Use of radio-telemetry to test for investigator effects on nesting mallards, Anas platyrhynchos / Terri D. Thorn, Robert B. Emery, David W. Howerter, James H. Devries, and Brian L. Joynt.
Material type:
TextSeries: Canadian Field Naturalist. 119(4) 541-545 Publication details: 2005.Description: 28 cmOnline resources: Summary: We examined the effects of investigator ,Klivity on hatching rates of rad io-marked wi ld fema lc Mall ards (AlIlI.\' plalyrhYl1chM).
and evaluatcd the efficacy of radio-telemctry to minimize nest disturbance. characterize vegetation fl\ nest sites. and mark nests
for latcr relocation. Differences in hatching rates between bi rds that were flushcd onec (experimental) and those never Ru shed
(control) approached significance (P = 0.086 ). However, hatching rates did not diO'cr (P = 0.588) between the two groups
when nests where investigator acti vi ty cau sed abandonment (3IYY() of experimental nests) WCfC removed from analysis. If the nest
remained acti vc. nushing the bird lind vi!. iling the nest once did nOI appear to im.:reasc the li kelihood of the nest bei ng depredated.
We were able to locale 92% of radio-telemetry marked nests (col1lrol) after the female waS no longer tendi ng the nest.
Rad io-telemctry provides a techn ique 10 collect relatively unbiased nesting data for Ma ll ard~ wilhOut distu rbing the female.
| Item type | Current library | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Electronic Journal
|
IWWR Supported Research | Non-fiction | Available | 16766 |
Includes bibliographical references (pages 544-545).
We examined the effects of investigator ,Klivity on hatching rates of rad io-marked wi ld fema lc Mall ards (AlIlI.\' plalyrhYl1chM).
and evaluatcd the efficacy of radio-telemctry to minimize nest disturbance. characterize vegetation fl\ nest sites. and mark nests
for latcr relocation. Differences in hatching rates between bi rds that were flushcd onec (experimental) and those never Ru shed
(control) approached significance (P = 0.086 ). However, hatching rates did not diO'cr (P = 0.588) between the two groups
when nests where investigator acti vi ty cau sed abandonment (3IYY() of experimental nests) WCfC removed from analysis. If the nest
remained acti vc. nushing the bird lind vi!. iling the nest once did nOI appear to im.:reasc the li kelihood of the nest bei ng depredated.
We were able to locale 92% of radio-telemetry marked nests (col1lrol) after the female waS no longer tendi ng the nest.
Rad io-telemctry provides a techn ique 10 collect relatively unbiased nesting data for Ma ll ard~ wilhOut distu rbing the female.