Author: Martin Wegmann

new article: Free and open-access satellite data are key to biodiversity conservation

Our new article just got published in Biological Conservation. It is based on various workshop outcomes organized by NASA/WCS, CEOS Biodiversity and others in the past 2 years. The free and open access policy for space borne earth observation is crucial for global biodiversity research and conservation.   Satellite remote sensing is an important tool for monitoring the status of biodiversity and associated environmental parameters, including certain elements of habitats. However, satellite data are currently underused within the biodiversity research and conservation communities. Three factors have significant impact on the utility of remote sensing data for tracking and understanding biodiversity change. They are its continuity, affordability, and access. Data continuity relates to the maintenance of long-term satellite data products. Such products promote knowledge of how biodiversity has changed over time and why. Data affordability arises from the cost of the imagery. New data policies promoting free and open access to government satellite imagery are expanding the use of certain imagery but the number of free and open data sets remains too limited. Data access addresses the ability of conservation biologists and biodiversity researchers to discover, retrieve, manipulate, and extract value from satellite imagery as well as link it with other types of information. Tools are rapidly improving access. Still, more cross-community interactions are necessary to strengthen ties between the biodiversity and remote sensing communities. W. Turner, C. Rondinini, N....

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new article: forest mapping in South-East Asia

our new article “Mapping threatened dry deciduousdipterocarpforest in South-east Asia for conservation management” by Christian Wohlfart, Martin Wegmann and Peter Leimgruber got just published. This article was a result of Christians MSc thesis which was conducted in cooperation with the Smithsonian Conservation Biology Institute (SCBI) within the Global Change Ecology MSc. study program. This study is highly valuable for ongoing research projects in the region and Peter is using it for explaining animal distributions. Habitat loss is the primary reason for species extinction, making habitat conservation a critical strategy for maintaining global biodiversity. Major habitat types , such as lowland tropical evergreen forests or mangrove forests, are already wellrepresented in many conservation priorities, while others are underrepresented. This is particularly true for dry deciduous dipterocarp forests (DDF), a key forest type in Asia that extends from the tropical to the subtropical regions in South-eastAsia (SE Asia), where high temperatures and pronounced seasonal precipitation patterns are predominant. DDF are a unique forest ecosystem type harboring a wide range of important and endemic species and need to be adequately represented in global biodiversity conservation strategies. One of the greatest challenges in DDF conservation is the lack of detailed and accurate maps of their distribution due to inaccurate open-canopy seasonal forest mapping methods. Conventional land cover maps therefore tend to perform inadequately with DDF. Our study accurately delineates DDF on a continental...

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new MSc: Asja Bernd

Asja Bernd started her MSc on ” A Global Analysis of Grassland Fragmentation” supervised by Neil Burgess (UNEP) and Martin Wegmann. She will use globally available land cover data sets and compute a variety of spatial metrics to derive the fragmentation pattern of grasslands. Methods available in R and GRASS will be applied to allow a semi-automatic global analysis. Asja is a student in the Global Change Ecology MSc program and well trained in journalism as well as natural...

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new BSc student: Sophia Wiesböck

Sophia Wiesböck will do her BSc thesis on the importance of fCover and Lidar data to explain home range sizes of red deer in the Nationalpark Bavarian Forest. Sophia will compute fCover on different spatial resolutions using different data sets and make it comparable with Lidar data. This will allow us to analyse the explanatory power of these data sets for home ranges of different red deer individuals in the Nationalpark. This thesis is supervised by Benjamin Leutner, Mirjana Bevanda and Martin Wegmann in close cooperation with the science department of the Nationalpark, Jörg...

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new MSc: Sarah Malec

We welcome Sarah Sophia Malec as new MSc student. Her thesis in done in close collaboration with DLR-EOC (Dr. Derek Rogge & Dr. Uta Heiden) on “Assessment of Soil degradation in Costa Rica using reflectance hyperspectral and simulated EnMAP imagery”. Sarah will work with hyperspectral imagery from Costa Rica and use spatial statistical models to analyse soil degradation. Sarah is a Global Change Ecology student and trained extensively in remote sensing, GIS, spatial modelling in the context of ecology, global change and its political implications. The first supervisor is Martin Wegmann, the second on Thomas...

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the Remote Sensing Department
at the University of Würzburg
Institute of Geography and Geology
Oswald Külpe Weg 86
97074 Würzburg

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