with the Land Hunting Act No. 4915. Within this scope, there are 80 Wildlife Development Areas in our country. The aim of this study was to observe possible threats in the Elekdag wildlife development area and to suggest solutionsfor the area. Elekdag Wildlife Development Area is located in Kastamonu province within the boundaries of Tasköprü county. The administrative responsibility of Elekdag Wildlife Development Area belongs to the General Directorate of National Parks and Nature Conservation, which is affiliated to the Ministry of Environment and Forestry, Kastamonu Provincial Environment and Forestry Directorate. As a result of the study, it was found that the wildlife habitats for deer populations (target species) and water resources in the area at risk. The identification of the risks on habitats and biological resources and proposed solutions have great importance on ecosystem integrity of the protected area. Therefore, we proposed some solutions to eliminate these risks. The most important factor is the arranging on-site management to ensure sustainable protection-use balance.