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Modelling unicorns to improve our capacity to accurately model real species

Modelled distribution of a unicorn whose dispersal was limited to Great Britain and Ireland. Illustration SNGT.

In 1990, Stuart H. Hurlbert analysed the “Spatial Distribution of...

Geographical distribution, climatic variability and thermo-tolerance of Chagas disease vectors

A fifth-instar nymph of the blood-sucking bug Triatoma infestans placed inside the respirometry chamber (photograph by Diana Martinez Llaser).

by Gerardo J. de la Vega and Pablo E. Schilman

Several climate-based hypotheses have been proposed to...

Do ecological contrasts explain the effectiveness of conservation management?

Photo of common linnet (Linaria cannabina) photographed at Sallandse Heuvelrug, the Netherlands by J. Swiebe (waarneming.nl).

by Martijn Hammers

Some conservation programs are more successful than others, but we still have little understanding why...

How can different species distribution models be combined?

Favourability models combining different factors in mainland Spain of four representative species: Chioglossa lusitanica, Iberolacerta cyreni, Pterocles orientalis, and Galemys pyrenaicus (favourability ranges from 0 to 1). Five alternative methodological...

Stressful climate reduces species richness, but not the diversity of tree strategies

Figure 1. Shifts in tree strategies along precipitation and temperature gradient in western USA. From left to right: Saguaro cacti (Carnegiea gigantea) in Arizona desert; cottonwoods (Populus fremontii) in Escalante (Utah);  redwoods (Sequoia...