MSc by Asja Bernd: “Mind the Gap: A Global Analysis of Grassland Fragmentation using MODIS Land Cover Data”

MSc by Asja Bernd: “Mind the Gap: A Global Analysis of Grassland Fragmentation using MODIS Land Cover Data”

April 15, 2015

AsjaBernd_MSc_GlobalChangeEcology_org_2015_resizedeast_africa_af_areaThe MSc thesis by Asja Bernd titled “Mind the Gap: A Global Analysis of Grassland Fragmentation using MODIS Land Cover Data” is handed in. Very interesting results on global grassland fragmentation. Read the abstract:

Around the world, grassland and savannah ecosystems are under intense anthropogenic use, yet research has not given them much attention. One significant threat is fragmentation, reducing habitat connectivity and hindering species dispersal. Using MODIS land cover data from 2012, combined with infrastructure data derived from VMAP0 and OpenStreetMap, I assessed the fragmentation of grasslands on a global scale. The metrics applied were patch size, distance to the euclidean nearest neighbour and number of neighbours per patch. To quantify the contribution of human pressure to fragmentation, the results were correlated with the Human Influence Index and human population density. For subsets, selected from the Global 200 Ecoregions, I analysed land cover data from 2001 and 2012 to determine
trends over time. Globally, grasslands are highly fragmented by infrastructure, which reduced patch size by more than 50 %, and significantly increased isolation. Human pressure seems to act as a driver of fragmentation, diminishing patch size and the number of neighbours, while increasing the distance to neighbours. For the subsets, results varied, but two of three metrics indicated an increase in fragmentation between 2001 and 2012. In the face of declining migrations of terrestrial mammals and increasing human pressure, a better understanding of the effects of fragmentation is needed to develop adequate management and protection strategies.

Supervisor: Prof. Neil Burgess and Dr. Martin Wegmann

you may also like:

Our PhD Wall is Growing — and So Is Our Research Family!

Our PhD Wall is Growing — and So Is Our Research Family!

It’s been a remarkable year for our research team! The PhD Wall of Fame, showcasing all past and current doctoral researchers, has officially reached its limits — and we’ve had to expand it to make room for even more success stories. So far six PhD defenses have taken...

🎉 A Sweet Surprise for a Special Birthday!

🎉 A Sweet Surprise for a Special Birthday!

At our department, we not only work hard together — we also celebrate the milestones that make our team so special. This week, we had the joy of surprising our wonderful secretary Tine Linge on her 60th birthday! Early in the morning, colleagues gathered to prepare a...

Contribution at SilviLaser Conference in Quebec

Contribution at SilviLaser Conference in Quebec

At SilviLaser 2025 in Québec City, PhD candidate Julia Rieder (EORC, University of Würzburg and staff member of EO4CAM) presented her work on "European Beech under Drought: Effects of Topography, Competition and Soil Water Availability." Her study uses LiDAR to reveal...

EORC at Remote Sensing Symposium in Darmstadt

EORC at Remote Sensing Symposium in Darmstadt

On 2 October 2025, Dr. John Friesen and Dr. Julian Fäth from the Earth Observation Research Cluster (EORC) at the University of Würzburg and staff members of EO4CAM took part in the symposium "Vom Orbit zur Entscheidung: Satellitenfernerkundung in der...

New Team Member at the EORC: Sonja Mass

New Team Member at the EORC: Sonja Mass

Sonja Maas joined the Earth Observation Research Cluster (EORC) in October 2025 as a research assistant for the EO4CAM project. After finishing her bachelor's degree in forestry, Sonja Maas enrolled in the EAGLE M.Sc. program at the University of Würzburg, where she...

EAGLE MSc Student Isabella Metz Wins Prestigious IFHS Student Award

EAGLE MSc Student Isabella Metz Wins Prestigious IFHS Student Award

We are delighted to share the exciting news that our MSc student Isabella Metz has been awarded the 2025 International Federation of Hydrographic Societies (IFHS) Student Award for her outstanding research on: “Analysis of Uncertainties for Error Detection and...