Use of lakes by black duck broods in relation to biological, chemical, and physical features

Staicer, Cynthia A.; Freedman, Bill; Srivastava, Diane S.; Dowd, Nancy; Kilgar, Jennifer; Hayden, Jill A.; Payne, Fred; Pollock, Tom

doi:10.1007/978-94-011-1128-7_18

Cited by 11 publications

(12 citation statements)

References 20 publications

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“…Adverse fish effects on waterfowl may be to some extent mitigated by high pond/lake productivity (e.g. Staicer et al, 1994;Broyer & Calenge, 2010). Carp ponds are typically eutrophic and they receive additional nutrients from supplemental feeds, which are provided roughly in proportion to stock biomass.…”

Section: Discussionmentioning

confidence: 99%

“…Other pond attributes, such as water area, nesting site availability and shelter from predators, can be important for bird habitat selection as well (e.g. Staicer et al, 1994;Paracuellos, 2006;Broyer & Calenge, 2010). However, in human-managed aquatic systems, bird habitat preferences may not match the actual habitat suitability due to unpredictable habitat dynamics, such as seasonal changes in food supplies or water-level fluctuations (Anteau et al, 2012;Kloskowski, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Habitat selection and reproductive success of coot Fulica atra on ponds under different fish size and density conditions

Nieoczym

Kloskowski

2018

Hydrobiologia

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Fish may influence habitat selection and reproductive success in waterfowl. We investigated the effects of common carp Cyprinus carpio on breeding coots Fulica atra along a gradient of fish size structure and density, created by separate stocking of age cohorts in ponds in eastern Poland. Coot breeding densities were higher on ponds with low biomass of small-sized, young-of-the-year fish than on ponds with medium-or large-sized fish, stocked at high biomass densities; they also increased with increasing submerged vegetation biomass (an effect correlated with water transparency) and emergent vegetation cover. Densities of nektonic and epibenthic macroinvertebrates and of amphibian larvae were also negatively influenced by fish size/density gradient, while densities of emerging insects were not affected. However, coot breeding success per pair was similar among pond types, while positively related to submerged vegetation, indicating that either plant food abundance was more important than the overall trophic impact of fish or fledgling production was additionally limited by factors other than food. Carp may adversely affect pond habitats of waterfowl both via trophic interactions and through abiotic disturbance of ecosystem processes. In coots, however, the effects can be mitigated by maintenance of abundant emergent vegetation and of submerged macrophytes resistant to fish.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Habitat selection and reproductive success of coot Fulica atra on ponds under different fish size and density conditions

Nieoczym

Kloskowski

2018

Hydrobiologia

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“…To objectively classify the productivity of each lake, we measured the concentration of total phosphorus in the water, which is a good indicator of the trophic status of a lake (Kerekes et al 1990;Staicer et al 1994). It has been found that total phosphorus is a good predictor of lake use by broods of black ducks (Anas rubripes), a species closely related to the mallard (Staicer et al 1994).…”

Section: Study Lakesmentioning

confidence: 99%

“…It has been found that total phosphorus is a good predictor of lake use by broods of black ducks (Anas rubripes), a species closely related to the mallard (Staicer et al 1994). Water samples were taken in winter, when the lakes were frozen and turbulence was therefore effectively reduced.…”

Section: Study Lakesmentioning

confidence: 99%

Individual foraging behaviour indicates resource limitation: an experiment with mallard ducklings

Nummi¹,

Sjöberg²,

Pöysä³

et al. 2000

Can. J. Zool.

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The linkage between individual behaviour and population processes has recently been emphasized. Within this framework we studied the effect of resource limitation on the behaviour of mallard (Anas platyrhynchos) ducklings in boreal lakes. One group of 12 human-imprinted ducklings (4-16 days old) were taken to 11 "rich" lakes, i.e., with a relatively high concentration of total phosphorus in the water, and the other group of 12 ducklings to 11 "poor" lakes to forage for a period of 6 h. During this, a time budget study lasting 5 min was done of each of the 12 ducklings. In the rich lakes, ducklings fed significantly more and moved less than in the poor ones. This difference was particularly striking in above-surface feeding. Variation in foraging performance was associated with change in body mass of the ducklings: the less distance the ducklings moved and the more they fed above water, the more they gained mass. Earlier results had suggested that at least some of the boreal wetlands that lack duck broods year after year (70% of the total in one study) do so because they do not harbour enough food. Hence, it is possible that mallard populations are resource-limited at the brood stage during the breeding season.Resumé : Le lien entre le comportement d'un individu et les processus démographiques a été souligné récemment. Dans cet ordre d'idée, nous avons étudié l'effet d'une ressource limitée sur le comportement de canetons du Canard colvert (Anas platyrhynchos) dans des lacs boréaux. Un groupe de 12 canetons qui ont été empreints aux humains à l'âge de 4-6 jours ont été amenés vers 11 lacs « riches » à concentration totale de phosphate dans l'eau relativement élevée; un autre groupe de 12 canetons ont été transféré dans 11 lacs « pauvres »; les canetons pouvaient chercher leur nourriture pour des périodes de 6 h sur chaque lac. Pendant ce temps, nous avons procédé à l'étude du budget temporel pendant 5 min pour chacun des 12 canetons. Dans les lacs riches, les canetons passaient significativement plus de temps à se nourrir et moins à se déplacer que dans les lacs pauvres. Cette différence était particulièrement évidente dans la recherche de nourriture en surface. La variation de la performance de recherche de nourriture était associée à un changement de masse totale chez les canetons : moins les canetons se déplaçaient, plus ils se nourrissaient en surface et plus leur masse augmentait. Des résultats antérieurs indiquaient qu'au moins certaines des terres humides boréales sont évitées par les colverts lors de la reproduction année après année (70 % de toutes les terres humides dans une étude) et c'est parce qu'elles ne peuvent fournir suffisamment de nourriture. Il es donc possible que les colverts aient à faire face à des ressources limitées pendant la phase de couvaison de la reproduction.[Traduit par la Rédaction] 1895Nummi et al.

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“…To get an objective value of the productivity level of each lake, we measured the concentration of total P in the water, a good indicator of trophic status of lakes (e.g., Kerekes et al 1990, Staicer et al 1994. In a closely related species, the Black Duck (Anas rubripes), total phosphorus has been found to be a good predictor of lake utilization by broods (Staicer et al 1994).…”

Section: Duckling Experimentsmentioning

confidence: 99%

Response of Mallard Ducklings to Variation in Habitat Quality: An Experiment of Food Limitation

Sjöberg¹,

Pöysä²,

Elmberg³

et al. 2000

Ecology

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. Ecological Society of America is collaborating with JSTOR to digitize, preserve and extend access to Ecology.Abstract. Occurrence of Mallard (Anas platyrhynchos) pairs and broods was studied on 86 boreal lakes in two areas in south Finland during 1988-1997 (35 lakes) and 1989-1996 (51 lakes), and field experiments were conducted to determine whether food limitation is an important factor regulating population densities. In general, pairs and broods used and avoided the same lakes, but in both study areas, the proportion of lakes that were unoccupied every year was higher for broods (71% and 69%) than for pairs (26% and 31%). We hypothesized that lakes without breeding Mallards, and especially broods, were too poor to raise young in, and we tested that in field experiments on 22 lakes in boreal Sweden. Based on concentration of total phosphorus in the water, these lakes were divided into two groups: 11 "poor" lakes and 11 "rich" lakes. Mallard ducklings imprinted on humans were used to address brood-stage food limitation by studying mass change. Thirtyone individually marked ducklings were divided into three experimental groups: 12 ducklings were used in poor lakes, 12 ducklings in rich lakes, and 7 ducklings were used as controls receiving no experimental treatment in the field. Each group was studied in 11 daytime trials on 11 different lakes, except the control group which was kept in a pen with free access to food. Ducklings of all groups spent nights together as a big 31-individual group in the same pen and with free access to food. Ducklings foraging on poor lakes gained significantly less body mass than those feeding on rich lakes. At night, when ducklings of both groups had equal and free access to food, ducklings that had been feeding in a poor lake that day gained more mass than those that had been feeding in a rich lake. Overall, -95% of daily mass gain was accounted for by daytime gain in the control group, the corresponding percentage was 35% in the rich-lake experimental group and 11% in the poor-lake experimental group. Thus, we have observational, as well as experimental, evidence to conclude that many boreal lakes are inferior breeding habitat for Mallards, especially during the brood stage. Our results suggest (1) that it is important to recognize at what stage of the yearly reproductive cycle food limitation may occur, (2) that brood stage may be more important than nesting stage for possible population limitation and regulation in breeding Mallards, and (3) that the reason why so many lakes in the boreal region lack breeding Mallards may be food limitation.

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Use of lakes by black duck broods in relation to biological, chemical, and physical features

Cited by 11 publications

References 20 publications

Habitat selection and reproductive success of coot Fulica atra on ponds under different fish size and density conditions

Habitat selection and reproductive success of coot Fulica atra on ponds under different fish size and density conditions

Individual foraging behaviour indicates resource limitation: an experiment with mallard ducklings

Response of Mallard Ducklings to Variation in Habitat Quality: An Experiment of Food Limitation

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