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Habitat use during spring migration: Remote sensing meets movement ecology

Kölzsch, Andrea and Leutner, Benjamin and Safi, Kamran and Wegmann, Martin and Dech, Stefan and Wikelski, Martin (2017) Habitat use during spring migration: Remote sensing meets movement ecology. 6th International Bio-Logging Science Symposium, 25.-29.9.2017, Konstanz, Germany.

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Official URL: http://www.bio-logging.net/SYMPOSIUM/Symposium/


Forage availability during spring migration is crucial for the survival and successful reproduction of many migratory species. With careful timing in relation to spring growth and small-scale selection of suitable food sites, large avian herbivory migrants are known to maximise foraging rate during spring. However, especially for Arctic breeders, the recent levels of climate and habitat change alter the conditions that they meet at their spring stopover and breeding sites. In the EO-MOVE project we examine the habitat use of greater white-fronted geese (Anser albifrons) along their spring migration route between central Europe and northern Russia. This species is known to be sensitive to land-use intensity, phenology and landscape configuration, which calls for the exploitation of high resolution tracking and remote sensing technologies. To characterise the movement of geese within their spring stopovers, we use over 150 highly resolved GPS tracks of individual adult geese from the years 2006-2017. Since 2014 we have additionally collected acceleration data to classify the animals' behaviour and energy expenditure. We select within-stopover GPS positions that are classified as flight or feeding and overlay the movements connecting different small-scale feeding sites with optical and SAR time series data (20Ã-20m) from the Sentinel 1 and 2 satellite missions using step selection functions. Habitat preference outcomes are then set into context with vegetation indices and compared between individuals, years and stopover sites. First results indicate that white-fronted geese generally select for highly green, low and young vegetation, but also that there are large differences between stopovers. We expect to reveal in detail how the birds select for suitable feeding sites in relation to availability and recent levels of habitat change, potentially allowing for site selection prediction, an important prerequisite for spatially or temporally targeted conservation schemes.

Item URL in elib:https://elib.dlr.de/116766/
Document Type:Conference or Workshop Item (Poster)
Title:Habitat use during spring migration: Remote sensing meets movement ecology
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Safi, Kamranmax planck institute for ornithologe, radolfzell, germanyUNSPECIFIEDUNSPECIFIED
Wikelski, Martinmax planck instituteUNSPECIFIEDUNSPECIFIED
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:movement ecology, GPS tracking, Sentinel 1, Sentinel 2
Event Title:6th International Bio-Logging Science Symposium
Event Location:Konstanz, Germany
Event Type:international Conference
Event Dates:25.-29.9.2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Geoscientific remote sensing and GIS methods
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center
German Remote Sensing Data Center > Leitungsbereich DFD
Deposited By: Wöhrl, Monika
Deposited On:14 Dec 2017 11:32
Last Modified:31 Jul 2019 20:14

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