Effects of Waterbird Colonization on Limnochemical Features of a Natural Wetland on Buxa Tiger Reserve, India, During Wintering Period

Chatterjee, Asitava; Adhikari, Shuvadip; Mukhopadhyay, Sajal

doi:10.1007/s13157-016-0851-7

Cited by 13 publications

(8 citation statements)

References 26 publications

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“…LWT which were flying or perching were also recorded separately along with those using the habitat directly. We also conducted random binocular-field counts of the populations of LWT to obtain a more-robust area-wise estimate [32][33][34][35] . A Nikon Fieldscope (25-75 x 82 ED), Bushnell Equinox Z (4.5 X 40) Night Vision and Nikon Action (10 X 50) binoculars were used for spotting the character details of the birds in sight.…”

Section: Estimation Of Density Of Lesser Whistling Teal (Lwt; Dendrocygna Javanica)mentioning

confidence: 99%

GIS Based Approach to Determine the Changes of Water Hyacinth (Eichhornia crassipes) Cover and Relation with Lesser Whistling Teal (Dendrocygna javanica) Assemblage at Santragachi Wetland, West Bengal

Begam¹,

Pal²,

Mitra

et al. 2021

Res. in Ecol.

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The present investigation is conducted to study the year wise (2011 to 2018) changes of water hyacinth (Eichhornia crassipes) cover at Santragachi Lake a Wetland under National Wetland Conservation Programme of India. Further the relationship between water hyacinth cover and the most abundant migratory waterbirds of Satragachi, Lesser Whistling Teal (LWT; Dendrocygna javanica) is assessed because this bird species is fully depended on water hyacinth mat for their roosting. The study comprises of eight satellite images procured from Google earth (2011 to 2018) to explore this relationship. A marked decline in the number of LWT at Santragachi wetland is observed in the year of 2017 and 2018. It is very interesting fact that from 2017-2018, the water hyacinth mat of this wetland is almost cleared before winter and the result of cluster analysis supports this fact. Significant positive correlation is also observed within LWT number and water hyacinth cover area (r = 0.7481 at p< 0.05) along with the total perimeter (r = 0.8648 at p< 0.05) of the water hyacinth islands at Santragachi wetland. However, open water area is also needed for diving, swimming, food searching for the LWT and other waterbirds. Therefore, more study is needed to optimize the clearing operations, focused on optimizing shape and size of water hyacinth islands for proper management of the waterbirds habitat.

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Section: Estimation Of Density Of Lesser Whistling Teal (Lwt; Dendrocygna Javanica)mentioning

confidence: 99%

GIS Based Approach to Determine the Changes of Water Hyacinth (Eichhornia crassipes) Cover and Relation with Lesser Whistling Teal (Dendrocygna javanica) Assemblage at Santragachi Wetland, West Bengal

Begam¹,

Pal²,

Mitra

et al. 2021

Res. in Ecol.

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“…Various authors like Kumar et al (2016), Chatterjee et al (2017), Chen et al (2019), Hamilton et al (2019) and Luo et al (2019) have analysed the distribution, density, diversity, composition and abundance of wetland birds around the world with diverse perspectives and interests. Nowadays, analysing the spatio-temporal dynamism of structure and diversity of avian communities has become essential to assess the impact of anthropogenic activities on the natural systems of wetlands as well as to ascertain the responses of the water birds to such environmental challenges (Cahill et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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

Mandal¹,

Roy

Ghosh

et al. 2021

Ornis Hungarica

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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.

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“…While the large pristine lakes of the Trans-Himalayas and Shivalik Hills are spared, the pristine wetlands at the foothills of the Himalayas (known locally as the Terai and Dooars) are steadily encroached upon for various social development purposes. The wetlands of the Himalayan foothills have been chosen for ages by various species of migratory birds as suitable wintering and staging sites with ample foraging resources (Chatterjee et al 2017). Altitudinal gradients, varied forest types, and habitat heterogeneity support diversified flora and fauna at the foothills of the Himalayas, including rich avifauna (Mohan and Kumar 2010, Acharya et al 2011, Joshi et al 2012, Naithani and Bhatt 2012, Chatterjee et al 2020.…”

Section: Introductionmentioning

confidence: 99%

“…This region is at the junction of two hotspots, the Himalaya Biodiversity Hotspot and the Indo-Burma Biodiversity Hotspot, adjacent to the two important Endemic Bird Areas: the Eastern Himalayan and Assam Plains EBAs (Islam and Rahmani 2004). However, few published works have focused exclusively on the diversity and ecology of waterbirds from sub-Himalayan habitats (Datta 2011(Datta , 2014Chatterjee et al 2013Chatterjee et al , 2017. The present study was carried out in two wetland habitats in the Eastern Himalayan foothills, located in close proximity (~40 km).…”

Section: Introductionmentioning

confidence: 99%

Community Structure of Migratory Waterbirds at Two Important Wintering Sites in a Sub-Himalayan Forest Tract in West Bengal, India

Chatterjee¹,

Adhikari²,

Pal³

et al. 2020

The Ring

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The waterbird community structures of two sub-Himalayan wetlands (Nararthali and Rasomati) situated in forested areas were compared during the wintering period. These wetlands had similar geophysical features but were subject to different conservation efforts. Sixty species of waterbirds, including four globally threatened species, were recorded during the study. Nararthali was found to be more densely inhabited (116.05±22.69 ind./ha) by birds than Rasomati (76.55±26.47 ind./ha). Density increased by 44.6% at Nararthali and by 59% at Rasomati over the years of the study, from 2008 to 2015. Winter visitors increased considerably at Nararthali (66.2%), while a 71.1% decrease at Rasomati clearly indicated degradation of habitat quality at that site during the later years. Luxuriant growth of Eichhornia crassipes, siltation, poor maintenance and unregulated tourist activities were the key factors leading to the rapid degradation of Rasomati. Nararthali, on the other hand, a well-managed wetland habitat, showed an increasing trend in bird densities. Therefore, poor habitat management and rapid habitat alterations were observed to be the main reasons for depletion of bird density in the wetlands of eastern sub-Himalayan forest regions.

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Effects of Waterbird Colonization on Limnochemical Features of a Natural Wetland on Buxa Tiger Reserve, India, During Wintering Period

Cited by 13 publications

References 26 publications

GIS Based Approach to Determine the Changes of Water Hyacinth (Eichhornia crassipes) Cover and Relation with Lesser Whistling Teal (Dendrocygna javanica) Assemblage at Santragachi Wetland, West Bengal

GIS Based Approach to Determine the Changes of Water Hyacinth (Eichhornia crassipes) Cover and Relation with Lesser Whistling Teal (Dendrocygna javanica) Assemblage at Santragachi Wetland, West Bengal

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

Community Structure of Migratory Waterbirds at Two Important Wintering Sites in a Sub-Himalayan Forest Tract in West Bengal, India

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