scholarly journals A geographical assessment of Chariganga and Arpara Beel (wetlands) of Nadia, West Bengal as a habitat of wetland birds

2021 ◽  
Vol 13 (13) ◽  
pp. 19964-19975
Author(s):  
Mehedi Hasan Mandal ◽  
Arindam Roy ◽  
Giyasuddin Siddique
Keyword(s):  
Population Distribution ◽  
Diversity Index ◽  
Bird Species ◽  
Economic Activities ◽  
Wetland Birds ◽  
Natural Habitats ◽  
Empirical Observation ◽  
Point Count ◽  
Water Edge ◽  
The Impact

The present study attempts to assess the impact of human intervention on the population, distribution, and habitat perspectives of the water birds found in and around Chariganga and Arpara ‘Beel’ wetlands, leftover channels of the River Bhagirathi. The point count method was adopted during field surveys conducted from April 2019 to March 2020. These wetlands are the natural habitats for 37 species of wetland birds belonging to 18 families and 11 orders, of which 26 species are residents, three are summer migrants, and eight are winter immigrants. The wetlands also harbour 10 bird species whose population is globally declining over the last few decades. Relative Diversity index unveils that among waterfowls Ardeidae is the dominant family. Species richness reaches its peak in winter, and is least during the monsoon. Empirical observation documented one Vulnerable (Greater Adjutant) and one Near Threatened (Black-Headed Ibis) species residing on the banks and adjoining paddy fields. Indiscriminate extraction of wetland products by local people, along with agricultural expansion towards the waterfront of the wetlands, has deteriorated the health of those wetlands and threatened the existence of waterbirds, especially shorebirds. Populations of 22 species living in water edge areas has changed conspicuously owing to cultural and economic activities of neighboring human groups. We suggest improving the ecological balance of the wetlands and restraining further degradation through proper management to preserve avian diversity. 

scholarly journals Assemblage of wetland bird Species in Purbasthali Oxbow Lake, West Bengal, India: Implications for Management

2021 ◽  
Vol 29 (2) ◽  
pp. 25-45
Author(s):  
Mehedi Hasan Mandal ◽  
Arindam Roy ◽  
Subhendu Ghosh ◽  
Aritra Basak ◽  
Giyasuddin Siddique
Keyword(s):  
Diversity Index ◽  
Bird Species ◽  
Open Water ◽  
Oxbow Lake ◽  
Primary Data ◽  
Point Count ◽  
Wiener Diversity Index ◽  
Water Edge ◽  
Abundance And Diversity ◽  
Point Count Method

Abstract The present study attempts to assess the composition, abundance and diversity of avifauna with respect to their habitat in and around the Purbasthali wetland, based on both primary data collected through the point count method during 2017–2019 and literature data. Among the total 77 species (encompassing 10 orders and 19 families), 39 species are migrants, 18 are rare and 24 species show declining global trend. According to their habitat, they are sub-divided into three categories i.e. waterfowls (live in open water, 20 species), waders (live in bank areas/water edge area, 45 species) and wetland associated (live in nearby trees, 12 species). The Shannon-Wiener Diversity Index (H’) and the Evenness Index (E’) are used to examine the diversity within and between the habitats. The result reveals higher diversity and evenness of the waders in comparison to others. The maximum diversity (H′=3.02) and evenness (E′=0.79) has been recorded for the waders in 2019, whereas the least values (H′=1.02, E′=0.34) have been found in 2016 for the waterfowls. Relative Diversity Index affirms the dominance of the Anatidae family. The birds of the area have now been seriously threatened by human intervention.

Bird community structure in natural and urbanized habitats along an altitudinal gradient in Pauri district (Garhwal Himalaya) of Uttarakhand state, India

Biologia ◽  
2012 ◽  
Vol 67 (4) ◽  
Author(s):  
Archana Naithani ◽  
Dinesh Bhatt
Keyword(s):  
Community Structure ◽  
Altitudinal Gradient ◽  
Diversity Index ◽  
Bird Species ◽  
Bird Community ◽  
High Elevation ◽  
Base Line ◽  
Natural Habitats ◽  
Forest Habitat ◽  
Rarefaction Analysis

AbstractIn the Indian subcontinent there is hardly any study that compares the bird community structure of urban/suburban areas with those of forest habitat. The present survey identified diverse assemblages of birds in the Pauri district at different elevations. A total of 125 bird species belonging to 40 families including two least count species (Lophura leucomelanos and Pucrasia marcolopha) were recorded during this survey in the forest and urbanized habitats of Pauri District (Garhwal Hiamalaya) of Uttarakhand state, India. The high elevation (Pauri 1600–2100 m a.s.l.), mid elevation (Srikot-Khanda 900–1300 m a.s.l.) and low elevation (Srinagar 500–900 m a.s.l.) contributed 88.8%, 63.2% and 58.4% of the total species respectively. Rarefaction analysis and Shannon diversity index showed that the high elevation forest habitat had highest bird species richness (BSR) and bird species diversity (BSD) followed by the mid and then the low elevation forests. BSR and BSD fluctuated across seasons at all elevations but not across habitat types. Present study provides a base line data about avian community composition in urbanized and natural habitats along altitudinal gradient in the study area. This information may be useful to the conservation biologists for the better management and conservation of the avifauna in the Western Himalaya, a part of one of the hot biodiversity spots of the world.

scholarly journals Factors affecting the species richness and composition of bird species in a community managed forest of Nepal

2021 ◽  
Vol 13 (9) ◽  
pp. 19212-19222
Author(s):  
Bishow Poudel ◽  
Bijaya Neupane ◽  
Rajeev Joshi ◽  
Thakur Silwal ◽  
Nirjala Raut ◽  
...  
Keyword(s):  
Diversity Index ◽  
Bird Species ◽  
Habitat Characteristics ◽  
Lower Percentage ◽  
Bird Diversity ◽  
Limited Information ◽  
Managed Forest ◽  
Point Count ◽  
Community Forests ◽  
Wiener Diversity Index

There exists limited information on biodiversity including avifaunal diversity and habitat condition in community forests (CF) of Nepal; thus we aimed to fulfill such gaps in Tibrekot CF of Kaski district. We used the point count method for assessing bird diversity and laid out a circular plot size of radius 5-m within 15-m distance from each point count station for recording the biophysical habitat characteristics. Bird species’ diversity, richness and evenness were calculated using popular indexes and General Linear Model (GLM) was used to test the respective effect of various biophysical factors associated with the richness of bird species. In total, 166 (summer 122, winter 125) bird species were recorded in 46 sample plots. The Shannon-Wiener diversity index was calculated as 3.99 and 4.09, Margalef’s richness index as 16.84 and 17.53 and Pielou’s evenness index as 0.83 and 0.84 for summer and winter, respectively. The influencing factors for richness of bird species were season (χ21, 90= 112.21; P= 0.016) with higher richness in the summer season and low vegetation cover (χ21, 89= 113.88; P= 0.0064) with higher richness in lower percentage cover. Thus, community managed forest should be protected as it has a significant role in increasing bird diversity, which has potential for attracting avifaunal tourism for the benefit of the local communities.

scholarly journals Birds of Barandabhar Corridor Forest, Chitwan, Nepal

2021 ◽  
Vol 13 (11) ◽  
pp. 19509-19526
Author(s):  
Saneer Lamichhane ◽  
Babu Ram Lamichhane ◽  
Kapil Pokharel ◽  
Pramod Raj Regmi ◽  
Tulasi Prasad Dahal ◽  
...  
Keyword(s):  
Habitat Type ◽  
Bird Species ◽  
Wetland Birds ◽  
Species List ◽  
Point Count ◽  
Reference Guide ◽  
Point Count Method ◽  
Time Frames ◽  
Bird List

Long term monitoring of bird species was conducted in Barandabhar Corridor Forest, one of the important bird areas of Nepal (IBA). Bird species were identified by the point count method in transect surveys in two-time frames from 2002–2012 and 2015–2016 to obtain the bird species list. We compared our bird list with previously published (after 2000) checklists and compiled the updated checklist of birds of Barandabhar Corridor Forest. We documented 372 bird species belonging to 80 families in Barandabhar, including five Critically Endangered, three Endangered, eight Vulnerable, and 15 Near Threatened species. The Accipitridae family included the highest number of species (n= 32), followed by Muscicapidae (n= 30) and Anatidae (n= 18). Approximately, half of the total confirmed bird species were insectivorous. The list included 63% resident, 27% winter migratory, 7.5% summer migratory, and 2.9% passage migrant species. According to the habitat type, there were 181 species of forest, 74 species of wetland, 24 species of grassland, 70 species of open field, and 23 species of partially wetland birds. This updated checklist of bird species will serve as a reference guide for bird watchers, biodiversity researchers, and support managers for conservation effort; and can be used to track any changes in the composition of bird species in the future.

scholarly journals Status and conservation issues of wetland birds in Komaranahalli Lake, Davanagere District, Karnataka, India

2018 ◽  
Vol 10 (2) ◽  
pp. 11290 ◽  
Author(s):  
M. N. Harisha ◽  
B. B. Hosetti
Keyword(s):  
Bird Species ◽  
Migratory Bird ◽  
Wetland Birds ◽  
Water Bird ◽  
Limosa Limosa ◽  
The Status ◽  
Potential Habitats ◽  
Water Birds ◽  
The Impact ◽  
Near Threatened

This study was carried out to assess the status and conservation issues of migratory water birds in Komaranahalli Kere, a lake in Malebennur, Harihar Taluk, Davanagere District from November 2012 to October 2013. The dominant family was Ardeidae represented by 10 species, followed by the Scolopacidae with seven species.  The families with lowest representations of one species were Podicipididae, Anhingidae, Rostratulidae and Recurvirostridae. The study revealed that the lake harbors many resident and a few migratory bird species. Among the species recorded five species namely the Black-headed Ibis Threskiornis melanocephalus, Oriental Darter Anhinga melanogaster, Black-tailed Godwit Limosa limosa, Painted Stork Mycteria leucocephala and River Tern Sterna aurantia are Near Threatened. The present study location is also facing tremendous conservation challenges by the impact of anthropogenic alteration of the habitats in and around the lake. Though the lake is highly disturbed, it still provides some potential habitats for a few migratory and several resident water bird species. 

scholarly journals Keanekaragaman Jenis Burung di Kawasan Pengembangan Institut Teknologi Sumatera (ITERA)

2021 ◽  
Vol 14 (1) ◽  
pp. 1-9
Author(s):  
Indah Oktaviani ◽  
Yanti Ariyanti ◽  
Sovia Santi Leksikowati ◽  
Muhammad Asril
Keyword(s):  
Environmental Changes ◽  
Diversity Index ◽  
Conservation Status ◽  
Bird Species ◽  
Secondary Data ◽  
Bird Community ◽  
Bird Diversity ◽  
Feeding Guild ◽  
Point Count ◽  
Wiener Diversity Index

AbstrakKawasan kampus Institut Teknologi Sumatera (ITERA) sedang mengalami perkembangan fisik yang pesat, seperti pembangunan gedung perkuliahan, laboratorium, asrama, juga embung untuk sumber air. Informasi mengenai keanekaragaman hayati di ITERA sendiri belum banyak diteliti, salah satunya adalah keanekaragaman burung. Burung merupakan hewan besar yang cukup sensitif dengan perubahan lingkungan. Penelitian ini dilakukan untuk mendapatkan data mengenai keanekaragaman burung di ITERA untuk memberikan informasi dasar. Metode yang digunakan adalah teknik point count, diterapkan pada lima stasiun utama yang dipilih berdasarkan pusat aktivitas pembangunan. Analisis yang digunakan adalah indeks keanekaragaman, kemerataan, juga kelimpahan. Selain itu, status konservasi dan tipe pakan jenis burung dianalisis menggunakan data sekunder. Hasil penelitian menunjukkan terdapat 19 jenis burung dari 16 famili. Keanekaragaman jenis burung berdasarkan indeks Shannon-Wiener tergolong sedang dan kemerataan jenis merata. Dari kategori kelimpahan yang digunakan terdapat dua jenis burung yang umum ditemukan. Bersumber pada PP No. 7 tahun 1999, terdapat empat jenis burung di ITERA yang termasuk ke dalam kategori dilindungi dan satu jenis termasuk kategori Appendix II di CITES. Feeding guild burung di ITERA didominasi tipe omnivora dan insektivora. AbstractInstitut Teknologi Sumatera (ITERA) campus area is undergoing rapid physical development, such as the construction of lecture buildings, laboratories, dormitories, as well as reservoirs for water sources. Information on biodiversity in ITERA has not much studied, one of which is bird diversity. Birds are large animals that are quite sensitive to environmental changes. This study aims to obtain data on bird diversity at ITERA to provide the baseline information. The method used is a point count technique, applied to five main stations selected based on the center of development activities. The analysis used is an index of diversity, evenness, and abundance. Besides, the conservation status and feed type of bird species were analyzed using secondary data. The results showed that there were 19 species of birds from 16 families. The Shannon-Wiener diversity index classified the bird community as a moderate, and the community evenness index was stable. From the abundance category, two types of birds commonly found. Based on PP No. 7 of 1999, there are four species of birds in ITERA, which included in the protected category and one species, including the Appendix II category in CITES. Omnivorous and insectivorous types dominate bird guild feeding in ITERA.

scholarly journals Kelimpahan Jenis Burung Diurnal Di Ruang Terbuka Hijau Tanah Pemakaman di Kota Malang, Jawa Timur

2021 ◽  
Vol 6 (1) ◽  
pp. 30-39
Author(s):  
Zainal Abidin ◽  
Anggraeni Hadi Pratiwi ◽  
Medha Baskara
Keyword(s):  
Diversity Index ◽  
Bird Species ◽  
Index Point ◽  
Bird Abundance ◽  
Point Count ◽  
Passer Montanus ◽  
The Public ◽  
Green Area ◽  
Wiener Diversity Index ◽  
Index Value

Abstrak Eksistensi Ruang Terbuka Hijau (RTH) yang di wilayah Kota Malang mulai menurun, ini dikarenakan proses pembangunan yang intensif. Tempat Pemakaman Umum (TPU) ialah salah satu RTH yang berfungsi lain yaitu sebagai kawasan resapan air, penghasil biomasa serta karbon terbanyak, dan habitat binatang liar contohnya burung. Penelitian kelimpahan burung diurnal dilaksanakan pada bulan September sampai bulan November 2020 di 3 TPU ialah (TPU Kasin, TPU Samaan, dan TPU Sukun). Metode perhitungan burung mengunakan IPA (Index Point of Abundance) dan Point Count. Identifikasi memakai buku “panduan lapangan burung-burung di Sumatra, Jawa, Bali, Kalimantan”. Hasil pengamatan burung diurnal di 3 lokasi TPU terdapat 11 famili, 15 spesies, 267 individu. Indeks keanekaragaman Shanon-Wiener di TPU Sukun, Kasin, dan Samaan terletak pada tingkatan keanekaragaman yang terkategori sedang (H’=1.5 – 3.5). Tingkatan kemerataan spesies dari ketiga TPU ialah (E>0.6) terkategori tinggi, sebaliknya nilai indeks kekayaan jenisnya (R<3.5) ialah terkategori rendah. Burung sriti (Hirundo tahitica) serta burung gereja (Passer montanus) populasinya lebih besar dibanding spesies yang lainnya. Kesesuaian lahan serta tingkatan gangguan dari penduduk kota terhadap burung disebagian areal TPU, mengakibatkan sebagian spesies burung tertentu yang bisa bertahan hidup dengan lingkungannya. Pengelolaan sumberdaya alam secara optimal mampu meningkatkan mutu kawasan lahan tersebut. Kata Kunci; Ruang Terbuka Hijau; Burung Diurnal; Tempat Pemakaman Umum Abstract The reduction of green area in Malang City due to intensify of construction process. Public cemetery is kind of green area which has function as drainage, and wild animal habitat like birds, and also produce Biomasa and amount of carbon. Research on diurnal bird abundance was carried out from September to November 2020 on 3 Public cemeteries (Kasin Public cemetery, Samaan Public cemetery, and Sukun Public cemetery). The bird abundance calculation method uses IPA (Index Point of Abundance) and Point Count. Process of identification by using panduan lapangan burung-burung di Sumatra, Jawa, Bali, Kalimantan’s book. The results of diurnal bird observations at 3 Public cemeteries are contained 11 families, 15 species, 267 individuals. The Shannon-Wiener diversity index in Sukun, Kasin, and Samaan Public cemeteries lies at the level of diversity which is categorized as medium (H '= 1.5 - 3.5). The level of evenness of the species of the three Public cemeteries are (E> 0.6) in the high category, on the other hand, the index value of species richness (R <3.5) is the low category. Sriti birds (Hirundo tahitica) and sparrows (Passer montanus) have a larger population than other species. The land suitability and the disturbance level from urban residents to birds in parts of the Public cemeteries are resulted only certain bird species that able to survive in their environment. The optimization of natural resources management can improve the quality of its land. Keywords: Green Area; Diurnal Bird, Public Cemetery

scholarly journals Keanekaragaman Jenis Burung Di Lahan Basah Way Pegadungan Desa Rajawali Kecamatan Bandar Surabaya Kabupaten Lampung Tengah

2015 ◽  
Vol 3 (1) ◽  
pp. 71
Author(s):  
Badia Roy Ricardo Nababan ◽  
Agus Setiawan ◽  
Nuning Nurcahyani
Keyword(s):  
Diversity Index ◽  
Bird Species ◽  
Similarity Index ◽  
Stable Condition ◽  
Point Count ◽  
Key Words Birds ◽  
Natural Wetlands ◽  
Line Transects ◽  
Point Count Method ◽  
Riparian Communities

ABSTRACT Way Pegadungan wetlands is a wetland closure difference between the two riparian communities. One of the wetlands is converted into paddies fields, while the other is a natural wetland which are still overgrown with trees. To determine diversity differences in bird species between two wetlands research communities, the point count method (IPA) and line transects were used. Observations made by the stationary point count and record the birds found. Each community was taken 6 points count and observed for 3 days. Research encountered 41 species of birds included in the 17 families with a total of 796 individual in paddies fields and 46 birds species with total of 655 individuals from 17 families of individuals in natural wetlands. Natural wetlands diversity index was 3.44 with equality index of 0.90, this value is higher than the wetlands changed into paddies fields with a diversity index of 2.91, and in a stable condition with equality index of 0.78. Both wetlands communities have the same identical species approach (IS = 1) with a similarity index of 0.73. Key words: birds, diversity, wetlands, Way Pegadungan 

scholarly journals Species diversity and feeding guilds of birds in Malaysian agarwood plantations

2020 ◽  
Vol 12 (14) ◽  
pp. 16954-16961
Author(s):  
Nor Nasibah Mohd Jamil ◽  
Husni Ibrahim ◽  
Haniza Hanim Mohd Zain ◽  
Nur Hidayat Che Musa
Keyword(s):  
Diversity Index ◽  
Bird Species ◽  
Food Sources ◽  
Current Status ◽  
Bird Diversity ◽  
Feeding Guilds ◽  
Bird Species Richness ◽  
Point Count ◽  
Insect Order ◽  
Wide Range

In Malaysia, the current status of birds inhabiting agarwood Aquilaria malaccensis plantations has not been specifically studied, and little research has been conducted to investigate birds in other agricultural areas (e.g., rubber, acacia, and oil palm plantations) and disturbed areas.  This study was conducted to assess bird species richness and relative abundance, as well as feeding guilds, in two agarwood plantation sites: Universiti Pendidikan Sultan Idris in Tanjong Malim (UPSI), and Slim River (SR).  The presence of birds was recorded using a combination of techniques (mist-nets and point count), while various sources were used to compile feeding information.  This study recorded 364 birds from 36 species in 24 families.  Shannon diversity index (H’) values for the UPSI and SR sites were 2.896 and 2.492 respectively, indicating high bird diversity.  The Bray-Curtis index was 0.29, indicating these sites share few species.  Insectivorous and omnivorous birds were dominant in UPSI (31%), and omnivores at SR (32%).  The commonest insect order at both sites was Orthoptera (UPSI 48%, SR 25%).  While agarwood plantations are relatively homogeneous, they provide a variety of food sources and shelter for a wide range of birds. 

scholarly journals Influence of urbanization on the avian species-area relationship: insights from the breeding birds of Rome

2020 ◽  
Author(s):  
Stefano Di Pietro ◽  
Cristina Mantoni ◽  
Simone Fattorini
Keyword(s):  
Central Italy ◽  
Bird Species ◽  
Breeding Birds ◽  
Urban Gradient ◽  
Natural Habitats ◽  
Number Of Species ◽  
Species Area ◽  
Species Area Relationship ◽  
The Impact ◽  
Different Levels

AbstractThe species-area relationship (SAR) is one of the most investigated patterns in ecology and conservation biology, yet there is no study testing how different levels of urbanization influence its shape. Here we tested the impact of urbanization on avian SARs along a rural-urban gradient using the breeding birds of Rome (Central Italy). We divided the city into 360 cells of 1 km2. Each cell was classified as rural, suburban or urban using the proportion of impervious surface calculated from remote sensing data. For each of these three landscape categories, we constructed a SAR as a species accumulation curve (Gleason function) using bird species distribution data. SAR intercepts (i.e. the number of species per unit area) decreased from rural to urban areas, which indicates that urbanization depressed the number of species, reflecting the loss of specialized species strictly associated with natural habitats. The slope was highest for the rural curve, indicating that natural landscapes have the highest turnover due to their higher habitat heterogeneity. A higher slope for the urban cells, compared to the suburban ones, can be explained by the presence of green spaces embedded in the built-up matrix which host different avian communities. Previous studies that compared whole cities with natural areas failed to find differences in the respective SARs. Our study, which constructed SARs for different levels of urbanization, indicated significant changes in the SARs along the rural-urban gradient. Further analyses in other cities and taxa will be useful to test how general are our findings.

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