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Dharmalingam Mohandass,Jian-Li Zhao,Yong-Mei Xia,Mason J. Campbell,Qing-Jun Li 국립중앙과학관 2015 Journal of Asia-Pacific Biodiversity Vol.8 No.3
Recent herbarium-based phenology assessments of many plant species have found significant responses to global climate change over the previous century. In this study, we investigate how the flowering phenology of three alpine ginger Roscoea species responses to climate change over the century from 1913 to 2011, by comparing between herbarium-based phenology records and direct flowering observations. According to the observations, flowering onset of the three alpine ginger species occurred either 22 days earlier or was delayed by 8e30 days when comparing the mean peak flowering date between herbarium-based phenology records and direct flowering observations. It is likely that this significant change in flowering onset is due to increased annual minimum and maximum temperatures and mean annual temperature by about 0.053℃ per year. Our results also show that flowering time changes occurred due to an increasing winterespring minimum temperature and monsoon minimum temperature, suggesting that these Roscoea species respond greatly to climate warming resulting in changes on flowering times.
Diverse nectar robbers on Alpinia roxburghii Sweet (Zingiberaceae)
Xiaobao Deng,Wen Deng,Alice Catherine Hughes,Dharmalingam Mohandass 국립중앙과학관 2015 Journal of Asia-Pacific Biodiversity Vol.8 No.3
This study records for the first time three mammal species as nectar robbers on the ginger Alpinia roxburghii Sweet. We examined the behavior of nectar robbers and compared with earlier studies on a single plant species. We recorded seven species of nectar robbers: three squirrels, one bird, and three bees. Timing of robbing nectars were similar; however, robbing behavior differed among robbers. In particular, squirrels damaged the flower parts while robbing the nectar.