Diurnal activity budgeting of Large Whistling Teal Dendrocygna bicolor (Vieillot, 1816) (Anseriformes: Anatidae) in Deepor Beel wetlands, Assam, India

Das, Jyotismita; Deka, Hemen; Saikia, Prasanta Kumar

doi:10.11609/jott.o2682.2263-7

Cited by 4 publications

(4 citation statements)

References 10 publications

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“…Ali et al (2016) reported that the proportion of time allocated for sleeping ranged between 40% and 75% in white-headed duck, ferruginous duck, Eurasian teal, common pochard, and tufted duck. Das et al (2011) and Draidi et al (2019) also reported similar diurnal activity patterns in fulvous whistling duck and ferruginous duck, respectively. In the present study, resting, including sleeping inthe RCPs,was the dominant activity during the entire wintering period.…”

Section: Discussionsupporting

confidence: 54%

“…Diurnal variations in the feeding time were prominent during the study period. Marked diel fluctuations in the time-activity budgets were also reported for white-headed duck, shelduck, and fulvous whistling teal (Green et al, 1998b;Boulekhssaim et al, 2006;Das et al, 2011;Draidi et al, 2019). Khan et al (1998) studied selected activities of nonbreeding common pochards at Sarp Lake, Turkey, and recorded a negative correlation between foraging and swimming, resting and swimming, and swimming and preening.…”

Section: Discussionmentioning

confidence: 89%

“…The timeactivity budgets of common pochards (Green, 1998a;Ali et al, 2016) and ferruginous ducks (Sabir, 2004;Draidi et al, 2019) have been studied. Although the time-activity budgets of several other wetland ducks (Green et al, 1998a;Das et al, 2011;Ali et al, 2016;Saker et al, 2016) and shorebirds (Morrier and McNeil, 1991;Marteinson et al, 2015) are on record, such studies on RCPs are altogether absent. The only report on the behavior of a hybrid of RCPs (Netta rufina × Aythyanyroca) was made by Randler (2003).…”

Section: Introductionmentioning

confidence: 99%

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Diurnal time-activity budget and foraging techniques of red-crested pochards (Netta rufina) wintering at the wetlands of West Bengal, India

Mukherjee¹,

Pal²,

Mukhopadhyay³

2020

Turk J Zool

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The present study aimed at recording the time-activity budget and feeding techniques of red-crested pochards (RCPs) to test the hypotheses that feeding techniques were influenced by the sexes and contrasting physical conditions of the habitat. The timeactivity budget was quantified using the scanned sample approach. In this study, the mean sex ratio of the RCPs was recorded as 0.655. Dominant behavior was sleeping or resting (42.8% in February to 47.0% in January), followed by swimming (27.1% in February to 29.8% in December), feeding (10.9% in December to 16.6% in February), and preening (9.0% in January to 12.1% in February). During the diurnal hours, resting was highest in the morning, while swimming and feeding were both highest midday. Climatic factors, such as the maximum and minimum air temperatures, maximum and minimum air temperature differences, and day length, were considered to be influential on the diurnal time activities of the RCPs. Male birds were more frequent divers than the females and the duration of diving was greater in males than in females. However, in shallow water, beak dipping and upending were major foraging techniques in both sexes. The depth of the water played a significant role in the selection of the feeding techniques.

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Section: Discussionsupporting

confidence: 54%

Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

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Diurnal time-activity budget and foraging techniques of red-crested pochards (Netta rufina) wintering at the wetlands of West Bengal, India

Mukherjee¹,

Pal²,

Mukhopadhyay³

2020

Turk J Zool

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“…They can also move to grassland habitat for foraging with minimal energy expenditure to move between habitats. Birds exhibit great flexibility in adjusting time budget to maintain their daily ecological requirements (Das et al, 2011) that could be influenced by several factors such as weather, season and habitat (Bull, 1997). The overall diurnal activity patterns in Egyptian geese showed that most of the birds were observed resting, followed by foraging.…”

Section: Discussionmentioning

confidence: 99%

Diurnal activity patterns, habitat use and foraging habits of Egyptian goose (Alopochena egyptiacus Linnaeus, 1766) in the Boyo wetland, southern Ethiopia

Kassa

Balakrishnan

Afework

2021

SEJS

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Egyptian goose (Alopochena egyptiacus) is a resident bird species in Africa South of the Sahara occurring throughout the entire Nile Valley. Despite the wide distribution, the available information on its behavioral ecology is limited in Ethiopia. A study on the activity patterns, habitat use and foraging habits of Egyptian goose was carried out in and around Boyo wetland, Ethiopia, during the dry and wet seasons. Scan sampling method was used to study the activity patterns and habitat use of Egyptian goose in grassland, mudflat and shallow water habitats of the wetland. The feeding behavior of Egyptian goose was also observed in the surrounding farmland habitats using scan sampling method. Generally, Egyptian geese spent most of their time resting (39.81%) followed by foraging (32.64%). They spent 10.43% of their time in comfort movement preening or stretching. The rest of their time was allocated for locomotion (6.63%), vigilance (5.75%), and social behavior (1.59%), and other activities (2.86%). Most of the birds were engaged in foraging activity in the morning (07:00-9:00 h) and afternoon (16:00 - 18:00 h) hours both during the wet and dry seasons. About 39% of Egyptian geese were scanned in mudflat, 31.5% in grassland, and 30.05% in shallow water habitats engaged in different activities. Most individuals used the grassland habitat for foraging during the dry (59.5%) and wet (74%) seasons, while they used shallow water and mudflat habitats for resting both during the wet and dry seasons seasons. The birds were observed foraging mainly grass during the dry (93.62%) and wet (59.52%) seasons. The Egyptian geese show diurnal activity pattern with feeding peaks in early morning and late afternoon hours as is observed in many other avian taxa. The Boyo wetland is also as an important foraging ground for this species and other birds in the area. Further ecological studies on the species and impact of human activities on the Boyo wetland should be conducted for the conservation of the avifauna.

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Time activity budget and foraging behavior: important determinants of resource sharing and guild structure in wintering waterbirds

Mukherjee

Pal²,

Das

et al. 2023

Eur J Wildl Res

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Diurnal activity budgeting of Large Whistling Teal Dendrocygna bicolor (Vieillot, 1816) (Anseriformes: Anatidae) in Deepor Beel wetlands, Assam, India

Cited by 4 publications

References 10 publications

Diurnal time-activity budget and foraging techniques of red-crested pochards (Netta rufina) wintering at the wetlands of West Bengal, India

Diurnal time-activity budget and foraging techniques of red-crested pochards (Netta rufina) wintering at the wetlands of West Bengal, India

Diurnal activity patterns, habitat use and foraging habits of Egyptian goose (Alopochena egyptiacus Linnaeus, 1766) in the Boyo wetland, southern Ethiopia

Time activity budget and foraging behavior: important determinants of resource sharing and guild structure in wintering waterbirds

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