Journal ArticleDOI
Moist-soil Plant Seed Production for Waterfowl at Chautauqua National Wildlife Refuge, Illinois
Matthew W. Bowyer,Joshua D. Stafford,Aaron P. Yetter,Christopher S. Hine,Michelle M. Horath,Stephen P. Havera +5 more
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TLDR
In this paper, the authors evaluated seed production and carrying capacity of a 931ha wetland at Chautauqua National Wildlife Refuge in central Illinois during falls 1999-2001, and estimated carrying capacity across years was 6.760 ± 411 (se) duck use-days/ha.Abstract:
The Illinois River Valley (IRV) is a critical ecoregion for migratory waterfowl. Significant wetland loss occurred in this region in the early 20th Century, and remaining wetlands are subject to additional degradation via sedimentation, summer flooding from the Illinois River and invasive species. Managed moist-soil wetlands may provide quality foraging habitat for migrating waterfowl, but contemporary estimates of seed production and carrying capacity do not exist for the IRV. We evaluated seed production and carrying capacity of a 931-ha moist-soil wetland at Chautauqua National Wildlife Refuge in central Illinois during falls 1999–2001. Seed production varied annually (329–1231 kg/ha), but overall was greater than previously published estimates for other areas of North America. Estimated carrying capacity across years was 6.760 ± 411 (se) duck use-days/ha; this value was 1.5–15.4 times greater than other published carrying capacity estimates for harvested corn, rice and soybeans. We recommend ...read more
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Journal ArticleDOI
Moist-Soil Seed Abundance in Managed Wetlands in the Mississippi Alluvial Valley
TL;DR: This article conducted a multi-stage sample survey on state and federal lands in the Mississippi Alluvial Valley (MAV) of Arkansas, Louisiana, Mississippi, and Missouri during autumns 2002-2004 to generate a contemporary estimate of combined dry mass of seeds and tubers (herein seed abundance) in managed moist-soil units for use by the Lower Mississippi Valley Joint Venture (LMVJV) of the North American Waterfowl Management Plan.
Journal ArticleDOI
Avian Foods, Foraging and Habitat Conservation in World Rice Fields
TL;DR: Evaluating and implementing management practices that are ecologically sustainable, increase food for birds and are agronomically beneficial should be global priorities to integrate rice production and avian conservation.
Journal ArticleDOI
Energetic carrying capacity of actively and passively managed wetlands for migrating ducks in Ohio
TL;DR: In this paper, the authors used multistage sampling during autumn and spring 2001-2004 to estimate energetic carrying capacity (ECC) of actively and passively managed wetlands in Ohio, USA, and examined this assumption.
Journal ArticleDOI
Synthesis of Upper Mississippi River System submersed and emergent aquatic vegetation: past, present, and future
TL;DR: The Upper Mississippi River System (UMRS) is one of the most diverse watersheds in the world as discussed by the authors, with most of the aquatic vegetation being found between lower Pool 4 (below Lake Pepin) and Pool 13.
References
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Book
The estimation of animal abundance and related parameters
TL;DR: In this paper, the author explains in detail the methods developed by ecologists for estimating animal numbers and related parameters such as mortality and birth rates, such as birth rate and mortality.
Journal ArticleDOI
The Estimation of Animal Abundance and Related Parameters
G. M. Jolly,G. A. F. Seber +1 more
TL;DR: The author, one of the world's leading experts in the study of animal populations, explains in detail the methods developed by ecologists for estimating animal numbers and related parameters such as mortality and birth rates.
Book
Habitat management for migrating and wintering waterfowl in North America
TL;DR: Habitat Management for Wintering and Migrating Waterfowl in North America presents the first comprehensive overview of management strategies for non-breeding waterfowl throughout North America.