Conserving wildlife in managed forests requires knowledge of the interplay between species’ ecology and forestry practices. Spruce grouse (Falcipennis canadensis) are obligate residents of North American conifer forests with a southern range terminus in the northern U.S. We studied survival and reproduction of spruce grouse from 2012 through 2018 in north-central Maine, USA, within a landscape managed extensively for commercial forest products. We used radio telemetry data from 151 unique spruce grouse to monitor nest survival, brood success, and mortality of two age classes (juvenile and adult), and related these factors to a geospatial layer of stand harvest histories that provided a record of the timing and method of silvicultural treatments over the previous 30 years. We evaluated how demographic rates were affected by these forest practices, constructed stage-structured models of spruce grouse population growth, and used these models to quantify potential effects of management legacy on population dynamics. Nests in clearcuts with post-harvest treatments (herbicide and pre-commercial thinning) had lower success than those located in other stand types. Success of broods during summer increased with greater use of residual stands (unharvested for > 31 years), however, juvenile spruce grouse that made greater use of residual stands following independence had reduced survival. Adults that used a greater proportion of clearcuts lacking post-harvest treatments had the greatest annual survival. Deterministic and stochastic population models predicted values of λ < 1.0, suggesting population decline, and we found that λ was most sensitive and elastic to survival of adult females. Combined results from demographic analyses and our population model showed that greater use of untreated clearcuts by adult females had the largest potential to increase population growth, and that a stable to increasing growth rate (λ ≥ 1.0) could be achieved with particular combinations of stand use at different life stages. In this system the demographic mechanisms affecting relationships between forest management and spruce grouse population dynamics were complex. Ongoing changes in forest practices within the region may shift forests away from conifer-dominated composition, with negative consequences for the future status of the species.

在管理森林中保护野生生物需要了解物种生态与林业实践之间的相互作用。云杉松鸡（加拿大恶性犬）是北美针叶林的专心居民，在美国北部的南部有一个终点站。我们研究了从2012年到2018年在美国缅因州中北部的云杉松鸡的生存和繁殖情况，该区域广泛用于商业林产品。我们使用了来自151种独特云杉松鸡的无线电遥测数据来监测两个年龄段（幼年和成年）的巢生存，育雏成功和死亡率，并将这些因素与林分采伐历史的地理空间相关联，从而提供了时间和时间的记录。过去30年的造林方法。我们评估了人口率如何受到这些森林做法的影响，构建了云杉松鸡种群增长的阶段结构模型，并使用这些模型来量化管理遗产对人口动态的潜在影响。与其他林分类型相比，采用收获后处理（除草剂和商业前稀疏处理）的无害巢穴的成功率较低。夏季，随着更多地使用剩余林（超过31年未收获），育成的成功率增加，但是，幼年的云杉松鸡在独立后更多地使用剩余林，降低了存活率。那些没有收获后治疗而使用大量纯净物的成年人，其年生存率最高。确定性和随机的人口模型预测λ<1.0，表明人口下降，并且我们发现λ对成年女性的生存最为敏感和灵活。人口分析和我们的人口模型的综合结果表明，成年女性更多地使用未经处理的纯净砍伐物具有最大的潜力来增加种群增长，并且特定的林分使用组合可以实现稳定的增长速度（λ≥1.0）在不同的人生阶段 在这个系统中，影响森林经营与云杉松鸡种群动态之间关系的人口统计学机制很复杂。该地区森林做法的持续变化可能会使森林从针叶树为主的组成转移，对物种的未来状况产生负面影响。0）可以通过在不同生命阶段对展台用途进行特定组合来实现。在这个系统中，影响森林经营与云杉松鸡种群动态之间关系的人口统计学机制很复杂。该地区森林做法的持续变化可能会使森林从针叶树为主的组成转移，对物种的未来状况产生负面影响。0）可以通过在不同生命阶段对展台用途进行特定组合来实现。在这个系统中，影响森林经营与云杉松鸡种群动态之间关系的人口统计学机制很复杂。该地区森林做法的持续变化可能会使森林从针叶树为主的组成转移，对物种的未来状况产生负面影响。