期刊
JOURNAL OF TROPICAL ECOLOGY
卷 17, 期 -, 页码 411-429出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0266467401001286
关键词
diversity; environmental factors; Geometroidea; Lepidoptera
类别
Geometroid moth abundance, species richness, weather and plant phenology were monitored monthly for 3 y in the lowland dipterocarp forest at Pasoh Forest Reserve, Negeri Sembilan in Malaysia. The intensity of tree flowering in the previous month (with mass events triggered in response to El Nino Southern Oscillations) was an important environmental factor positively correlated with the numbers of species and individuals of geometroid moths that emerge in any month. Abundance for geometroid moths was greater in months with high flowering and flushing in the previous month but low flowering in the month before that. Important weather parameters that influenced moth abundance were monthly rainfall, relative humidity and minimum temperature in previous months. High rainfall 3 mo previously led to all increase in moth abundance (perhaps by stimulating an increase in fresh plant material), whereas high rainfall and relative humidity thereafter served to decrease abundance, possibly by encouraging the spread and activity. of pathogens: all these factors impacted on early life-stage survivorship,. Similar trends were observed for individual geometroid families and subfamilies. The diversity measurement for the geometroid moths, ct from the log-series, was correlated more with weather parameters than with tree phenology.
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