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Showing 1 to 16 of 16 for “"BACI"”.
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Disturbance-based restoration for recovery of pitch pine (Pinus rigida) in the Thousand Islands Ecosystem: a comparison of prescribed fire and mechanical disturbance on seedling regeneration
… seedlings using a Before-After Control-Impact (BACI) design at two sites at the northeast range margin of P. rigida in the Thousand Islands Ecosystem, Canada. Fire had the greatest effect on regenerating P. rigida seedlings and mechanical treatments were ineffective. My results suggest that the …
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Improving Estuarine Water Quality in South Florida: A Quantitative Evaluation of The Efficacy of a Local Nutrient Ordinance
… its efficacy, a before after control impact (BACI) design was implemented using Fort Lauderdale in Broward County Florida as a reference location. A total of twenty estuarine canal sampling locations were identified in both Lee and Broward Counties. The analysis used data spanning three years …
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Amphibian and Reptile Community Responses to Forest and Riparian Disturbance
… employing a Before-After-Control-Impact (BACI) design. Collectively, our results indicate that SMZs surrounding small first-order streams in intensively managed forests not only protect water quality, but also can support diverse amphibian and reptile communities. </p>
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Geomorphic Analysis of A Rural Fluvial System During Pre-Dam Removal Conditions: A Case Study In Eastern Virginia
… of the dams on an adjacent stream as part of a BACI analysis. Channel survey measurements indicate variability in channel morphology, which is most likely attributed to tidal influences and measurement error. Student's t-test results suggest that Sites 1-4 are not statistically different …
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Mercury concentration and aquatic food web alterations associated with zebra mussel invasion in Minnesota lakes
… analyzed using Before-After Control-Impact (BACI) study design increased by 8.2% in northern pike and 15.4% in walleye for invaded lakes, while uninvaded systems were stagnant or decreased. To quantify resource use and community structure, food webs in Leech Lake were analyzed pre- and post- …
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Does the availability of shade limit use of water troughs by desert birds?
… using the Before-After, Control-Impact (BACI) design. After an initial baseline was established, three waterholes were shaded while the other three were left unshaded. Camera traps were used to record the pattern and intensity of water use by bird species at different times of the day and …
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Hydrologic Response to Conifer Removal from an Encroached Mountain Meadow
… implemented a before after control intervention (BACI) study design to determine the hydrologic response associated with the removal of conifers from a historic meadow encroached by conifers. The primary goals of this research were to: (1) establish a method to evaluate the weekly water balance of …
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Impacts of artisanal and large scale gold mining on tropical rivers in West Africa: A case study from the Brong Ahafo Region of Ghana
… sediment quality was determined using a reversed BACI (Before/After and Control/Impact pairing) experimental design, whilst that of LSM used a conventional BACI design. Impacts on macroinvertebrate community structure were determined by comparing multiple control and impact sites sampled multiple …
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Seguimiento y gestión de sistemas depredadores-presa : aplicación a la conservación de fauna amenazada
… 4% cada año desde 1989 hasta 2010. El análisis BACI no permite apoyar ni rechazar la existencia de un efecto del control de depredadores sobre el éxito reproductor. Aún así, en la zona con control de depredadores se logró frenar la tendencia regresiva del éxito reproductor desde 1993 y se …
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The effects of land use change, from small livestock farming to protected area, on vegetation and mammal communities in the SKA region of the Karoo, South Africa
… to design a Before-After-ControlIntervention (BACI) study investigating how a cessation in farming activity impacts both natural vegetation and wildlife. I hypothesised that this change would positively impact vegetation, and small and medium/large mammals. To test this, I compared biota using …
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Evaluating Statistical Models for Baseline Characterization and Measuring Change in Environmental Monitoring Data
In Before-After monitoring studies, statistical models are used to characterize baseline (i.e., pre-disturbance) conditions, and to detect, quantify, and forecast change during operational monitoring (i.e., post-disturbance). To establish best practices for analyzing monitoring data, a model …
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The Behavioral and Physiological Effects of Long-Distance Translocation on Western Rattlesnakes (Crotalus oreganus)
… every day. A ‘Before-After Control-Impact’ (BACI) experimental design was used, with a dedicated control group, but also with the translocated group serving as control prior to the act of translocation.</p> <p>We collected data on snake body temperatures (T<sub>b</sub>) and temperatures …
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The Impact of Wind Turbines on the Distribution of Wintering and Migrating Raptors
Renewable energy sources, including wind power, are rapidly expanding as governments aim to fight climate change. However, wind turbines may negatively affect surrounding wildlife. Raptors are birds of prey and are potentially susceptible to being negatively affected by wind turbines. Raptor …
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Working with large-scale population trend data in ecology and conservation: methods and applications
Wildlife conservation, at its core, hinges on sustaining and maintaining animal popu- lations. Whether reducing hunting, protecting habitat or creating breeding pro- grammes, so many conservation decisions have population support at their core, and yet methods to accurately work with population …
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Naturalism & Objectivity: Methods and Meta-methods
The error statistical account provides a basic account of evidence and inference. Formally, the approach is a re-interpretation of standard frequentist (Fisherian, Neyman-Pearson) statistics. Informally, it gives an account of inductive inference based on arguing from error, an analog of …