00256nas a2200085   4500008004100000245002000041210002000061100002200081856006700103       2019                        eng d00aNoise pollution0 aNoise pollution1 aSlabbekoorn, Hans  uhttps://linkinghub.elsevier.com/retrieve/pii/S096098221930863202237nas a2200229   4500008004100000245010100041210006900142260001600211300001400227490000800241520150700249100003101756700001801787700002201805700002001827700001901847700002301866700002301889700002501912700001501937856005501952       2017                        eng d00aNegative impact of urban noise on sexual receptivity and clutch size in female domestic canaries0 aNegative impact of urban noise on sexual receptivity and clutch   cJan-11-2017  a843 - 8530 v1233 a<p>In oscines, male song stimulates female reproduction and females are known to adjust both their sexual preferences and their maternal investment according to song quality. Female domestic canaries are especially responsive to wide frequency bandwidth (4 kHz) male songs emitted with a high-repetition syllable rate and low minimal frequencies (1 kHz). We previously showed that low-frequency urban noise decreases female sexual responsiveness for these low-frequency songs (1&ndash;5 kHz) through auditory masking. Based on the differential allocation hypothesis, we predicted that urban noise exposure will equally affect female maternal investment. Using a crossover design, we broadcast low-frequency songs to females either in an overlapping noise condition or in an alternating noise condition. Females decreased both their sexual responsiveness and their clutch size in the overlapping noise treatment relative to the alternative noise treatment. No differences were found concerning egg size or egg composition (yolk and albumen mass, testosterone concentration). Due to our experimental design, we can exclude a general impact of noisy conditions and thereby provide evidence for a detrimental effect through masking on avian courtship and reproductive output. These results suggest that noisy conditions may also affect avian communication in outdoor conditions, which may partly explain field reports on noise-dependent breeding success and reduced breeding densities at noisy sites.</p>
1 aAunay, Guillaume, Huet des1 aGrenna, Marco1 aSlabbekoorn, Hans1 aNicolas, Pierre1 aNagle, Laurent1 aLeboucher, Gérard1 aMalacarne, Giorgio1 aDraganoiu, Tudor, I.1 aFusani, L.  uhttp://doi.wiley.com/10.1111/eth.2017.123.issue-1101803nas a2200145   4500008004100000022001400041245009400055210006900149260001600218300001600234490000800250520132600258100002201584856005101606       2004                        eng d  a0001-496600aHabitat-dependent ambient noise: Consistent spectral profiles in two African forest types0 aHabitatdependent ambient noise Consistent spectral profiles in t  cJan-12-2004  a3727 - 37330 v1163 a<p>Many animal species use acoustic signals to attract mates, to defend territories, or to convey information that may contribute to their fitness in other ways. However, the natural environment is usually filled with competing sounds. Therefore, if ambient noise conditions are relatively constant, acoustic interference can drive evolutionary changes in animal signals. Furthermore, masking noise may cause acoustic divergence between populations of the same species if noise conditions differ consistently among habitats. In this study, ambient noise was sampled in a replicate set of sites in two habitat types in Cameroon: contiguous rainforest and ecotone forest patches north of the rainforest. The noise characteristics of the two forest types show significant and consistent differences. Multiple samples taken at two rainforest sites in different seasons vary little and remain distinct from those in ecotone forest. The rainforest recordings show many distinctive frequency bands, with a general increase in amplitude from low to high frequencies. Ecotone forest only shows a distinctive high-frequency band at some parts of the day. Habitat-dependent abiotic and biotic sound sources and to some extent habitat-dependent sound transmission are the likely causes of these habitat-dependent noise spectra.</p>
1 aSlabbekoorn, Hans  uhttp://asa.scitation.org/doi/10.1121/1.181112100442nam a2200157   4500008004100000020001800041022001300059245003600072210003600108260001300144300001400157490000700171100001800178700002200196856006600218       2005                        eng d  a9780120045358  a0065345400aAcoustic Communication in Noise0 aAcoustic Communication in Noise  bElsevier  a151 - 2090 v351 aBrumm, Henrik1 aSlabbekoorn, Hans  uhttp://linkinghub.elsevier.com/retrieve/pii/S0065345405350042