Birds that Eat Nonnative Buckthorn Fruit (<i>Rhamnus cathartica</i>and<i>Frangula alnus</i>, Rhamnaceae) in Eastern North America

Craves, Julie A

doi:10.3375/043.035.0208

Cited by 7 publications

(6 citation statements)

References 29 publications

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“…Of the 15 species we found positively associated with early successional cottonwood-willow or Russian olive vegetation at the patch or landscape scale, 4 demonstrated significant regional (Central Region of the U.S. Fish and Wildlife Service's Breeding Bird Survey) population declines in both 1966-2015-2015(Sauer et al 2017). These species included Eastern Kingbird, Brown Thrasher, Common Yellowthroat, and Field Sparrow.…”

Section: Discussionmentioning

confidence: 87%

“…monilifera) and support among the highest levels of bird diversity of any habitat type in the region (Finch and Ruggiero 1993, Rumble and Gobeille 2004, Gentry et al 2006. On the Missouri River, decades of river management by upstream dams have greatly affected native floodplain forests and the processes that sustain them (Johnson 1992, 2015, 2015. These effects include a reduction in flooding, increased channel incision that isolates the floodplain from the river, and declines in the geomorphic dynamism necessary to create open sediment bars for colonization by riparian pioneer species such as cottonwood and willow (Salix spp.).…”

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: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

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

Merkord,

Rastandeh,

Benson

et al. 2023

ACE

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“…Chokeberries, black huckleberry, and glossy buckthorn, however, are of particular concern due to contribution of fruit contaminants to harvested blueberries (Jensen and Yarborough, 2004;Ismail, 1979, 1980). Glossy buckthorn in particular should be of high priority due to potential dispersal of seeds by birds (Craves, 2015) and increasing prevalence of this invasive species throughout Nova Scotia (Belliveau, 2012).…”

Section: Less Common But Potentially Problematic Weeds Found Within Qmentioning

confidence: 99%

Weed Survey of Nova Scotia Lowbush Blueberry (Vaccinium AngustifoliumAit.) Fields

Lyu

McLean

McKenzie‐Gopsill

et al. 2021

International Journal of Fruit Science

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Weed surveys provide the basis for weed management research in lowbush blueberry, but have not been conducted in Nova Scotia since 2001. Documented declines in herbicide efficacy, loss and/or acquisition of herbicide active ingredients, confirmation of herbicide-resistant weed biotypes, and documented vectoring of weed seeds by machinery necessitate a new weed survey. A total of 165 bearing year lowbush blueberry fields were surveyed from 2017 to 2019, within which approximately 211 weed species were identified. Most weed species were herbaceous perennial forbs (89 species) and woody perennials (50 species), followed by annual broadleaf (24 species) and perennial grass weeds (20 species). The remaining flora consisted of a range of ferns, biennials, sedges and rushes, and orchids. The most common weed species were red sorrel (Rumex acetosella L.), poverty oatgrass (Danthonia spicata L. Beauv.), haircap moss (Polytrichum commune Hedw.), hair fescue (Festuca filiformis Pourr.), narrow-leaved goldenrod (Euthamia graminifolia (L) Nutt.), tickle grass (Agrostis hyemalis (Walter) BSP.), woolly panicum (Panicum lanugosum Ell.), cow wheat (Melampyrum lineare Desr.), bunchberry (Cornus canadensis L.), and yellow hawkweed (Hieracium caespitosum Dumort). Increased occurrence of these weed species is likely the result of documented or observed reductions in hexazinone and terbacil efficacy, confirmation of triazine-resistant biotypes, and common occurrence of seeds of these weed species on machinery. Low crop prices have also caused reduced pronamide use, contributing to increased occurrence of hair fescue. Results are guiding future research priorities for weed management in lowbush blueberry.

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“…Possible mechanisms for F. alnus invasion are release from disease and herbivory pressure [80], avian dispersal of attractive fleshy fruits [81], and high tolerance for varying soil and hydrologic conditions [82,83]. Bird species exclusively observed in the exotic shrubs such as Dumetalla carolinensis (Gray catbird) and Cyanocitta cristata (Blue jay) may be vectors for seed distribution [81]. Additionally, this study confirms previous findings that F. alnus develops a dense understory of seedlings allowing for high recruitment of propagules [83].…”

Section: Mechanisms Of Trajectory Shiftsmentioning

confidence: 99%

“…The most common upland bird species, with the exception of Quiscalus quiscula (Common grackle), were found primarily on Alnus and Frangula shrubs on the wetland edge. F. alnus fruits are commonly foraged by the common upland species including Mimus polyglottos (Northern mockingbird), Dumetella carolinensis, and Zomotrichia albicollis (White-throated sparrow) [81]. Additionally, certain upland bird species were predominantly found in wetland habitat such as Melospiza melodia (Song sparrow) in cattail marsh.…”

Section: Avian Community As a Indicator Of Habitat Qualitymentioning

confidence: 99%

Successional dynamics of a 35 year old freshwater mitigation wetland in southeastern New Hampshire

et al. 2021

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The long-term ecological success of compensatory freshwater wetland projects has come into question based on follow-up monitoring studies over the past few decades. Given that wetland restoration may require many years to decades to converge to desired outcomes, long-term monitoring of successional patterns may increase our ability to fully evaluate success of wetland mitigation projects or guide adaptive management when needed. In Portsmouth, New Hampshire a 4 ha wetland was constructed in an abandoned gravel quarry as off-site compensatory mitigation for impacts to a scrub-shrub swamp associated with property expansion. Building upon prior evaluations from 1992 and 2002, we conducted a floral survey in 2020 to compare results with prior surveys to document vegetation successional trends over time. In addition, we monitored the avian community throughout the growing season as a measure of habitat quality. The plant community mirrored documented successional trends of freshwater wetland restoration projects as native hydrophytes dominated species composition. Plant species composition stabilized as the rate of turnover, the measurement of succession, declined by nearly half after 17 years. Researchers should consider long-term monitoring of specific sites to better understand successional patterns of created wetlands as we documented long time frames required for the development of scrub-shrub swamps, red maple swamps, and sedge meadows. High species richness was attributed to beaver activity, topographic heterogeneity from Carex stricta tussocks, and the seed bank from the application of peat from the original wetland. Habitat heterogeneity of open water, herbaceous cover, and woody vegetation supports a diverse avian community including 11 wetland dependent species. Although the mitigation project has not created the full area of lost scrub-shrub swamp after 35 years, it has developed a structurally complex habitat and diverse avian community that effectively provides the functions and values of the impacted system.

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Birds that Eat Nonnative Buckthorn Fruit (Rhamnus catharticaandFrangula alnus, Rhamnaceae) in Eastern North America

Cited by 7 publications

References 29 publications

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

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

Weed Survey of Nova Scotia Lowbush Blueberry (Vaccinium AngustifoliumAit.) Fields

Successional dynamics of a 35 year old freshwater mitigation wetland in southeastern New Hampshire

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