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Emily Finch Emily Finch

Emily Finch - PowerPoint Presentation

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Emily Finch - PPT Presentation

Department of Biology Calvin College Turn down the noise Temporal modification of songbird singing behavior in the presence of punctuated noise events Hypothesis and Prediction If temporal modification is an important adaptation for persistence in anthropogenic noise we predict that ID: 505013

conditions gaps playback noise gaps conditions noise playback sites control point species minute data forest week post focus experimental methods weeks procedure

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Slide1

Emily Finch

Department of BiologyCalvin College

Turn down the noise:

Temporal

modification of songbird singing behavior in the presence of punctuated noise eventsSlide2

Hypothesis and PredictionIf temporal modification is an important adaptation for persistence in anthropogenic noise, we predict that songbirds will sing more often and with greater regularity during quiet periods of time embedded within experimentally elevated noise than  during similar times intervals under control (non-noise) conditions.

 Slide3

Objectives Determine the effects of road noise on bird singing patternsPossibility of adaptation

Determine if songbirds will adapt to sing more in quiet gapsModify behavior to sing more frequently during 1 and 5 minute gaps in noise compared to equivalent gaps in quiet conditionsOr delay vocalization until post-playback conditionsSlide4

Methods6 weeks of data collectionSlide5

Methods6 weeks of data collection2 experimental sites and 2 control sites per weekSlide6

Methods6 weeks of data collection2 experimental sites and 2 control sites per weekFocus on forest/forest edge speciesSlide7

Methods6 weeks of data collection2 experimental sites and 2 control sites per weekFocus on forest/forest edge species

3 to 4 days of experiment per weekPossibility of acclimationSlide8

Methods6 weeks of data collection2 experimental sites and 2 control sites per weekFocus on forest/forest edge species

3 to 4 days of experiment per weekEach site 350+ meters apartSlide9

Site layout

Speaker

Passive recorder

~50 meters

25 meters

Control has passive recorder, but no playback setupSlide10

Noise Playback

10 min pre

10 min post

5 min

1

min

RampSlide11

Daily ProcedurePoint countsSystem Test

Enter point countsAnalyze recordings, focus on the gaps

10 minutes

Top 20 forest species

Note distance

Check the unknown species

PurposeSlide12

Daily ProcedurePoint countsSystem Test

Enter point countsAnalyze recordings, focus on the gaps

Run sound playback and check speakers

Change out the batterySlide13

Daily ProcedurePoint countsSystem Test

Enter point countsAnalyze recordings, focus on the gaps

Species and distance

Other factors: wind, temperature, clouds, timeSlide14

Daily ProcedurePoint countsSystem Test

Enter point countsAnalyze recordings, focus on the gaps

Cut gaps

Count number of songs per speciesSlide15

Calculating the ResultsFinish data collection (1 week remaining)Count all 1 and 5 minute gaps and 10 minute post-playbackSlide16

Calculating the ResultsFinish data collection (1 week remaining)Count all 1 and 5 minute gaps and 10 minute post-playback

Then…Choose focal speciesIn the lead: REVI, AMRO, EAWP, TUTI, ACFL, COYECompare 1 and 5 minute gaps in control and experimental conditionsCalculate song rate in 10 minute post playbackSlide17

Possible OutcomesBirds sing more in silent windows during noise playback than during equivalent gaps under control conditions

Birds vocalize less in noisy conditions than in quiet conditionsUnder noisy conditions, birds will leave the areaAs time progresses, bird singing patterns change indicating that they are able to or not able to adjust to noisy conditionsSlide18

ConclusionThe information gathered from this study can help influence road construction. Bird adaptability can be used in conservation efforts when planning roadways