Aouissi Hani Amir, Gasparini Julien, Belabed Adnène Ibrahim, Bouslama Zihad
Département de biologie, faculté des sciences, EcoSTAq, laboratoire d'écologie des systèmes terrestres et aquatiques, université Badji-Mokhtar, Annaba, Algeria.
Institut d'écologie et des sciences de l'environnement de Paris, Sorbonnes universités, UPMC, université Paris-6, UPEC, université Paris-7, CNRS, INRA, IRD, 75005 Paris, France.
C R Biol. 2017 Aug;340(8):394-400. doi: 10.1016/j.crvi.2017.07.002. Epub 2017 Aug 31.
Increasing urbanization is a major challenge in the context of global changes, because this environment is known to negatively impact biodiversity. It is therefore important to identify factors maintaining biodiversity in such areas. Here, we tested in 650 sites whether the greenspaces in urbanized area of Annaba (Algeria) has positive effects on avian species richness and abundances. Our results show that species detection (n=26) is more important during the breeding season as compared to the winter season, and that avian species richness is positively affected by the greenspaces. For most species, greenspaces impact positively their presence and abundances. Only the feral pigeon was less detected in greenspaces as compared to built-up areas. Our study therefore confirmed, for the first time in a Northern African city, that greenspaces significantly increase the species richness and abundances of birds, and shows that the season can profoundly affect such indicators.
在全球变化的背景下，城市化进程的加快是一项重大挑战，因为这种环境已知会对生物多样性产生负面影响。因此，识别维持此类地区生物多样性的因素非常重要。在此，我们在650个地点测试了安纳巴（阿尔及利亚）城市化地区的绿地对鸟类物种丰富度和数量是否具有积极影响。我们的结果表明，与冬季相比，繁殖季节的物种检测（n = 26）更为重要，并且鸟类物种丰富度受到绿地的积极影响。对于大多数物种而言，绿地对它们的存在和数量有积极影响。与建成区相比，只有野鸽在绿地中的被检测到的数量较少。因此，我们的研究首次在一个北非城市证实，绿地显著增加了鸟类的物种丰富度和数量，并表明季节会深刻影响这些指标。
