Variability in Nest Survival Rates and Implications to Nesting Studies

Klett, A. T.; Johnson, Douglas H.

doi:10.2307/4086023

Cited by 167 publications

(114 citation statements)

References 12 publications

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“…Other studies have reported seasonal variation in nest success in ducks (Klett and Johnson 1982, Hepp and Kennamer 1993, Emery et al 2005, Devries et al 2008, which may be related to age or condition of the nesting hen (Hohman 1986) or changes in predator behavior or nesting cover throughout the season. Such changes might also be influenced by nest and nest-site characteristics that influence predator encounter rates (Gerell 1970, Barding andNelson 2008).…”

Section: Discussionmentioning

confidence: 99%

“…I included a seasonal trend variable to explain temporal variation in the nesting season, with earlier nests predicted to be more successful than later nests. I also included a model with nest age to allow nest survival to vary during laying and incubation (Klett and Johnson 1982, Stephens et al 2005, Grant and Shaffer 2012. I included a model with annual variability, where year was modeled as a categorical variable.…”

Section: Interactionsmentioning

confidence: 99%

“…Pescador and Peris (2007) reported that depredation of artificial nests was lower near high traffic roads, and higher near low traffic roads. Klett and Johnson (1982) reported higher nest success in Mallards (Anas platyrhynchos) near an interstate highway, which they attributed to traffic repelling predators, but Cowardin et al (1985) reported low nest success in Mallards near gravel road rights-of-way. -Paved roads increase predation more than gravel roads because they attract scavengers to roadkill and garbage and/or provide a travel corridor.…”

mentioning

confidence: 99%

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Nest and brood survival of Ring-necked Ducks in relation to anthropogenic development and wetland attributes

Roy¹

2018

ACE

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ABSTRACT. The boreal and hemiboreal forests are facing increasing anthropogenic development in areas that have traditionally been remote and inaccessible. Although these forests are recognized as important to breeding waterfowl, breeding season vital rates and the influence of anthropogenic development on these rates remain largely unexplored. I estimated nest and brood survival of Ring-necked Ducks (Aythya collaris) in the hemiboreal forest of Minnesota. I located 115 nests on 43 wetlands, radio-tagged 65 nesting hens, and monitored 32 broods. I considered the influence of distance to and density of buildings and roads, and road-surface type, as well as wetland characteristics and other variables hypothesized to influence waterfowl vital rates. The best-supported nest survival models included covariates for distance from the nest to nearest road and road-surface type. Nest survival declined with increasing distance from roads and was higher for nests near paved roads, at least when the distance was < 400 m. However, an interaction term in the topranked model suggested the effect of road type varied as a function of distance from nest. The model-averaged estimate of 35-day nest survival, based on the top two models was 0.278 (SE = 0.048). Brood survival increased with brood age and open water area, and decreased with nesting habitat area and distance from open water to nearest road. Cumulative brood survival to 30 days was 0.263 (SE = 0.035). These findings indicate that roads may influence both nest and brood survival. Furthermore, higher brood survival at wetlands with less nesting habitat area and more open water area may explain why hens move broods. Conservation managers should consider how habitat needs change throughout the breeding season to adequately address the needs of Ring-necked Ducks. Further study is needed to understand how anthropogenic development can be incorporated into conservation planning. Survie des nids et des couvées de Fuligules à collier en relation avec le développement d'origine anthropique et les caractéristiques des milieux humidesRÉSUMÉ. Les forêts boréales et hémi-boréales subissent une augmentation du développement d'origine anthropique dans des régions qui étaient autrefois éloignées et inaccessibles. Bien qu'on sache que ces forêts sont importantes pour la nidification de la sauvagine, les paramètres vitaux en saison de nidification et l'influence du développement d'origine anthropique sur ce groupe d'oiseaux demeurent grandement inexplorés. Les taux de survie de nids et de couvées de Fuligules à collier (Aythya collaris) ont été estimés dans la forêt hémi-boréale du Minnesota. Cent-quinze nids situés dans 43 milieux humides ont été localisés, 56 femelles nicheuses ont été équipées d'émetteurs radios et 32 couvées ont été suivies. L'effet de la distance et de la densité des bâtiments et des routes ont été examinés, tout comme le type de revêtement des routes, de même que les caractéristiques des milieux humides et d'autres variables pouvant influer les taux de survie de la s...

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Section: Discussionmentioning

confidence: 99%

Section: Interactionsmentioning

confidence: 99%

mentioning

confidence: 99%

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Nest and brood survival of Ring-necked Ducks in relation to anthropogenic development and wetland attributes

Roy¹

2018

ACE

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“…The South-east Region was the only region that had sufficient data for temporal analysis of DSRs (i.e. ≥50 nest records; Hensler and Nichols 1981;Klett and Johnson 1982;Crick and Baillie 1996).…”

Section: Nest Record Schemementioning

confidence: 99%

“…Fates of nests were considered unknown where nesting failure during the incubation stage was not reported. 'Mayfield hatching success' was based on a daily survival rate (DSR), a method which avoids a bias whereby unsuccessful nests are often not sampled (Mayfield 1961(Mayfield , 1975Klett and Johnson 1982). We limited our use of DSRs to incubation only, to avoid violating assumptions of constant survivorship (see Jehle et al 2004).…”

Section: Nest Record Schemementioning

confidence: 99%

Spatial and temporal variation in the breeding of Masked Lapwings (Vanellus miles) in Australia

Chambers

Gibbs

Weston

et al. 2008

Emu - Austral Ornithology

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Abstract. Spatial and temporal variation in the breeding of Masked Lapwings (Vanellus miles) in Australia were examined using data from Birds Australia's Nest Record Scheme (NRS; 1957, the Atlas of Australian Birds (1998Birds ( -2006, and climatic data . Breeding in north-western Australia was concentrated in summer, while in other regions the peak of breeding occurred during spring. Breeding success varied between regions and years but was generally highest in Tasmania. Clutch-size (mean 3.57 eggs ± 0.033 s.e., n = 549 clutches) did not vary regionally or temporally. In the northeast, breeding became earlier over time (~1.9 days per year, NRS), while in the south-east, breeding became later (~0.9 days per year); in other regions temporal trends were not evident. Only Tasmania showed a significant temporal change in breeding success (decrease of ~1.5% per year). All regions experienced warming climates, and annual rainfall increased in north-western regions and decreased in eastern regions. There were weak or no relationships between the amount or success of breeding, clutch-size and the climatic variables considered (with the possible exception of Tasmania), suggesting either that data limitations precluded us from detecting subtle effects or that Masked Lapwings have been little influenced or are resilient to changes in climate over most of their range.

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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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Variability in Nest Survival Rates and Implications to Nesting Studies

Cited by 167 publications

References 12 publications

Nest and brood survival of Ring-necked Ducks in relation to anthropogenic development and wetland attributes

Nest and brood survival of Ring-necked Ducks in relation to anthropogenic development and wetland attributes

Spatial and temporal variation in the breeding of Masked Lapwings (Vanellus miles) in Australia

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

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