Percentage land use in the watershed determines the water and sediment quality of 22 marshes in the Great Lakes basin

Crosbie, Barb; Chow‐Fraser, Patricia

doi:10.1139/cjfas-56-10-1781

Cited by 45 publications

(58 citation statements)

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“…Across the Great Lakes basin, coastal wetlands are substantially affected by a general disturbance syndrome in which increasing intensity of anthropogenic activities in watersheds (e.g., agriculture), along shorelines (e.g., urban development), and within wetlands themselves (e.g., recreational boating) lead via a variety of causal pathways (sedimentation, eutrophication, dredging, diking, shoreline hardening) to altered physical habitat (Wilcox 1995), poorer water clarity (Crosbie and Chow-Fraser 1999;Morrice et al 2008), and degraded vegetation structure (Lougheed et al 2001;Albert and Minc 2004;Trebitz and Taylor 2007). While this paints a powerful and coherent picture of how human activities impact coastal wetland fish assemblages (Whillians 1992;Jude et al 2005), it also makes it difficult to disentangle proximate from ultimate causes of fish composition changes.…”

Section: Landscape-habitat Linkages and Effects Of Anthropogenic Strementioning

confidence: 99%

Geographic, anthropogenic, and habitat influences on Great Lakes coastal wetland fish assemblages

Trebitz

Brazner

Danz

et al. 2009

Can. J. Fish. Aquat. Sci.

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We analyzed data from coastal wetlands across the Laurentian Great Lakes to identify fish assemblage patterns and relationships to habitat, watershed condition, and regional setting. Nonmetric multidimensional scaling (NMDS) ordination of electrofishing catch-per-effort data revealed an overriding geographic and anthropogenic stressor gradient that appeared to structure fish composition via impacts on water clarity and vegetation structure. Wetlands in Lakes Erie and Michigan with agricultural watersheds, turbid water, little submerged vegetation, and a preponderance of generalist, tolerant fishes occupied one end of this gradient, while wetlands in Lake Superior with largely natural watersheds, clear water, abundant submerged vegetation, and diverse fishes occupied the other. Fish composition was also related to wetland morphology, hydrology, exposure, and substrate, but this was only evident within low-disturbance wetlands. Anthropogenic stress appears to homogenize fish composition among wetlands and mask other fish-habitat associations. Because land use is strongly spatially patterned across the Great Lakes and aquatic vegetation is a key habitat element that responds to both biogeography and disturbance, it is difficult to disentangle natural from anthropogenic drivers of coastal wetland fish composition.Résumé : Nous analysons des données provenant de terres humides riveraines réparties sur l'ensemble des Grands Lacs laurentiens afin d'identifier les patrons d'associations de poissons et leurs relations avec les habitats, les conditions du bassin versant et l'environnement régional. Une ordination de cadrage non métrique multidimensionnel (NMDS) de données de captures par unité d'effort de pêche électrique révèle l'existence d'un gradient prédominant de facteurs de stress géo-graphiques et anthropiques qui semble structurer la composition des peuplements de poissons par son impact sur la clarté de l'eau et la structure de la végétation. Les terres humides aux lacs É rié et Michigan avec des bassins versants agricoles, de l'eau turbide, une végétation submergée rare et une prépondérance de poissons généralistes et tolérants, occupent une extrémité de ce gradient; en revanche, les terres humides du lac Supérieur avec des bassins versants en grande partie naturels, de l'eau claire, une végétation submergée abondante et une diversité de poissons, occupent l'autre extrémité. La composition des peuplements de poissons est aussi en relation avec la morphologie des terres humides, l'hydrologie, l'exposition et le substrat, mais la relation n'est évidente que dans les terres humides peu perturbées. Le stress anthropique semble homogénéiser la composition des peuplements de poissons dans les différentes terres humides et masquer les autres associations poissons-habitats. Parce que l'utilisation des terres dans la région des Grands Lacs forme un patron spatial bien marqué et que la végétation est un élément essentiel de l'habitat qui réagit à la fois à la biogéographie et aux perturbations, il est difficile de démêler...

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Section: Landscape-habitat Linkages and Effects Of Anthropogenic Strementioning

confidence: 99%

Geographic, anthropogenic, and habitat influences on Great Lakes coastal wetland fish assemblages

Trebitz

Brazner

Danz

et al. 2009

Can. J. Fish. Aquat. Sci.

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“…3; r 2 ϭ 0.32, P Ͻ 0.0001), leveling off at ϳ10 species of submergent plants and a WZI value of 4. This is not unexpected, given the significant relationship between submergent plants species richness and wetland water quality (Crosbie and Chow-Fraser 1999;Lougheed et al 2001).…”

Section: Development Of Wetland Zooplankton Index (Wzi)mentioning

confidence: 85%

“…Second, zooplankton taxa often have different preferences for trophic state Bertilsson 1989, Berzins andPejler 1989) , and therefore species replacement will also occur with water quality degradation. Finally, since the species richness of submersed macrophytes declines as marshes become eutrophic and degraded (Crosbie and Chow-Fraser 1999;Lougheed et al 2001), we hypothesize that the zooplankton community should reflect changes in the plant community as we proceed along the trophic-degradation gradient.…”

Section: Introductionmentioning

confidence: 99%

Development and Use of a Zooplankton Index of Wetland Quality in the Laurentian Great Lakes Basin

Lougheed¹,

Chow‐Fraser²

2002

Ecological Applications

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Recent interest in biological monitoring as an ecosystem assessment tool has stimulated the development of a number of biotic indices designed to aid in the evaluation of ecosystem integrity; however, zooplankton have rarely been included in biomonitoring schemes. We developed a wetland zooplankton index (WZI) based on water quality and zooplankton associations with aquatic vegetation (emergent, submergent, and floating-leaf) that could be used to assess wetland quality, in particular in marshes of the Laurentian Great Lakes basin. Seventy coastal and inland marshes were sampled during 1995-2000; these ranged from pristine, macrophyte-dominated systems, to highly degraded systems containing only a fringe of emergent vegetation. The index was developed based on the results of a partial canonical correspondence analysis (pCCA), which indicated that plantassociated taxa such as chydorid and macrothricid cladocerans were common in high-quality wetlands, while more open-water, pollution-tolerant taxa (e.g., Brachionus, Moina) dominated degraded wetlands. The WZI was found to be more useful than indices of diversity (HЈ, species richness) and measures of community structure (mean cladoceran size, total abundance) for indicating wetland quality. Furthermore, an independent test of the WZI in a coastal wetland of the Great Lakes, Cootes Paradise Marsh, correctly detected moderate improvements in water quality following carp exclusion. Since wetlands used in this study covered a wide environmental and geographic range, the index should be broadly applicable to wetlands in the Laurentian Great Lakes basin, while further research is required to confirm its suitability in other regions and other vegetated habitats.

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“…Invasive Typha has become abundant in Great Lakes regional wetlands (Mills et al, 1993;Trebitz & Taylor, 2007) because of increased propagule pressure (Zedler & Kercher, 2004;Lockwood et al, 2005), alterations in hydrology (McDonald, 1955;Wilcox et al, 1985;Shay & Shay, 1986;Wilcox & Nichols, 2008;Farrell et al, 2010) and anthropogenic nutrient enrichment (Crosbie & Chow-Fraser, 1999;Trebitz & Taylor, 2007;Morrice et al, 2008). Typha tolerates a wide range of water levels (Harris & Marshall, 1963;Waters & Shay, 1990), and recent historically low water levels have been linked to invasions into Lake Michigan and Lake Huron coastal wetlands (Frieswyk & Zedler, 2007;Tulbure et al, 2007;Lishawa et al, 2010).…”

Section: Invasive Typha Spp In Great Lakes Wetlandsmentioning

confidence: 99%

Reconstructing plant invasions using historical aerial imagery and pollen core analysis: Typha in the Laurentian Great Lakes

Lishawa

Treering

Vail

et al. 2012

Diversity and Distributions

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Aim Determining the spatial‐temporal spread of an invasive plant is vital for understanding long‐term impacts. However, invasions have rarely been directly documented given the resources required and the need for substantial foresight. One method widely used is historical photography interpretation, but this can be hard to verify. We attempt to improve this method by linking historical aerial photos to a paleobotanical analysis of pollen cores. Location Laurentian Great Lakes coastal wetlands, United States of America. Methods We chose invasive cattail ( Typha) as our model species because it is identifiable from aerial imagery and has persistent, identifiable pollen, and its ecological impacts appear to be time‐dependent. We used Geographic Information Systems, aerial photo‐interpretation and field verification to post‐dict the invasion history of Typha in several wetland ecosystems. Using 210 Pb and 137 Cs sediment dating and pollen classification, we correlated the temporal dominance of Typha to our estimates of per cent coverage at one site. The pollen record was then used to estimate the Typha invasion dynamics for dates earlier than those for which aerial photos were available. Results Typha spread through time in all study wetlands. Typha pollen dominance increased through time corresponding with increased spatial dominance. Hybrid cattail, T. × glauca increased in pollen abundance relative to T. angustifolia pollen through time. Main conclusions This study illustrates the value of generating historical invasion maps with publically available aerial imagery and linking these maps with paleobotanical data to study recent (< 100 years) invasions. We determined rates of Typha expansion in two coastal wetland types, validated our mapping methods and modelled the relationship between pollen abundance and wetland coverage, enhancing the temporal precision and breadth of analyses. Our methodology should be replicable with similar invasive plant species. The combination of pollen records and historical photography promises to be a valuable additional tool for determining invasion dynamics.

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Percentage land use in the watershed determines the water and sediment quality of 22 marshes in the Great Lakes basin

Cited by 45 publications

References 0 publications

Geographic, anthropogenic, and habitat influences on Great Lakes coastal wetland fish assemblages

Geographic, anthropogenic, and habitat influences on Great Lakes coastal wetland fish assemblages

Development and Use of a Zooplankton Index of Wetland Quality in the Laurentian Great Lakes Basin

Reconstructing plant invasions using historical aerial imagery and pollen core analysis: Typha in the Laurentian Great Lakes

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