Campos Zilca, Mourão Guilherme, Magnusson William E
Embrapa Pantanal, Corumbá, Mato Grosso do Sul, Brazil.
Instituto Nacional de Pesquisa da Amazônia, Manaus, Amazonas, Brazil.
PLoS One. 2017 Nov 27;12(11):e0188508. doi: 10.1371/journal.pone.0188508. eCollection 2017.
Run-of-the-river hydroelectric dams cause changes in seasonal inundation of the floodplains, and this may cause displacement of semi-aquatic vertebrates present before dam construction. This study evaluated the movement of crocodilians before and after the filling of the Santo Antônio hydroelectric reservoir on the Madeira River in the Brazilian Amazon, which occurred in November 2011. We radio-tracked four adult male Paleosuchus palpebrosus and four adult male Paleosuchus trigonatus before and after the formation of the reservoir between 2011 and 2013. The home ranges of the P. palpebrosus varied from < 1 km2 to 91 km2 and the home ranges of the P. trigonatus varied from < 1km2 to 5 km2. The species responded differently to time since filling and water level in weekly movement and home range. However, overall the dam appears to have had little effect on the use of space by the individuals that were present before dam construction.
径流式水电站大坝会导致洪泛区季节性淹没情况发生变化，这可能会使大坝建设前就已存在的半水生脊椎动物迁移。本研究评估了巴西亚马逊地区马德拉河上圣安东尼奥水电站水库在2011年11月蓄水前后鳄鱼的活动情况。我们在2011年至2013年水库形成前后，用无线电跟踪了4只成年雄性眼斑古鳄和4只成年雄性三角古鳄。眼斑古鳄的活动范围从小于1平方公里到91平方公里不等，三角古鳄的活动范围从小于1平方公里到5平方公里不等。这两个物种在每周的活动和活动范围内，对蓄水后的时间和水位的反应有所不同。然而，总体而言，大坝似乎对大坝建设前就已存在的个体的空间利用影响不大。
