155,324 research outputs found

    Seeing The Forest Through The Trees: Considering Roost-Site Selection At Multiple Spatial Scales

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    Conservation of bat species is one of the most daunting wildlife conservation challenges in North America, requiring detailed knowledge about their ecology to guide conservation efforts. Outside of the hibernating season, bats in temperate forest environments spend their diurnal time in day-roosts. In addition to simple shelter, summer roost availability is as critical as maternity sites and maintaining social group contact. To date, a major focus of bat conservation has concentrated on conserving individual roost sites, with comparatively less focus on the role that broader habitat conditions contribute towards roost-site selection. We evaluated roost-site selection by a northern population of federally-endangered Indiana bats (Myotis sodalis) at Fort Drum Military Installation in New York, USA at three different spatial scales: landscape, forest stand, and individual tree level. During 2007–2011, we radiotracked 33 Indiana bats (10 males, 23 females) and located 348 roosting events in 116 unique roost trees. At the landscape scale, bat roost-site selection was positively associated with northern mixed forest, increased slope, and greater distance from human development. At the stand scale, we observed subtle differences in roost site selection based on sex and season, but roost selection was generally positively associated with larger stands with a higher basal area, larger tree diameter, and a greater sugar maple (Acer saccharum) component. We observed no distinct trends of roosts being near high-quality foraging areas of water and forest edges. At the tree scale, roosts were typically in American elm (Ulmus americana) or sugar maple of large diameter (\u3e30 cm) of moderate decay with loose bark. Collectively, our results highlight the importance of considering day roost needs simultaneously across multiple spatial scales. Size and decay class of individual roosts are key ecological attributes for the Indiana bat, however, larger-scale stand structural components that are products of past and current land use interacting with environmental aspects such as landform also are important factors influencing roost-tree selection patterns

    Seeing the forest through many trees: multi-taxon patterns of phylogenetic diversity in the Atlantic Forest hotspot

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    We combine phylogenetic and point locality data from selected lineages of the Atlantic Forest flora and fauna to compare spatial patterns of biodiversity sustained by the current configuration of forest remnants to a scenario of complete forest preservation. We then ask the question "how much biodiversity is likely lost, already"? Specifically, we assess how habitat loss likely impacted the climatic spaces occupied by the local species, the inferred composition of local communities and the spatial distribution of phylogenetic diversity and endemism

    Seeing the Forest through the Trees: A Review of Gibson and Brown’s Working with Qualitative Data

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    In their 2008 book, Working with Qualitative Data, Gibson and Brown introduce their readers to the notion that qualitative data analysis is more of an on-going process integral to the overall qualitative research process than a set of techniques or tools. In making this assertion, the authors help their audience connect analysis with theory, design, and final qualitative research repor

    Seeing the forest through the trees: prioritising potentially functional interactions from Hi-C.

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    Eukaryotic genomes are highly organised within the nucleus of a cell, allowing widely dispersed regulatory elements such as enhancers to interact with gene promoters through physical contacts in three-dimensional space. Recent chromosome conformation capture methodologies such as Hi-C have enabled the analysis of interacting regions of the genome providing a valuable insight into the three-dimensional organisation of the chromatin in the nucleus, including chromosome compartmentalisation and gene expression. Complicating the analysis of Hi-C data, however, is the massive amount of identified interactions, many of which do not directly drive gene function, thus hindering the identification of potentially biologically functional 3D interactions. In this review, we collate and examine the downstream analysis of Hi-C data with particular focus on methods that prioritise potentially functional interactions. We classify three groups of approaches: structural-based discovery methods, e.g. A/B compartments and topologically associated domains, detection of statistically significant chromatin interactions, and the use of epigenomic data integration to narrow down useful interaction information. Careful use of these three approaches is crucial to successfully identifying potentially functional interactions within the genome.Ning Liu, Wai Yee Low, Hamid Alinejad, Rokny, Stephen Pederson, Timothy Sadlon, Simon Barry, and James Bree

    J.R.R. Tolkien: the Forest and the City (2013), edited by Helen Conrad-O’Briain and Gerard Hynes.

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    J.R.R. Tolkien: the Forest and the City (2013), edited by Helen Conrad-O’Briain and Gerard Hynes. Book Review by Kelley M. Wickham-Crowle

    Seeing is Believing : The Capacity of the Manipulated Photograph to Represent Scenes of Mythology and the Supernatural

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    This illustrated paper explores the capacity of the manipulated photograph to represent scenes of mythology and the supernatural. Can a photograph, which is said to be an index of the real, render a mythical realm into a believable scene? Practices such a double exposures and combination printing have historically been used to create famous faked images of the supernatural, such as the Cottingley Fairy images and Spurgen’s photograph of the Loch Ness monster. The photograph has a causal link with reality and as such a carefully manipulated image has the power to deceive or persuade the viewer. In her photography project ‘Realm’ Carolyn Lefley explores this apparent truth-telling phenomenon by constructing double exposure photographs that create a layering of realities. A familiar domestic interior and a potentially mythological landscape combine to create scenes of make-believe, which reference texts such as Alice in Wonderland and The Lion, The Witch and the Wardrobe. Down the rabbit hole, through the looking glass and into the wardrobe, all of these paths lead from the realm of the real, into the realm of myth. The kingdom of Narnia is entered through an ordinary wardrobe. The photograph of a homely interior becomes a portal into a mythical realm. The idea of creating fictional realms and in essence writing new mythology is a practice known as mythopoeia, which fascinated authors such as JRR Tolkien, CS Lewis and George MacDonald. The photographs in ‘Realm’ depict new image-worlds of myth and wonder. Post-production techniques have been utilised to achieve these images. The paper will conclude with a consideration of the next era in photography, that of computer simulated reality. Sarah Kember notes in her book Virtual Anxiety that the veracity of the photograph is not threatened by this paradigm shift, suggesting that any representation only constructs an ‘image-idea’ of reality.Non peer reviewedFinal Accepted Versio
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