Figure 1. The eastern flank of Mont St-Joseph, in Parc national du Mont Mégantic, Québec. This photo was taken in spring, while deciduous trees (mostly sugar maple) were just leafing out (light green at low elevation). The dark green at high elevation is boreal forest,...
Figure 1. Mt Wilhelm (4509 m a.s.l.; the highest peak of Papua New Guinea) hosts one the most complete and largely undisturbed forest elevational gradient in tropics. Here I took photograph of the upper part of the gradient, from 2000 m to the summit of Mt Wilhelm with its...
Figure caption: Polar bears travel and hunt on the sea ice, a platform that can drift many kilometers per day. To understand their home range, and that of other marine species, we need to account for drift. Photo by Andrew Derocher
Dicerca berolinensis favors sun exposed dead wood of European beech.
By Joerg Muller
Saproxylic insects are strongly influenced by temperature but also require specific dead wood features, and thus interaction between the two factors is likely....
Remote coral reefs of the Pacific Ocean. Remote, uninhabited reefs such as these give us a glimpse into the natural structuring forces of ecological communities in a world without humans and highlight the important fact that not all coral reefs look the same. Natural...
A metapopulation model had three stages: seeds, rosettes, and juveniles. The model included vital rates of Carlina vulgaris individuals when grown in their home territory. To incorporate responses of life history traits to climate change, these rates were altered...
Large scale pattern of coastal currents for the east coast of North America. Currents are represented as the annual average of current speed (m/s) in grids of 100km, the data was extracted from Lumpkin and Garrafo 2005...
An Adélie penguin look around for an easy access to the sea from Pétrels Island. Photo by Timothée Poupart. by Yan Ropert-Coudert Complete breeding failure of a large number of individuals is a rare event in Nature. So when the 34 000 Adélie penguins from the...
The fairy circles of Namibia are currently subject to a lively debate on their origin, and they provide a textbook example of how progress is made in science. Hypotheses that were commonly accepted are challenged by a set of new observations that favor
In a warmer world, spring will be earlier. The increase in temperature is not the same across the globe, however, and the highest rate of warming is found at high latitudes. It is therefore not very surprising that,...
