Webpages tagged with «elevational gradient»

Published Feb. 7, 2013 7:45 AM

This project is investigating the reproductive response of Carabid beetles to changes in their environment's temperature. Some of these species have adapted to cold climates by slowing down their maturation and changing the timing of their reproduction. We now wish to know if these populations will be able to do the oposite in response to warming temperaters. The results may be used to make predictions about the implications of global warming on future distributions of these insects.

 

Published Feb. 6, 2013 3:28 PM

Plant reproductive success is depending on temperature and climate during growth season, pollinator availibility and visitation rate, and interactions among plants, e.g. competition for resources and facilitated pollinator attraction. Plants in alpine regions face even larger climatic constraints and may also suffer from pollination limitation because of decrease in available pollinators with altitude. By including abiotic conditions, mutualistic interactions (pollination) and population qualities in elevational gradient consisting of 21 populations of the obligate out-crossing, lateflowering species Leontodon autumnalis var. taraxaci (Mountain Hawkweed) I wish to find out which predictors explain the observed variance in reproductive success. The fieldwork was performed at southfacing slopes of Sandalsnut and Kvanjolnut, Finse, Ulvik municipality – Norway.