Data from: Sleepless in town – drivers of the temporal shift in dawn song in urban European Blackbirds

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关键词：

conservation;Passeriformes;urbanisation;morning chorus;urban ecology;circadian rhythm;nightscape;Behavior;vocal communication;habitat fragmentation;birdsong;Turdus merula

DOI：

doi:10.5061/dryad.vg75p

摘要：

s, we also found differences in the spatial autocorrelation of dawn song onset showing a much higher variability in noisy city areas than in rural parks

Data from: Social facilitation is a better predictor of frog reproductive activity than environmental factors

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关键词：

calling activity;precipitation;chorus size;Hypsiboas rosenbergi;lunar illumination;temperature;Lunar cycle

DOI：

doi:10.5061/dryad.r10d0

摘要：

reproductive behavior—gathering in choruses and producing loud advertisement calls to attract females—generates a conspicuous social cue that may also facilitate

Data from: Experimental illumination of a forest: no effects of lights of different colours on the onset of the dawn chorus in songbirds

负责人：

Da Silva, Arnaud

关键词：

experimental night lighting dawn singing songbirds LED light colour

DOI：

doi:10.5061/dryad.437t2

摘要：

irely dissociate effects of light pollution from other effects of urbanization. In addition, there are no studies in which the effects of different light colours

Data from: Playback of predator calls inhibits and delays dawn singing in a songbird community

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关键词：

extra-pair paternity;sexual signaling;songbird;perceived predation risk;dawn chorus;Fear

DOI：

doi:10.5061/dryad.fr3mb67

摘要：

Recent studies have demonstrated that experimental increases in perceived predation risk can substantially impair breeding behavior and reduce reproductive success. Perceived predation risk may also occur in the context of sexual signaling, with potential consequences for sexual selection. In songbirds, singing at dawn is an important sexual signal, but may also attract predators. Here, we report on two experiments designed to test whether perceived predation risk affects the occurrence and timing of dawn singing in a songbird community. In a pilot experiment, we broadcast predator playbacks intermittently across half a forest plot and non-predator playbacks across the other half throughout early spring. In the second experiment, we repeated the treatments in 16 independent, but smaller plots (8 with predator calls, 8 with non-predator calls). In the predator treatment, most species were less likely to sing at dawn (small, non-significant effects) and to start later if they did sing (significant for 2 species). Meta-analyses combining the data from both experiments showed an overall significant effect of the treatment on both the likelihood and timing of singing. Species that were less likely to sing also sang later if they did sing, corroborating that an increase in perceived predation risk was the common cause of the effects on both measures.

Data from: Crying wolf to a predator: deceptive vocal mimicry by a bird protecting young

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关键词：

alarm call anti-predator deception diversion display mimicry nest defence

DOI：

doi:10.5061/dryad.fh40b

摘要：

times its size and protect its offspring against attack. Our experiments revealed that brown thornbills (Acanthiza pusilla) mimic a chorus of other

Data from: Activity patterns at the Arctic Circle: nocturnal eagle owls and interspecific interactions during continuous midsummer daylight

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关键词：

interference competition;vocal activity;Predators;prey;Activity;avian apex predators;water vole;white-tailed eagle;Bubo bubo;Circadian rhythms;midnight sun;Haliaeetus albicilla;non-invasive;Arvicola amphibius;eagle owl

DOI：

doi:10.5061/dryad.11g3s9t

摘要：

peaked in the evening before a nocturnal peak in visual observations, when owls were active hunting, consistent with the hypothesis of a dusk chorus