Landscape composition influences avian colonization of experimentally created snags

Kroll, Andrew J.; Duke, Steven D.; Hane, Matthew E.; Johnson, Josh; Rochelle, Mike; Betts, Matthew G.; Arnett, Edward B.

doi:10.1016/j.biocon.2012.03.029

Cited by 26 publications

(16 citation statements)

References 31 publications

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“…In that study, most invertebrate groups were unaffected by major additions or removals of dead wood (Ulyshen and Hanula, 2009a) and some vertebrates (e.g., snakes) appeared to be negatively affected by addition of certain types of dead wood (Owens et al, 2008). In other studies, the horizontal distribution of dead wood -clumped versus evenly spread -had contradictory effects depending on the studied species group (Barton et al, 2011;Kroll et al, 2012). Standing dead Positive values indicate higher mean species richness on plots with added dead wood than on controls; negative values indicate lower mean species richness on plots with added dead wood than on controls.…”

Section: Summary Of Results Of Experimental Studies Of Dead Woodmentioning

confidence: 84%

“…On the landscape level, soil conditions were the focus of a few studies (e.g., Cornelissen et al, 2012), but macroclimate was only rarely examined (e.g., Müller et al, 2014). Of the biotic features of dead wood, the amount of dead wood was most frequently manipulated in all climate zones, for example by exposing different numbers of logs (Manning et al, 2013) or by cutting, topping or girdling different numbers of trees (e.g., Kroll et al, 2012;Ulyshen and Hanula, 2009b). Only six or fewer studies manipulated the horizontal distribution of snags (Walter and Maguire, 2005) or logs (Barton et al, 2011) or tree species diversity (Seibold et al, 2014).…”

Section: Overview Of Experimental Studiesmentioning

confidence: 99%

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Experimental studies of dead-wood biodiversity — A review identifying global gaps in knowledge

Seibold

Bässler

Brandl

et al. 2015

Biological Conservation

242

170

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Section: Summary Of Results Of Experimental Studies Of Dead Woodmentioning

confidence: 84%

Section: Overview Of Experimental Studiesmentioning

confidence: 99%

Experimental studies of dead-wood biodiversity — A review identifying global gaps in knowledge

Seibold

Bässler

Brandl

et al. 2015

Biological Conservation

242

170

View full text Add to dashboard Cite

“…Unspecified variation could arise from multiple sources, including differences in regional species pools across our study landscape (Cornell & Harrison ; Mittelbach & Schemske ) and differences in landscape configuration and/or composition around experimental blocks (Kroll et al . 2012a, ; Tscharntke et al . ).…”

Section: Discussionmentioning

confidence: 99%

Assembly dynamics of a forest bird community depend on disturbance intensity and foraging guild

Kroll

Verschuyl

Giovanini

et al. 2016

Journal of Applied Ecology

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Summary Tree plantations occur globally and are often promoted as a strategy to supply wood products for an expanding human population while reducing pressure on natural forests. Herbicides can accelerate growth of crop trees by suppressing competing vegetation, but little information is available about potential trade‐offs with early seral biodiversity resulting from more intensive management. Using data collected over 5 years immediately following stand‐replacing disturbance (clear‐felling), we used a large‐scale experiment to test how environmental filtering influences dynamics of avian community assembly. We evaluated avian responses to three levels of plant cover reduction (light, moderate and intensive herbicide applications) in relation to a control without herbicide. Under the environmental filtering hypothesis, we expected reduced avian species richness and higher turnover as broadleaf plant cover decreases with increasing management intensity. We predicted that the most intensive treatments would exert strong negative effects on leaf‐gleaning insectivores, including several species of conservation concern due to long‐term population declines. Richness of leaf‐gleaning bird species was reduced by 23–52% over the 5 years on moderate (standard practice) vs. control treatments, but effects were substantially smaller for the non‐leaf‐gleaner guild in years 1–4 (8–25%) and disappeared by year 5 (0%). Both leaf‐gleaner and non‐leaf‐gleaner functional groups continued to colonize moderate and intensive treatments at higher probabilities than the control in Year 5 (range: 0·17–0·29), likely due to rapid vegetation recovery after herbicide applications ceased. Planted conifers were >35% taller and >70% larger in diameter in the two most intensive treatments, leading to substantially more wood volume produced per unit area than on stands without herbicide applications. Synthesis and applications. Under current management regimes, stand‐level trade‐offs between conservation of avian diversity and production of wood commodities may be less severe than previously recognized. However, in landscapes where biodiversity conservation rather than wood production is the primary goal, managers can adjust the trade‐off by making relatively small reductions in herbicide use that should have positive impacts on richness of leaf‐gleaning insectivorous birds.

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“…However in situations where cavities are limited or clustered, negative interactions can be more evident (Bull et al, 1997;Walter and Maguire, 2005). For example, Kroll et al (2012) found that the percentage of created snags used for nesting in this study was lower in clumped than dispersed snags. In addition, we note that the territorial nature of cavitynesting birds may have hindered our ability to gather a sufficient sample size to test treatment effects.…”

Section: Densitymentioning

confidence: 79%

Experimental effects of structural enrichment on avian nest survival

Hane

Kroll

Johnson

et al. 2012

Forest Ecology and Management

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Landscape composition influences avian colonization of experimentally created snags

Cited by 26 publications

References 31 publications

Experimental studies of dead-wood biodiversity — A review identifying global gaps in knowledge

Experimental studies of dead-wood biodiversity — A review identifying global gaps in knowledge

Assembly dynamics of a forest bird community depend on disturbance intensity and foraging guild

Experimental effects of structural enrichment on avian nest survival

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