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Nest attendance, incubation constancy, and onset of incubation in dabbling ducks

Hartman, C Alex ; Ackerman, Joshua T ; Peterson, Sarah H ; Fettig, Brady ; Casazza, Mike ; Herzog, Mark P Giroud, Sylvain

PloS one, 2023-05, Vol.18 (5), p.e0286151-e0286151 [Periódico revisado por pares]

United States: Public Library of Science

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Título:
Nest attendance, incubation constancy, and onset of incubation in dabbling ducks
Autor: Hartman, C Alex ; Ackerman, Joshua T ; Peterson, Sarah H ; Fettig, Brady ; Casazza, Mike ; Herzog, Mark P
Giroud, Sylvain
Assuntos: Anas platyrhynchos ; Animal reproduction ; Animals ; Aquatic birds ; Behavior ; Biology and Life Sciences ; Birds ; Clutch Size ; Clutches ; Ducks ; Ecology and Environmental Sciences ; Egg laying ; Eggs ; Embryogenesis ; Embryonic development ; Embryonic growth stage ; Embryos ; Incubation ; Incubation behavior ; Mareca strepera ; Nest building ; Nesting Behavior ; Nests ; Night ; Oviposition ; Physiology ; Predation ; Recesses ; Social Sciences ; Spatula cyanoptera ; Success ; Temperature ; Thermal environments ; Time of use ; Waterfowl ; Wildfowl ; Zoological research
É parte de: PloS one, 2023-05, Vol.18 (5), p.e0286151-e0286151
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Competing Interests: The authors have declared that no competing interests exist.
Descrição: In birds, parents must provide their eggs with a safe thermal environment suitable for embryonic development. Species with uniparental incubation must balance time spent incubating eggs with time spent away from the nest to satisfy self-maintenance needs. Patterns of nest attendance, therefore, influence embryonic development and the time it takes for eggs to hatch. We studied nest attendance (time on the nest), incubation constancy (time nests were at incubation temperatures), and variation in nest temperature of 1,414 dabbling duck nests of three species in northern California. Daily nest attendance increased from only 1-3% on the day the first egg was laid to 51-57% on the day of clutch completion, and 80-83% after clutch completion through hatch. Variation in nest temperature also decreased gradually during egg-laying, and then dropped sharply (33-38%) between the day of and the day after clutch completion because increased nest attendance, particularly at night, resulted in more consistent nest temperatures. During the egg-laying stage, nocturnal nest attendance was low (13-25%), whereas after clutch completion, nest attendance was greater at night (≥87%) than during the day (70-77%) because most incubation recesses occurred during the day. Moreover, during egg-laying, nest attendance and incubation constancy increased more slowly among nests with larger final clutch sizes, suggesting that the number of eggs remaining to be laid is a major driver of incubation effort during egg-laying. Although overall nest attendance after clutch completion was similar among species, the average length of individual incubation bouts was greatest among gadwall (Mareca strepera; 779 minutes), followed by mallard (Anas platyrhynchos; 636 minutes) and then cinnamon teal (Spatula cyanoptera; 347 minutes). These results demonstrate that dabbling ducks moderate their incubation behavior according to nest stage, nest age, time of day, and clutch size and this moderation likely has important implications for egg development and overall nest success.
Editor: United States: Public Library of Science
Idioma: Inglês

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Nest attendance, incubation constancy, and onset of incubation in dabbling ducks

Hartman, C Alex ; Ackerman, Joshua T ; Peterson, Sarah H ; Fettig, Brady ; Casazza, Mike ; Herzog, Mark P Giroud, Sylvain

United States: Public Library of Science

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