Such modelling exploits relationships between species' occurrences and characteristic environmental conditions. The accuracy of resulting models is crucial if they are to improve our understanding of patterns in biological diversity and inform conservation decisions.
A new study by McPherson and Jetz in the journal Ecography demonstrates how some species’ distributions are better captured by these models than others' due to inherent differences in their ecological traits.
To estimate the level of uncertainty in model predictions, the authors have examined how species’ characteristics such as body size and diet affect model accuracy in 1329 African bird species. Distribution models are least accurate for migratory and wetland species and species with large geographic ranges. These findings illustrate the interaction between species' ecological attributes and their environmental requirements, a long-standing question in ecology.
From a practical standpoint, the study offers scientists, wildlife managers and policy-makers a rule of thumb for gauging the reliability of species distribution models when careful tests of model accuracy are hampered by lacking data. Moreover the study indicates that reasonable models of current distributions can be achieved for most species, which is excellent news for anyone using distribution models in conservation planning.
Davina Quarterman | alfa
Bioinvasion on the rise
15.02.2017 | Universität Konstanz
Litter Levels in the Depths of the Arctic are On the Rise
10.02.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport
Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...
The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...
Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...
Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".
Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...
13.02.2017 | Event News
10.02.2017 | Event News
09.02.2017 | Event News
20.02.2017 | Materials Sciences
20.02.2017 | Health and Medicine
20.02.2017 | Health and Medicine