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Breeding waterbirds in relation to artificial pond attributes: implications for the design of irrigation facilities.

机译:与人工池塘特性有关的水鸟繁殖:对灌溉设施设计的影响。

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摘要

The growth of inter-basin water transfers and the development of new irrigation facilities in southeastern Spain are responsible for a variety of ecological impacts. In spite of this, the construction of artificial ponds to keep water for intensive agriculture may also provide new habitats for breeding waterbirds. We counted waterbirds during the breeding season in artificial ponds that had been built up using different materials and measured their abiotic and biotic attributes. We found that ponds were used as breeding and foraging habitat by 22 different waterbird species and breeding numbers of a few of them seemed to be larger in these artificial facilities than in nearby natural and semi-natural wetlands. Abundance and richness of breeding waterbirds was influenced by construction materials. Ponds constructed with low density polyethylene and covered with sand and stones held more species and their numbers were higher than those constructed with other plastic materials. The presence of emergent and submerged vegetation as well as abiotic attributes, such as pond size, accounted for most of the deviance when modelling richness and species abundance.
机译:流域间水的转移以及西班牙东南部新灌溉设施的发展,对生态产生了各种影响。尽管如此,建造人工池塘以保持集约化农业用水也可能为繁殖水鸟提供新的栖息地。我们在繁殖季节的人工池塘中对水鸟进行了计数,这些人工池塘使用不同的材料建造而成,并测量了它们的非生物和生物属性。我们发现,池塘被22种不同的水鸟物种用作繁殖和觅食的栖息地,在这些人工设施中,其中一些池塘的繁殖数量似乎比附近的自然和半自然湿地更大。建筑材料影响了繁殖水鸟的丰度和丰富度。用低密度聚乙烯建造并覆盖有沙子和石头的池塘拥有更多种类,其数量比用其他塑料建造的池塘更高。建模丰富度和物种丰度时,出现偏差的大部分原因是存在新兴和淹没的植被以及非生物属性(例如池塘大小)。

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