Impact of urbanization and gardening practices on common butterfly communities in France
Impact of urbanization and gardening practices on common butterfly communities in France
复制标题
城市化和园艺实践对法国常见蝴蝶群落的影响
作者：
B. Fontaine;B. Bergerot;I. Le Viol;R. Julliard
摘要我们调查了城市景观和园艺实践对法国各地常见蝴蝶群落的物种丰富度和群落总丰度的相互影响，使用全国范围内的监测计划的数据。我们发现，城市化对蝴蝶的丰富度和丰度有很强的负面影响，但在局部范围内，这种影响可以通过有利于花蜜提供的园艺实践来减轻。我们发现这些景观和局部规模效应之间几乎没有相互作用，这表明无论周围城市化水平如何，对蝴蝶友好的园艺实践都是有效的。我们进一步强调，受城市化负面影响最大的物种对园艺实践最敏感：因此，花园管理可以部分抵消城市化对蝴蝶群落的有害影响。这对公园管理者和私人园丁来说是一个强烈的信息，因为当整体景观在很大程度上不适合时，花园可能会成为蝴蝶的潜在避难所。
Abstract We investigated the interacting impacts of urban landscape and gardening practices on the species richness and total abundance of communities of common butterfly communities across France, using data from a nationwide monitoring scheme. We show that urbanization has a strong negative impact on butterfly richness and abundance but that at a local scale, such impact could be mitigated by gardening practices favoring nectar offer. We found few interactions among these landscape and local scale effects, indicating that butterfly‐friendly gardening practices are efficient whatever the level of surrounding urbanization. We further highlight that species being the most negatively affected by urbanization are the most sensitive to gardening practices: Garden management can thus partly counterbalance the deleterious effect of urbanization for butterfly communities. This holds a strong message for park managers and private gardeners, as gardens may act as potential refuge for butterflies when the overall landscape is largely unsuitable.