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Great tits Parus major and blue tits Cyanistes caeruleus as indicators of agri-environmental habitat quality

机译：伟大的山雀帕鲁斯主要和蓝山雀Cyanistes caeruleus作为农业环境栖息地质量的指标

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This study examined relationships between habitat and breeding success for two common bird species, the great tit Parus major and blue tit Cyanistes caeruleus. The aim was to determine the potential of these species to act as indicators of food resource availability for birds in managed semi-natural habitats on farmland and thus as a measure of the effectiveness of specific management practices under agri-environment schemes (AES). Breeding success was recorded for four years (2007–2010) using 90 nestboxes on arable farmland in central England. Habitat parameters were derived from high spatial resolution airborne Light Detection and Ranging (LiDAR) and hyperspectral data.ududRelationships of breeding variables with a range of habitat variables, many of which were influenced by AES management, were evident for both species, despite strong interannual variation in breeding parameters. Relationships were strongest for models using habitat variables within a 100 m radius of the nest, compared to values of 50 and 200 m. Both species showed significant, positive relationships with the area and proximity of tree canopy and, for great tits especially, with hedgerow height and volume.ududTherefore, tits may act as indicators of the quality of local habitat, particularly within-hedge trees and hedgerows, managed under agri-environmental provision, and provide insight into the spatial arrangement of AES options at the field scale.udud
机译：这项研究检查了两种常见鸟类（大山雀Parus major和蓝山雀Cyanistes caeruleus）的栖息地与繁殖成功之间的关系。目的是确定这些物种作为农田中受管理的半自然生境中鸟类食物资源可利用性的指标的潜力，并以此作为衡量农业环境计划（AES）下特定管理措施的有效性的指标。在英格兰中部可耕地上使用90个巢箱记录了四年（2007-2010年）的育种成功。生境参数来自高空间分辨率的机载光探测与测距（LiDAR）和高光谱数据。繁殖参数年际变化很大。对于使用巢穴半径为100 m内的栖息地变量的模型，关系最强，而值分别为50和200 m。两种物种都与树冠的面积和邻近度，尤其是对大山雀而言，与树篱的高度和体积呈显着的正相关。和树篱，在农业环境条件下进行管理，并提供对田间规模的AES选项的空间安排的了解。 ud ud

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