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Titolo:
A SPATIAL HABITAT MODEL FOR THE MARSH-BREEDING RED-WINGED BLACKBIRD (AGELAIUS-PHOENICEUS L) IN COASTAL LAKE ERIE WETLANDS
Autore:
OZESMI U; MITSCH WJ;
Indirizzi:
UNIV MINNESOTA,MACARTHUR PROGRAM PEACE & INT COOPERAT,267-19TH AVE S,260 SOCIAL SCI MINNEAPOLIS MN 55455 OHIO STATE UNIV,SCH NAT RESOURCES,ENVIRONM SCI GRAD PROGRAM COLUMBUS OH 43210
Titolo Testata:
Ecological modelling
fascicolo: 2-3, volume: 101, anno: 1997,
pagine: 139 - 152
SICI:
0304-3800(1997)101:2-3<139:ASHMFT>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPTIMAL NICHE SPACE; REDWINGED BLACKBIRD; GREAT-LAKES; REPRODUCTIVE SUCCESS; TEMPORAL PATTERNS; NESTING HABITAT; UPLAND HABITAT; SELECTION;
Keywords:
GEOGRAPHIC INFORMATION SYSTEM (GIS); SPATIAL MODEL; HABITAT MODEL; WETLAND MANAGEMENT; WILDLIFE MANAGEMENT; LAURENTIAN GREAT LAKES, OHIO; FRESH-WATER MARSH; LOGISTIC REGRESSION; NESTING; BREEDING DISTRIBUTION; RED-WINGED BLACKBIRD; AGELAIUS PHOENICEUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
53
Recensione:
Indirizzi per estratti:
Citazione:
U. Ozesmi e W.J. Mitsch, "A SPATIAL HABITAT MODEL FOR THE MARSH-BREEDING RED-WINGED BLACKBIRD (AGELAIUS-PHOENICEUS L) IN COASTAL LAKE ERIE WETLANDS", Ecological modelling, 101(2-3), 1997, pp. 139-152

Abstract

A spatial model was developed to predict the distribution of a marsh-nesting bird species, red-winged blackbird (Agelaius phoeniceus L.) inLake Erie coastal wetlands. The study site was in two diked wetland basins in Ottawa County, Ohio, USA. Geographic Information System (GIS)was used for data handling, storage, analyzing and running the model. Nests of birds were located, and vegetation durability, vegetation height, vegetation density, water depth, open water and structural aspects of the study basins were quantified by low altitude aerial photography and extensive field work for ground truthing. Spatial variables such as distance to open water edge, distance to wetlands edge, and friction maps by spread over depth and stem density for simulating predator access to wetlands were generated using the GIS. Model variables andcoefficients were determined using logistic regression. Vegetation durability, distance to open water and depth of water significantly (P<0.01) affected the nesting outcome. Results show that the probability of a bird nesting in a location within a marsh increased with increasing vegetation durability, water depth, and with decreasing distance to open water edge. Model verification and validation indicated that the model did not show any interspecific interactions or clumping of nest sites defined by behavioral constraints. Results were in accordance with the conclusions of previous studies looking at breeding success of red-winged blackbird. This study validated the processes affecting nest site selection of red-winged blackbirds with extensive data and statistical analyses. The methodology and versatile character of the GIS-based spatial model enables adaptations to any other marsh-nesting birdspecies and geographic area. Data needed for the model are relativelyeasy to obtain and the model provides micro-habitat scale results that can be used by wetland conservationists and managers. (C) 1997 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 09:30:43