HOWISON RA, HOOIJMEIJER JCEW & PIERSMA T (2019) The Black-tailed Godwit Limosa limosa limosa as an indicator of changes in land use in the Sahel. LIMOSA 92 (3): 154-163.
Afro-Palearctic migratory birds are the most rapidly declining
group of European breeding birds. Millions of these migrants,
amongst which Black-tailed Godwits, seem to depend on
freshwater wetlands in sub-Saharan Africa during boreal
winters. However, these wetlands are undergoing massive
changes due to land conversion to agriculture. Agriculturally
used wetlands, such as rice fields, could potentially provide
alternative habitat but little is known about Godwit habitat
usage in this region in contrast to the extensively studied
European breeding range. Distinguishing between both
natural and agricultural African wetlands, we constructed
novel spatiotemporal response models using remote
sensing and ground surveys. We found that Godwits exhibit
high fidelity to a narrow range of environmental conditions
and avoid landscapes with intensified agriculture across the
whole western Sahel. We recommend that future land-use
planning should strive to conserve a functional network of
wetland ecosystems, benefitting sustainable agriculture
whilst providing essential habitat for bird species that
depend on this habitat.
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