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
Waste in the water – New purification techniques for healthier aquatic ecosystems
24.07.2018 | Eberhard Karls Universität Tübingen
Plenty of habitat for bears in Europe
24.07.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur
What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...
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