Comparisons of Bird, Aquatic Macroinvertebrate, and Plant Communities Among Dredged Ponds and Natural Wetland Habitats at Long Point, Lake Erie, Ontario

Schummer, Michael L.; Palframan, Jason Timothy; McNaughton, Emily; Barney, Ted; Petrie, Scott A.

doi:10.1007/s13157-012-0328-2

Cited by 28 publications

(25 citation statements)

References 26 publications

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“…and P. australis) with birds in open-water ponds (Schummer et al, 2012). This study (Anas discors), and terns (Laridae).…”

Section: Discussionmentioning

confidence: 94%

“…Supporting this hypothesis, Gagnon Lupien et al (2015) attribute their finding that P. australis had no severe effect on bird use in southwestern Quebec marshes to the early stage of invasion in their study system. As P. australis expands, replacing meadow marsh and cattail marsh, it smooths and elevates substrate, filling in small holes and open-water pools through litter accumulation (Weinstein and Balletro, 1999;Windham and Lathrop, 1999), reducing floral diversity, and creating dense stands of stiff stems (Ailstock et al, 2001;Schummer et al, 2012;Windham, 2001). These changes alter marsh habitat making it less heterogeneous.…”

Section: Discussionmentioning

confidence: 99%

“…In another Long Point study, researchers compared bird abundance and richness within natural ponds, dredged ponds, and mixed cattail-P. australis emergent vegetation and found that ponds supported greater total species richness and marshnesting species richness than cattail-P. australis habitat (Schummer et al, 2012). These researchers agreed with Meyer et al (2010), and concluded that dredging ponds led to an increase in bird richness and abundance due to the creation of more edge habitat (Schummer et al, 2012).…”

Section: Effects Of Invasion 191 Effects On Birdsmentioning

confidence: 90%

“…Indeed, multiple studies have examined the effects of P. australis invasion on the abundance and richness of birds (Benoit and Askins, 1999;Gagnon Lupien et al, 2015;Meyer et al, 2010;Schummer et al, 2012;Wells et al, 2008;Whyte et al, 2015), but with conflicting results. Some authors show substantial changes in bird abundance (Schummer et al, 2012;Whyte et al, 2015) whereas others find little effect on bird use (Gagnon Lupien et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Some authors show substantial changes in bird abundance (Schummer et al, 2012;Whyte et al, 2015) whereas others find little effect on bird use (Gagnon Lupien et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Long-term effects of a Phragmites australis invasion on birds in a Lake Erie coastal marsh

Robichaud

Rooney

2017

Journal of Great Lakes Research

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“…and P. australis) with birds in open-water ponds (Schummer et al, 2012). This study (Anas discors), and terns (Laridae).…”

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Effects Of Invasion 191 Effects On Birdsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

“…Some authors show substantial changes in bird abundance (Schummer et al, 2012;Whyte et al, 2015) whereas others find little effect on bird use (Gagnon Lupien et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Long-term effects of a Phragmites australis invasion on birds in a Lake Erie coastal marsh

Robichaud

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2017

Journal of Great Lakes Research

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Tropical Asian mega‐delta ponds: Important and threatened socio‐ecological systems

Moorhouse

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et al. 2021

Geography and Environment

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Species‐Habitat Relationships and Priority Areas for Marsh‐Breeding Birds in Ontario

et al. 2020

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Populations of marsh-breeding birds have declined throughout the southern Laurentian Great Lakes basin. To advance conservation of these species, we used occupancy modeling, a regional prioritization scheme, and data from Birds Canada's Great Lakes Marsh Monitoring Program (2016)(2017)(2018) to describe species-habitat relationships and identify priority habitat areas for 7 obligate marsh-breeding bird species in southern Ontario, Canada: American bittern (Botaurus lentiginosus), common gallinule (Gallinula galeata), least bittern (Ixobrychus exilis), marsh wren (Cistothorus palustris), pied-billed grebe (Podilymbus podiceps), sora (Porzana carolina), and Virginia rail (Rallus limicola). Given these species respond to land cover at widely varying spatial scales, we initially identified the most informative scale (buffer = 100 m, 200 m, 400 m, 800 m, 1,600 m, 3,200 m, or 6,400 m) for marsh, urban, agricultural, and forest cover to increase model performance. We also considered climate variables, whether sample sites were along a Great Lakes coastline or inland, and covariates influencing detection. Occupancy was best explained by land cover at a wide range of spatial scales depending on the species. All species except Virginia rail responded positively to marsh cover; American bittern and Virginia rail responded negatively to urban cover; least bittern, pied-billed grebe, and Virginia rail responded negatively and sora responded positively to agricultural cover; and American bittern, common gallinule, marsh wren, and pied-billed grebe responded negatively and Virginia rail responded positively to forest cover. Only American bittern responded negatively to mean May-June temperature; only pied-billed grebe responded positively to start of growing season; and only Virginia rail had higher occupancy at inland marshes compared to coastal. We combined predictions from the best model for each of 5 species with reasonably good model fit (we excluded sora and Virginia rail) to identify priority habitat areas for marsh-breeding birds. Expansion of wetland conservation work from existing priority areas based on waterfowl to also include these new additional priority areas based on marsh-breeding birds will be an important step towards conservation of all birds, and will help slow or maybe even reverse declining population trends. Some restoration activities outside but adjacent to priority areas will also be important for rebuilding marshes for these species across this intensively farmed and developed region.

show abstract

Comparisons of Bird, Aquatic Macroinvertebrate, and Plant Communities Among Dredged Ponds and Natural Wetland Habitats at Long Point, Lake Erie, Ontario

Cited by 28 publications

References 26 publications

Long-term effects of a Phragmites australis invasion on birds in a Lake Erie coastal marsh

Long-term effects of a Phragmites australis invasion on birds in a Lake Erie coastal marsh

Tropical Asian mega‐delta ponds: Important and threatened socio‐ecological systems

Species‐Habitat Relationships and Priority Areas for Marsh‐Breeding Birds in Ontario

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