Successful use of Alarm/Alert Call Playback to end Canada Goose Problems at an Ohio Business Park (Poster)
Bibliographic record
Abstract
Burgeoning continental resident Canada goose populations have led to increases in aircraft strikes. Once on or near airfields, geese have proven difficult to move and keep away. Playback of naturally recorded alarm and alert calls of the species was coupled with multiple harassment techniques to determine if this strategy would prove effective at removal of long-term resident geese from a 24-ha business park in Dayton, Ohio. The study began 26 February 2002, following territorial establishment by the geese, and continued until the last few geese had abandoned the property as of 14 May 2002. Most geese present were reusing nest territories from previous years, and thus strong nest-site fidelity made these perhaps the most difficult of all geese to remove in a nonlethal manner. Call playback used three “Goosebuster” units (Bird-X Corp. Inc., Chicago IL). Daily direct human harassment consisted of chasing geese on foot and placing objects such as owl decoys, sticks, or balloons in nests. Other harassment included sporadic use of two Chesapeake retrievers over 7 mornings, but this harassment was not considered essential to discourage return by geese. Reports of goose aggression toward and injury to employees fell from 32 and 2 cases, respectively, in 2001 to zero in 2002. Employee time spent in harassment fell from 3-4 hours/day at the start to under 15 minutes/day. Goose droppings/100 m of walks fell from a mean of 195.7 to 3.3 between 26 February and 24 March 2002, a 98% reduction (P < 0.01), and remained low thereafter. Twice daily cleaning of walks done prior to the study was deemed unnecessary by week 2 of the study, more than offsetting employee time in harassment activities. Continued alarm-call playback at random 10- to 20-minute settings appeared to help prevent return of resident geese or recolonization of the property by other geese. Goose use of the property dropped from 1600-1800 goose-hours/day before testing to fewer than 150 goose-hours/day by week 3 and to zero hours by May. Similar techniques may prove useful as nonlethal means to remove geese from areas on or near airports where they constitute a threat to air traffic.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.010 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".