Habitat Use by Mallard Broods in South Central North Dakota

Talent, Larry G.; Krapu, Gary L.; Jarvis, Robert L.

doi:10.2307/3808553

Cited by 82 publications

(61 citation statements)

References 11 publications

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“…Talent et al (1982) found the average size of the cumulative home range ofa Mallard brood to be 11 ha, similar to that in this study of nearly 13 ha. This similarity is interesting considering the radically different types of hab.tat in the two studies.…”

Section: Discussionsupporting

confidence: 73%

“…Haland (1983) found that interactions between mallard broods were infrequent, however, and brood spacing was brought about by mutual avoidance. Brood density has been shown to increase in response to an increase in food supplies (Godin & Joyner 1981, Talent et al 1982 and is higher on lakes with a large amount of shoreline in relation to water area (Patterson 1976, Mack & Flake 1980, since shoreline is the main feeding habitat of Mallard ducklings (Pehrsson 1979). In the United States ponds experimentally sprayed with a pesticide used to control spruce budworm Choristoneura fumiferana produced significantly fewer invertebrates, which had dramatic effects on the survival of Black Duck Anus rubrzpes and hlallard ducklings (Hunter et ul.…”

Section: Discussionmentioning

confidence: 99%

“…This similarity is interesting considering the radically different types of hab.tat in the two studies. Talent et al (1982) studied brood home ranges in prairie habitat containing mainly temporary and seasonal wetlands, in contrast to the relatively immature flooded gravel quarry in this study.…”

Section: Discussionmentioning

confidence: 99%

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Survival of Mallard ducklings Anas platyrhynchos and competition with fish for invertebrates on a flooded gravel quarry in England

Hill¹,

Wright

Street

1987

Ibis

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The survival of Mallard Anas platyrhynchos ducklings was studied on a complex of flooded gravel quarries in England and their weight changes in response to invertebrate predation by fish were studied by experiment. The majority of duckling loss occurred during the first 12 days after hatching but those feeding on the river where fish were scarce survived better than those feeding on lakes where fish density was high. Duckling mortality was higher in broods with large home ranges. In the experimental trials an increase in fish density was related to a reduction in both the number of emerging invertebrates and the biomass of aquatic macrophytes. Ducklings feeding in these ponds travelled further and gained less weight than on the pond with a low fish density where the number of emerging invertebrates was higher.

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Section: Discussionsupporting

confidence: 73%

Section: Discussionmentioning

confidence: 99%

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Survival of Mallard ducklings Anas platyrhynchos and competition with fish for invertebrates on a flooded gravel quarry in England

Hill¹,

Wright

Street

1987

Ibis

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“…The number of ducklings per brood was determined immediately after all overland moves, when feasible, and regularly thereafter when disturbing the brood could be avoided. However, because Mallard broods prefer dense cover in wetlands (Talent et al 1982) determination of brood size was difficult, especially after ducklings were about one week old. Thus, we concentrated our efforts on determining when and where loss of entire broods occurred.…”

Section: Study Area and Methodsmentioning

confidence: 99%

“…Only 10% of the wetland basins on the Medina Study Area contained water on 1 May; their use by radio-marked broods was restricted to semipermanent wetlands (Talent et al 1982). To study the effects of predation on entire broods, we released nine radio-equipped pen-reared hens with broods in semipermanent wetlands where wild broods had been observed.…”

Section: Predationmentioning

confidence: 99%