Relationships between Wetland Macroinvertebrates and Waterfowl along an Agricultural Gradient in the Boreal Transition Zone of Western Canada

Silver, Carly A.; Thompson, Jonathan E.; Wong, Agnes S.; Bayley, Suzanne E.

doi:10.1898/11-03.1

Cited by 4 publications

(9 citation statements)

References 64 publications

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“…However, numerous other wetland studies have cited the importance of salinity (e.g. Preston & Ray, ), turbidity (Maurer et al., ; Stewart & Downing, ) and phosphorus (McCormick, Shuford, & Rawlik, ; Silver, Thompson, et al., ) in structuring aquatic macroinvertebrate communities. The only relationship to water quality that we detected in our study system was a mild association ( r 2 = .139) between sodium and a variation in community composition along our second ordination axis.…”

Section: Discussionmentioning

confidence: 99%

“…It is possible that a finer taxonomic resolution might reveal a stronger association between water quality or vegetation structure and wetland macroinvertebrates (e.g. Silver, Thompson, et al., ; Silver & Vamosi, ; Silver, Vamosi, et al., ). We also acknowledge that functional traits can vary within families and genus or species identifications would have allowed for taxa to be placed in more precise groups.…”

Section: Discussionmentioning

confidence: 99%

“…No macroinvertebrate behavioural guild was associated with temporarily-ponded wetlands, but other research has concluded that wetland macroinvertebrates typically have high functional group overlaps (i.e. taxa in constrained or "filtered" habitats share the same traits; Ruh ı, Boix, Gasc on, Sala, & Batzer, 2013;Schriever & Lytle, 2016 (Maurer et al, 2014;Stewart & Downing, 2008) and phosphorus (McCormick, Shuford, & Rawlik, 2004;Silver, Thompson, et al, 2012) in structuring aquatic macroinvertebrate communities. The only relationship to water quality that we detected in our study system was a mild association (r 2 = .139) between sodium and a variation in community composition along our second ordination axis.…”

Section: Shredders Gatherers Engulfers Filterersmentioning

confidence: 98%

“…Bonada, Prat, Resh, & Statzner, ; Cairns & Pratt, ) and, due to their diversity and ubiquity in wetlands, are a candidate taxon for evaluating the biological integrity of wetlands. Odonates in prairie‐pothole wetlands were found to respond negatively to grazing pressure (Foote & Rice Hornung, ; Silver & Vamosi, ), and there is evidence that crop production may affect macroinvertebrates in these ecosystems indirectly by increasing phosphorus levels (Silver, Thompson, Wong, & Bayley, ). However, the sensitivity of aquatic macroinvertebrates to surrounding land use and their effectiveness as bioindicators in wetlands has proven to be inconsistent (review in Batzer, ).…”

Section: Introductionmentioning

confidence: 99%

“…Salinity, in particular, may influence macroinvertebrate composition, although results in prairie-pothole wetlands are conflicted. For example, salinity was important in structuring macroinvertebrate communities in Alberta (Silver, Thompson, et al, 2012), but was not predictive of macroinvertebrate communities in North Dakota (Tangen et al, 2003). Outside of North America, aquatic macroinvertebrates inhabiting Spain's temporarily ponded wetlands are structured by salinity (often measured as electrical conductivity) and then by maximum water depth (Florencio, D ıaz-Paniagua, G omez-Rodr ıguez, & Serrano, 2014).…”

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confidence: 99%

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Pond permanence is a key determinant of aquatic macroinvertebrate community structure in wetlands

Gleason

Rooney

2017

Freshwater Biology

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Globally, many aquatic ecosystems experience periodic desiccation that imposes stress on biota. The Northern Prairie Pothole Region (NPPR) in Alberta, Canada, contains abundant wetlands that fill with spring snowmelt and then draw down throughout the summer. They are often assigned a pond‐permanence class based on the duration of ponded water. These dynamic wetlands are home to diverse and productive communities of macroinvertebrates. We expected that pond permanence structures macroinvertebrate communities in NPPR wetlands. In addition to exploring the taxonomic composition of macroinvertebrate communities, we aimed to characterise these communities by functional groups to test for associations between pond permanence and desiccation strategies, feeding groups or behavioural guilds. We sampled aquatic macroinvertebrates from 87 wetlands in the NPPR that spanned a range of pond‐permanence classes. We identified macroinvertebrates to the lowest practical taxonomic level, usually family. We then performed multivariate analyses (multiresponse permutation procedures, non‐metric multidimensional scaling) to identify differences in community composition and functional groups among permanence classes. Community composition of macroinvertebrates was statistically distinct among pond‐permanence classes, with the extremes of temporarily‐ and permanently‐ ponded wetlands differing most. Notably, macroinvertebrates in temporarily‐ ponded wetlands were not unique taxa specially adapted to low‐permanence wetlands, but rather a subset of the community found in more permanent wetlands. In other words, macroinvertebrates at the family level exhibit a nested pattern of diversity best predicted by the permanence of ponded water in wetlands.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Shredders Gatherers Engulfers Filterersmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Pond permanence is a key determinant of aquatic macroinvertebrate community structure in wetlands

Gleason

Rooney

2017

Freshwater Biology

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New avian breeding records for Kugluktuk, Nunavut

Lamont

2019

Can Field Nat

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New breeding records for 10 species of tundra and boreal nesting birds were documented near the community of Kugluktuk (Nunavut, Canada) over the course of the 2015 and 2016 breeding seasons and incidentally in 2017 and 2018. These species include American Wigeon (Mareca americana), Mallard (Anas platyrhynchos), Northern Shoveler (Anas clypeata), Green-winged Teal (Anas carolinensis), Greater Scaup (Aythya marila), Say’s Phoebe (Sayornis saya), Canada Jay (Perisoreus canadensis), Greycheeked Thrush (Catharus minimus), Yellow-rumped Warbler (Setophaga coronata), and Dark-eyed Junco (Junco hyemalis). Previously unpublished breeding evidence for Bald Eagle (Haliaeetus leucocephalus) is also discussed along with suspected breeding of Barn Swallow (Hirundo rustica), Bohemian Waxwing (Bombycilla garrulus), White-throated Sparrow (Zonotrichia albicollis), and Pine Grosbeak (Pinicola enucleator). These records represent the first described breeding occurrences for these species in the Kitikmeot region, or new records for the mainland of Nunavut. A lack of historical ornithological survey effort in this area has likely led to the diversity of these previously unrecorded breeding observations. These results highlight the need to increase geographic coverage of bird surveys in northern Canada to more accurately delineate the northern limit of breeding ranges and suggest that further formal survey effort will undoubtedly lead to additional new breeding records.

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Lepitzki¹

2019

Can Field Nat

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The objectives of this Club shall be to promote the appreciation, preservation and conservation of Canada's natural heritage; to encourage investigation and publish the results of research in all fields of natural history and to diffuse information on these fields as widely as possible; to support and cooperate with organizations engaged in preserving, maintaining or restoring environments of high quality for living things.

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Relationships between Wetland Macroinvertebrates and Waterfowl along an Agricultural Gradient in the Boreal Transition Zone of Western Canada

Cited by 4 publications

References 64 publications

Pond permanence is a key determinant of aquatic macroinvertebrate community structure in wetlands

Pond permanence is a key determinant of aquatic macroinvertebrate community structure in wetlands

New avian breeding records for Kugluktuk, Nunavut

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