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Öğe Can attractant combined yellow sticky traps be used integrated pest management of invasive chestnut gall wasp [Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae)]?(Springer Int Publ Ag, 2025) Sarikaya, Oguzhan; Gencal, Tutku; Kadiogullari, Ali Ihsan; Yildiz, Yafes; Sarikaya, Ayse Gul; Gencal, Burhan; Sen, IsmailThe chestnut gall wasp, Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae), was detected for the first time in Turkiye in 2014. The effectiveness in trapping the chestnut gall wasp by using sticky attractant traps combined with attractants during its active flying period was determined. The combination of yellow sticky traps with a mixture of 90% beer and 10% granulated sugar can have a significant impact on the populations of the pest. This method offers a high success rate in chestnut production regions due to reasons such as their success in attracting chestnut gall wasp adults, the fact that they do not have any negative effects on biological control studies carried out using Torymus sinensis, and offers an effective solution for chestnut gall wasp control without negative effects on nature and the environment.Öğe Effect of climate change on current and future potential distribution of Strawberry tree (Arbutus unedo L.) in Turkiye(Nature Portfolio, 2024) Sarikaya, Ayse Gul; Uzun, Almira; Turan, Funda DilaThe demand for nontimber forest products (NTFPs) has increased significantly in recent years. Hundreds of plant species that grow naturally in T & uuml;rkiye have medicinal and aromatic value. Medicinal and aromatic plants are primarily used as a sources of tea, spices, condiments and essential oils. Species belonging to the genus Arbutus L. are used for decorative purposes and as fuel wood in many wood-based industries, they also have a wide range of uses in packaging, chairs making and furniture production. Additionally, the fruits of these trees are widely consumed by humans and animals because they are rich in sugar and vitamin C. It is predicted that changes in climatic conditions will significantly change the distribution, composition and function of forests threatening biodiversity. The purpose of this study was to model current and future potential geographical distributions of Arbutus unedo L., which is among the species that naturally grow in T & uuml;rkiye and is of substantial value in terms of its ecological contribution to forest ecosystems, based on species presence data and environmental variables (bioclimatic variables and altitude). The current and future distribution area models for Arbutus unedo L. indicate that the potential distribution areas of the species in the coming years will gradually decrease, and in the SSP5 8.5 model, which represents the highest level of world resource usage this gradual decrease will reach its highest level and there will be no suitable distribution area left for the species. Therefore, it is predicted that the species will become endangered. In-situ and ex-situ conservation measures need to be taken to ensure the sustainability of the species in forestry and landscape areas.Öğe Effect of climate change on potential distribution areas of the invasive oak lace bug [Corythucha arcuata (Say, 1832)] (Heteroptera: Tingidae) on oak forests of Turkiye(Springer Heidelberg, 2025) Sarikaya, Oguzhan; Gencal, Tutku; Uzun, Almira; Sarikaya, Ayse Gul; Yildiz, YafesThis study aimed to model the current and future (2041-2060 and 2081-2100) potential distribution areas of the oak lace bug Corythucha arcuata (Say, 1832) with the HadGEM3-GC31-LL model according to the SSP2 and SSP5 emission scenarios. Pearson correlation analysis was performed to select the bioclimatic data to be included in the model. The following seven climatic variables were used: annual mean temperature, maximum temperature in the warmest month, mean temperature during the wettest quarter, mean temperature during the driest quarter, annual precipitation, precipitation seasonality and precipitation during the driest quarter. The current potential distribution area model for C. arcuata established with the Maxent algorithm shows that this species is concentrated in the Marmara and Black Sea regions. According to the HadGEM3-GC31-LL climate change model and the SSP2-45 scenario, during the 2041-2060 (similar to 2050) period, there will be a general narrowing in the species distribution area, with suitable and highly suitable areas concentrated in some regions of Marmara, along the Black Sea coastline, and in the interior. Therefore, state forestry authorities should implement precautions for this pest in oak stands in northern Turkiye.Öğe Larvicidal Effect of Some Essential Oils Against Larvae of the European Pine Sawfly [Neodiprion Sertifer (Geoff.)](Int Journal Lifescience & Pharma Research, 2022) Sarikaya, Oguzhan; Sarikaya, Ayse Gul; Sen, Ismail; Gencal, TutkuMany of the species that cause damage to pine trees by feeding on needle leaves, and trees without leaves may be vulnerable to secondary pests as well as increment loss. One of the important leaf pests that damage Turkish red pine (Pinus brutia) and the Anatolian Black pine (Pinus nigra A.Rich) in Turkey is the pine sawfly Neodiprion sertifer (Geoff.). Only mechanical and chemical control methods are carried out with this pest. Due to the negative effects of chemical control methods on the ecosystem and nature, alternative methods have come to the fore front in recent years. One of them is the use of essential oils against harmful insects. The aim of the study is determine to larvicidal effects of some essential oils against larvae of N. sertifer. To achieve of this aim our objective is applied three different dosages (0.1%, 0.5% and 1.0%) of essential oils obtained from Eucalyptus camaldulensis, Melissa officinalis and Origanum onites plants to the 4th and 5th instar larvae of pine sawfly. Trials were carried out in the laboratory under controlled conditions ( 25 +/- 5 degrees C temperature and 65 +/- 5% proportional humidity). Dead larvae in each box were counted 12, 24, 36 and 48 hours after application. According to the application dosages, the highest deaths of N. sertifer larvae occurred at 1% doses of all three essential oils. It was observed that the larval mortality rates increased as the dosages increased. As a result, essential oils of all three plant species were found to be hopeful in the controlling of N. sertifer, of which essential oil of O.onites was found more effective on the 4th and 5th instar larvae than the essential oils of the other two plant species. They have shown that essential oils can be a potential alternative to synthetic insecticides in the control of pine sawfly.Öğe Modeling the Effects of Climate Change on the Current and Future Potential Distribution of Berberis vulgaris L. with Machine Learning(Mdpi, 2024) Sarikaya, Ayse Gul; Uzun, AlmiraSpecies of the Berberis genus, which are widely distributed naturally throughout the world, are cultivated and used for various purposes such as food, medicinal applications, and manufacturing dyes. Model-based machine learning is a language for specifying models, allowing the definition of a model using concise code, and enabling the automatic creation of software that implements the specified model. Maximum entropy (MaxEnt 3.4.1) is an algorithm used to model the appropriate distribution of species across geographical regions and is based on the species distribution model that is frequently also used in modeling the current and future potential distribution areas of plant species. Therefore, this study was conducted to estimate the current and future potential distribution areas of Berberis vulgaris in T & uuml;rkiye for the periods 2041-2060 and 2081-2100, according to the SSP2 4.5 and SSP5 8.5 scenarios based on the IPSL-CM6A-LR climate change model. For this purpose, the coordinates obtained in the WGS 84 coordinate system were marked using the 5 m high spatial resolution Google Satellite Hybrid base maps, which are readily available in the 3.10.4 QGIS program, the current version of QGIS (Quantum GIS). The CM6A-LR climate model, the latest version of the IPSL climate models, was used to predict the species' future distribution area. The area showed a high correlation with the points representing B. vulgaris, which is generally distributed in the Mediterranean and the central and eastern Black Sea regions of T & uuml;rkiye, and the very suitable areas encompassed 45,413.82 km(2). However, when the SSP2 4.5 scenario was considered for the period 2041-2060, the areas very suitable for Berberis vulgaris comprised 59,120.05 km(2), and in the SSP2 4.5 scenario, very suitable areas were found to encompass 56,730.46 km(2) in the 2081-2100 period. Considering the SSP5 8.5 scenario for the period 2041-2060, the area most suitable for the B. vulgaris species is 66,670.39 km(2). In the SSP5 8.5 scenario, very suitable areas were found to cover 20,108.29 km(2) in the 2081-2100 period. Careful consideration of both the potential positive and negative impacts of climate change is essential, and these should be regarded as opportunities to implement appropriate adaptation strategies. The necessary conditions for the continued existence and sustainability of B. vulgaris-that is, areas with ecological niche potential-have been determined.Öğe Modelling the potential distribution of the endemic oak Quercus vulcanica Boiss. & Heldr. ex Kotschy in Turkey from the last interglacial to the future: From near threatened to endangered(Bogucki Wydawnictwo Naukowe, 2022) Sarikaya, Ayse Gul; Orucu, Omer Kamil; Sen, Ismail; Sarikaya, OguzhanThe aims of this study are to model past (LIG, LGM and Mid-Holocene), present and future (2050 and 2070) distributions of the Quercus vulcanica Boiss. & Heldr. ex Kotschy by using Maximum Entropy, and to predict suitable areas for the conservation of the species for future planning. MaxEnt distribution modeling was used to model distributions. Results for past bioclimatic conditions show that the distribution area of the species expanded and then contracted (LIG to LGM and LGM to HOL). The modelling shows that the distribution range of the species will be narrower in the future. The species will be facing extinction towards 2070. Therefore, the conservation status of the species should be evaluated according to the present findings. Although the largest population of the Q. vulcanica is found in Isparta and Afyonkarahisar Provinces located in Southwestern Turkey, this area will not be suitable for the growth and survival of the species in the future. For this reason, a new nature reserve area should be established in a more suitable climate.Öğe Morphological and Volatile Profiles of Phlomis russeliana and Phlomis armeniaca from Uluda'g, TEirkiye(North Carolina State Univ Dept Wood & Paper Sci, 2025) Sarikaya, Ayse Gul; Ilhan, BetulThe medicinal and aromatic plant species naturally found in TOrkiye are particularly noteworthy. Among them, Phlomis L., a genus within the Lamiaceae family, stands out for its numerous species. This study, conducted in Uludag (Bursa), aimed to analyze the morphological traits, volatile components, ratios, and molecules present in the leaves and Samples were collected during their flowering period using a random sampling method. Their morphological characteristics were analyzed using Microsoft Excel and IBM SPSS software, while the volatile components of the leaf and flower samples were identified through the HSSPME/GC-MS method. The morphological characteristics of Phlomis russeliana and P. armeniaca were examined in detail. The leaf widths and lengths, petiole lengths, number of flowers, petal lengths, sepal lengths were measured. 32 different components were identified in P. russeliana and 43 different components in P. armeniaca, summing up to 56 different components. The main components identified were caryophyllene (31.6%; 26.4%), (E)-I3-farnesene (19.6%; 25.2%), and germacrene-D (25.7%; 16.5%), respectively. Such studies are crucial for enhancing the protection and sustainable management of non-wood forest products, which significantly contribute to our country's economy and play a pivotal role, especially in rural economies.Öğe Phenological observation of Leucojum aestivum L. and determination to some morphological features and current and future potential distribution areas depending on climate change(Elsevier, 2023) Sarikaya, Ayse Gul; Kavakli, Seydi Ahmet; Uzun, AlmiraLeucojum aestivum is a perennial bulbous plant belonging to the Amaryllidaceae family. Climate change causes an increase in the danger of plant species extinction by producing negative effects on biodiversity and geographical distribution of species. In this study, phenological observations were obtained from L. aestivum populations, which are naturally distributed in Bursa Karacabey, then the morphological characteristics were determined. Also, MaxEnt programme was used to determine the current and future potential distribution areas of the L. aestivum populations in terms of climate change. The plant height of L. aestivum was determined to be an average of 60.92 +/- 10.38 cm. The width of the bulbs was 31.30 +/- 6.77 mm on average, and also the mean length was 34.67 +/- 6.22 mm. The mean weight was 21.35 +/- 11.74 g. The mean width of the broad linear leaves is 12.61 +/- 3.50 mm and also 51.53 +/- 15.38 cm for their mean length. The mean width of the white flowers was 22.97 +/- 4.01 mm and mean length was 20.56 +/- 1.80 mm. The mean flower stalk length was found to be 36.62 +/- 17.33 mm. The number of flowers was an average of 5.54 +/- 1.21. The mean anther length was 8.98 +/- 1.01 mm. The mean length of the pistil was found to be 11.93 +/- 0.84 mm. The mean width of the fruits was 20.86 +/- 3.62 mm. The number of fruits was found to be a minimum of 1 and maximum of 7 with an average of 2.12 +/- 1.61. The mean width of the seeds was 6.58 +/- 0.50 mm; and also the number of seeds was found to be at least 1 and at most 26 with an average of 8.16 +/- 4.90. According to the outputs of the two scenarios, which we evaluated as mild or strict, while no situation was present that would endanger the extinction of the species in Turkey over the next 80 years based on the SSP1-2.6 scenario; however serious reductions in the distribution areas of the species based on the SSP5-8.5 scenario. For this reason, in-situ and ex-situ conservation measures should be taken according to the species and their habitat requirements, and it is suggested to impose various conservation based sanctions and restrictions apart from these measures.Öğe Predicting of the current and future geographical distribution of Laurus nobilis L. under the effects of climate change(Springer, 2023) Akyol, Ayhan; Orucu, Omer K.; Arslan, E. Seda; Sarikaya, Ayse GulToday, climate change affects all living things on earth. It also leads to serious losses in terms of biodiversity, ecosystem services, and human welfare. In this context, Laurus nobilis L. is a very important species for Turkey, and the Mediterranean countries. This research aimed to simulate the current distribution of the suitable habitat for L. nobilis in Turkey and to predict its possible range shifts in future climate scenarios. To predict the geographical distribution of L. nobilis, the study used the maximum-entropy algorithm-based MaxEnt 3.4.1 with seven bioclimatic variables created using the Community Climate System Model 4.0 (CCSM4) and the prediction models RCP4.5-8.5 for the years 2050-2070. The results indicated that the most important bioclimatic variables that shape the distribution of L. nobilis are BIO11-mean temperature of coldest quarter, and BIO7-annual temperature range. Two climate change scenarios predicted that the geographical distribution of L. nobilis would increase slightly and then decrease in the future. However, the spatial change analysis showed that the general geographical distribution area of L. nobilis did not change significantly, but the moderate, high, and very high suitable habitats changed towards low suitable habitats. These changes were particularly effective in Turkey's Mediterranean region, which shows that climate change is instrumental in determining the future of the Mediterranean ecosystem. Therefore, suitability mapping and change analysis of potential future bioclimatic habitats can help in planning for land use, conservation, and ecological restoration of L. nobilis.Öğe Prediction of present and future distribution areas of Juniperus drupacea Labill and determination of ethnobotany properties in Antalya Province, Türkiye(De Gruyter Poland Sp Z O O, 2024) Turkmenoglu, Guliz; Sarikaya, Ayse Gul; Uzun, Almira; Fakir, HuseyinEthnobotanical studies revealed the experience and knowledge of people who learned the therapeutic virtues of plants through trials and errors and transferred their knowledge to the next generations. This study determined the ethnobotanical use of Juniperus drupacea (Andiz) in the Antalya province and the current and future potential distribution areas of J. drupacea in T & uuml;rkiye during 2041-2060 and 2081-2100 according to the SSP2-4.5 and SSP5-8.5 scenarios and based on the IPSL-CM6A-LR climate change model. The very suitable areas encompassed 22379.7 km(2). However, when the SSP2-4.5 scenario was considered, the areas most suitable for J. drupacea comprised 6215.892 km(2) for 2041-2060 and 378.318 km(2) for 2081-2100. Based on the SSP5-8.5 scenario, the area most suitable for J. drupacea was 979.082 km(2) for 2041-2060. However, no suitable areas were identified with the SSP5-8.5 scenario for 2081-2100. Considering the models for the future estimated distribution areas of J. drupacea, serious contractions endangering the species are predicted in its distribution areas. Therefore, scientific research should focus on identifying J. drupacea populations and genotypes that demonstrate resilience to future drought conditions resulting from climate change. This endeavor is crucial as it holds significant ecological and economic values.Öğe SOME MORPHOLOGICAL CHARACTERISTICS AND PHENOLOGICAL STAGES OF CRATAEGUS MONOGYNA JACQ. VAR. MONOGYNA ACCORDING TO THE BBCH SCALE(Parlar Scientific Publications (P S P), 2021) Sarikaya, Ayse Gul; Guclu, Sultan FilizThis study was performed to determine several morphological and phenological properties of the Crataegus monogyna Jacq. var. monogyna, which is naturally distributed in Atabey, a district rich in biodiversity. Morphological characteristics of leaves, such as size, breadth, stalk length, number of lobes and fruit size, diameter, and weight. Inflorescences have been measured in order to determine the morphological characteristics. Phenological growth stages were recorded by observations according to the Bundesanstalt, Bundessortenamt and Chemical Industries (BBCH) scale. Statistical analyses were performed with generalized linearized models using SPSS. When morphological characteristics were examined, the Atabey2 genotype could be considered as hopeful in terms of fruit weight, width and diameter. Determination of the stages of phenological development of Crataegus taxa, which has an important place as a non-wood forest product, according to the BBCH scale, has importance in terms of understanding the collection time of plant organs to be evaluated and supervising collection and sustainability. This study was the first one in which the BBCH scale was used in the analysis of the phenological development of the Crataegus monogyna Jacq. var. monogyna.
