Assertion: alluvial fan's area | /r/HasProperty | velho et al.
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Source sentences:
text: Although attention has been given to invertebrate diversity in this area (Velho et al., 2001; Higuti and Takeda, 2002; Lansac-Toha et al., 2002), there are no published records about the ecology and distribution of ostracods in the alluvial valley of the upper Parana River.