Ducks, Geese and Swans of North America

Perry, Matthew C.; Bellrose, Frank C.

doi:10.2307/3800623

Cited by 46 publications

(89 citation statements)

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“…Bean Geese staging and winteripg in other parts of Europe show food preferences similar to those observed in SW Skane (Leisler 1969, Schroder 1969, Sterbetz 1971, Gerdes et al 1978, Mooij 1979, 1984, Van Impe 1980, Gerdes and Reepmeyer 1983. For the Canada Goose comparable data from Europe are lacking' but in extensive studies in North America the Canada Geese fed on a variety of crops (e. g. Hanson 1965, Bell & Klimstra 1970, Bellrose 1976, Reed et al 1977. The situations in Europe and North America are however not comparable.…”

Section: Choice Offeeding Areasmentioning

confidence: 99%

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Selection and exploitation of feeding areas by staging and wintering geese in southmost Sweden

Nilsson

Persson

1991

Ornis Svec

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Bean Geese and Canada Geese preferred high-energy food (spilled grain, sugar-beet spill, potatoes and carrots) in autumn. When harvested fields were ploughed or when the ground was frozen, the geese grazed winter cereals. During periods with deep snow most of the Canada Geese utilized rape sticking up through the snow. In spring, both species fed on sprouting grass on permanent pastures. Such pastures were also heavily utilized by Bean Geese during mild periods in late winter. White-fronted Geese primarily used winter cereals and grassland. Marked changes in agricultural practices have occurred in southern Sweden contemporarily with the population increase in the Bean Goose. Mechanical harvesting has provided abundant spill of sugar beet, potatoes and carrots, serving as a high-rated food source for geese in autumn. Distance to the roost was also an important factor influencing field choice. Flying distances of up to 14 km were noted both for Bean and Canada Geese, although mean distances were much shorter. SW Skåne could probably support larger staging populations. During the last 10 years only a small proportion of suitable areas (36% of 1 X 1 km squares within flying distance of 14 km of a roost) was used by feeding Bean Geese.

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Section: Choice Offeeding Areasmentioning

confidence: 99%

“…The situations in Europe and North America are however not comparable. In the latter region crops are grown especially for geese (Bellrose 1976, Raveling 1978.…”

Section: Choice Offeeding Areasmentioning

confidence: 99%

Selection and exploitation of feeding areas by staging and wintering geese in southmost Sweden

Nilsson

Persson

1991

Ornis Svec

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“…Recent genetic analyses verify separation of the West‐Gulf Coast and Florida populations (Lavretsky et al, 2014; Weng, 2006). The Mottled Duck is considered one of two non‐migratory dabbling ducks in North America (McCracken et al, 2001), and the bird generally makes daily or seasonal moves of various extent as opposed to being truly migratory (Bellrose, 1980; Dingle, 1996).…”

Section: Introductionmentioning

confidence: 99%

“…The Mottled Duck is part of an Anatid complex which also includes the American Black Duck (Anas rubripes), Mallard (A. platyrhynchos) and the Mexican Duck (A. diazi) in North America (Bellrose, 1980;Lavretsky et al, 2014;McCracken et al, 2001). The Mottled Ducks' historic range includes peninsular Florida and coastal areas southwestward from Mobile, Alabama to Veracruz, Mexico (Bellrose, 1980;Bielefeld et al, 2010;Stutzenbaker, 1988). These geographical demarcations separate Mottled Ducks into contemporarily recognized West-Gulf Coast (A. f. maculosa) and Florida (A. f. fulvigula) populations (Bielefeld et al, 2010;Lavretsky et al, 2021;McCracken et al, 2001) (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

“…diazi ) in North America (Bellrose, 1980; Lavretsky et al, 2014; McCracken et al, 2001). The Mottled Ducks’ historic range includes peninsular Florida and coastal areas southwestward from Mobile, Alabama to Veracruz, Mexico (Bellrose, 1980; Bielefeld et al, 2010; Stutzenbaker, 1988). These geographical demarcations separate Mottled Ducks into contemporarily recognized West‐Gulf Coast ( A .…”

Section: Introductionmentioning

confidence: 99%

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Mottled Duck introductions to South Carolina: The ugly, the bad, and the good?

Davis

2022

Ecology and Evolution

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Translocations or other movements of wildlife sometimes accomplish their intended objectives, but unforeseen consequences may arise and disrupt locally adapted ecological communities, restructure or dilute genetic integrity of populations or subspecies of the moved organism, and otherwise negatively influences a species’ long‐term fitness. Two historical populations of Mottled Ducks ( Anas fulvigula ) exist and are endemic to (1) Mexico and the West‐Gulf Coast ( A . f . maculosa ) regions of the United States and (2) Florida ( A . f . fulvigula ). From 1975 to 1983, 1285 Mottled Ducks from Florida, Louisiana, and Texas were released to coastal South Carolina, primarily to ultimately establish a legally harvestable population. This movement stirred mixed reactions amid the conservation community. Contemporary information suggests an increasing Mottled Duck population in South Carolina and possibly dispersing into Georgia. Herein, I objectively discuss the potential consequences of this new population per the birds’ evolution, ecology, and management. Ultimately, I suggest that this translocation is a long‐term benefit to the species.

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Nest success of ground‐nesting ducks in the wetlands of Great Salt Lake, Utah

Bell

Conover

2023

Ecology and Evolution

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The number of ground‐nesting ducks in the wetlands of Great Salt Lake, Utah has drastically decreased in the past few decades. A potential cause for this decline is the increase of predator species and their abundances, which has caused most nests to fail from depredation. Ground‐nesting ducks may be able to reduce the risk of nest depredation by selecting nest sites where local physical structures or vegetation provides olfactory or visual concealment. To test this, we used logistic exposure models to look at the effect of nest‐site characteristics on daily survival rates (DSRs) of nests during 2019, 2020, and 2021 in the wetlands of Great Salt Lake, Utah. We found 825 duck nests including 458 cinnamon teal (Spatula cyanoptera), 166 mallards (Anas platyrhynchos), and 201 gadwalls (Mareca strepera). DSRs were 0.9714 ± 0.0019 in 2019, 0.9282 ± 0.0049 in 2020, and 0.8274 ± 0.0185 in 2021. Survival rates varied among years but not among duck species. Striped skunks (Mephitis mephitis) and raccoons (Procyon lotor) were responsible for 85% of depredated nests. Nests located near other duck nests had higher DSRs than more dispersed nests. Neither visual nor olfactory characteristics correlated with increased DSRs based on AICc analysis. Nests located inside a mixed nesting colony of American avocets (Recurvirostra americana), black‐necked stilts (Himantopus mexicanus), and common terns (Sterna hirundo) had higher DSRs than duck nests outside the colony. Increased nesting densities of ducks and other colonial waterbirds had the greatest impact on nesting success. Increased nest density may be encouraged through early spring green‐up.

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Ducks, Geese and Swans of North America

Cited by 46 publications

References 0 publications

Selection and exploitation of feeding areas by staging and wintering geese in southmost Sweden

Selection and exploitation of feeding areas by staging and wintering geese in southmost Sweden

Mottled Duck introductions to South Carolina: The ugly, the bad, and the good?

Nest success of ground‐nesting ducks in the wetlands of Great Salt Lake, Utah

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