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Although the Sunda zebra finch was described first, the Australian zebra finch is the far more famous member of the genus, due to its status as a popular pet as well as a model organism for the wider study of birds. [11] The Australian zebra finch is used worldwide in several research fields (e.g. neurobiology, physiology, behaviour, ecology ...
In one experimental population of zebra finches, there was increased singing activity by the male after breeding. [9] This increase is positively correlated with the partner's reproductive investment. The female finches were bred in cages with two subsequent males that differed with varying amounts of song output.
The zebra finch genome was the second bird genome to be sequenced, in 2008, after that of the chicken. [32] The Australian zebra finch uses an acoustic signal to communicate to embryos. It gives an incubation call to its eggs when the weather is hot—above 26 °C (79 °F)—and when the end of their incubation period is near.
Female birds are able to produce more of a certain gender of birds that are more likely to survive under extreme conditions. In birds, the females' egg determines the gender of the offspring, not the male's sperm. In zebra finches, a study showed the effect of food on gender ratio production. For females, egg production is a metabolically ...
Zebra Finch (Taeniopygia guttata) at the Essehof Zoo in Germany. Only male zebra finches sing. [4] Each finch has an individual song. [4] Between the ages of 25 and 90 days old, young zebra finches learn to sing by copying the songs of adults, and sometimes by copying the songs of other juveniles.
Extra-pair copulation is common in birds. [29] For example, zebra finches, although socially monogamous, are not sexually monogamous and hence do engage in extra-pair courtship and attempts at copulation. [30] In a laboratory study, female zebra finches copulated over several days, many times with one male and only once with another male.
[2] [22] When male and female European starlings are trained to recognize conspecific song, there is an associated change in the response of CMM neurons, [28] and female zebra finches experience a reduced ability to discriminate between conspecific and heterospecific song following lesions to the region. [29]
The term comes from the Greek γυνή (gynē) 'female', ἀνήρ (anēr) 'male', and μορφή (morphē) 'form', and is used mainly in the field of entomology. Gynandromorphism is most frequently recognized in organisms that have strong sexual dimorphism such as certain butterflies, spiders, and birds, but has been recognized in numerous ...