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3 results for “Habitat utilisation”
Data and Code from: Wildfire influences species assemblage and habitat utilisation of boreal wildlife after more than a decade in northern Sweden
<p>Data and Code supporting the analyses presented in: Fredriksson, Cromsigt & Hofmeester - Wildfire influences species assemblage and habitat utilisation of boreal wildlife after more than a decade in northern Sweden as published in Wildlife Biology</p> <p><strong>Abstract</strong></p> <p><span>Fires can strongly change the vegetation structure and the availability of resources for wildlife, but fire suppression has long affected the natural role of fire in shaping boreal ecosystems in northern Europe. Recently, wildfires have increased in frequency, possibly due to global warming. In contrast to the boreal systems in North America, there have been few studies on responses of wildlife to wildfires in northern Europe. Based on the findings from North America, we predict that responses of wildlife to wildfire vary among wildlife species: where mammalian herbivores, such as moose (<em>Alces alces</em>) and mountain hare (<em>Lepus timidus</em>), will be attracted to burnt areas following an increase in food availability, other species, such as reindeer (<em>Rangifer tarandus</em>), are negatively impacted due to fire reducing their preferred food. We then tested our predictions by contrasting wildlife utilization of sites that burnt by wildfire in 2006 with nearby unburnt control sites in three areas in northern Sweden. To measure wildlife utilization, we used 72 camera traps, equally divided between the burnt and control sites, with two placement strategies: random and on wildlife trails. The cameras recorded 27 mammal and bird species during summer 2018. Species assemblage differed between burnt and control sites. Fieldfare (<em>Turdus pilaris</em>) used burnt sites more than control sites, while pine marten (<em>Martes martes</em>) and western capercaillie (<em>Tetrao urogallus</em>) used control sites more than burnt sites. We however did not find support for a positive effect of past forest fires on any of the observed wild mammals. We discuss how, due to the impact of forestry, forage-rich habitat may not be as limiting in Scandinavia as in the North-American context, potentially leading to recently burnt sites being less attractive to herbivores such as moose.</span></p>
Data from: Virus community structuring is shaped by habitat heterogeneity and resource utilisation strategies
<p><span>After decades of disconcerted research, we still recognise large gaps in the understanding of mechanisms that govern disease dynamics in complex biological communities. To determine how spatial structuring of plant communities caused by anthropic disturbance affects resource utilisation traits of viruses, we combine high-throughput, network, and metacommunity approaches. We find that the disturbance gradient corresponded to network modules and habitat specificity exhibited by a majority of viruses. Communities were connected through key hub species of either generalist viruses or high potential host reservoirs. Spatial dependencies were evident in regression models of species richness and correlations between metacommunity structure and both host range and transmission mode at finer spatial resolutions. We propose that virus community assembly is influenced by variation in niche opportunities. Distinctions in virus community composition caused by resource compartmentalisation can be used to track ecological traits important in forecasting transmission risk.</span></p>
Data from: Virus community structuring is shaped by habitat heterogeneity and resource utilisation strategies
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