Selection of lake habitats by waterbirds in the boreal transition zone of northeastern Alberta

We examined habitat characteristics associated with presence or absence of 16 waterbird species on 113 lakes during 2001–2006. We found that piscivorous species such as pelicans, loons, and mergansers were found on fish-bearing lakes, while birds that typically nest in emergent vegetation (e.g., coots, grebes) strongly preferred water bodies with moderate to high levels of emergent macrophytes. The presence of a riparian buffer was important for loons and several species of waterbird that nest on the backshore. Moderate to deep lake depth and high water clarity also were important for some species and likely associated with hunting habits and (or) fish availability. Breeding-occurrence models were developed for a few conspicuous species that could be sampled using aerial surveys. Surprisingly, changes in water levels were not important predictors for most species, and associations between waterbirds and high levels of recreational activity were unexpected. Common Loon (Gavia immer (Brunnich, 1764)) and Gr...

[1]  P. Beier,et al.  Do Habitat Corridors Provide Connectivity? , 1998 .

[2]  David R. Anderson,et al.  Model selection and multimodel inference : a practical information-theoretic approach , 2003 .

[3]  N. D. Niemuth,et al.  Effects of Lake Characteristics and Human Disturbance on the Presence of Piscivorous Birds in Northern Wisconsin, USA , 2005 .

[4]  Janet S. Boe.  Colony Site Selection by Eared Grebes in Minnesota , 1993 .

[5]  John Bell,et al.  A review of methods for the assessment of prediction errors in conservation presence/absence models , 1997, Environmental Conservation.

[6]  J. Gibbs,et al.  Determinants of the Size and Location of Great Blue Heron Colonies , 1997 .

[7]  W. D. Graul,et al.  Response of Breeding Great Blue Herons to Human Disturbance in Northcentral Colorado , 1985 .

[8]  C. Findlay,et al.  Estimating the ‘critical’ distance at which adjacent land-use degrades wetland water and sediment quality , 2004, Landscape Ecology.

[9]  J. K. Ringelman,et al.  Use of Wetland Habitats by Selected Nongame Water Birds in Maine , 1991 .

[10]  J A Swets,et al.  Measuring the accuracy of diagnostic systems. , 1988, Science.

[11]  R. Erwin.  Responses to human intruders by birds nesting in colonies: Experimental results and management guidelines , 1989 .

[12]  S. Bayley,et al.  Do wetland lakes exhibit alternative stable states? Submersed aquatic vegetation and chlorophyll in western boreal shallow lakes , 2003 .

[13]  B. Manly,et al.  Resource selection by animals: statistical design and analysis for field studies. , 1994 .

[14]  S. McWilliams,et al.  Waterfowl–habitat associations during winter in an urban North Atlantic estuary , 2006 .

[15]  T. Nudds,et al.  Effects of Climate Change and Land Use on Duck Abundance in Canadian Prairie‐Parklands , 1995 .

[16]  J. A. Rodgers,et al.  Buffer‐Zone Distances to Protect Foraging and Loafing Waterbirds from Disturbance by Personal Watercraft and Outboard‐Powered Boats , 2002, Conservation biology : the journal of the Society for Conservation Biology.

[17]  S. M. Murphy,et al.  Waterfowl populations and limnologic characteristics of taiga ponds , 1984 .

[18]  Steven L Van Wilgenburg,et al.  Large‐Scale Conversion of Forest to Agriculture in the Boreal Plains of Saskatchewan , 2002 .

[19]  D. MacKenzie.  Occupancy Estimation and Modeling: Inferring Patterns and Dynamics of Species Occurrence , 2005 .

[20]  A. Allen.  Habitat suitability index models , 1986 .

[21]  S. Boutin,et al.  Managing the cumulative impacts of land uses in the Western Canadian Sedimentary Basin: A modeling approach. , 2003 .