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High breeding success of the European Starling compared to native species in a recently invaded natural forest of South America 在最近入侵的南美自然森林中,欧洲椋鸟与本地物种相比繁殖成功率高
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02401-180112
Adrián Jauregui, Paula A. Gerstmayer, M. Colombo, L. Segura
,
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引用次数: 0
Weak support for cumulative effects of industrial disturbance on three owl species in Alberta’s boreal forest 工业干扰对阿尔伯塔北部森林中三种猫头鹰的累积效应的微弱支持
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02409-180109
J. Shonfield, E. Bayne
. Human-caused disturbances are encroaching on natural areas and quantifying the relative effects of different types of disturbance, and whether they interact on a landscape to create additive or synergistic cumulative effects, will provide a better understanding of how wildlife are affected. We evaluated potential cumulative effects of industrial disturbance on habitat use of Barred Owls ( Strix varia ), Great Horned Owls ( Bubo virginianus ), and Boreal Owls ( Aegolius funereus ) in Alberta’s boreal forest using acoustic survey presence/absence data and boosted regression tree analysis to quantify the relative importance and interactions of different types of industrial disturbance, as well as forest age and composition. Barred Owls were more likely to be found in older mixedwood and deciduous forest, and we found evidence suggestive of cumulative effects from a negative effect of total human footprint on habitat use and an additional negative effect of roads. Great Horned Owls were found in older forest but were relatively tolerant of disturbance, and soft linear features (seismic lines, pipelines, transmission lines) had a positive effect on habitat use, possibly due to these types of disturbances creating suitable hunting habitat. Boreal Owls were more likely to be found in older coniferous forest, and the effects of disturbance did not show clear evidence of sensitivity or tolerance to human disturbance. Our results indicate the importance of forest age and composition on habitat use for these owls. Cumulative effects varied among owl species and were potentially more significant for Barred Owl; for the other two species the effects of industrial disturbance were relatively small and there was no evidence of cumulative effects. Our study also demonstrates that assessing cumulative effects of human disturbance on wildlife using boosted-regression trees can effectively help focus conservation efforts and can be used, for example, for evaluating the environment effects of new projects prior to their implementation
. 人为干扰正在侵占自然区域,量化不同类型干扰的相对影响,以及它们是否在景观上相互作用,产生叠加效应或协同累积效应,将有助于更好地了解野生动物是如何受到影响的。利用声学调查的存在/缺失数据,评估了工业干扰对阿尔伯塔北部森林中横斑猫头鹰(Strix varia)、大角猫头鹰(Bubo virginianus)和北方猫头鹰(Aegolius funereus)栖息地利用的潜在累积效应,并采用增强回归树分析来量化不同类型工业干扰的相对重要性和相互作用,以及森林年龄和组成。横斑猫头鹰更有可能出现在较老的混交林和落叶林中,我们发现的证据表明,人类总足迹对栖息地利用的负面影响和道路的额外负面影响存在累积效应。大角猫头鹰在古老的森林中发现,但对干扰相对耐受,软线性特征(地震线、管道、输电线路)对栖息地的利用有积极影响,可能是因为这些类型的干扰创造了合适的狩猎栖息地。北方猫头鹰更有可能出现在古老的针叶林中,干扰的影响没有显示出对人类干扰的敏感或耐受的明确证据。我们的研究结果表明,森林年龄和组成对这些猫头鹰的栖息地利用的重要性。累积效应因猫头鹰种类而异,对横斑猫头鹰可能更为显著;工业干扰对其他两个物种的影响相对较小,没有证据表明存在累积效应。我们的研究还表明,利用增强回归树评估人类干扰对野生动物的累积影响,可以有效地帮助集中保护工作,并可用于评估新项目实施前的环境影响
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引用次数: 0
Using Breeding Bird Survey and eBird data to improve marsh bird monitoring abundance indices and trends 利用繁殖鸟类调查和eBird数据改进湿地鸟类丰度监测指数和趋势
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02357-180104
Kristin Bianchini, Douglas C. Tozer
. The elusive nature of many marsh-breeding birds presents a challenge for effective population monitoring. The Great Lakes Marsh Monitoring Program (GLMMP), delivered by Birds Canada, addressed these challenges by concentrating survey efforts in marsh bird habitats and by using survey protocols aimed at maximizing marsh bird detections. GLMMP data suggest that numerous marsh bird species are declining. Here we consider the value of other avian monitoring programs to support our understanding of marsh bird population trends. Our goal was to compare the GLMMP, North American Breeding Bird Survey (BBS), and eBird with each other and with a combined survey, by evaluating frequency of detection, annual indices of abundance, and trend estimates. Using 23 years (1997–2019) of GLMMP, BBS, and eBird data, we calculated annual indices of abundance and trends for each survey for 18 marsh-breeding species across southern Ontario, Canada. We found that the GLMMP had more frequent detections, greater counts, and/or more precise trends for 8 species that breed almost exclusively in marshes, whereas 10 species with more variable habitat preferences had more frequent detections, greater counts, and/or more precise trends based on eBird and/or BBS. We found that combining counts from the GLMMP, BBS, and eBird increased the precision around trend estimates for 11/18 (61%) species; however, trend estimates for combined data tended to be positively biased relative to GLMMP trends for species that also frequent non-marsh habitats. We, therefore, provide evidence that combining citizen science data from multiple sources could increase the power to detect changes in marsh-dependent bird populations. Integrated datasets thus provide a promising avenue for future marsh bird conservation and management
. 许多沼泽繁殖鸟类难以捉摸的特性对有效的种群监测提出了挑战。由加拿大鸟类局提供的五大湖沼泽监测计划(GLMMP)通过集中调查沼泽鸟类栖息地和使用旨在最大限度地探测沼泽鸟类的调查协议来解决这些挑战。GLMMP数据显示,许多沼泽鸟类物种正在减少。在这里,我们考虑其他鸟类监测项目的价值,以支持我们对沼泽鸟类种群趋势的理解。我们的目标是通过评估检测频率、年度丰度指数和趋势估计,将GLMMP、北美繁殖鸟类调查(BBS)和eBird相互比较并与联合调查进行比较。利用23年(1997-2019)的GLMMP、BBS和eBird数据,我们计算了加拿大安大略省南部18种沼泽繁殖物种的年度丰度指数和趋势。我们发现,在GLMMP中,几乎只在沼泽中繁殖的8种物种具有更高的检测频率、更高的计数和/或更精确的趋势,而在eBird和/或BBS中,栖息地偏好变化较大的10种物种具有更高的检测频率、更高的计数和/或更精确的趋势。我们发现,结合GLMMP、BBS和eBird的计数可以提高11/18(61%)物种的趋势估计值的精度;然而,对于经常出现在非沼泽生境的物种,综合数据的趋势估计相对于GLMMP趋势倾向于正偏倚。因此,我们提供的证据表明,结合来自多个来源的公民科学数据可以增加检测沼泽依赖鸟类种群变化的能力。因此,综合数据集为未来的沼泽鸟类保护和管理提供了一条有希望的途径
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引用次数: 1
Survival of Common Loon chicks appears unaffected by Bald Eagle recovery in northern Minnesota 在明尼苏达州北部,秃鹰的恢复似乎没有影响到普通潜鸟雏鸟的生存
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02395-180107
J. Cruz, S. Windels, W. Thogmartin, S. Crimmins, B. Zuckerberg
,
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引用次数: 0
Before-and-after evidence that urbanization contributes to the decline of a migratory songbird 城市化导致迁徙鸣禽数量减少的前后对比证据
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02366-180115
K. Heide, L. Friesen, V. Martin, E. Cheskey, Michael D. Cadman, D. Norris
,
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引用次数: 0
Comparative use of artificial structures and natural vegetation by birds in a built-up urban area in Ghana 在加纳的一个建成的城市地区,鸟类对人工结构和自然植被的比较使用
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02351-180106
Joseph K. Afrifa, Justus P. Deikumah, K. Monney
. Our understanding of how birds use human supplementary resources, especially artificial structures and patchy vegetation within urban areas, is limited. Our study compared the use of artificial structures versus natural vegetation by birds in built-up areas in the Cape Coast Metropolitan Assembly (CCMA) in the central region of Ghana. Using point count technique, we recorded bird species and the activities performed as well as the substrates they use in residential and commercial areas within the CCMA. We found that the mean bird abundance that used artificial structures did not differ significantly from those that used natural vegetation. The mean species richness that used artificial structures was found to differ significantly from those that used natural vegetation. The study also found a significant difference in activities performed by bird species and the substrate type used for daily life activities. Across species, birds showed preference for trees, shrubs, and natural vegetation structures for perching, feeding, and singing, whereas artificial structures such as billboards, telecommunication masts, ceilings of buildings, pylons, buildings, opening in street lights, and windows of buildings were preferred for nesting. These results demonstrate that although not a replacement for natural resources, artificial structures, when combined with natural vegetation, could contribute significantly to the survival of urban birds. Conservation practitioners could encourage urban mosaic landscapes of built and green spaces to conserve and restore populations of birds.
. 我们对鸟类如何利用人类的补充资源,特别是城市地区的人工结构和斑驳植被的了解有限。我们的研究比较了加纳中部海岸角大都会议会(CCMA)建成区鸟类对人工结构和自然植被的使用。利用点计数技术,我们记录了CCMA内居住和商业区域的鸟类种类、活动及其使用的基质。研究发现,人工结构与自然植被的鸟类平均丰度差异不显著。利用人工结构的平均物种丰富度与利用自然植被的平均物种丰富度存在显著差异。研究还发现,鸟类的活动和日常生活活动所使用的基质类型存在显著差异。在不同种类的鸟类中,鸟类更喜欢在树木、灌木和自然植被结构中栖息、觅食和唱歌,而在广告牌、电信桅杆、建筑物天花板、塔架、建筑物、路灯开口和建筑物窗户等人工结构中筑巢。这些结果表明,人工结构虽然不能替代自然资源,但当与自然植被相结合时,对城市鸟类的生存有重要贡献。保护工作者可以鼓励城市建筑和绿地的马赛克景观,以保护和恢复鸟类种群。
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引用次数: 0
Raptors benefit from biosolids applications on rangelands 猛禽从牧场的生物固体应用中受益
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02457-180125
Jennifer K. Meineke, F. Doyle, K. Hodges
,
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引用次数: 0
Full-service hotels, convenience stores, or fire escapes? Evaluating the functional role of stopover sites for Neotropical migrants following passage across the Gulf of Mexico in autumn 提供全方位服务的酒店,便利店,还是防火梯?评估秋季穿越墨西哥湾的新热带候鸟中途停留点的功能作用
4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02150-180207
Lauren Solomon, Antonio Celis-Murillo, Michael Ward, Jill Deppe
Nearctic Neotropical migratory songbirds incur the highest mortality during migration. En-route, songbirds rely on a network of stopover sites to rest, refuel, and/or seek refuge during poor weather. Conservation strategies prioritize protection of sites that best meet these needs. However, the specific function of a stopover site is expected to vary in relation to factors, such as geographic location, surrounding landscape, and weather. To identify sites with the highest conservation value for migratory songbirds, a conceptual framework was independently developed to classify sites into three functional categories based on their geographic and landscape features: fire escapes, convenience stores, and full-service hotels. The few attempts to empirically validate this framework have focused on temperate stopover sites. We evaluated the framework by testing the hypothesis that a site’s geographic and landscape characteristics can predict its function. We used capture and radio-tracking data at an island and mainland site in the Yucatan Peninsula, Mexico to quantify mean and variance in daily capture rate, body condition, stopover duration, and departure behavior during autumn, with a focus on four species: Swainson’s Thrush (Catharus ustulatus), Red-eyed Vireo (Vireo olivaceus), Gray Catbird (Dumetella carolinensis), and Prothonotary Warbler (Protonotaria citrea). Our results supported our predictions that the island functions as a fire escape, providing refuge for very high numbers of birds after encountering crosswinds or headwinds over the Gulf of Mexico, and the mainland forest site serves as a full-service hotel. The framework provides valuable insight for strategic conservation planning and management of stopover sites for songbirds. We suggest future studies evaluate the framework’s application to non-forest bird species. Additionally, we encourage collaborative efforts to consolidate and integrate tracking data, capture data from migration banding stations, and radar-based bird density estimates across a broad geography to test the framework’s ability to inform conservation planning across species’ full migratory range.
新北极新热带候鸟在迁徙过程中死亡率最高。在途中,鸣禽依靠中途停留点网络来休息,加油,或者在恶劣天气时寻求庇护。保护策略优先保护最能满足这些需求的地点。然而,中途站的具体功能预计会因地理位置、周围景观和天气等因素而有所不同。为了确定最具保护价值的候鸟保护区,研究人员独立开发了一个概念框架,根据其地理和景观特征将候鸟保护区划分为三个功能类别:消防通道、便利店和全方位服务酒店。经验验证这一框架的少数尝试集中在温带中途停留地点。我们通过测试场地的地理和景观特征可以预测其功能的假设来评估该框架。在墨西哥尤卡坦半岛的一个岛屿和大陆站点,利用捕获和无线电跟踪数据,量化了秋季每日捕获率、身体状况、停留时间和离境行为的均值和方差,重点研究了四个物种:天鹅画眉(Catharus ustulatus)、红眼鸟(Vireo olivaceus)、灰猫鸟(Dumetella carolinensis)和原花莺(Protonotaria citrea)。我们的研究结果支持了我们的预测,即该岛可以作为一个消防通道,在遇到墨西哥湾的侧风或逆风后为大量鸟类提供避难所,而大陆森林地点可以作为一个全方位服务的酒店。该框架为鸣禽中途停留地的战略性保护规划和管理提供了有价值的见解。我们建议未来的研究评估该框架在非森林鸟类中的应用。此外,我们鼓励合作巩固和整合跟踪数据,从迁徙带站捕获数据,以及基于雷达的鸟类密度估算,以测试该框架在物种整个迁徙范围内为保护规划提供信息的能力。
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引用次数: 0
Combining community science and MaxEnt modeling to estimate Wild Turkey ( Meleagris gallopavo ) winter abundance and distribution 结合社区科学和MaxEnt模型估算野生火鸡(Meleagris gallopavo)冬季丰度和分布
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02390-180108
Jennifer E. Baici, J. Bowman
. Understanding the distribution and abundance of species is a fundamental aspect of conservation biology. Species distribution models aim to predict distributions based on species observations and ecologically relevant information. To understand the contemporary distribution of Wild Turkeys ( Meleagris gallopavo ) in Ontario, we curated and collated Wild Turkey flock observations from eBird and iNaturalist submitted during winter 2018. We combined these with environmental predictors to build distribution models using MaxEnt and evaluated model fit using 10-fold cross validation. We also estimated total population size for this species under different modeling scenarios. The potential presence of unknown spatial bias in community science datasets is a complex problem often requiring context-specific statistical solutions. Data cleaning, sometimes referred to as thinning, filtering, or culling, is often proposed to manage this bias. As such, we tested the effect of data cleaning on model outputs and on subsequent analyses. We evaluated all models using area under the curve (AUC). We found building density to be the most important environmental variable followed by winter severity. We validated our habitat suitability estimates using fine-scale GPS data and found that data cleaning had no effect on habitat suitability estimates inside available Wild Turkey habitat or inside core-use areas, except at one site in 2012 (t = -2.2, P = 0.04, df = 14). Use of community collected data offers a cost-efficient and collaborative method to obtain data for species distribution modeling and management. We discuss implications for Wild Turkey management and present potential contemporary distribution maps for this species.
. 了解物种的分布和丰富程度是保护生物学的一个基本方面。物种分布模型的目的是基于物种观察和生态相关信息来预测物种分布。为了了解野生火鸡(Meleagris gallopavo)在安大略省的当代分布,我们整理和整理了eBird和iNaturalist在2018年冬季提交的野生火鸡群观察结果。我们将这些与环境预测因子结合使用MaxEnt构建分布模型,并使用10倍交叉验证评估模型拟合。我们还估算了不同模拟情景下该物种的总种群规模。社区科学数据集中潜在的未知空间偏差是一个复杂的问题,通常需要针对具体情况的统计解决方案。数据清理,有时被称为细化、过滤或剔除,经常被用来管理这种偏差。因此,我们测试了数据清理对模型输出和后续分析的影响。我们使用曲线下面积(AUC)评估所有模型。我们发现建筑密度是最重要的环境变量,其次是严冬。我们利用精细尺度GPS数据验证了我们的栖息地适宜性估计,发现数据清理对现有野生火鸡栖息地或核心利用区内的栖息地适宜性估计没有影响,除了2012年的一个站点(t = -2.2, P = 0.04, df = 14)。利用群落收集的数据为物种分布建模和管理提供了一种经济有效的协作方法。我们讨论了对野生火鸡管理的影响,并提出了该物种潜在的当代分布图。
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引用次数: 1
Diversity in selection patterns of five grassland songbirds in dry-mixed grasslands of Alberta 艾伯塔省干混草地5种草地鸣禽选择模式的多样性
IF 1.4 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION Pub Date : 2023-01-01 DOI: 10.5751/ace-02425-180116
Julie Landry-DeBoer, Paul F. Jones, Brad A. Downey, P. Rose, Katheryn Taylor, Mike S. Verhage, Amanda B. MacDonald, Adam Moltzahn
,
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引用次数: 0
期刊
Avian Conservation and Ecology
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