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Öğe A New Hybrid Record for The Vascular Flora of Türkiye: Fagus x taurica Popl.(Duzce University, 2024) Özkan, Neval Güneş; Birtürk, Turgay; Aksoy, Necmi; Ayteğin, AhmetThe presence of Fagus x taurica Popl., a hybrid of two Fagus L. taxa known to be naturally distributed in Türkiye, has been detected in the natural deciduous-mixed forests of Bolu. Specimens were collected from Kökez Old Growth Fir Forest Nature Reserve Area, Bolu Kale Fındığı Nature Reserve Area, and Yedigöller National Park in Bolu province, northwest Türkiye. After the identification, specimens were compared with materials in the international herbaria. As a result of the examinations, the morphological features seen to be different from its parents are as follows: Young shoots are grayish-green in color, leaves have 7-13 pairs of lateral veins, are ovate or obovate, and their margins are dentate, and the cupula scales are subulate. It resembles F. orientalis Lipsky in terms of leaf characteristics and F. sylvatica L. in terms of cupula characteristics. In this article, a botanical description of the taxon, differences from the main species, distribution maps, and photos are given. Fagus x taurica is a new hybrid record for the vascular flora of Türkiye. With this new record, the number of Fagus sp. taxa in the flora of Türkiye has risen to 3.Öğe Alien flora of Turkey: checklist, taxonomic composition and ecological attributes(Pensoft Publishers, 2017) Uludağ, Ahmet; Aksoy, Necmi; Yazlık, Ayşe; Arslan, Zübeyde Filiz; Yazmış, Efecan; Üremiş, İlhan; Brundu, GiuseppeThe paper provides an updated checklist of the alien flora of Turkey with information on its structure. The alien flora of Turkey comprises 340 taxa, among which there are 321 angiosperms, 17 gymnosperms and two ferns. Of the total number of taxa, 228 (68%) are naturalized and 112 (32%) are casual. There are 275 neophytes (172 naturalized and 103 casual) and 61 archaeophytes (52 naturalized and 9 casual); four species could not be classified with respect to the residence time. In addition, 47 frequently planted taxa with a potential to escape are also listed. The richest families are Asteraceae (38 taxa), Poaceae (30), Fabaceae (23) and Solanaceae (22). As for the naturalized alien plants, the highest species richness is found in Asteraceae (31 taxa), Poaceae (22), Amaranthaceae (18) and Solanaceae (15). The majority of alien taxa are perennial (63.8% of the total number of taxa with this life history assigned, including those with multiple life histories), annuals contribute 33.8% and 2.4% are biennial aliens. Among perennials the most common life forms are phanerophytes, of which 20.3% are trees and 12.6% shrubs; woody vines, stem succulents, and aquatic plants are comparatively less represented. Most of the 340 alien taxa introduced to Turkey have their native ranges in Americas (44.7%) and Asia (27.6%). Of other regions, 9.1% originated in Africa, 4.4% in Eurasia, 3.8% in Australia and Oceania and 3.5% in the Mediterranean. The majority of taxa (71.9%) were introduced intentionally, whereas the remaining (28.1%) were introduced accidentally. Among the taxa introduced intentionally, the vast majority are ornamental plants (55.2%), 10.0% taxa were introduced for forestry and 6.7% as crops. Casual alien plants are most commonly found in urban and ruderal habitats (40.1%) where naturalized taxa are also often recorded (27.3%). Plants that occur as agricultural weeds are typically naturalized rather than casual (16.0% vs 7.1%, respectively). However, (semi) natural habitats in Turkey are often invaded by alien taxa, especially by those that are able to naturalize.Öğe Astragalus bartinense (Fabaceae), a new species from Turkey(Univ Zagreb, Fac Science, Div Biology, 2020) Tunckol, Bilge; Ayta, Zeki; Aksoy, Necmi; Fisne, AhterAstragalus bartinense is described as a new species from Bartin Province in Northern Anatolia, Turkey. The new species is close to A. depressus L. and A. froedinii Murb., but distinctly differs from A. froedinii in having hairy fruit, long stipules (10-12 mm) and peduncle (10-25 mm). It also differs from A. depressus in having long stipules and a stipitate and glabrous ovary. Taxonomic descriptions, micromorphology of pollen and seed and geographical distribution are presented.Öğe Avrupa-Sibirya (Euro-Siberian) Flora Alanının Batı Karadeniz Alt Bölgesinde Bulunan Tıbbi Yabancı Ot Türleri(2020) Tembelo, Barış; Aksoy, Necmi; Arslan, Zübeyde FilizBitkilerin tedavide kullanımları insanlık tarihiyle birlikte başlamış olup, modern tıpta kullanılan pek çok ilaçbitkilerden elde edilmektedir. Bu araştırma, halk sağlığı başta olmak üzere tıbbi bitkiler ile ilgili çalışmalarakatkı sağlamak amacıyla, Düzce ilinde 2018-2019 yıllarında yürütülmüştür. Çalışma kapsamında bazı kaynaklaresas alınarak, ülkemizde ve Batı Karadeniz alt flora bölgesinde tarım ve tarım dışı alanlarda zararlı oldukları içinistenmeyen ancak tıbbi değeri olan yabancı ot türleri belirlenmiştir. Araştırma sonucunda ülkemizde ve BatıKaradeniz Bölgesinde bulunan tıbbi yabancı otların tüketilen kısımları, içerdiği tıbbi maddeler, tıbbi etkisi vekullanım alanları ile ilgili bilgiler sunulmuştur.Sonuç olarak, ülkemizdeki 84 tıbbi yabancı ot türünden 57 tanesinin Batı Karadeniz bölgesinde bulunduğu ve 18türün zehirli bitki olduğu ortaya çıkmıştır. Daha çok Asteraceae ve Cyperaceae familyalarında yer alan bu türlertıbbi olarak en fazla üroloji, dermatoloji, dahiliye ve romatoloji alanlarında kullanılmaktadır. Bu yabancı otlarıntıbbi amaçlı kullanımlarında daha dikkatli olunması önerilmektedir.Öğe Bardız Çayı Vadisinin Endemik ve Nadir Bitkileri (Erzurum-Şenkaya)(Düzce Üniversitesi, 2022) Kotan, Merve; Aksoy, NecmiBu çalışmada, Kuzey Doğu Anadolu Bölgesi’nde yer alan Erzurum ili Şenkaya ilçesine bağlı Bardız Çayı Vadi florasının incelenmesi sonucunda alanda tespit edilen endemik ve nadir bitki taksonları belirlenmiştir. Çalışma alanı Sarıkamış Allahuekber Dağları Milli Parkının sınırları içerisinde yer almaktadır. Yükselti 1300-2850 m arasında olup Avrupa-Sibirya ile İran-Turan floristik bölgelerinde yer almakta ve Avrupa-Sibirya floristik alanın etkileşimi altındadır. P. H. Davis’in Grid sistemine göre A9 karesi içerisinde yer almaktadır. 2019-2021 yılları arasında yapılan 18 arazi çalışmasında toplam 517 bitki örneği toplanmıştır. Yapılan bitki teşhisleri sonucunda 48 familyaya ait 195 cins ve bu cinslere ait toplam 337 takson tespit edilmiştir. Bu taksonlardan 19’u endemik, 3’ü ise nadir bitki kategorisindedir. Endemizm oranı %5,63 olarak hesaplanmıştır.Öğe Bolu Gölcük’teki doğal ve egzotik sucul bitki türleri için risk yönetimi planı(2023) Aksoy, Necmi; Güneş Özkan, Neval; Koçer, Nihan; Müderrisoğlu, Haldun; Eroğlu, EnginBu çalışma Bolu Gölcük Gölü Tabiat Parkı için göl içerisinde bulunan istilacı ve yabancı türlerle ilgili eylem planının hazırlanması kapsamında yapılmıştır. Nisan-Ekim 2022 tarihleri arasında, göl içerisinde ve kıyı alanlarında floristik çalışmalar yürütülerek, gölün doğal ve yabancı bitki türleri ile bunların oluşturduğu toplumlar Braun-Blanquet yöntemine göre belirlenmiştir. Arazi çalışmaları sonucunda göl içi ve kıyısında yayılış yapan 22 familya ve 38 cinse ait 47 takson ile sucul 3, kıyı-çamur vejetasyonunda 2 olmak üzere 5 bitki toplumu belirlenmiştir. Bu toplumlar içerisinde yayılış yaptığı belirlenen yabancı bitki türleri ve bu türlerden istilacı olma potansiyeline sahip olanlar ile ilgili risk yönetimi önerileri yapılmıştır.Öğe Centaurea yaltirikii sp nov (Asteraceae, C. sect. Pseudoseridia) from Turkey(Wiley, 2008) Aksoy, Necmi; Duman, Hayri; Efe, AsumanA new species of Centaurea L. (Asteraeeae) from Turkey is described and illustrated. Centaurea yaltirikii N. Aksoy, H. Duman & A. Efe sp. nov. (C. sect. Pseudoseridia Wagenitz) is restricted to the rocky slopes of Elmacik Dagi (A3: Duzce-Golyaka). It is morphologically most similar to C. drabifolioides Hub.-Mor. and C. cheirolepidoides Wagenitz, but differs in stem, leaves and phyllary appendange characters. The diagnostic morphological characters are discussed. The habitat and conservation status of the species are presented, and the geographical distribution of the new species and other related species is given.Öğe Centaurea yaltirikii subsp dumanii subsp nov (C. sect. Pseudoseridia, Asteraceae) in Marmara region of Turkey(Wfl Publ, 2010) Aksoy, Necmi; Ataşlar, Ebru; Efe, Asuman; Güneş, NevalA new subspecies of Centaurea yaltirikii N. Aksoy, H. Duman and A. Efe subsp. dumanii N. Aksoy and A. Efe (C. sect. Pseudoseridia Wagenitz, Asteraceae), is described and illustrated with diagnostic characters and taxonomic comments. The characteristics of the new subspecies are compared with those of the type subspecies from which it differs mainly in the hair of the leaves, stomata types, length and width of the pappus and surface of achene. In addition, the geographic distribution of the new subspecies is mapped.Öğe Centaurea yaltirikii subsp. dumanii subsp. nov. (C. sect. Pseudoseridia, Asteraceae) in Marmara region of Turkey(WFL Publisher Ltd., 2010) Aksoy, Necmi; Ataşlar, Ebru; Efe, Asuman; Güneş, NevalA new subspecies of Centaureayaltirikii N. Aksoy, H. Duman and A. Efe subsp. dumanii N. Aksoy and A. Efe (C sect. Pseudoseridia Wagenitz, Asteraceae), is described and illustrated with diagnostic characters and taxonomie comments. The characteristics of the new subspecies are compared with those of the type subspecies from which it differs mainly in the hair of the leaves, stomata types, length and width of the pappus and surface of achene. In addition, the geographic distribution of the new subspecies is mapped.Öğe Cephalaria duzceensis (Dipsacaceae), a new species from the western Black Sea region, Turkey(Wiley, 2007) Aksoy, Necmi; Göktürk, R. Süleyman; Açık, Leyla; Çelebi, AytenA new species, Cephalaria duzceensis N. Aksoy & R. S. Gokturk (Dipsacaceae) from western Black Sea region of Turkey is described. It is illustrated in line drawings and the morphology of the new species is compared with Cephalaria speciosa. Molecular and morphological methods were used to separate the two species. Both species were first identified morphologically and then studied by randomly amplified polymorphic DNA (RAPD) markers. Genetic similarities were calculated based on the RAPD data and used to construct a UPGMA dendrogram. According to the result, two main clusters were observed using the character differences. It is concluded that C duzceensis sp. nov. is different from C. speciosa.Öğe Chamaespartium Adans. (Leguminosae): a new record for the flora of Turkey(Tubitak Scientific & Technical Research Council Turkey, 2009) Efe, Asuman; Özhatay, Engin; Aksoy, Necmi; Oral, Dilek DemirChamaespartium sagittale (L.) P.E.Gibbs (Leguminosae) is a new record for the flora of Turkey with specimens collected from Yuvacik Dam (Kocaeli province, NW Turkey). Its description, distribution maps, and photos are given.Öğe Classification of Endemic Plants and Priority Conservation Areas in Küre Mountains National Park (Kastamonu Section)(Düzce Üniversitesi, 2020) Tunçkol, Bilge; Aksoy, Necmi; Haşayacak, HasanKastamonu section of Küre Mountains National Park has extraordinary biologic plant diversity. Especially karstic rocky areas and canyons on the forest belt have endemic richness. In this study conducted in Küre Mountains National Park which has the distribution of 1000 taxa, it was determined 40 endemic taxa. By taking into consideration of the number of endemic plants, population density and threat factors, the priority conservation areas in the National Park are divided into two subclasses. 1st level important areas: Horma Canyon, Ilıca Waterfall, Valla Canyon; 2nd level important areas: Çatak Canyon, Armutluçayırı, Kokurdan Alm and Loc Valley. This classification will be a guide for the recreational activities in the future by revealing the habitats of endemic plants and their spread. This study also shows the IUCN criteria, population density and conservation suggestions for the endemic plants spread in the area.Öğe Determination of some phenolics and fatty acid compounds from an endemic Cephalaria species in Anatolia along with antioxidant and anti-inflammatory activity(Pakistan Botanical Soc, 2023) Ergene, Burcin; Karaaslan, Melek; Ozler, Kamuran Ileri; Sarialtin, Sezen Yilmaz; Aksoy, Necmi; Iscan, Gulcin SaltanIn this study, HPLC analyses of total extract prepared with aqueous methanol, butanol fraction, and water fraction of Cephalaria duzceensis N.Aksoy & Gokturk (Caprifoliaceae), which is a local endemic species in Turkey, were conducted and contents of chlorogenic acid were calculated. The total antioxidant capacity, ABTS and DPPH free radical scavenging activity of the total extract were determined to evaluate its antioxidant activity. Assessment of anti-inflammatory activity was done using human red blood cell membrane stabilization and protein denaturation inhibition activity tests In vitro, whereas carrageenan-induced hind paw edema test In vivo. Moreover, the fatty acid composition inside the fixed oil extracted from C. duzceensis seeds was determined by GC -MS. As the result of GC -MS analysis, linoleic and oleic acids were found to be the predominant fatty acids in the fixed oil. The total phenolic contents of the total extract and butanol fraction were determined as 63.4029 and 95.0131 mg GAE/g dry extract, respectively. The chlorogenic acid amounts of the total extract, butanol, and water fractions were calculated as 3.7494%, 3.5335%, and 1.2354% by HPLC analysis. IC50 values of the total extract were calculated as 45.1385 mu g/ml against ABTS center dot+ and 28.6407 mu g/ml against DPPH center dot radicals and the total antioxidant capacity was 45.84 mg ascorbic acid equivalent/g dry extract. IC50 values of the total extract were calculated as 1.4084 mg/ml for human red blood cell membrane stabilization and 1.8601 mg/ml for protein denaturation inhibition method showing its moderate activity. In vivo tests revealed that total extract caused almost as much inhibition on edema as 10 mg/kg diclofenac sodium.Öğe Determining plant species diversity of Scots pine stands in the Bolu Aladag region of Turkiye(Univ Austral Chile, Fac Ciencias Forestales, 2023) Gurkan, Mustafa; Zengin, Hayati; Ozcan, Mehmet; Degermenci, Ahmet Salih; Aksoy, NecmiThis study aims to determine how plant diversity changes at the alpha and gamma levels depending on stand type. Also, it tries to understand how plant diversity changes temporally and with relation to aspects during a given vegetation period. Sample areas were selected from pure Scots Pine stands with full canopy cover (70 - 100 %) and in different development stages (a, b, c, d) spread out within the Bolu Aladag region of Turkiye. Field studies were carried out in 2016 from June-September. Sample stands were selected to cover two main aspects, north and south. The study was carried out by analyzing two repetitive and 10 quadrate samples in each stand. A total of 640 quadrate samples were analyzed, and the different plants were counted. In the study area, a total of 160 taxa were identified at the DUOF Herbarium. It was determined that while the stand type did not have a significant effect on taxon diversity, the effect of aspect and observation period was statistically significant (P < 0.05). Shannon index value was between 3.13 and 3.72 among the stands' different development stages, with the highest values found in the young stands. Diversity was higher on Northern aspects than Southern and rose and fell throughout the observation period with the highest values in June and August. Interestingly, while there was no significant effect of stand development stages on taxon diversity, a significant but low correlation has been found between stand diameter and evenness.Öğe Dianthus nezahatiae (Caryophyllaceae), a new species from the northwestern Turkey(Department of Biology, Faculty of Science, University of Zagreb, 2022) Hamzaoğlu, Ergin; Kanoğlu, Salih Sercan; Aksoy, NecmiSome Dianthus specimens collected from Sakarya and Bolu Provinces (Turkey) provinces are proposed as a new species. Dianthus nezahatiae Hamzaoglu (Caryophyllaceae) is naturally distributed in subalpine meadow habitats between the altitude range of 1450 and 1620 m a.s.l. Dianthus nezahatiae is differed from D. akdaghensis Gemici et Leblebici in respect to its inner bracts are 1.7-2.1 mm wide, the apex of the epicalyx scales is attenuate- rounded, the petal collar is almost half of the claw width, and the capsule is longer than calyx. In this paper description of the species, comparison with its close taxon, photographs, the distribution map, and its habitat preference are given. © 2022 Sciendo. All rights reserved.Öğe The discovery of a rare mutation: Terminal megasporangiate strobili on Turkish red pine (Pinus brutia Ten.) in Aegean Region of Turkey(Wfl Publ, 2011) Aksoy, NecmiThe megasporangiate strobili mature by shoot apical meristems that were found on a terminal position on Turkish red pine tree (Pinus brutia Ten.) in Aegean region of Turkey. Brief history of morphology, habitat and ecology of this individual tree, its unexpected morphological characters and rare mutation causes have been discussed in this research.Öğe Distribution and conservation significance of endemic plants in the Düzce province(2011) Aksoy, Necmi; Uzun, OsmanWhen considering the conservation status of endemic plants, their traits must be taken in land use systems, since endemics population ranges and sizes, and durability of natural habitats. In this paper, we present the global assessment of the conservation status of the endemic plants from the Düzce province, by applying IUCN criteria and categories, together with the distribution patterns of these species according to land using and its threatened. Also, we focused on which endemic species is distributed and where the populations are more spread and threatened in planning by plotting them in land use maps of Düzce province. The recent studies of flora in Düzce province shows richness in endemic species by a local and regional flora researches which biological diversity is reflected on land use map. The endemic plant lists of Düzce, which were obtained in field studies conducted between 2003 and 2009 in Düzce province, were plotted on the maps produced by employing geographic information systems (GIS). Distribution in land use of determining endemic species, which were specified as critical, endangered and vulnerable endemic species among them, were shown on the land use maps. Eventually, the natural habitats for these species were specified as usage areas with land use and landscape management planning by planning them into conservation management. © 2011 Academic Journals.Öğe Diversity and ecology of forest communities in Kure Mountains National Park of Turkey(Univ Austral Chile, Fac Ciencias Forestales, 2020) Tunckol, Bilge; Aksoy, Necmi; Coban, Suleyman; Zengin, HayatiThis study aimed at analyzing the diversity and ecological characteristics of forest associations (121 releves classified under eight associations) in Ktire Mountains National Park. Ordination analyses (DCA and CCA) and response curves were used to reveal ecological characteristics of vegetation using soil parameters (pH, electrical conductivity, sand, clay and dust content, soil moisture) and topographical variables (altitude, slope, potential direct incident radiation and heat load). Ecological conditions of communities were also tested using average Ellenberg indicator values (EIVs). Among forest associations, the highest species diversity was found in Phillyreo latifoliae-Pinetum brutiae and the lowest diversity in Hedero-Castanetum sativae, which had a dense Rhododendron ponticum shrub layer. However, Salicio-Platanet um orientale and Buxo sempervirens-Ccupinetum betuli had the highest beta diversity since they harbored unique species composition. Conditional effects of altitude, slope, pH and electrical conductivity, soil dust and sand content, sandy-loam and loam soil types presented significant contributions in species composition. While Carpino-Querretum petraeae was found on soil with high dust content having high pH and electrical conductivity values, Quercetum roburi-Aceretum campestri and Salicio-Platanettun orientale were related to soil with loam. Species responses to soil and topographical variables varied for most tree species. Light EIVs, which has a high positive correlation with potential direct incident radiation and heat load, related to Phillyreo latifoliae-Pinetum brutiae and Salicio-Platanetum orientale. Riverside forest communities diffixed from other communities in nutrient and humidity EIVs. However, EIVs did not show a good correlation with associated soil parameters such as soil moisture-humidity EIVs and soil pH-acidity EIVs.Öğe Düzce İli Olası Katı Atık Bertaraf Tesisi Sahalarının Yer Seçimi Kriterleri Açısından Degerlendirilmesi(Düzce Üniversitesi, 2010) Uzun, Osman; Aksoy, Necmi; Karagül, RefikKatı atıkların bertaraf edilmesi kompostlastırma, yakma ve/veya düzenli depolama islemleriylegerçeklestirilmektedir. Düzenli depolama alanları yer seçimi disiplinlerarası bir grupla, dogal ve kültürel peyzajailiskin kriterlerin degerlendirilmesi ile yapılmalıdır. Arastırma, Düzce Belediyesi tarafından ön seçimi yapılanYesilyayla, Deredibi, Kurtsuyu ve Esençam mevkiindeki 4 alternatif alanın yer aldıgı Düzce lin’degerçeklestirilmistir. Çalısmanın yöntemini, sırasıyla 28 maddede toplanan çevresel kriterler; planlama kriterleri;dogal ve peyzaj kriterleri; politik ve yasal kriterler; finansal ve ekonomik kriterlerin dört alternatif alan içinuzman bir grup tarafından degerlendirilmesi olusturmaktadır. Bu degerlendirmelerin yapılmasında Cografi BilgiSistemlerinden yararlanılmıstır. 28 adet kriterin degerlendirmesi sonucunda alternatif alanlar sırasıyla Kurtsuyu91, Esençam 80, Yesilyayla 79 ve Deredibi 71 puan almıslardır. Alternatifler arasında puan farklarının yakınolması, yönteme katılacak diger kriterlerin puanlanması ile artıp azalabilecektir. Bu çalısma Düzce ili içinyapılacak katı atık bertaraf tesisi sahalarının seçimi için bir ön arastırmadır.Öğe Düzce Üniversitesi Süs ve Tıbbi Bitkiler Botanik Bahçesinin Ballı Bitkileri(Düzce Üniversitesi, 2023) Aksoy, Necmi; Müderrisoğlu, Haldun; Eroğlu, Engin; Özkan, Neval Güneş; Birtürk, Turgay; Koçer, Nihan; Tunçkol, BilgeBu çalışmada Düzce Üniversitesi Süs ve Tıbbi Bitkiler Botanik Bahçesi’ne dikilen taksonlardan bal arısının (Apis mellifera L.) yararlanabileceği ballı bitkiler sunulmuştur. Botanik bahçesine dikimi gerçekleştirilen 451 taksondan bu özelliklere sahip olanlar konuyla ilgili çalışmalar incelenerek belirlenmiştir. Ballı bitki sınıfına giren 165 taksondan (%36,58); 119'u hem nektar hem de polen, 25'i polen, 13'ü nektar, 4'ü hem polen hem de böcek salgısı (BS) veya tatlı özsu (TÖS), 2'si polen, nektar ve BS veya TÖS, 1'i hem nektar hem de TÖS, 1’i yalnızca BS içerir. Küresel iklim değişikliği nedeniyle sayıları azalan polen ve polen taşıyıcı böceklerin azalmasını önlemek amacıyla botanik bahçesine bir "Arı ve Böcek Oteli" yerleştirildi. Bu nedenle dikim için seçilen bitkilerin büyük çoğunluğu ballı bitki özelliği taşıyan taksonlardan seçildi. Buradaki temel amaç hem botanik bahçesindeki bitkilerin tozlaşmasını sağlamak hem de böcek türlerinin tozlaşma üzerindeki etkilerini doğa eğitimi yoluyla göstermek ve anlatmaktır.
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