Patterns of Artificial Nest Depredation in a Large Floodplain Forest

Knutson, Melinda G.; Gutreuter, Steven J.; Klaas, Erwin E.

doi:10.2307/3803255

Cited by 13 publications

(8 citation statements)

References 38 publications

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“…Methods have been developed to minimize the potential biases of using artificial nests. These methods include weathering (Rangen et al 2000), adding natural materials to artificial nests (Wilcove 1985), and rigorous attempts to reduce human odors associated with artificial nests (Bergan et al 1997, Donovan et al 1997, Lewis and Montevecchi 1999, DeGraaf et al 1999, Knutson et al 2000, Rangen et al 2000, 2001). In our study, weathering nests did not affect predation risk.…”

Section: Discussionmentioning

confidence: 99%

“…However, to understand how avian communities change with urbanization it is necessary to examine the underlying variation in demographic patterns. Nest predation causes most reproductive failure in birds (Ricklefs 1969, Hatchwell et al 1999, Buler and Hamilton 2000, Knutson et al 2000) and has thus become a focus of many studies examining the impacts of habitat alterations on avian demography, especially that of habitat fragmentation and edge effects (for reviews see Paton 1994 and Chalfoun et al 2002). Predator communities may differ between natural and urbanizing habitats, but relative patterns of increasing and decreasing predator abundance may be scale‐dependent.…”

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confidence: 99%

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Predation rate on artificial nests increases with human housing density in suburban habitats

Thorington¹,

Bowman²

2003

Ecography

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Predation causes most nest failure in birds. Predator communities are likely to vary across a gradient of increasing urbanization, so nest predation also is likely to vary across this gradient. Although predation is thought to decline with increasing urbanization, relatively little is known about variation in predation pressure within strata along an urban gradient and how factors known to affect nest success, such as nest location, interact with urban variables, such as human housing density. Native habitats are frequently fragmented and isolated by suburban residential development, thus we quantified predation rates on artificial nests located in natural oak scrub patches within a suburban matrix in south‐central Florida. We examined patterns of predation based on nest location relative to habitat edges, artificial nest weathering treatment, nest shrub height, and human housing density. Over two 18‐d trials, we placed a total of 240 nests, each containing a single quail egg and a clay sham, along three roadside transects. Nest predation was not influenced by proximity to edge, nest weathering, or trial date, but was highest at high housing density and lowest at low housing density. The proportion of quail eggs removed from nests increased with human housing density. Birds were the most frequent predators of artificial nests, but the relative frequency of predation by birds or mammals did not differ relative to any of our treatments. Higher rates of nest predation with increasing human housing density within suburban habitats may reflect changes in habitat structure and composition that increase the vulnerability of nests to predation or changes in the composition of the predator community. Our results modify the conclusions of previous studies by suggesting that at scales smaller than the entire urban gradient, nest predation may increase with human housing density, one common measure of urbanization.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Predation rate on artificial nests increases with human housing density in suburban habitats

Thorington¹,

Bowman²

2003

Ecography

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Section: Multiscale Modelmentioning

confidence: 99%

“…The effects of habitat patch characteristics on nest success, especially distance to edge, vary among species, habitats and regions (reviewed in Paton 1994, Andrén 1995, Lahti 2001, Batary & Baldi 2004; however, the general conclusion to be drawn from these studies is that there is support for edge effects in some landscape or biogeographical contexts. Some studies have found a relationship between nest success and riparian corridor width/patch size (Chapa 1996, Vander Haegan & DeGraaf 1996, Knutson et al 2000, but see Tewksbury et al 1998 and between nest success and edge type (Chapa 1996, Suarez et al 1997, Saracco & Collazo 1999, but see Tewksbury et al 1998. Peak et al (2004) and Knutson et al (2004) did not find strong effects of riparian forest corridor width or patch area, and suggest that patch or width effects will not be detectable in highly fragmented landscapes because nest predation rates are high throughout habitat patches in these landscapes.…”

Section: Habitat and Nest-site Factorsmentioning

confidence: 99%

Factors affecting nest predation on forest songbirds in North America

Thompson¹

2007

Ibis

164

136

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Nest predation is an important factor in the ecology of passerines and can be a large source of mortality for birds. I provide an overview of factors affecting nest predation of passerines in North America with the goal that it may provide some insight into the ecology and management of woodland birds in the United Kingdom. Although several factors influence productivity, nest success is perhaps the most widely measured demographic characteristic of open‐cup‐nesting birds, and nest predation is usually the largest cause of nest failure. The identity of predator species, and how their importance varies with habitat and landscape factors, must be known for managers and scientists to design effective conservation plans and place research on nest predation in the appropriate context. Recent studies using video surveillance have made significant contributions to our understanding of the relative importance of different predator taxa in North America. Spatial and temporal variation in nest predation can be better understood when landscapes are placed in a biogeographical context and local habitat and nest‐site effects are placed in a landscape context. Low productivity resulting from high nest predation is one of several potential causes of bird population declines in North America and the UK. Although the ‘forest fragmentation paradigm’ from the eastern US may not apply directly to the UK, thinking about avian demographics from a multiscale perspective, and consideration of factors affecting nest predation with knowledge of the dominant predator species, may provide insight into population declines.

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“…Both the upland forests and floodplain forests on our study sites have had several decades, and likely more than a century, to develop (Cahayla‐Wynne & Glenn‐Lewin ; Guyon et al ). Our study area contains many, relatively large (>200 ha) stands of mature, closed‐canopy forest (Knutson et al ). Gaps in otherwise closed‐canopy forests on our study sites are created by backwater sloughs, roads, railroads, and creeks.…”

Section: Methodsmentioning

confidence: 99%

Archaic and contemporary topographic diversification of Upper Mississippi River forests

King

Stravers²,

Maas

et al. 2018

Restoration Ecology

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Topographic diversity is an important component of environmental heterogeneity. Topographic diversity within the Upper Mississippi River floodplain has been degraded because of modifications for navigation improvement. Efforts aimed at restoring topographic diversity in the Upper Mississippi River floodplain have been extensive but have not focused on reversing the effects of forest loss and degradation. We investigated habitat features associated with Cerulean Warbler (Setophaga cerulea) locations both within and outside of river floodplains and hypothesized this species would select topographically diverse habitats. Both topographic diversity and the distance to the upland forest/floodplain forest interface were useful predictors of Cerulean Warbler presence. We conclude that incorporation of topographic diversity into floodplain forest restoration planning would likely benefit Cerulean Warblers and the other species with similar habitat requirements. Incorporating topographic diversity into floodplain forest conservation planning will be challenging on major rivers that serve multiple purposes.

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Patterns of Artificial Nest Depredation in a Large Floodplain Forest

Cited by 13 publications

References 38 publications

Predation rate on artificial nests increases with human housing density in suburban habitats

Predation rate on artificial nests increases with human housing density in suburban habitats

Factors affecting nest predation on forest songbirds in North America

Archaic and contemporary topographic diversification of Upper Mississippi River forests

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