Winter Time-Activity Budgets of Diving Ducks on Eastern Texas Reservoirs

Crook, Shaun L.; Conway, Warren C.; Mason, Corey D.; Kraai, Kevin J.

doi:10.1675/063.032.0408

Cited by 13 publications

(10 citation statements)

References 36 publications

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“…Similar methods have been often used to study the behaviour of numerous species of wetland birds (Tacha 1988), including waterfowl (Poulton et al 2002, Michot et al 2006, Crook 2007, Crook et al 2009). Field observations were conducted from January 2012 to January 2013 during daylight hours.…”

Section: Methodsmentioning

confidence: 99%

Habitat Use and Behaviours of Introduced Muscovy Ducks (Cairina moschata) in Urban and Suburban Environments

Downs¹,

Loraamm²,

Anderson³

et al. 2017

SubSust

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Section: Methodsmentioning

confidence: 99%

Habitat Use and Behaviours of Introduced Muscovy Ducks (Cairina moschata) in Urban and Suburban Environments

Downs¹,

Loraamm²,

Anderson³

et al. 2017

SubSust

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“…Habitat loss and degradation are thought to have contributed to the declines of these duck taxa and many others (Baldassarre and Bolen 1994). Studies collecting time-activity budgets on waterfowl have provided important insight into habitat use (Poulton et al 2002, Michot et al 2006, Crook et al 2009, foraging impacts (Tatu et al 2007), and niche partitioning (Titman 1981, Rave and). Because of niche partitioning among taxa of ducks, large distances often exist between similar taxa , which makes simultaneously recording interspecific behavior of several members of a taxonomic family difficult.…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…Simultaneously collecting time-activity budgets on these 3 closely related taxa will: 1show how they interact with each other, (2) provide insight into how they spend their time, 3allow for speculation of dietary and energy needs, and (4) acquire new information to be used for management of the waterfowl and Laguna Cartagena (Adams et al 2000, Crook et al 2009. Our objectives were to compare: (1) diurnal and nocturnal time-activity budgets of masked duck,…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…Our observations began at one side of the lagoon and moved to the other side to avoid sampling the same individual repeatedly in a short amount of time. We randomly selected individuals of each sex by moving a spotting scope across the lagoon and the bird closest to the center of the scope was the one we observed , Poulton et al 2002, Crook et al 2009. Sampling various locations within the lagoon likely reduced our frequency of recording the same individual multiple times during a sampling period;…”

Section: Time-activity Budgetsmentioning

confidence: 99%

“…locomotion (swimming or flying), (6) courtship (pair bond displays, copulation, or headpumping), (7) comfort movement (preening, stretching, or bathing), and (8) sleeping (bill tucked under wing) (Hohman 1984, Poulton et al 2002, Crook et al 2009.…”

Section: Time-activity Budgetsmentioning

confidence: 99%

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Behavior of Stiff-Tailed Diving Ducks and West Indian Whistling Ducks in Laguna Cartagena National Wildlife Refuge, Puerto Rico

Goodman¹

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Masked ducks (Nomonyx dominicus), migratory northern ruddy ducks (Oxyura jamaicensis jamaicensis), non-migratory West Indian ruddy ducks (Oxyura j. jamaicensis Gmelin), and West Indian whistling-ducks (Dendrocygna arborea) are all duck taxa that have declining populations in Puerto Rico. Masked ducks are listed as endangered in Puerto Rico and are a species of concern in the Caribbean while West Indian whistling ducks are considered an "at-risk" species listed as vulnerable. All 4 taxa of duck have areas of their life history where information is lacking including behavioral information. I studied the 4 taxa of duck at Laguna Cartagena National Wildlife Refuge from January-April 2015 and 2016. I quantified diurnal and nocturnal time activity-budgets of masked ducks (n = 142), West Indian ruddy ducks (n = 3,765), and Northern ruddy ducks (n = 1,401) and also collected dive and inter-dive times on masked ducks (n = 60), West Indian ruddy ducks (n = 445), and northern ruddy ducks (n = 70). Behaviors varied among taxa, between sexes, and between diurnal and nocturnal sampling periods (P < 0.01). Resting and sleeping were common behaviors observed during the day and night, but all three taxa fed more at night with more time spent feeding by West Indian ruddy ducks (Day, x ̅ = 12.3% SE = 0.85, Night, x ̅ = 19.8% SE = 0.68) than the northern ruddy ducks (Day, x ̅ = 4.4% SE = 0.75, Night, x ̅ = 6.3% SE = 1.9), but northern ruddy ducks were observed to have a longer dive time (22.9+0.75 seconds) than West Indian ruddy ducks (18.8+0.02 seconds). Northern ruddy ducks and West Indian ruddy ducks time-activity budgets varied with 7 of 8 behavioral categories during the day and 5 of 8 behavioral categories at night differing. Ecological differences such as body size or migration of northern ruddy ducks may account for the differences in behavior when compared to non-migratory West Indian ruddy ducks.

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Sanctuary for migrating and wintering waterfowl: Synthesis and insights for waterfowl management and conservation planning

Davis,

Brasher,

Hagy

2024

J Wildl Manag

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Waterfowl use a diversity of resources (e.g., food, structure, sanctuary) to meet energetic, social, and other life‐history demands during the non‐breeding period. Waterfowl often seek areas with limited human disturbance (i.e., sanctuary) during autumn and winter when hunting seasons are open perhaps to reduce exposure to mortality risks, minimize energy expenditure, and increase foraging efficiency, all of which should enhance survival and subsequent fitness. Prior studies of sanctuary use by waterfowl have mostly focused on patterns of abundance and behavior, with many documenting differential diel movements of marked birds in and around sanctuaries. Although reduced mortality risk is likely associated with sanctuary use, much less is known about the potential effects on energy expenditure, body condition, reproductive consequences at the individual level, and seasonal distribution with respect to viewing and harvest potential. We consider these aforementioned factors among the most significant gaps in our understanding of the function of sanctuary in waterfowl management. As waterfowl hunter recruitment, retention, and reactivation have become a major initiative of many natural resource agencies and a core principle of the North American Waterfowl Management Plan, we discuss the potential role of sanctuary relative to these efforts. Herein, we review historical aspects of waterfowl sanctuary, introduce hypotheses about its potential role in habitat resource management and conservation planning during autumn and winter, discuss our knowledge of the effects of sanctuary on waterfowl, and share insights to inform decisions about the role of sanctuary in waterfowl management given currently available evidence and remaining uncertainties. Our review describes the existing evidence for the biological and social outcomes of sanctuary, draws some conclusions about the role of sanctuary in natural resource management given the available evidence, and outlines potential research opportunities to help us make informed decisions regarding sanctuary implementation for waterfowl.

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Winter Time-Activity Budgets of Diving Ducks on Eastern Texas Reservoirs

Cited by 13 publications

References 36 publications

Habitat Use and Behaviours of Introduced Muscovy Ducks (Cairina moschata) in Urban and Suburban Environments

Habitat Use and Behaviours of Introduced Muscovy Ducks (Cairina moschata) in Urban and Suburban Environments

Behavior of Stiff-Tailed Diving Ducks and West Indian Whistling Ducks in Laguna Cartagena National Wildlife Refuge, Puerto Rico

Sanctuary for migrating and wintering waterfowl: Synthesis and insights for waterfowl management and conservation planning

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