Dynamic Movement Patterns of Florida Gar within a Fluctuating Hydroscape

摘要: Fish with perennial life histories that inhabit ecosystems where water availability fluctuates seasonally must have movement behavior accommodates this environmental change. Landscape structure is expected to influence magnitude and direction of these movements by affecting the distribution in space time. Predicting effects climate change restoring historical hydrology Florida Everglades, a large wetland undergoes regular contraction ecosystem size during seasonal droughts, requires information on how fish affected spatiotemporal patterns availability. We used radio telemetry quantify spatial scale displacement Gar (Lepisosteus platyrhinchus) from focal areas Everglades differ their position relative drought refuges. Displacement distances increased both rising dropping levels compared periods stable depth, but more d...