1. When making decisions about forest and environmental management, managers and policymakers often rely upon scientific knowledge. There is a well-documented 'knowledge-integration gap' where often the production of knowledge and its use are not aligned. Though there are several theoretical frameworks that conceptualize how knowledge is exchanged between producers of scientific knowledge and users of that information, there has been little attention to documenting knowledge exchange practices and their effectiveness, especially about forests.2. In the systematic map, we will examine the peer-reviewed academic and grey literature to document and classify the knowledge exchange techniques suggested and adopted by knowledge producers and users in the forest sciences globally. Characterizing this knowledge exchange landscape will provide new information about which techniques are used and their frequency, if there is evidence of effectiveness for particular techniques, and recommendations for best practices. This map will also show whether approaches to knowledge exchange differ between sectors (e.g. academia, government).3. We will create a systematic literature map as defined by the Collaboration for Environmental Evidence to capture case studies of, or theories about, knowledge exchange related to forest science. The search of peer-reviewed academic and grey literature will be conducted in English and French in two academic databases (BASE and Scopus) and one specialist database (ResearchGate). Candidate search strings will be evaluated against a test list of documents to determine strings with maximum sensitivity and specificity. Eligibility criteria will be applied to items at two screening stages: (1) title and abstract and (2) full-text. All screening decisions will be recorded in a database with 15% of full-text screening decisions validated. Items retained for inclusion will have data extracted according to a standardized strategy.Each reviewer conducting data extraction will have at least three of their extractions validated.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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In this article, we integrate our authorship experiences with insights from nine interviews of knowledge exchange practitioners at the Canadian Forest Service about challenges and opportunities of digital knowledge exchange (KE) brought on by the COVID-19 pandemic. We aim to inform how best to maintain effective KE practices and processes in a digital-first world. Interpersonal trust and relationships are pivotal to effective knowledge exchange; thus, removing these dimensions risks losing aspects of social learning, informal and meaningful discussions, and personal connections that affect how we interpret and respond to subtle affective and social cues. For KE practitioners, lack of in-person interactions risks internal KE coordination and relevance of KE work, and diminished ability to predict and respond to user needs. However, the accelerated digital adoption has increased reach and accessibility for diverse people to exchange knowledge, and enables more frequent and rapid response to issues and events by virtually gathering diverse people almost instantly. The acceleration in digital innovation and culture has thus resulted in new tools and diversified approaches for the KE toolbox to inform decisions and practices. The long-term sustainability and effectiveness of digital KE depend on two interconnected factors: addressing the persistence of the digital divide and people's abilities to make and maintain meaningful social connections in the absence of regular face-to-face contact. We thus offer three considerations to guide KE efforts and initiative in a digital-first world: (1) consider both digital divide and equity; (2) revisit user needs and preferences for KE to address the diversity of users, and (3) leverage the diversification of KE approaches and innovations.

Climate change is altering fire regimes. As fire regimes change, it is important to understand how mammals respond to these altered post-fire landscapes. Because fires vary in size, severity and landscape context, it is important to know the experimental designs and response variables used to address post-fire responses of mammals. We analysed 48 papers published from 1988 to 2015 that examined responses of small mammals to natural or prescribed fire in North American conifer forests. These papers used different experimental contrasts (e.g. burned vs unburned sites, time series, within-fire heterogeneity). Most studies (89.6%) presented species richness or index-derived abundances of common species as their response variable(s). Many studies did not fully describe the fires being examined; these omissions make it more difficult to interpret and compare results among studies. The limited scope of inference presented by the papers in this review leads us to recommend a minimal set of information that should be presented about each fire studied. We conclude by outlining how different experimental designs and response variables can be used for effective inference. We highlight major pathways forward for examining responses of small forest mammals to the important changes in fire regime that are occurring.

BackgroundThe Metabolic Theory of Ecology (MTE) predicts that gestation duration, lactation duration, and their sum, total development time, are constrained by mass-specific basal metabolic rate such that they should scale with body mass with an exponent of 0.25. However, tests of the MTE’s predictions have yielded mixed results. In an effort to resolve this uncertainty, we used phylogenetically-controlled regression to investigate the allometries of gestation duration, lactation duration, and total development time in four well-studied mammalian orders, Artiodactyla, Carnivora, Primates, and Rodentia.ResultsThe results we obtained are not consistent with the predictions of the MTE. Gestation duration scaling exponents are below 0.25 in all four orders. The scaling exponent for lactation duration is below 0.25 in Carnivora and Rodentia, indistinguishable from 0.25 in Artiodactyls, and steeper than 0.25 in Primates. Total development time scales with body mass as predicted by the MTE in Primates, but not in artiodactyls, carnivores, and rodents. In the latter three orders, the exponent is 0.15.ConclusionsTogether, these results indicate that the influence of basal metabolic rate on mammalian maternal investment durations must be more complicated than the MTE envisages, and that other factors must play an important role. Future research needs to allow for the possibility that different factors drive gestation duration and lactation duration, and that the drivers of the two durations may differ among orders.Electronic supplementary materialThe online version of this article (doi:10.1186/s12862-014-0194-z) contains supplementary material, which is available to authorized users.

Background: Large wildfires result in more heterogeneous fire scars than do smaller fires because of differences in landscape context and high variability in burn intensity and severity. Previous research on mammal response to wildfire has often considered all fires as comparable disturbances regardless of size. Here, we explicitly examine whether fire size affects relative abundances of a keystone herbivore, snowshoe hare (Lepus americanus Erxleben, 1777), in regenerating stands of the same age. We surveyed vegetation and fecal pellets of snowshoe hares in nine 13-year-old wildfires, specifically, three fires in three size categories-small (80 to 200 ha), medium (1000 to 5000 ha), and large (>10 000 ha)-and in mature forests in southern British Columbia, Canada. Results: Snowshoe hare density was low (0.4 hares ha −1), but hares were present at 57% of mature sites. Hares were absent from all areas where small fires had burned and were found in only one medium area post fire (0.2 hares ha −1). Hares were found within the fire scars of all three large burned areas, and with much higher numbers (3.8 hares ha −1) than in the medium fire area or mature forest. Snowshoe hare abundance was highly correlated with the number of sapling trees, especially lodgepole pine (Pinus contorta Douglas ex Loudon). Sapling densities were highly variable, but dense stands of saplings were found only in burn scars from large wildfires. Conclusions: Fire size is an important predictor of snowshoe hare relative abundance in areas that are regenerating post fire; fires of different sizes are not comparable disturbances. Specifically, the post-fire heterogeneity after large fires enabled both the highest hare numbers as well as patches with no hares. These results suggest that forest and wildlife managers should protect areas with dense regeneration post fire, as these sites are necessary for hares after large wildfires.

There is a growing body of literature that examines the role of affect and emotions in climate change risk perception and risk communication. Conceptions of affect and emotions have differed according to theoretical perspectives and disciplinary orientations (e.g., sociology of risk, psychology of risk, climate science communication), but little has been done to map these differences. This perspective article provides an in-depth analysis of the study of affect and emotions in climate change risk research through a literature review of studies published in the last 20 years. In this perspective, we examined how affect is conceived, what emotions have been considered, and their role in climate change risk perception and risk communication. Early studies in climate risk perception and risk communication included vaguely defined emotions (e.g., negative and positive) in climate risk perception and risk communication studies, more recently turning attention to how different affective dimensions interact with other factors, such as personal experience, knowledge, culture and worldviews, gender, and social norms. Using this review as a mapping exercise of the research landscape on affect and emotions in climate risk perception and communication, we suggest that future research could benefit from more interdisciplinary work that explores the role of different affective responses and their intensities before, during, and after climate-related events.