New paper published on the effects of birdwatchers’ playback

15 10 2013

Our paper on how birdwatchers’ audio playback affects the behavior of birds was just published in PLOS ONE. Birdwatchers benefit conservation by supporting ecotourism, but they may have negative effects on the ecosystems they visit. One potentially negative impact comes from the use of recorded vocalizations to attract species of interest. Despite the importance of this issue, the effects of birdwatchers’ playback have not yet been investigated in a peer-reviewed study. We tested for the effects of birdwatchers’ playback on the vocal behavior of Plain-tailed Wrens and Rufous Antpittas in Ecuador. We found that both species produced more vocalizations after playback, but wrens essentially stopped responding after 12 days of repeated playback. Increased vocalizations after playback could be interpreted as a negative effect of playback if birds expend energy, become stressed, or divert time from other activities. In contrast, the habituation we documented suggests that frequent, regular birdwatchers’ playback may have minor effects on wren behavior.

Check out the media coverage of this article here:

Front page of the Wall Street Journal here and here.

http://conservationmagazine.org/2013/10/are-birdwatching-playbacks-bad-for-birds/

http://www.audubonmagazine.org/articles/birds/play-song-hurt-bird?page=show

http://www.futurity.org/birdwatcher-tactic-zap-birds-energy/

http://earthsky.org/earth/birding-by-birdsong-recordings-harms-birds

http://www.sciencedaily.com/releases/2013/10/131016112817.htm





News

17 06 2013

New paper on migration timing in Asian birds accepted for publication in Climate Research. In this study we found delayed autumn arrival in two long-distance migrants, Japanese Sparrowhawk Accipiter gularis, and Curlew Sandpiper Calidris ferruginea in Singapore. These phenological shifts probably resulted from climate change and could affect the timing of other events in the species’ annual cycles.








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