웹2024년 6월 27일 · For this reason and given that most birds live and breed in the tropics (Gaston, 2000; Hawkins, Porter, & Diniz-filho, 2003; Valcu, Dale, & Kempenaers, 2012), it is important to explore variation in the level of sperm competition, directly or through its proxies, in nonpasserine tropical species to be able to formulate general rules of how sexual … 웹2024년 3월 28일 · Like an interpreter, the Sound Classifier helped us to discover something about zebra finch communication,” says Wolfgang Forstmeier. "That is the more remarkable, because zebra finches have been a model system for song learning for so long" adds Bart Kempenaers. "Just because we can't distinguish these dialects, doesn't mean they don't …
Causes and consequences of breeding dispersal and divorce in a …
웹2024년 11월 13일 · Bart Kempenaers Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany Contribution Investigation, Writing—review and editing Competing interests No competing interests declared "This ORCID iD identifies the author of this article:" 0000-0002-7505-5458. 웹2024년 3월 28일 · Culturally transmitted communication signals - such as human language or bird song - can change over time through cultural drift, and the resulting dialects may consequently enhance the separation of populations. However, the emergence of song dialects has been considered unlikely when songs are hig … homelight 11 blower
Bart KEMPENAERS Director PhD Max Planck Institute …
웹2015년 3월 17일 · March 17, 2015. Under the influence of artificial night lighting, four out of six studied songbird species started dawn and dusk singing earlier in the year. This was shown by scientists of the Max Planck Institute for Ornithology when they studied bird vocalizations from winter to spring in dark sites and in sites exposed to light pollution. 웹2012년 7월 21일 · This problem was investigated by Bart Kempenaers and colleagues from the Max Planck Institute for Ornithology in Seewiesen in five species of songbirds. They studied the effect of street lighting at the outskirts of … 웹2006년 7월 1일 · Drakes were direct descendants of five pairs of wild mallards [caught at Lake Starnberg (47°54′N, 11°18′E) and Lake Ammer (48°00′N, 11°08′E), Southern Germany]. All individuals used in this study were yearlings, hatched and raised in captivity (see Denk et al. 2005).Although reproductive inferiority of yearlings compared to older drakes has been … hindi comprehension for class 8