Impact of Urbanization on House Sparrow Distribution: A Case Study from Greater Kolkata, India

Modak, Biplob Kumar

doi:10.1007/s12595-015-0157-4

Cited by 8 publications

(9 citation statements)

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“…It is important to note that a synanthropic species i.e. house sparrow (Passer domesticus) was not abundant at urban site implying decline of this species as many urban habitats around the world (Summers-Smith, 2007;Joshi and Bhatt, 2011;Mondak, 2017).…”

Section: Discussionmentioning

confidence: 99%

Avifaunal Assemblage along Rural-Urban Gradients in Aligarh, Uttar Pradesh, India

2019

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Studies assessing the effect of urbanization on bird community structure largely carried out in developed countries and little is known about the developing region particularly in India. Bird diversity, richness, composition and guild structure was examined at urban, semi-urban, semi-rural and rural-natural sites in Aligarh, Uttar Pradesh. Each site was sampled using 90 fixed radius point counts between January and June 2016. Semi-urban site was more species rich (2.38 ± 0.06), diverse (0.80 ± .01) and even (0.90 ± .00) than other three urban-rural gradient sites. Density of bird peaked at urban site (43.09 ± 4.7). Numerically, urban site was dominated by omnivore species which was replaced by insectivorous species at semi-natural, semi-rural and rural-natural sites. The current information corroborates the earlier studies assessing impact of urbanization of birds and Conell’s intermediate disturbance hypothesis of higher richness and diversity at intermediate disturbance.

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Section: Discussionmentioning

confidence: 99%

Avifaunal Assemblage along Rural-Urban Gradients in Aligarh, Uttar Pradesh, India

2019

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“…Except a few reports like SoIB (2020), majority of the researches observed a gradual decline in the populations of House Sparrow over the past few decades in India (Modak, 2017). Also, many other nonscientific organizations have been raising their voices for the conservation of House Sparrow.The factors like agricultural intensification, high transportation, urbanization, loss of nesting opportunities, electromagnetic radiations, competition for food,use of pesticides, air pollution, climate change, etc.…”

Section: S169mentioning

confidence: 99%

“…Also, many other nonscientific organizations have been raising their voices for the conservation of House Sparrow.The factors like agricultural intensification, high transportation, urbanization, loss of nesting opportunities, electromagnetic radiations, competition for food,use of pesticides, air pollution, climate change, etc. were attributed to the major threats to House Sparrow (De Laet and Summers-Smith, 2007;Khera et al, 2010;Dandapat et al, 2010;Lakhera, 2015;Modak, 2017;Roshnath et al 2018;Aslan et al, 2018;Nath et al 2019;Choudhary et al, 2019). The majority of such impacts were, however, reported from the urban ecosystems, which are negligible in the hilly areas of Uttarakhand due to varied climatic, geophysical, and demographic conditions (Lakhera, 2015;Modak, 2017;Roshnath et al, 2018).…”

Section: S169mentioning

confidence: 99%

“…were attributed to the major threats to House Sparrow (De Laet and Summers-Smith, 2007;Khera et al, 2010;Dandapat et al, 2010;Lakhera, 2015;Modak, 2017;Roshnath et al 2018;Aslan et al, 2018;Nath et al 2019;Choudhary et al, 2019). The majority of such impacts were, however, reported from the urban ecosystems, which are negligible in the hilly areas of Uttarakhand due to varied climatic, geophysical, and demographic conditions (Lakhera, 2015;Modak, 2017;Roshnath et al, 2018).…”

Section: S169mentioning

confidence: 99%

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Impacts of the Changing Housing Patterns on The Populations of House Sparrow Passer domesticus (Passeriformes: Passeridae) in the Rural Hills of Uttarakhand: A Case Study

Waldia¹,

Bhatt²

2022

EEC

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The present study was aimed to assess the impacts of the changing housing patterns on the populations of House Sparrow in the rural areas of the hills of the Pithoragarh region in Uttarakhand. The sampling sites were chosen in such a manner to include the traditional stone masonry, mixed (partially concrete), and modern concrete houses. We recorded the density of House Sparrow (using point count method), density of nest, and sex ratios in the different categories of houses at different time durations of the day. In this study (i) the traditional stone masonry houses recorded the highest density of House Sparrow and nests, (ii) changing housing patterns did not affect the sex ratio in House Sparrow and, (iii) the changing housing patterns in the rural areas of the hills of Uttarakhand appeared to be one of the causes of population decline in House Sparrow. The conservation measures we have outlined here include a comprehensive public awareness and education programmes, installation of artificial nest boxes in the houses and gardens, and protection of House Sparrow under the rules of Wildlife (Protection) Act (1972), Government of India.

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“…Several hypotheses have been proposed to explain the decline of House Sparrow populations, including rampant urbanization (Shaw et al 2008;Modak 2017), unavailability of nesting sites due to the prevalence of modern architecture, air pollution, increase in vehicular traffic, intolerable changes in its optimal habitat (Murgui 2009), indiscriminate use of pesticides, paucity in invertebrate food especially during breeding season (Peach et al 2008;Pandian 2021), intra-specific and interspecific competition for resources (Ghosh et al 2010), and predation by feral cats. Electromagnetic radiation and unleaded petrol exhaust are also likely caused these species to undergo local extinction, according to Balmori et al (2007).…”

Section: Introductionmentioning

confidence: 99%

Short Communication: A pilot-study on the occurrence and probable factors influencing the population decline of House Sparrow (Passer domesticus) along an urbanization gradient in Coimbatore district, India

Narayanappa¹,

Gautam²,

Singh³

2022

Biodiversitas

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Abstract. Narayanappa Y, Gautam A, Mahobiya K, Singh A. 2022. Short Communication: A pilot-study on the occurrence and probable factors influencing the population decline of House Sparrow (Passer domesticus) along an urbanization gradient in Coimbatore district, India. Biodiversitas 23: 3884-3889. The House sparrow is a widely distributed, human-commensal bird species across the globe. Over the past few decades, the population of this species has been reported to be declining at an alarming rate. The primary factor postulated to cause this decline is urbanization which leads to the unavailability of suitable nesting sites, a dearth of invertebrate food, the advent of phone towers, and electromagnetic radiation. The current study aims to document the occurrence, abundance and scrutinize the reasons for the decline of House Sparrows along a gradient of urban to rural in Coimbatore district, India. To estimate the abundance of House Sparrows, we counted them in16-points within a three 3km-radius along an urban-rural gradient. Information on gender, cluster size, detection distance, an angle from the observer, etc. were collected. The questionnaire survey was conducted to understand people's perceptions about the importance of the species and its current status. Along the gradient, we observed an average of 69.8 (±24.9) individuals. The species were abundant in rural and semi-urban areas, which is attributed to the availability of nesting sites, such as roof cavities, eaves, mud-walls, adequate feeding sources, presence of open scrub patches and garbage dumping sites adjacent to the residential spaces. However, sparrows were not present in the urban areas, even in their preferred habitats. According to the questionnaire survey, the likely causes for their absence are an increase in vehicle traffic, modern buildings, high-rise structures, and electromagnetic radiation from cell phone towers.

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Impact of Urbanization on House Sparrow Distribution: A Case Study from Greater Kolkata, India

Cited by 8 publications

References 4 publications

Avifaunal Assemblage along Rural-Urban Gradients in Aligarh, Uttar Pradesh, India

Avifaunal Assemblage along Rural-Urban Gradients in Aligarh, Uttar Pradesh, India

Impacts of the Changing Housing Patterns on The Populations of House Sparrow Passer domesticus (Passeriformes: Passeridae) in the Rural Hills of Uttarakhand: A Case Study

Short Communication: A pilot-study on the occurrence and probable factors influencing the population decline of House Sparrow (Passer domesticus) along an urbanization gradient in Coimbatore district, India

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