|
|
|
篇目详细内容 |
|
【篇名】 |
Identification of sympatric bat species by the echolocation calls |
|
【刊名】 |
Frontiers in Biology(Formerly known as Frontiers of Biology in China) |
|
【刊名缩写】 |
Front. Biol. |
|
【ISSN】 |
1674-7984 |
|
【EISSN】 |
1674-7992 |
|
【DOI】 |
10.1007/s11515-008-0017-y |
|
【出版社】 |
Higher Education Press and Springer-Verlag |
|
【出版年】 |
2008 |
|
【卷期】 |
3
卷2期 |
|
【页码】 |
227-231
页,共
5
页 |
|
【作者】 |
SUN Keping;
FENG Jiang;
JIN Longru;
LIU Ying;
JIANG Yunlei;
|
|
【关键词】 |
bats; echolocation call; identification of species; discriminant analysis |
【摘要】 |
|
One hundred and thirty-eight echolocation calls of 63 free-flying individuals of five bat species (Rhinolophus ferrumequinum, Myotis formosus, Myotis ikonnikovi, Myotis daubentoni and Murina leucogaster) were recorded (by ultrasonic bat detector (D980)) in Zhi’an village of Jilin Province, China. According to the frequency-time spectra, these calls were categorized into two types: FM/CF (constant frequency) / FM (R. ferrumequinum) and FM (frequency modulated) (M. formosus, M. ikonnikovi, M. daubentoni and M. leucogaster). Sonograms of the calls of R. ferrumequinum could easily be distinguished from those of the other four species. For the calls of the remaining four species, six echolocation call parameters, including starting frequency, ending frequency, peak frequency duration, longest inter-pulse interval and shortest inter-pulse interval, were examined by stepwise discriminant analysis. The results show that 84.1% of calls were correctly classified, which indicates that these parameters of echolocation calls play an important role in identifying bat species. These parameters can be used to test the accuracy of general predictions based on bats’ morphology in the same forest and can provide essential information for assessing patterns of bat habitat use. |
|
