Ovenbird (Seiurus aurocapilla)

Porneluzi, Paul A.; Horn, Marcus A.; Donovan, Therese M.

doi:10.2173/bna.88

Cited by 50 publications

(35 citation statements)

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“…Ovenbirds (see Plate 1) winter throughout Central America, southern Mexico, many Caribbean islands, and southern Florida, and breed in mature forests throughout eastern and northcentral North America (Van Horn and Donovan 1994). Female Ovenbirds build distinctive domeshaped nests on the forest floor, and likely due to high nesting densities and the relative ease of monitoring ground nests, Ovenbird nesting ecology is well studied among songbirds (Van Horn and Donovan 1994).…”

Section: Study Speciesmentioning

confidence: 99%

“…Female Ovenbirds build distinctive domeshaped nests on the forest floor, and likely due to high nesting densities and the relative ease of monitoring ground nests, Ovenbird nesting ecology is well studied among songbirds (Van Horn and Donovan 1994). Ovenbirds often renest after initial nest failure, but successfully fledge only one brood per year.…”

Section: Study Speciesmentioning

confidence: 99%

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Seasonal productivity in a population of migratory songbirds: why nest data are not enough

Streby

Andersen

2011

Ecosphere

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Citation: Streby, H. M., and D. E. Andersen. 2011. Seasonal productivity in a population of migratory songbirds: why nest data are not enough. Ecosphere 2(7):art78. doi:10.1890/ES10-00187.1Abstract. Population models for many animals are limited by a lack of information regarding juvenile survival. In particular, studies of songbird reproductive output typically terminate with the success or failure of nests, despite the fact that adults spend the rest of the reproductive season rearing dependent fledglings. Unless fledgling survival does not vary, or varies consistently with nest productivity, conclusions about population dynamics based solely on nest data may be misleading. During 2007 and 2008, we monitored nests and used radio telemetry to monitor fledgling survival for a population of Ovenbirds (Seiurus aurocapilla) in a managed-forest landscape in north-central Minnesota, USA. In addition to estimating nest and fledgling survival, we modeled growth for population segments partitioned by proximity to edges of non-nesting cover types (regenerating clearcuts). Nest survival was significantly lower, but fledgling survival was significantly higher, in 2007 than in 2008. Despite higher nest productivity in 2008, seasonal productivity (number of young surviving to independence per breeding female) was higher in 2007. Proximity to clearcut edge did not affect nest productivity. However, fledglings from nests near regenerating sapling-dominated clearcuts (7-20 years since harvest) had higher daily survival (0.992 6 0.005) than those from nests in interior forest (0.978 6 0.006), which in turn had higher daily survival than fledglings from nests near shrub-dominated clearcuts ( 6 years since harvest; 0.927 6 0.030) in 2007, with a similar but statistically non-significant trend in 2008. Our population growth models predicted growth rates that differed by 2-39% (x ¼ 25%) from simpler models in which we replaced our estimates of first-year survival with one-half adult annual survival (an estimate commonly used in songbird population growth models). We conclude that nest productivity is an inadequate measure of songbird seasonal productivity, and that results based exclusively on nest data can yield misleading conclusions about population growth and clearcut edge effects. We suggest that direct estimates of juvenile survival could provide more accurate information for the management and conservation of many animal taxa.

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Section: Study Speciesmentioning

confidence: 99%

Section: Study Speciesmentioning

confidence: 99%

Seasonal productivity in a population of migratory songbirds: why nest data are not enough

Streby

Andersen

2011

Ecosphere

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“…Third, forests with heavy Lumbricus invasions are perceived by Ovenbirds to be sub-optimal habitat and are avoided in favor of less impacted areas. In agreement with this hypothesis, Ovenbirds are known to select territories and nest sites with deep leaf litter (Van Horn and Donovan 1994;Mattsson and Niemi 2006) and at least some herbaceous ground cover and shrubs for nest concealment (James 1971;Smith and Shugart 1987), conditions that are characteristic of Lumbricus-free and lightly invaded forests (Hale et al 2006;Holdsworth et al 2007a;Nuzzo et al 2009). All three hypothesized mechanisms could mediate Lumbricus-associated declines; however, further research is required to determine the importance of each.…”

Section: Discussionmentioning

confidence: 89%

“…These variables have been related to density, nesting success, pairing success, and territory size of ground-nesting forest songbirds, and of Ovenbirds in particular (Table 2). Ovenbirds Understory cover Ovenbird density (7) and occupancy probability (8) inversely related to understory cover Ground cover Ovenbird distribution associated with low ground cover (1); relationship varies regionally (9) Litter depth Ovenbird selects territories with thick leaf litter (5,10,11,12,13) Sedge cover Ovenbird nest success inversely related to cover of sedges (13) Distance to forest edge Inverse relationship between distance to edge and pairing success (14), availability of nest sites (10) Lumbricus biomass Ovenbird density lower in invaded versus Lumbricus-free forests and nesting success affected by Lumbricus-related habitat changes (13) a Numbers refer to citations: (1) Smith and Shugart (1987); (2) James (1971); (3) Smith (1977); (4) Collins (1983); (5) Van Horn (1990); (6) Thompson and Capen (1988); (7) Crawford et al (1981); (8) are known to require large tracts of forest for successful reproduction (Van Horn and Donovan 1994), respond to landscape patterns of forest cover at multiple spatial extents (Burke and Nol 1998;Mattsson and Niemi 2006;Smith et al 2008), and experience reduced nest success probability near forest edges, even in relatively un-fragmented forests (Manolis et al 2000). We analyzed land cover using the 2001 National Land Cover Database (Homer et al 2007) which provides data at 30-m resolution.…”

Section: Quantification Of Landscape Patterns Of Forest Covermentioning

confidence: 99%

Invasions of non-native earthworms related to population declines of ground-nesting songbirds across a regional extent in northern hardwood forests of North America

2012

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Non-native invasive earthworms (Lumbricus spp.) substantially change previously earthwormfree hardwood forests of North America by consuming the leaf litter layer, reducing cover and richness of herbaceous plants, and increasing dominance of sedges and grasses. These changes have been associated with reduced density of Ovenbirds (Seiurus aurocapilla) and Hermit Thrushes (Catharus guttatus) in 10-20 ha forest stands, and with reduced Ovenbird nesting success. Whether earthworms reduce songbird populations across a regional extent is unclear. We investigated relationships among Lumbricus, vegetation structure, landscape patterns of forest cover, and density of four ground-nesting songbird species at points scattered across the Chequamegon-Nicolet (Wisconsin) and Chippewa (Minnesota) National Forests, USA. In both national forests, Ovenbird density was significantly lower at invaded points than Lumbricus-free points, but only in sugar maple (Acer saccharum) and sugar maple/basswood (Tilia americana) (hereafter, maple-basswood) woodlands. Density of the Hermit Thrush, Black-and-white Warbler (Mniotilta varia), and Veery (Catharus fuscescens) did not differ in relation to Lumbricus. In maple-basswood forests, Lumbricus biomass was the best predictor of Ovenbird density, with greater biomass associated with reduced density. Vegetation structure and landscape pattern variables received weak support as density predictors. Across all forest types, Ovenbird density was most strongly related to forest cover within 500 and 1,000 m radii. Our results suggest that earthworm invasions may pose a regional threat to Ovenbirds within maple-basswood forests of the U.S. northern Midwest.

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“…Ovenbirds prefer unbroken, closed-canopy hardwood habitats (Van Horn and Donovan 1994). Similarly American redstarts prefer second-growth hardwood habitats (Sherry and Holmes 1997).…”

Section: Discussionmentioning

confidence: 99%

Response of Breeding Songbirds to Vegetation Management in Conifer Plantations Established in Boreal Mixedwoods

ZimmermanGregory

Wayne

WoodcockJohn³

et al. 2011

The Forestry Chronicle

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We examined the response of breeding songbird communities 11 years after four vegetation management treatments were applied. Post-treatment vegetation was characterized by manually interpreting large-scale aerial photography and estimating proportional cover of eight vegetation classes. Songbird abundance was assessed by territory mapping. Using GIS layers, number of registrations and average vegetation proportions were compared among treatments. Ordination of the relative abundance of the 11 most frequent bird species suggested differences between Vision® and untreated areas. These results show that effects of vegetation management on songbirds may be more persistent than previous studies suggest and that monitoring should continue.Key words: ecological inertia, forest vegetation management, singing male avian communities RÉSUMÉ Nous avons étudié les réactions des communautés d' oiseaux chanteurs 11 ans après l'application de quatre traitements de contrôle de la végétation. La végétation après traitement était évaluée par l'interprétation manuelle de photographies à grande échelle et par l' estimation du recouvrement proportionnel de huit classes de végétation. L'abondance des oiseaux chanteurs a été établie par la cartographie du territoire. En utilisant des unités de surface obtenues par un SIG, le nombre d'inscriptions et les proportions moyennes de la végétation ont été comparés entre les traitements. La classification de l'abondance relative des 11 espèces d' oiseaux les plus fréquentes laissent entrevoir des différences entre les superficies traitées au Vision® et les superficies non traitées. Ces résultats démontrent que les effets du contrôle de la végétation sur les oiseaux chanteurs seraient plus persistants que ne l'indiquent les études antérieures et que le suivi devrait être maintenu.Mots clés : inertie écologique, contrôle de la végétation forestière, communautés aviaires de mâles chanteurs

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Ovenbird (Seiurus aurocapilla)

Cited by 50 publications

References 0 publications

Seasonal productivity in a population of migratory songbirds: why nest data are not enough

Seasonal productivity in a population of migratory songbirds: why nest data are not enough

Invasions of non-native earthworms related to population declines of ground-nesting songbirds across a regional extent in northern hardwood forests of North America

Response of Breeding Songbirds to Vegetation Management in Conifer Plantations Established in Boreal Mixedwoods

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