Species richness and nest productivity of marsh birds on restored prairie potholes in northern Iowa

Hemesath, Lisa M.

doi:10.31274/rtd-180813-13208

Cited by 9 publications

(17 citation statements)

References 25 publications

(26 reference statements)

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“…Natural recovery of invertebrates results from remnant invertebrate egg banks, refugial populations, or by dispersal of propagules or adults into wetlands from surrounding sources. Insects with aerial dispersal capabilities have been shown to recolonize restored wetlands rapidly (LaGrange and Dinsmore 1989, Sewell 1989, Delphey 1991, Hemesath 1991, VanRees-Siewert 1993. In contrast, some studies have indicated that less mobile and passively dispersed invertebrates were poorly represented in restored wetlands (Delphey 1991, VanRees-Siewert 1993, Brown et al 1997).…”

Section: Introductionmentioning

confidence: 99%

Invertebrate egg banks of restored, natural, and drained wetlands in the prairie pothole region of the United States

et al. 2004

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Analogous to 'seed banks,' 'egg banks' are important for seasonal succession and maintenance of invertebrate species diversity throughout wet and dry cycles in the prairie pothole region. Further, recruitment of invertebrates from relic egg banks in the sediments and dispersal of eggs into wetlands is believed to be important for reestablishment of invertebrates in recently restored wetlands. Alhough tens-ofthousands of wetlands have been restored in the prairie pothole region of the United States, studies have not been conducted to evaluate the recovery of invertebrate egg banks in restored wetlands. We used taxon richness and abundance as indicators of potential egg bank recovery and compared these parameters in restored wetlands to those of non-drained and drained wetlands with a history of cultivation and also to reference wetlands with no history of cultivation. We found few significant differences among wetland categories within three physiographic regions (Glaciated Plains, Missouri Coteau, and Prairie Coteau). Most statistical comparisons indicated that restored wetlands had invertebrate egg banks similar to reference, nondrained, and drained wetlands. The one exception was drained seasonal wetlands in the Glaciated Plains, which had significantly lower taxon richness and invertebrate abundance than the other wetland categories. Trends did suggest that invertebrate egg bank taxon richness and abundance are increasing in restored seasonal wetlands relative to their drained analogues, whereas a similar trend was not observed for restored semi-permanent wetlands. Although recovery was not related to years since restoration, comparisons of restored wetlands with reference wetlands suggest that recovery potential may be inversely related to the extent of wetland drainage and intensive agriculture that varies spatially in the prairie pothole region. Our research suggests that periodic drawdowns of semi-permanent restored wetlands may be needed to promote production and development of invertebrate egg banks. Inoculation of restored wetlands may also be needed in areas where extensive wetland drainage has resulted in fewer wetland habitats to provide sources of passively dispersed eggs to newly restored wetlands.

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Section: Introductionmentioning

confidence: 99%

Invertebrate egg banks of restored, natural, and drained wetlands in the prairie pothole region of the United States

et al. 2004

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“…Floating perennials and woody plants also were ignored because of their small contribution to or sporadic presence in prairie wetlands. (Delphey, 1991;Hemesath, 1991;Sewell, 1990). Sewell (1989) Likewise, Zenner and others (1990) observed average breeding pairs/hectare of water to be 2.7 for mallard, 1.4 for blue-winged teal, and 0.5 for all other ducks and geese.…”

Section: Project Failuresmentioning

confidence: 99%

Site selection, design criteria and performance assessment for wetland restorations in the prairie pothole region

Galatowitsch

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Between 1987 and 1991,1892 wetlands (2714 ha) were restored by state and federal agencies, most as part of the Conservation Reserve Program in northern Iowa, southern Minnesota, and southeastern South Dakota. These restored wetlands are assumed to provide wildlife habitat and improve water quality. These assumptions were evaluated by comparing features of restored wetlands to those of natural wetlands (historic or extant). A preliminary evaluation was made on all restorations; more detailed information was collected on 62 wetlands restored in 1988. The water quality evaluation is based on watershed land use, basin morphometry, and emergent vegetation development. The evaluation of restored wetlands as wildlife habitat is based on wetland type, water regime, and vegetation composition and zonation. Thirty-six of the 62 restorations do not have any part of their watershed in row-crop production and only ten had more than 50% in row crops. Earthen dams are installed on most (73%) of all restorations in the region, increasing the full pool volume and consequently the potential water residence time. However, nearly all wetlands restored by removing drainage tile (17% of all sites) have inlets positioned next to outlets, greatly diminishing water residence time at full pool. Most restorations are less than 4 ha and 41 % have soils indicating an ephemeral to seasonal pre-drainage water regime. Wetlands restored to be ephemeral/temporary are under-represented compared to their pre-agricultural extent. After three years, wet prairie and sedge meadow zones have not re established in most restorations (0% and 9%, respectively). The number of wet prairie, sedge meadow, and shallow emergent species is less than for natural wetlands. Natural wetlands have 1-22 wet prairie species, whereas restored wetlands have 0-2 species. Sedge meadow species number 7-49 in natural wetlands and 0-9 in restored wetlands. Seven to 19 shallow emergent species are present in natural wetlands, compared with 1-8 species for restored wetlands. Deep emergent and submersed aquatic zones develop in restored wetlands and the species richness of these communities is comparable to that of natural wetlands.

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“…When feasible, restore wetlands within wetland complexes or those that are surrounded by a high density of wetlands in the landscape (VanRees-Siewert 1993, VanRees-Siewert and Dinsmore 1996, Dault 2001, Fairbairn and Dinsmore 2001a. Restoring groups of wetlands of various types and sizes will provide habitat regardless of water conditions in a given year (Hemesath 1991, Hemesath and Dinsmore 1993, Dault 2001, Fairbairn and Dinsmore 2001a In general, avian mortality due to power line collisions can be reduced by placing utility lines several kilometers away from wetlands, waterfowl concentration areas, flyways, roosting areas, feeding areas, low passes, breeding areas, and especially paths between feeding and roosting or nesting areas (Thompson 1978, Malcolm 1982. Mortality due to fences can be reduced by reviewing fence construction plans and modifying plans for proposed management projects (i.e., replacing or removing dangerous fences) (Allen and Ramirez 1990).…”

Section: Management Recommendationsmentioning

confidence: 99%

“…Area was a significant predictor of BBSR. ______________________________________________________________________________ Hemesath, L. M. 1991. Species richness and nest productivity of marsh birds on restored prairie potholes in northern Iowa.…”

Section: Annotated Articlesmentioning

confidence: 99%

“…Focus restoration efforts on providing a diverse vegetative community that closely resembles natural wetlands (Dault 2001). To promote quick response of wetland vegetation, restore recently (<30 yr ago) drained wetlands or wetlands that were not effectively drained, such as those typically used for pasture or hayfields for which there is less incentive to completely drain the area (Hemesath 1991, Hemesath andDinsmore 1993). Active planting of wet-meadow species in restoration projects may be needed to attract wet-meadow nesting species such as rails and bitterns (VanRees-Siewert 1993, VanRees-Siewert and Dinsmore 1996, Dault 2001.…”

Section: Management Recommendationsmentioning

confidence: 99%

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Effects of management practices on wetland birds: Virginia rail

Zimmerman¹,

Dechant²,

Jamison³

et al. 2002

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Species richness and nest productivity of marsh birds on restored prairie potholes in northern Iowa

Cited by 9 publications

References 25 publications

Invertebrate egg banks of restored, natural, and drained wetlands in the prairie pothole region of the United States

Invertebrate egg banks of restored, natural, and drained wetlands in the prairie pothole region of the United States

Site selection, design criteria and performance assessment for wetland restorations in the prairie pothole region

Effects of management practices on wetland birds: Virginia rail

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