Drainage areas in the Vermillion River basin in eastern South Dakota

Benson, R.D.; Freese, M.D.; Amundson, Frank D.

doi:10.3133/ofr88720

Cited by 2 publications

(2 citation statements)

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“…We surveyed birds during the breeding season (late May-early July) in 2009 and 2010 as described in detail by Benson (2011) and Munes et al (2015). We chose 79 sites stratified by age class and species composition category identified during land-cover mapping (Dixon et al 2012).…”

Section: Bird Surveysmentioning

confidence: 99%

“…Control of invasive woody species may have positive or negative effects on forest birds (Bateman and Paxton 2010, Sogge et al 2013, Valente et al 2019 depending on the quality of nesting or foraging habitat provided by these species relative to native tree species. Indeed, there is some evidence that shrub-nesting bird species (e.g., Bell's Vireo Vireo bellii and Yellow Warbler Setophaga petechia) occur in similar densities in Russian olive and in young native cottonwood-willow stands in Missouri River riparian forests, with Russian olive potentially retaining the structure needed by these species for a longer period of time than the faster growing cottonwood stands (Benson 2011, Munes 2014. Changes in bird distributions in aging riparian forests may be sensitive to the effects of management on invasive woody plant species and the effects of these species on bird abundance and diversity.…”

Section: Introductionmentioning

confidence: 99%

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Vegetation associations of riparian birds in successional woodlands along the regulated Missouri River

Merkord,

Rastandeh,

Benson

et al. 2023

ACE

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River regulation by dams on the Missouri River has modified riparian forest successional patterns, with decreases in early and increases in later seral stages and higher occurrence of invasive tree species, including Russian olive (Elaeagnus angustifolia) and eastern red cedar (Juniperus virginiana). The effects of these altered successional trajectories on bird biodiversity are difficult to quantify because of limited data on bird-habitat associations. We surveyed riparian shrubland and forest bird species across a gradient of riparian forest ages along two segments of the regulated Missouri River in South Dakota and Nebraska, USA and explored relationships between bird abundance and patch-and landscape-scale vegetation characteristics for 46 bird species. Predicted abundances at sites assigned to five vegetation classes, estimated from Bayesian binomial N-mixture models, identified 11 early successional bird species and 19 forest bird species. Abundances of early successional bird species were similar at cottonwood-willow sites and Russian olive sites and were positively correlated with cottonwood (Populus deltoides) importance values for only one species, Willow Flycatcher (Empidonax traillii). Abundances of forest bird species were similar at sites in the three forest vegetation classes, although Ovenbird (Seiurus aurocapilla) and Baltimore Oriole (Icterus galbula) showed some affinity for mid-or late successional cottonwood sites over late-successional non-cottonwood sites. Abundances of three forest species, including Baltimore Oriole, were positively correlated with cottonwood or negatively correlated with eastern red cedar importance values. Fifteen species were positively correlated with shrubland land cover, whereas 21 species were positively correlated with forest land cover. For most bird species, correlations were strongest with land cover within a 200-m buffer compared to 400 or 1200 m. These data suggest that the trends in riparian forest change due to river regulation along the middle Missouri River may produce a mix of positive and negative effects on riparian bird species. While management plans to promote regeneration of early successional cottonwood-willow stands are likely to benefit conservation of early successional bird species, Russian olive may also provide suitable bird habitat for the majority those species. Associations végétales des oiseaux riverains dans les peuplements successionnels le long de la rivière Missouri

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Section: Bird Surveysmentioning

confidence: 99%