Cilt:28 Sayı:01 (2019)

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https://dspace.ankara.edu.tr/handle/20.500.12575/76462

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Browsing Cilt:28 Sayı:01 (2019) by Subject "endemic plants"

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    Evaluatıon of threat categorıes of the endemıc plants of Deveci mountaıns (Yozgat-Tokat/Turkey)
    (Ankara Üniversitesi Fen Fakültesi, 2019) Bingöl, M.Ümit; Biyoloji; Fen Fakültesi
    This study based on the vegetation field survey between April 1993 and October 1997 is done for the purpose of determining the vegetation of Deveci Mountains (Yozgat-Tokat). During the plant vegetation seasons, 1400 plant samples were collected from the research area. 456 taxa and 262 genera to be belonging to 63 families were determined. In the survey area, five different vegetation types coniferous and deciduous forest, scrub, steppe, rocky and wet grassland were present. The threat categories of the endemic species of Deveci Mountains were determined and evaluated according to ‘Red Data Book of Turkish Plants’, which was prepared by using IUCN criteria. A total of 65 plant taxa were determined as endemic (14.25% of all taxa). Highest ratios of endemic taxa were from families Fabaceae (16.92%) and Lamiaceae (16.92%). Phytogeographic regions (Chorotypes) among endemic taxa were listed as Irano-Turanian 35 (53.85%), Eastern Mediterranean 3 (4.62%), Euxine 2 (3.08%), Euro-Siberian 1 (1.54%), while phytogeographic origin of (24 taxa) 36.92% of endemic taxa were Unknown. As endemic taxa and their threat categories are evaluated, 1 (1.54%) species was found to in Endangered, 4 (6.15%) in Vulnerable, 7 (10.77%) in Near Threatened and 53 (81.54%) in Least Concern according to IUCN criteria. When the plant taxa were classified and analysed according to Raunkiaer’s life forms, Hemicryptophytes were determined to be the most common plant taxa (76.92%), Chamaephytes come next (9.23%), is followed by the Therophytes (7.69%), and then come Phanerophytes (4.62%). While Geophytes have the least number of plant taxa with 1 species (1.54%).
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    Threat categories of endemic plants of sakarat mountain (Amasya/Turkey)
    (Ankara Üniversitesi Fen Fakültesi, 2019) Bingöl, M.Ümit; Biyoloji; Fen Fakültesi
    This study aims to determine the threat categories of endemic plants in the vegetation of Sakarat Mountain (Amasya) on the basis of the vegetation field survey in 2004 and 2005 years. Plant samples were collected in their vegetation seasons. According to results, 78 families, 283 genera and 494 taxa are identified. As a result of field surveys, six different vegetation types forest (decidious, mixed coniferous and deciduous), subalpine, steppe, rocky, wet grassland and segetal were determined. 40 plant taxa (8.09% of all taxa) were confirmed as endemic. The families with the highest rate of endemic taxa are Fabaceae (15%) and Lamiaceae (15%). Phytogeographic regions (Chorotypes) among endemic taxa were listed as Irano-Turanian 13 (32.5%), Euro-Siberian 9 (22.5%), Mediterranean 1 (2.5%), while phytogeographic origin of (17 taxa) 42.5% of endemic taxa were Unknown. The threat categories regarding the endemic species were determined and analysed according to “Red Data Book of Turkish Plants” adopted 2001 IUCN criteria. In the evaluation phase of the endemic taxa and their threat categories, it was found that 1 species (2.5%) is in Endangered, 3 species (7.5%) in Near Threatened and 36 species (90%) in Least Concern according to the criteria of 2001 IUCN. When the life forms of plant taxa were analysed, it was determined that Hemicryptophytes have the most number of plant taxa with 82.5%, Therophytes and Geophytes have the less than others 2.5%.