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temporal patterns of dengue epidemics:The case of recent outbreaks in Kaohsiung

Asian Pacific Journal of Tropical Medicine 2017年第3期10卷 275-279页

作者： Mattia Sanna Ying-Hen Hsieh Department of Public Health China Medical University Taichung Taiwan 40402 Center for Infectious Disease Education and Research China Medical UniversityTaichung Taiwan 40402

Objective:To investigate whether major dengue outbreaks in the last two decades in Kaohsiung follow a precise temporal ***:Government daily lab-confirmed dengue case data from three major dengue outbreaks occurring during the last two decades in Kaohsiung in2002,2014 and 2015,is utilized to compute the corresponding weekly cumulative percentage of total case *** divide each of the three time series data into two periods to examine the corresponding weekly cumulative percentages of case numbers for each ***’s correlation coefficient was calculated to compare quantitatively the similarity between the temporal patterns of these three ***:Three cutoff points produce the most interesting comparisons and the most different ***’s correlation coefficient indicates quantitative discrepancies in the similarity between temporal patterns of the three years when using different cutoff ***:temporal patterns in 2002 and 2014 are comparatively more similar in early *** 2015 outbreak started late in the year,but ended more like the outbreak in 2014,both with record-breaking number of *** retrospective analysis shows that the temporal dynamics of dengue outbreaks in Kaohsiung can strongly vary from one year to another,making it difficult to identify any common predictor.

关键词： Dengue Kaohsiung temporal pattern Cumulative percentage Pearson's correlation coefficient

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Elevational and temporal patterns of pollination success in distylous and homostylous buckwheats(Fagopyrum)in the Hengduan Mountains

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Plant Diversity 2024年第5期46卷 661-670页

作者： Ling-Yun Wu Shuang-Quan Huang Ze-Yu Tong Faculty of Resources and Environmental Science Hubei UniversityWuhan 430062China Institute of Evolution and Ecology School of Life SciencesCentral China Normal UniversityWuhan 430079China

Reproductive strategies of sexually dimorphic plants vary in response to the ***,we ask whether the sexual systems of Fagopyrum species(i.e.,selfing homostylous and out-crossing distylous)represent distinct adaptive strategies to increase reproductive success in changing alpine *** answer this question,we determined how spatial and temporal factors(e.g.,elevation and peak flowering time)affect reproductive success(i.e.,stigmatic pollen load)in nine wild Fagopyrum species(seven distylous and two homostylous)among 28 populations along an elevation gradient of 1299-3315 m in the Hengduan Mountains,southwestern *** also observed pollinators and conducted hundreds of hand pollinations to investigate inter/intra-morph compatibility,self-compatibility and pollen limitation in four Fagopyrum species(two distylous and two homostylous).We found that Fagopyrum species at higher elevation generally had bigger flowers and more stigmatic pollen loads;lateflowering individuals had smaller flowers and lower pollen *** pollen deposition was more variable in distylous species than in homostylous *** seed set was not pollenlimited in all species,we found that fruit set was much lower in distylous species,which rely on frequent pollinator visits,than in homostylous species capable of autonomous *** findings that pollination success increases at high elevations and decreases during the flowering season suggest that distylous and homostylous species have spatially and temporally distinct reproductive strategies related to environment-dependent pollinator activity.

关键词： Biodiversity hotspot Elevation gradient Fagopyrum Stigmatic pollen load temporal pattern

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