Universidade de Aveiro, Campus Universitário de Santiago, 38 10-193, Aveiro, Portugal.
Department of Biology and CESAM Centre for Environmental and Marine Studies, University of Aveiro, 3810-193, Aveiro, Portugal.
Environ Monit Assess. 2018 Sep 15;190(10):592. doi: 10.1007/s10661-018-6967-x.
This work was developed in Barrinha de Mira Coastal Lagoon, Portugal. The lagoon belongs to the Natura 2000 network. Its main objectives were to monitor aquatic bird species before, during, and after a desorption intervention on this lagoon. Monitoring of waterfowl was carried out to evaluate the monthly variation of birds in Barrinha, in order to obtain useful information for region's management and planning, as well as for species preservation. In experimental design, it was decided to perform four counts per month in each pond (weekly), to evaluate the effect of increased monitoring effort in relation to previous years. The results revealed that the study area has a significant importance as a wintering zone for water birds. Some species have stable resident populations which, seasonally, see their numbers vary with migratory birds arrival and departure. Another purpose was to verify the influence of desorption intervention on the usual number of individuals by species. The results show that during and after intervention, there was a reduction of birds in the order of 89%, being more visible in the populations of Anas platyrhynchos and Fulica atra.
这项工作是在葡萄牙的巴林哈·德米拉沿海泻湖进行的。泻湖属于自然 2000 网络。其主要目标是在泻湖解吸干预之前、期间和之后监测水鸟物种。对水禽进行监测，以评估巴林哈每月鸟类的变化，为该地区的管理和规划以及物种保护提供有用的信息。在实验设计中，决定每月在每个池塘（每周）进行四次计数，以评估与前几年相比增加监测力度的效果。结果表明，研究区域对水禽的越冬区具有重要意义。一些物种有稳定的常驻种群，这些种群的数量随着候鸟的到来和离开而季节性变化。另一个目的是验证解吸干预对通常的个体数量的影响。结果表明，在干预期间和之后，鸟类数量减少了约 89%，在普通秋沙鸭和普通黑水鸡的种群中更为明显。
