scholarly journals Report of the early winter migrants and resident birds in an inland wetland near Tundi Camp, Bajana, Gujarat

2018 ◽  
Vol 10 (5) ◽  
pp. 11652
Author(s):  
Abhishek Chatterjee ◽  
Sudeshna Ghoshal ◽  
Soumyajit Chowdhury ◽  
Pinakiranjan Chakrabarti
Keyword(s):  
Bird Species ◽  
Avian Species ◽  
Feeding Guilds ◽  
Early Winter ◽  
Feeding Guild ◽  
Avian Community ◽  
The Family ◽  
Migrant Bird

The study is based on the avian community observed in the region.  In total, 1,079 individuals, 62 genera and 79 species of birds belonging to 35 families have been recorded.  Among them, the family Anatidae with 20.42% incidence is the most frequent; immediately followed by the family Phoenicopteridae (10.59% of occurrence).  Little Cormorant Phalacrocorax niger is the most abundant avian species observed.  The community consists of 44% resident; 36% resident-migrant and 20% migrant bird species.  It was observed that the concerned community shows a considerable diversity and a correspondingly low value of dominance.  In the feeding guild analysis, the insectivore guild has the most number of recorded avian species.  The feeding guild affiliations also point out that the overall community is fairly rich in its composition as it houses bird species belonging to various feeding guilds. 

scholarly journals A Synoptic Report on the Early Winter Migrants and Resident Birds in the Coastal Wetland of the Marine National Park, Positra, Gujarat

2015 ◽  
Vol 49 ◽  
pp. 35-43
Author(s):  
Abhishek Chatterjee ◽  
Sudeshna Ghoshal ◽  
Pinakiranjan Chakrabarti
Keyword(s):  
National Park ◽  
Coastal Wetland ◽  
Bird Species ◽  
Avian Species ◽  
Feeding Guilds ◽  
Early Winter ◽  
Feeding Guild ◽  
Avian Community ◽  
The Family ◽  
Migrant Bird

The study is based on the avian community observed in the region. In total, 524 individuals, 27 genera and 35 species of birds belonging to 21 families have been recorded. Among them, the family Charadriidae with 15.08% incidence is the most frequent; immediately followed by the family Scolopacidae (11.26% of occurence). The highest observed species richness has been observed in case of the family Ardeidae. Little Ringed Plover (Charadriusdubius) is the most abundant avian species observed. The community consists of 40% Resident; 40% Resident-migrant and 20% Migrant bird species. It was observed that the concerned community shows a considerable diversity and a corresponding low value of dominance. In the feeding guild analysis, the Insectivore and the Aquatic invertebrate-feeder guilds have the most number of recorded avian species. The feeding guild affiliations also points out that the overall community is fairly rich in its composition as it houses bird species belonging to various feeding guilds.

scholarly journals AVIAN SPECIES COMPOSITION PROFILE AND FEEDING GUILDS UNDER THE AEROBIC RICE FIELD

2021 ◽  
Vol 21 (1) ◽  
pp. 63-71
Author(s):  
Badrulhadza Amzah ◽  
Razali Baki ◽  
Mohd Hafizi Yahya
Keyword(s):  
Species Composition ◽  
Rice Field ◽  
Bird Species ◽  
Composition Profile ◽  
Avian Species ◽  
Current Status ◽  
Species Number ◽  
Feeding Guilds ◽  
Aerobic Rice ◽  
Feeding Guild

Avian species composition profile and feeding guilds under the aerobic rice field. In Malaysia, the aerobic rice productionsystem is an alternative approach to growing rice in a water-scarce environment. Like irrigated rice, aerobic rice also cansustain a diversity of avian fauna. The current status of birds in the rice fields of Malaysia especially under aerobic ricecondition has not been widely researched. Therefore, this study aims to document the richness, diversity and feeding guildsof bird species in aerobic rice cultivation area. Birds were sampled and recorded using four randomly set up mist net at anupscaling aerobic rice plot in Serdang, Selangor during a period of the one month starting from the milky stage of the plant (75days after emergence) until two weeks after harvest. 139 birds representing 11 species belonging to 7 families were recordedin the aerobic rice plot. The most abundant bird family observed was Estrildidae (80.58%), followed by Hirundinidae (6.47%),and Meropidae and Motacillidae (both recorded 5.04%). Scaly-breasted munia (50.36%) and white-headed munia (28.06%) arethe most abundant birds, while other types of munia such as chestnut munia and white-rumped munia are present in smallnumbers. Munias were the most observed bird species number (36.36%) and therefore can be considered as the main avianpest of aerobic rice. The diversity indices, The Shannon-Wiener Index was 1.43 while The Reciprocal Simpson Index was 2.93.The richness index (The Margalef Index) was 2.03. The Equitability Index was 0.59. In term of feeding guild, most speciesbelong to insectivore (45.45%) and granivore (36.36%) while the rest were piscivore/insectivore and granivore/insectivore.However, the granivore recorded the highest number of individuals (112 or 80.58%) compared to other guilds. Presence of arelatively high diversity of bird species with varieties of feeding guilds indicated that aerobic rice does provide an attractivehabitat or foraging site for avian fauna.

scholarly journals Effect of Farming and Rainfall on the Species Diversity, Population Density and Community Structure of Birds Breeding in the Kalahari Woodland, NE Namibia

Zoodiversity ◽  
2021 ◽  
Vol 55 (6) ◽  
pp. 451-458
Author(s):  
G. Kopij
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Bird Species ◽  
Diversity Indices ◽  
Annual Rainfall ◽  
Feeding Guilds ◽  
Line Transect ◽  
Population Densities ◽  
Feeding Guild ◽  
Turtle Dove

The line transect method has been employed to assess species diversity, population densities and community structure of birds breeding in a mosaic of Kalahari Woodland and farmland, NE Namibia. The transect, 4.5 km long, was surveyed in 2014 and 2015. The total annual rainfall in 2014 was much higher than in 2015 (427 mm vs. 262 mm). In total, 40 breeding species in 2014, and 46 in 2015 were recorded. Six species were dominant in 2014 (Cape Turtle Dove, Laughing Dove, Emerald-spotted Dove, Blue Waxbill, and White-browed Scrub Robin) and only three species in 2015 (Cape Turtle Dove and Blue Waxbill and Yellow-fronted Canary). Although the cumulative dominance in 2014 almost doubled that in 2015, the Community Index in both years was almost identical. Also diversity indices and evenness index were very similar in both years compared. Granivorous birds were the most numerous feeding guild. Their contribution was similar in 2014 and 2015 (46.7 % vs. 43.4 %). Two other feeding guilds, insectivores and frugivores, comprised together more than 50 % in both years. The number of bird species and species diversity were not influenced by the differential rainfall. However, contrary to expectations, population densities of most bird species (at least the more numerous ones) were higher in the year with lower than in the year with higher rainfall. The number of species and species diversity was similar in the farmland and in neighbouring Kalahari Woodland in a pristine stage. However, population densities of most species were lower in the farmland than in the pristine woodland.

scholarly journals On the high bird diversity in the non-protected regions of Trashiyangtse District in Bhutan

2021 ◽  
Vol 13 (9) ◽  
pp. 19274-19292
Author(s):  
Lam Norbu ◽  
Phuntsho Thinley ◽  
Tandin Wangchuck ◽  
Ugyen Dechen ◽  
Lekey Dorji ◽  
...  
Keyword(s):  
Ecosystem Health ◽  
Bird Species ◽  
Ecological Monitoring ◽  
Iucn Red List ◽  
Red List ◽  
Bird Diversity ◽  
Feeding Guilds ◽  
Avian Diversity ◽  
Feeding Guild ◽  
Baseline Information

Birds are ecological indicators of ecosystem health. Baseline information on bird diversity are, therefore, important for ecological monitoring. Such information is, however, sorely lacking for many areas outside the protected areas. Here, we explore the avian diversity and present a comprehensive checklist for the non-protected regions of Trashiyangtse District in northeastern Bhutan. We also categorise the bird species by their residency pattern, feeding guilds, abundance, and IUCN Red List status. We conducted an avifauna exploration for a period of four years from 2017 to 2020, mostly through opportunistic encounters coinciding with regular field visits. We recorded a total of 273 bird species belonging to 173 genera, 69 families and 19 orders. Passeriformes was the most dominant order with 41 families and 174 species and Muscicapidae was the most dominant family with 12 genera and 32 species. Most birds were altitudinal migrants (39%), insectivorous (45%), and occasional (44%) in terms of residency pattern, feeding guild, and abundance, respectively. Only one species (Ardea insignis) was listed as Critically Endangered and one (Haliaeetus leucoryphus) as Endangered. Our study identified the non-protected regions of Trashiyangtse District as an important bird diversity area in Bhutan. 

scholarly journals Population density and structure of birds breeding in an urban habitat dominated by large baobabs (Adansonia digitata), Northern Namibia

2019 ◽  
Vol 27 (4) ◽  
pp. 354-360
Author(s):  
G. Kopij
Keyword(s):  
Population Density ◽  
Nest Predation ◽  
Bird Species ◽  
Mapping Method ◽  
Urban Habitat ◽  
Adansonia Digitata ◽  
Feeding Guild ◽  
Avian Community ◽  
Breeding Bird ◽  
The Town

Large baobabs are regarded as key plant species in the savannah biome. In this study their role in shaping the avian community has been evaluated. The territory mapping method has been employed to quantify the avian breeding community in the town Outapi (ca. 130 ha), Northern Namibia, well-endowed with large baobabs. A total of 29 breeding bird species were recorded. The alien House Sparrow was by far the most numerous species comprising 48.4% of all breeding birds. The Blue Waxbill and African Palm Swift were also classified as dominant species, comprising together 17.4%. Granivores were by far the most numerous feeding guild, comprising 77.2% of all birds breeding, while the insectivores comprised only 11.8%. Birds nesting in/on buildings comprised 52.7%, those nesting on trees/shrubs – 42.0%. The population densities of many bird species (e.g. doves from the genus Stepropelia, bulbuls, weavers) were comparatively low. Such a situation could have been caused by the exceptionally high population density of the Pied Crow. In the study area, there were 15 breeding pairs and about 100–150 non-breeding individuals. The baobabs may provide them with a feeding resource in the form of the sweet fruits. The crows, as nest predators, feed also on the eggs and nestlings of other birds. Doves seem to be especially prone to such predation, as their nests are easily to detect and destroy. As a result, they have to breed in low density. This in turn, may release other dominant granivores in the study area, namely sparrows. They are not vulnerable to crow nest predation, as their nests are usually well-concealed under eaves and in holes of buildings.

scholarly journals Feeding guilds of the avifauna of District Kargil in Jammu and Kashmir State

2013 ◽  
Vol 14 (1&2) ◽  
pp. 107-111
Author(s):  
Tsewang Motup ◽  
D. N. Sahi
Keyword(s):  
Rocky Mountains ◽  
Bird Species ◽  
Feeding Guilds ◽  
Line Transect ◽  
Feeding Guild ◽  
Jammu And Kashmir ◽  
Bird Census ◽  
Point Transect ◽  
Line Transect Method ◽  
Arid Desert

A survey of the avifauna of district Kargil was carried out using a combination of Line Transect method and Point Transect method to record the avifaunal diversity and their feeding guilds. The bird census was carried out from April 2010 to April 2012. The study area lies between 340 15' to 340 47' 30'' North latitudes and 75? 45' to 76? 3' East longitudes. The area constitutes a part of the Trans-Himalayas in Jammu And Kashmir State. The area is comprised of high rocky mountains with snow bound peaks and arid desert devoid of natural vegetation. The altitudinal range of the area varies between 2430m to 4192m above msl. The study revealed 102 species of birds. Six major feeding categories were considered viz. insectivorous, carnivorous, grainivorous, omnivorous, frugivorous and herbivorous. The highest number of bird species was observed to utilize more than one feeding guild followed by insectivorous, carnivorous, grainivorous and omnivorous bird species. Feeding guild of 1 species i.e., Black-crowned Night Hereon was not recorded during the study.

scholarly journals Structurally complex farms support high avian functional diversity in tropical montane Ethiopia

2013 ◽  
Vol 29 (2) ◽  
pp. 87-97 ◽  
Author(s):  
Aaron D. Gove ◽  
Kristoffer Hylander ◽  
Sileshi Nemomissa ◽  
Anteneh Shimelis ◽  
Woldeyohannes Enkossa
Keyword(s):  
Bird Species ◽  
Feeding Guilds ◽  
Forest Conversion ◽  
Forest Fragments ◽  
Feeding Guild ◽  
Species Accumulation Curves ◽  
Point Counts ◽  
Forest Sites ◽  
Agricultural Habitat ◽  
Regional Species Pool

Abstract:Of all feeding guilds, understorey insectivores are thought to be most sensitive to disturbance and forest conversion. We compared the composition of bird feeding guilds in tropical forest fragments with adjacent agro-ecosystems in a montane region of south-west Ethiopia. We used a series of point counts to survey birds in 19 agriculture and 19 forest sites and recorded tree species within each farm across an area of 40 × 35 km. Insectivores (~17 spp. per plot), frugivores (~3 spp. per plot) and omnivores (~5 spp. per plot) maintained species density across habitats, while granivores and nectarivores increased in the agricultural sites by factors of 7 and 3 respectively. Species accumulation curves of each guild were equal or steeper in agriculture, suggesting that agricultural and forest landscapes were equally heterogeneous for all bird guilds. Counter to most published studies, we found no decline in insectivore species richness with forest conversion. However, species composition differed between the two habitats, with certain forest specialists replaced by other species within each feeding guild. We suggest that the lack of difference in insectivorous species numbers between forest and agriculture in this region is due to the benign nature of the agricultural habitat, but also due to a regional species pool which contains many bird species which are adapted to open habitats.

scholarly journals Avian richness of the Basanta Protected Forest, far-western lowland Nepal: Implication for conservation

2020 ◽  
Vol 4 (2) ◽  
pp. 68-84
Author(s):  
Hiru Lal Dangaura ◽  
Naresh Pandey ◽  
Dhirendra Bahadur Chand ◽  
Krishna Prasad Bhusal
Keyword(s):  
Species Richness ◽  
National Park ◽  
Bird Species ◽  
Temporal Distribution ◽  
Avian Community ◽  
Conservation Implications ◽  
The Family ◽  
Farmland Bird ◽  
Baseline Information ◽  
Gyps Bengalensis

Birds are important components of biodiversity and acts as an indicator of habitat quality, productivity and stability. This study aimed to document species richness and assess the temporal distribution pattern of globally threatened bird species in the Basanta Protected Forest (BPF), one of the largest corridor forests which connects Dudhwa National Park (India) with protected areas of western lowland Nepal. During study period of ten years from 2010 to 2019, a total of 381 bird species from 78 families of 19 orders were recorded. Order Passeriformes had the highest species richness (n=180) followed by order Accipitriformes and Charadriiformes. Among the families, the family Muscicapidae had the highest species richness (n=31), followed by Accipitridae and Anatidae. Majority of bird recorded were forest bird followed by wetland and farmland bird species. Fifteen globally threatened species like red-headed vulture (Sarcogyps calvus), white-rumped vulture (Gyps bengalensis), slender-billed vulture (Gyps tenuirostris), steppe eagle (Aquila nipalensis) and Egyptian vulture (Neophron percnopterus) were recorded in the BPF. Extensive avian survey in the BPF is important for further exploration of avian community along with its driving factors, which might play a crucial role in developing baseline information and implementing conservation implications.

scholarly journals The Survey of Avifauna in the natural habitat and their adjoining areas of Harbhajwala, Dehradun, India

2021 ◽  
pp. 162-167
Author(s):  
Rekha Rawat ◽  
Keyword(s):  
Threatened Species ◽  
Natural Habitat ◽  
Bird Species ◽  
Avian Species ◽  
Migratory Species ◽  
Egyptian Vulture ◽  
Number Of Species ◽  
The Family ◽  
Near Threatened

The present study deals with the observation of avifauna in the Natural habitat and their adjoining areas of Harbhajwala in Dehradun, Uttarakhand. The study was carried out between December 2018 to October 2020. We observed 114 bird species, belonging to 50 families during the study period. Out of these 97 residents and 19 winters, migratory species were identified. The percentage of resident and winter visitor avian species was found to be 84% and 16%. Then the maximum number of species recorded from the family Muscicapidae. During the observation, we observed the Egyptian Vulture and Alexandrine Parakeet as Endangered and near-threatened species respectively according to IUCN. The presence of threatened species indicates the more conservation efforts are needed in the study area.

scholarly journals Avifaunal Diversity in Important Bird Areas of Western Nepal

2021 ◽  
Author(s):  
Saroj Shrestha ◽  
Sony Lama ◽  
Ang Sherpa ◽  
Munmun Tamang
Keyword(s):  
Public Awareness ◽  
Geographical Location ◽  
Bird Species ◽  
Iucn Red List ◽  
Bird Diversity ◽  
Late Winter ◽  
Avian Community ◽  
Illegal Hunting ◽  
Bird Survey ◽  
The Family

Barekot rural municipality of Jajarkot district is an Important Bird Areas (IBAs) in Western Nepal. In recent years, illegal hunting and trapping-related cases have increased in this area. Additionally, a hydropower project with a capacity of 410 MW is being constructed within Barekot. The present study aims to update the preliminary checklist of birds and identify the underlying threats to the bird population in this region. Bird survey was conducted in four monitoring blocks of Barekot during the late winter of 2021. Also, a series of consultation meetings and interviews with the local stakeholders were organized to collect information regarding the extant threats. This study revealed eighty-seven bird species of 10 orders and 34 families. Birds most commonly recorded from the family Muscicapidae and order Passeriformes. Among the total recorded species, two species are listed in the IUCN Red List of Nationally Vulnerable Category. Similarly, five species were listed on CITES Appendix II and one species on CITES Appendix I. Approximately 82% of total bird species were of resident type. Despite a decline in bird diversity, Barekot’s unique geographical location still makes it an important IBA in Nepal. Bird numbers have plummeted due to human intrusion and disturbance, and natural system modifications. Based on our findings, we recommend landscape-level research, on the impacts of hydropower projects, roads, poaching, and impacts of the Covid-19 pandemic. Similarly, future conservation efforts should also emphasize preventing habitat fragmentation and raising public awareness. Keywords: Avian community; Bird checklist; Important Bird Area; Threats

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