Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810145786
Authors: DEVKATE, UDDHAV NAMDEV
Advisor: Patil, V. K.
Title: STATUS OF THREATENED BIRD SPECIES IN KONKAN REGION OF MAHARASHTRA
Publisher: dbskkv., Dapoli
Language: en
Type: Thesis
Pages: 151
Agrotags: null
Keywords: Forestry
Abstract: Western Ghats is home to different ecosystems. Birds are among the best known components of the Earth’s biodiversity. India holds nearly 11 per cent of bird biodiversity. Out of 11,126 bird species in the world, there are 1,211 birds species found in India. Maharashtra state in India is home to 568 bird species recorded under 83 families and 20 orders. On the basis of eBird database, 418 bird species are found in Konkan region. It was decided to cover the entire Konkan region. So, bird diversity was assessed in total 19 forest preservation plots of Maharashtra Forest Department viz. Chahade, Sarani, Talvali, Ogda Parali, Tansa, Vehlonde, Dolkhamb, Vihigaon, Yeoor, Matheran, Karnala, Insuli, Amboli, Tamboli, Bambarde, Morle, Hewale, Ugade, Narur. In addition, survey was conducted to assess the regional status of threatened bird species in Konkan region using snow-balling techniques in which a datasheet was filled by collecting information from local people while travelling and birding experts through a Google Form. Bird census was conducted on 5 line transects of 100 m each. Similarly, census was conducted at 5 points in each preservation plot. A total of 103 bird species representing 15 orders and 44 families were recorded in the study including those recorded in preservation plots and other areas during travels. In the preservation plots, 72 species belonging to 12 orders and 32 families were recorded using point count and transect count methods. Passeriformes was the most dominant order with 46 species. Similarly, Muscicapidae, Nectariniidae and Campephagidae were the most dominant families with 6, 5 and 4 species respectively. In preservation plots, number of bird species recorded in descending order were in Tamboli (29), Amboli (29), Ugade (28), Insuli (26), Vehlonde (26), Sarani (26),Yeoor (25), Karnala (25), Morle (25), Narur (24), Bambarde (22), Tansa (22), Talvali (21), Hewale (21), Ogda Parali (20), Chahade (18), Vihigaon (18), Dolkhamb (16) and Matheran (15). Maximum number of orders were recorded in Hewale (10) and Tansa (10) followed by Ogda Parali (9) and Tamboli (9) with lowest recorded in Dolkhamb (04), Matheran (04) and Insuli (04). Forest owlet, Malabar Pied Hornbill and Woolly-necked Stork were the threatened species recorded in the present study. On the basis of point count method maximum number of species were found in Sarani (23) and minimum species found in Dolkhamb (11), Matheran (11), Narur (11). Higher number of Individual found in Talvali (99) and lower in Narur (29). The dominance index was considerably highest in Sarani (0.6) whereas lowest in Narur (0.19). Simpson Index is maximun in Sarani (0.93) and minimum in Narur (0.80). Shannon Index is highest in Sarani (2.89) and lowest in Narur (1.96). Evenness is maximun in Dolkhamb and Matheran (0.90) and minimum in Chahade (0.62). Fisher’s alpha is Maximum in Sarani (11.44) and minimum in Ogda Parali (3.96). Chao-1 is higher in Insuli (32) and lower in Dolkhamb and Matheran (11). On the basis of line transect method maximum number of Species found in Amboli, Tamboli and Ugade (16) and minimum Species found in Matheran (05). Higher number of Individual found in Amboli (61) and lower in Ogda Parali (14). The dominance index was considerably higher in Tamboli (0.7) and lowest in Matheran (0.48). Simpson Index is maximun in Tamboli (0.92) and minimum in Matheran (0.51). Shannon Index is higher in Tamboli (2.64) and lower in Matheran (1.05). Evenness is maximun in Yeoor (0.88) and minimum in Bambarde (0.43). Fisher’s alpha is Maximum in Tamboli (12.24) and minimum in Matheran (2.29). Chao-1 is higher in Ugade (25.33) and lower in Talvali (6). On the basis of point count method maximum spatial turnover was found in Ogda Parali-Morle (1.00), Dolkhamb-Hewale (1.00) and Matheran-Hewale (1.00) but minimum species turnover found in Talvali-Ogda Parali (0.40). On the basis of line transect method maximum spatial turnover found in Tansa-Matheran (1.00), Vehlonde-Matheran (1.00), Yeoor-Matheran (1.00), Vihigaon-Bambarde (1.00), Matheran-Hewale (1.00) and Matheran-Narur (1.00) but minimum species turnover found in Amboli-Morle (0.43). In Konkan region 35 threatened bird species are known to occur from various sources. These include three Critically endangered, four Endangered, eight Vulnerable and 20 Near-threatened species. In layman survey 186 local people from various villages in Konkan region were asked for information related to threatened bird species. Respondents reported in higher proportion the presence of Malabar paid hornbill (45.7%), Woolly necked stork (41.4%), Great Hornbill (39.78%), Oriental darter (38.71%), Black-Headed Ibis (37.63%) followed by Eurasian curlew (35.48%). Respondents’ information on seasonality of threatened species was not very accurate. Almost invariably, respondents reported the frequency of most threatened species as rare and the abundance as low. All respondents reported absence of the bird species Egyptian vulture, White-Rumped Vulture, Red headed vulture, Black bellied tern, Indian skimmer and Lesser Flamingo. This is probably due to extreme rare occurrence of this species.
Subject: Forest Biology and Tree Improvement
Theme: FOREST PRODUCT UTILIZATION
These Type: M.Sc
Issue Date: 2019
Appears in Collections:Thesis

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