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F.3-4: Linking LTRM Vegetation Data with Bioenergetics Needs of Waterfowl to Inform Wildlife Habitat Management

Presented by Kirsten I Schmidt - Email: kschm107@uwsp.edu

The Upper Mississippi River is a large and diverse ecosystem known for its rich diversity of flora and fauna. Many areas of the Upper Mississippi River harbor vast areas ideally suited for the growth of aquatic vegetation, especially wild celery (Val...
Session: Winter Energetics (Wednesday, August 28, 15:30 to 16:50)

F.4-1: Obtaining an unknown goal: a critical review of sea duck harvest management using a prescribed take level framework

Presented by Scott Gilliland - Email: sgg64@mac.com

A Prescribed Take Level framework (PTL) was recently developed to assess sport harvest for North American sea duck populations. Under PTL, the predicted harvest rate that achieves maximum sustained yield (MSY) is entirely dependent on the estimate o...
Session: Harvest (Wednesday, August 28, 15:30 to 16:50)

F.4-2: Long-tailed Duck Harvest Characteristics from Two Rivers, Wisconsin: Lake Michigan

Presented by Luke Fara - Email: lfara@usgs.gov

An in-person hunter harvest survey was conducted at Two Rivers, Wisconsin, to determine how environmental variables might have influenced hunter participation and harvest of long-tailed ducks (LTDU; Clangula hyemalis), to estimate hunter harvest rate...
Session: Harvest (Wednesday, August 28, 15:30 to 16:50)

F.4-3: Spatiotemporal Dynamics in Winter Harvest Distribution of Mallards Banded in Arkansas

Presented by Douglas C OSborne - Email: osborne@uamont.edu

Band encounter data has been used to draw inferences about dynamics in distribution patterns of mallards (Anas platyrhynchos) since the 1950s. Based on these data, others have documented shifts in wintering locations of mallards in the Pacific Flyway...
Session: Harvest (Wednesday, August 28, 15:30 to 16:50)

F.4-4: Municipal mallards: Movement ecology and harvest of urban ducks

Presented by Ben O'Neal - Email: BONEAL@FRANKLINCOLLEGE.EDU

Mallards (Anas platyrhynchos) have long been recognized for their importance to wetland ecology and hunting. In general, our management and conservation models for this important species have focused on traditional population segments such as those i...
Session: Harvest (Wednesday, August 28, 15:30 to 16:50)

G.1-1: Ducks in a transforming landscape: implications of a changing climate

Presented by Danny Blair - Email: d.blair@uwinnipeg.ca

Climate change is well underway, and there is much more on the way. Winnipeg’s Prairie Climate Centre is at the forefront of communicating the science, impacts and risks of climate change to all Canadians. This presentation will review what has happ...
Session: Climate Change (Thursday, August 29, 8:15 to 10:00)

G.1-2: 2006-2018 Habitat changes in Interior BC: hydrological effects on waterfowl habitats.

Presented by Andre Breault - Email: andre.breault@canada.ca

Over 20 species of waterfowl breed in Central Interior Plateau of British Columbia (CIPBC), an area covering 11 million ha identified in the 2012 North American Waterfowl Management Plan as one of 43 waterfowl areas of greatest continental significan...
Session: Climate Change (Thursday, August 29, 8:15 to 10:00)

G.1-3: Where have all the eiders gone?

Presented by Scott Gilliland - Email: sgg64@mac.com

The American Common Eiders breeding range extends from ME to central Labrador and wintering range from insular Newfoundland to RI. Concerns for their status arose around 2005 when large wrecks of eiders tuned up on beaches in MA. About the same tim...
Session: Climate Change (Thursday, August 29, 8:15 to 10:00)

G.1-4: Impact of Climate Change on Wetland Density and Waterfowl Production in Prairie Canada

Presented by Lauren Bortolotti - Email: l_bortolotti@ducks.ca

Prairie wetlands are important to breeding waterfowl in North America, but are expected to be sensitive to changes in temperature and precipitation, with anthropogenic climate change possibly altering wetland abundance and distribution. Together, wet...
Session: Climate Change (Thursday, August 29, 8:15 to 10:00)

G.2-1: Nonbreeding distribution dynamics of waterfowl: Are patterns changing in the 21st Century?

Presented by Tom Moorman - Email: tmoorman@ducks.org

Most waterfowl species in North America are highly migratory, an adaption arising ultimately from pressures exerted by a seasonal climate resulting from annual changes in the tilt of the earths axis relative to latitude. Migration enables waterfowl ...
Session: Migration & Winter Distribution Changes (Thursday, August 29, 10:30 to 12:00)

G.2-2: Incorporating climate science into conservation planning for waterfowl during the non-breeding period

Presented by Michael L Schummer - Email: mlschumm@esf.edu

Waterfowl are highly mobile during the non-breeding period with movements dictated by ultimate and proximate mechanisms. Evolution of movements are largely beyond control, whereas conservation planners can react to proximate mechanisms including chan...
Session: Migration & Winter Distribution Changes (Thursday, August 29, 10:30 to 12:00)

G.2-3: What role do duck demographics play in duck harvest for southern and northern hunters in the Mississippi Flyway?

Presented by Frank C. Rohwer - Email: frohwer@deltawaterfowl.org

"Hunters in some areas experienced poor waterfowl hunting and reported observing fewer ducks in recent years. Conspiracy theories re-emerged – NGOs (including Delta) and agencies were accused of nefarious dealings to change duck distribution. W...
Session: Migration & Winter Distribution Changes (Thursday, August 29, 10:30 to 12:00)

G.2-4: Waterfowl Hunting and Harvest: Perceptions, Reality, and Somewhere In Between

Presented by Dale Humburg - Email: dhumburg@ducks.org

Waterfowl hunting and harvest continue to change. Long-term and large-scale landscape changes affecting habitat for birds as well as hunters are confounded by year-to-year variation in bird distribution and local habitat conditions. The result is con...
Session: Migration & Winter Distribution Changes (Thursday, August 29, 10:30 to 12:00)

H.1-1: Comparison between chain-drag and thermal unmanned aerial system as upland waterfowl nest searching method

Presented by Roald Stander - Email: roaldstander@gmail.com

In less than 10 years since the release of the first commercially available Unmanned Aerial System (drone), their use has become widespread in wildlife research in both optical and thermal applications, but no published studies examine the use of a d...
Session: New Technology (Thursday, August 29,13:20 to 15:00)

H.1-2: Use of Unmanned Aerial Vehicles for Conducting Breeding Waterfowl Surveys in Manitoba

Presented by Jacob Bushaw - Email: jbusha1@lsu.edu

Duck pair counts, nest monitoring, and brood surveys are important for estimating abundance and productivity on the breeding grounds. These time-consuming surveys require substantial investments in personnel and are still prone to systematic non-det...
Session: New Technology (Thursday, August 29,13:20 to 15:00)

H.1-3: Geolocator use on multiple species of ducks in Nevada

Presented by Chris Nicolai - Email: chris_nicolai@fws.gov

Geolocators are a relatively new, small, and cheap technology that uses light levels to assess animal movements and behavior, but have received little attention for waterfowl studies. We attached geolocators on wood ducks, mallards, and canvasbacks ...
Session: New Technology (Thursday, August 29, 13:20 to 15:00)

H.1-4: How much is too much? GPS interval trade-offs and bias

Presented by Cory Overton - Email: coverton@usgs.gov

Advancements in technology are rapidly increasing the capacity for wildlife researchers to obtain high frequency data on ever smaller organisms and at less expense. This capability results in comparatively large datasets and include more individuals ...
Session: New Technology (Thursday, August 29,13:20 to 15:00)

H.1-5: SWAMP: Updates on an agent-based modeling program to evaluate carrying capacity of winter and migrational habitats

Presented by Robert Blenk - Email: RHBLENK@UCDAVIS.EDU

Agent-based modeling (ABM) of waterfowl populations is an increasingly appealing approach for researchers and managers due to the ability to incorporate spatial dynamics, evaluate multiple metrics of waterfowl condition and survival, undertake scenar...
Session: New Technology (Thursday, August 29,13:20 to 15:00)

H.2-1: GPS tracking data reveals daily spatio-temporal movement patterns of waterfowl

Presented by Michael L. Casazza - Email: mike_casazza@usgs.gov

Spatio-temporal movement patterns characterize relationships between organisms and their surroundings, and improve understanding of species ecology, activity budgets, bioenergetics, and habitat resource management. Highly mobile waterfowl, which can ...
Session: Movement & Tracking (Thursday, August 29, 13:20 to 15:00)

H.2-2: Joint use of location and acceleration data to quantify habitat use transitions in Arctic-nesting geese

Presented by Jay A. VonBank - Email: jay.vonbank@students.tamuk.edu

Throughout the 20th century, greater white-fronted geese (Anser albifrons frontalis) primarily wintered in Texas and Louisiana, but over the last two decades have shifted their main wintering distribution northeastward, primarily into the Mississippi...
Session: Movement & Tracking (Thursday, August 29, 13:20 to 15:00)

H.2-3: An overview of isotopic methods and applications for estimating origins of migratory waterfowl

Presented by Douglas C. Tozer - Email: dtozer@birdscanada.org

Ratios of naturally-occurring stable isotopes (e.g., 2H, 13C, 15N, 18O, 34S) in bird tissues such as claws or feathers are now routinely sampled to estimate migratory connectivity in a variety of bird species including waterfowl. The method takes adv...
Session: Movement & Tracking (Thursday, August 29, 13:20 to 15:00)