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首页> 外文期刊>Air, Soil and Water Research >Impacts of Riparian Restoration on Vegetation and Avifauna on Private and Communal Lands in Northwest Mexico and Implications for Future Efforts
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Impacts of Riparian Restoration on Vegetation and Avifauna on Private and Communal Lands in Northwest Mexico and Implications for Future Efforts

机译：河岸恢复对墨西哥西北西北私营和公共土地植被和Avifauna的影响及对未来努力的影响

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Restoring and enhancing riparian vegetation on private and communal lands in Mexico is important for biodiversity conservation given the ecological significance of these areas and the scarcity of public protected areas. To enhance riparian vegetation and wildlife habitats and train local people in restoration techniques, we implemented restoration and outreach efforts on private and communal lands in the Sky Islands region of northwest Mexico. We fenced 475?ha of riparian zones from livestock, erected erosion-control structures, planted trees, and developed management agreements for cool-season grazing with landowners on 10?ranches across 3 sites in 2012-2013, then repaired fences and renegotiated agreements in 2017-2019. To foster evaluation, we used a before-after/control-impact design to measure attributes of vegetation structure and bird communities and compared baselines from 2012 with post-treatment estimates from 2019. As predicted, understory vegetation volume generally increased in treatments relative to controls (P ?=?.09), especially when one treatment area with the lowest pre-treatment grazing impacts was censored (P ?=?.01). Although canopy cover also increased, there was little differential change in treatments relative to controls (P ???.23) due likely to longer time periods needed to realize responses. Densities of most focal bird populations varied across time periods in directions that typically matched observed changes in vegetation structure, but fewer species showed signs of differential positive change linked to treatments relative to controls. Densities of Yellow-breasted Chat, a key understory obligate and important focal species, increased in treatments relative to controls across sites, as did densities of Sinaloa Wren, which also use dense underbrush (P ???.05). Positive changes by other understory obligates (eg, Common Yellowthroat, Song Sparrow) were more local but sometimes of high magnitude (>8-fold) also suggesting positive impacts of treatments. Despite mixed results over a limited time period, these patterns suggest restoration efforts drove localized recovery of understory vegetation and associated bird populations, but benefits varied widely with environmental and social factors linked to management. Greater ecological benefits to riparian areas on private and communal lands in this region can be fostered by further incentivizing construction, maintenance, and proper use of restoration infrastructure, through education, and by building relationships based on trust and credibility with landowners.
机译：鉴于这些领域的生态意义和公共保护区的稀缺，对墨西哥的私人和公共土地上的私人和公共土地恢复和加强河岸植被对生物多样性和公共影响率。为了加强河岸植被和野生动物栖息地，培养恢复技术的当地人，我们在墨西哥西北天空群岛地区的私人和公共土地上实施了恢复和外展努力。我们围起475年的河岸区域，从牲畜，侵蚀控制结构，种植树木和发展协议的凉爽季节与土地所有者放牧的凉爽赛，以及2012 - 2013年3个遗址的牧场，然后修复了围栏和重新谈判协议2017-2019。为了培养评估，我们使用前后/控制影响设计来衡量植被结构和鸟类社区的属性，并与2012年与2019年后处理估计的基线。如预测的那样，较高的植被体积通常在治疗中增加治疗方法（ p？= ?. 09），特别是当被察觉那个具有最低预处理的预处理撞击的一个处理区域被察觉（ p？= 01）。虽然冠层覆盖也有所增加，但相对于对照（ p ??? 23）的治疗几乎没有差异变化大多数焦点鸟类群体的密度在通常匹配植被结构的观察到变化的方向上变化，但物种较少显示出与治疗相关的差异阳性变化的迹象。黄胸聊天的密度，一个关键的林下责任和重要的焦点物种，在跨地网站上的治疗中增加了治疗，以及SILLOA WREN的密度，也使用致密的挤压（p≤0.05）。其他林下义务（例如，常见的黄喉，歌曲麻雀）的积极变化更为局部，但有时高度（> 8倍）也表明治疗的积极影响。尽管在有限的时间内发生了混合结果，但这些模式表明恢复努力推动了林下植被和相关鸟类群体的本地化恢复，但与管理有关的环境和社会因素的益处变化。通过进一步激励建筑，维护和适当使用恢复基础设施，通过教育，通过基于信任和可信度与土地所有者建立关系，可以通过进一步激励建筑，维护和适当使用的私人和公共土地上的私人和公共土地上的私人和公共土地上的河岸地区更大的生态效益。

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