Identifying coarse- and fine-scale drivers of avian abundance following prescribed fires

摘要: Abstract Suppression of historic fire regimes in North America has altered successional stages and shifted vegetation communities, negatively impacting wildlife diversity forests. Prescribed is often used to increase habitat for populations but monitoring responses does not always capture nuanced differences that influence communities over a range ecological conditions processes. We matched avian point count data with extensive sampling unburned plots burned 12–16 months prior evaluate the effects coarse- fine-scale variables on abundance suite indicator species nesting guilds. estimated conditional detection probability based repeated time intervals using N-mixture models assessed support multimodel inference AIC. Six 10 demonstrated different abundances plots. Abundances three were influenced solely by coarse variables, one vegetation, five dependent mix variables. Even characteristics did fully processes stimulated compensatory community including interactions among such as competition predator avoidance should be considered predicting prescribed fire. Shrub nester was much higher year prior, effect sizes other small ground, tree, cavity nesters, even though there strong individual within those Detection most affected during start time, temperature wind, also burn status observer, suggesting potential bias findings do account heterogeneity probability. suggest variable guilds may obscure identification inhibit assessment management restoration actions. Understanding species-specific context typology associated vegetative will provide greatest insight how interact produce responses, thus enhance its use tool.