Birds in Kurigram district of Bangladesh

Khan, Shawkat Imam; Naher, Habibon

doi:10.11609/jott.o1698.245-50

Cited by 10 publications

(6 citation statements)

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“…Based on their seasonal dispersal pattern, birds were classified as resident (R), summer visitor (SV), winter visitor (WV) or passage migrant (P), following Grimmett et al (2011). We also assigned a local status to each species following Khan and Naher (2009), where very common (Vc) bird species were recorded on 80-100% of field visits, common (Co) species on 50-79% of field visits, fairly common (Fc) on 20-49% of field visits and rare (Ra) on less than 20% of the field visits. The conservation status of birds and their global population trend were taken from the IUCN Red List (Del Hoyo et al 2014).…”

Section: Methodsmentioning

confidence: 99%

Composition, diversity and foraging guilds of avifauna in a suburban area of southern West Bengal, India

Mukhopadhyay¹,

Mazumdar

2017

The Ring

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Avian communities are very good indicators of any ecosystem. Despite the alarming consequences of rapid urbanization, studies of avian diversity in the human-dominated landscapes of India are very few. Therefore, we studied the avian assemblage of Bongaon in southern West Bengal, India, a suburban area whose avifauna has thus far remained undocumented. Bird surveys were carried out from June 2015 to May 2016, following the fixed-radius (25 m) point count method together with opportunistic observations. We recorded 119 avian species belonging to 53 families.Ardeidaewas the most diverse avian family in the study area (RDi value = 5.882). Among the recorded avifauna, 89 species were resident, 26 species were winter visitors, three species were summer visitors, and one species was a passage migrant. Species richness of the resident and passage migrant species did not vary seasonally, while the winter and summer visitors displayed significant seasonal variation. In this suburban area, the species richness of feeding guilds varied significantly. Most birds were insectivorous (41.2%), followed by carnivorous (24.4%), omnivorous (18.5%), granivorous (7.6%), frugivorous (3.4%), nectarivorous (3.4%) and herbivorous species (1.7%). Maximum species richness was recorded in November and minimum species richness in July. Black-headed IbisThreskiornis melanocephalusand Alexandrine ParakeetPsittacula eupatriaare two near-threatened species found in this region. Interestingly, six species having a globally declining trend are still very common in the study area. Long-term studies are required to monitor any change in the avian communities of this suburban landscape resulting from urbanization.

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Section: Methodsmentioning

confidence: 99%

Composition, diversity and foraging guilds of avifauna in a suburban area of southern West Bengal, India

Mukhopadhyay¹,

Mazumdar

2017

The Ring

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“…Birds were identified and their migratory status (resident/ migratory) were determined using field guides (Grimmett et al 2016). We also calculated the percentage occurrence score of each species to assess their local abundance, where very common (Vc) bird species were recorded on 80-100% of field visits, common (Co) species on 50-79% of field visits, fairly common (Fc) on 20-49% of field visits and rare (Ra) on less than 20% of the field visits (Khan & Naher 2009). The conservation status of birds and their global population trend were taken from the IUCN Red List (del Hoyo et al 2014).…”

Section: Methodsmentioning

confidence: 99%

Influence of habitat features of urban streetscapes on richness and abundance of avian species

2021

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In human-dominated landscapes, roads are known to negatively influence birds causing decline in species richness, as well as reduction in the number of avian species. However, linear stretches of green spaces formed by roadside plantations in urban streetscapes can support diverse avian communities. In spite of being an integral habitat feature of urban areas, there is a clear paucity of studies on avian diversity in urban streetscapes. The present study was carried out in Kolkata, where data on avian species richness and abundance was collected from 16 randomly placed belt transects (replicates), each of 500 m length and 20 m width, on different major roads throughout the study area keeping a minimum gap of 200 m between adjacent transects to avoid data overlapping. Each of these transects were traversed on foot twice in a month from January to March 2017 during days with calm weather conditions. We recorded 31 species of birds belonging to 8 orders and 19 families, of which maximum species belonged to the order Passeriformes (13 species). We found that both abundance and species richness of birds in transects with higher number of trees (78±4.1 individuals and 19.55±1.703 species of birds) were significantly higher than transects with fewer trees (53.74±2.5 individuals and 9.5±0.789 species of birds). Amongst various habitat features along these streetscapes, the total number of trees positively influenced both species richness (GLMM: F1, 90=14.485, P<0.05) and abundance of birds (GLMM: F1, 90=8.081, P<0.05). However, the other land use variables (i.e. number of bushes, waterbodies, markets and buildings) neither influenced the abundance of birds nor the species richness. Our findings can be useful for urban development to perceive the importance of various habitat features in urban streetscapes in sustaining avian diversity.

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“…They also help in pest control, propagule dispersal, and nutrient cycling, retarding potential disease outbreaks in and around the wetlands (Green & Elmberg 2014). Waterbirds have been one of the chief sources of feathers, meat and eggs (Krcmar et al 2010), and they also contribute to cultural or religious values in different parts of the world (Kear 1990).…”

Section: Introductionmentioning

confidence: 99%

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

Mandal¹,

Roy

Siddique

2021

J. Threat. Taxa

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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.

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Birds in Kurigram district of Bangladesh

Cited by 10 publications

References 0 publications

Composition, diversity and foraging guilds of avifauna in a suburban area of southern West Bengal, India

Composition, diversity and foraging guilds of avifauna in a suburban area of southern West Bengal, India

Influence of habitat features of urban streetscapes on richness and abundance of avian species

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

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