A multi partner research project
Download
1 / 23

Chronology and Rates of Migratory Movements - PowerPoint PPT Presentation


  • 279 Views
  • Updated On :

Chronology and Rates of Migratory Movements, Migration Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring Some Preliminary Results from a Pilot Study. A Multi-Partner Research Project.

Related searches for Chronology and Rates of Migratory Movements

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Chronology and Rates of Migratory Movements' - LeeJohn


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
A multi partner research project l.jpg

Chronology and Rates of Migratory Movements, Migration Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in SpringSome Preliminary Resultsfrom a Pilot Study

A Multi-Partner Research Project

Photo by Fred Greenslade


Study partners l.jpg
STUDY PARTNERS: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • Upper Mississippi River and Great Lakes Joint Venture

  • Prairie Pothole Joint Venture

  • U. S. Fish and Wildlife Service, Region 3

  • Minnesota Department of Natural Resources

  • USGS-Louisiana Cooperative Fish and Wildlife Research Unit

  • Louisiana State University

  • Louisiana Department of Wildlife and Fisheries

  • University of Illinois College of Veterinary Medicine

  • USGS-Northern Prairie Wildlife Research Center

  • Iowa Department of Natural Resources

  • Illinois Department of Natural Resources

  • Ducks Unlimited Inc.

  • North Dakota Game and Fish Department

  • Long Point Waterfowl and Wetlands Research Fund

  • Kibbe Research Station of Western Illinois University

  • Ontario Ministry of Natural Resources

  • Missouri Department of Conservation

  • Des Moines County Conservation Board

  • Louisa County Conservation Board

  • Tri Oak Foods

  • Mississippi Valley Calling Association


Major hypotheses for scaup population decline l.jpg
Major Hypotheses for Scaup Population Decline: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • Decreased quality and quantity of food resources on winter and spring migration areas (H1)

  • Accumulation of contaminants (H2)

  • Climate and habitat changes on boreal forest breeding areas (H3)


Hypotheses for scaup population decline l.jpg
Hypotheses for Scaup Population Decline: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • All 3 major hypotheses may be directly or indirectly affecting female survival or recruitment

  • Hunting probably has not been a factor in the population decline, given low harvest rates and a recent band analysis that found no relationship between harvest rates and annual survival probabilities since the 1950s (Nicolai et al. 2006)

  • H1 has been formalized as the Spring Condition Hypothesis and is a focus of this Pilot Study


This pilot study l.jpg
This Pilot Study: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • Is a follow up to previous research of scaup on Pool 19 (by Mike Anteau and Al Afton at LSU).

  • They previously color-marked scaup on Pool 19 in 2004 (spray paint) and 2005 (nasal saddles), but obtained too few re-sightings of marked birds to answer research questions of interest

  • Thus, satellite radios were tested in a sample of females in spring 2007


Objective 1 l.jpg

Objective 1: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

Document migration corridors and affiliations to breeding and wintering areas of females stopping-over on Pool 19 during spring

- To help identify and prioritize regions and areas for habitat conservation and management

- To provide new information concerning the links and importance of Pool 19 to females utilizing various breeding and wintering areas in North America


Objective 2 l.jpg

Objective 2: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

Document migration chronology and estimate rate of movement (km/day) and flight distances (km) from Pool 19 to individual breeding sites

- Further test the Spring Condition Hypothesis as a potential cause of the scaup population decline

- Determine relative importance of stopover areas in the Upper-Midwest for accumulation of nutrient reserves used for breeding


Objective 3 l.jpg

Objective 3: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

Identify specific lakes and large wetlands used by migrating females after departure from Pool 19

To allow subsequent quantitative analyses of habitat use across a large landscape

- To provide guidance to managers for acquisition, protection, and management of important migration habitats in the Upper-Midwest


Objective 4 l.jpg

Objective 4: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

Band a large sample (>2000) of lesser scaup

To support and encourage subsequent annual operational bandings on Pool 19

- To provide opportunity for direct estimates of harvest rate and survival using new band analysis techniques (Nicolai et al. 2006)


Capture methods l.jpg

Dive-in Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

Funnel opening below water level

Capture Methods:

  • We used dive-in traps developed by IL DNR personnel


Capture methods11 l.jpg
Capture Methods: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • Traps were checked/emptied 2 to 3 times a day

    • Mid morning

    • Afternoon

    • Just before dark


Bird handling l.jpg
Bird Handling: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • Scaup were placed in holding pens


Bird handling13 l.jpg
Bird Handling: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • Leg Banded


Bird handling14 l.jpg
Bird Handling: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • Body mass was recorded


Implantation of ptts l.jpg
Implantation of PTTs Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • Surgeries by Dr. Mark Mitchell, U of IL


Preliminary results l.jpg

Preliminary Results Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring


Banding l.jpg
Banding Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • We banded, weighed, and released 2482 Lesser Scaup in March 2007

  • 309 females and 2173 males


Recaptures l.jpg
Recaptures Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • We recaptured and released 6 male lesser scaup that were banded and nasal-saddled on Pool 19 in March 2005

  • We recaptured and released 196 lesser scaup that had been banded during this pilot study

  • No foreign recaptures


17 females implanted with ptts l.jpg
17 Females Implanted with PTTs Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • 14 females subsequently migrated from Pool 19

  • 2 females died on Pool 19 (3 and 27 days after release)

  • 1 female’s PTT failed on Pool 19


14 females migrated from pool 19 l.jpg
14 Females Migrated from Pool 19 Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

  • 12 (86%) took a northwesterly overland tract

  • 2 (14%) took a northerly tract

  • 11 females arrived on breeding sites

  • 3 females died in migration (40, 45 and 52 days after release)

  • 3 females died after arrival on breeding sites (78, 82 and 163 days after release)

  • 2 females’ PTTs failed after arrival on breeding sites

  • 6 females remain alive for monitoring during fall migration


14 females migrated from pool 1921 l.jpg
14 Females Migrated from Pool 19 Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring


11 females arrived on breeding sites l.jpg
11 Females Arrived on Breeding Sites Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring


Bluebill tracker on du website l.jpg

Bluebill Tracker on DU Website: Corridors and Habitats Used, and Breeding and Wintering Area Affiliations of Female Lesser Scaup Stopping-over on Pool 19 of the Mississippi River in Spring

http://www.ducks.org/scaupstudy


ad