55 Works

Ectomycorrhizal fungal community assembly on seedlings of a Neotropical monodominant tree

Carolyn Delevich, Rachel Koch, M. Catherine Aime & Terry Henkel
Ectomycorrhizal tree species may benefit from positive plant-soil feedbacks, where soil environments near adult trees enhance conspecific seedling growth and survival. In tropical monodominant forests seedling survival is particularly important, as seedling banks help maintain stand-level dominance over generations. Positive plant-soil feedbacks may be mediated by diverse ectomycorrhizal fungal communities, which improve nutrient acquisition of heavily shaded seedlings. Despite the potential importance of these fungi, little is known about ectomycorrhizal fungal community development on seedlings...

TNT file for phylogenetic analysis of the moss class Polytrichopsida composed of morphological and sequence level characters

Jaakko Hyvönen, Jorge Flores, Neil Bell, Alexander Bippus & Alexandru Tomescu
PREMISE OF THE STUDY: When fossils are sparse in morphologically divergent lineages, phylogenetic analyses based on morphology may support hypotheses of relationships incongruent with those supported by gene sequence data. Integration of morphological and sequence data from conservative gene regions may reconcile such situations by circumscribing the search space of combined analyses. METHODS: We revisited the phylogeny of Polytrichopsida, a highly divergent group of mosses, in parsimony analyses. We supplemented the existing morphological matrix with...

Large herbivores facilitate an insect herbivore by modifying plant community composition in a temperate grassland

Xiaofei Li, Shengnan Wang, Chelse Prather, Ho Yi Wan, Hui Zhu, Petri Nummi, Moshe Inbar, Qiang Gao, Deli Wang & Zhiwei Zhong
Large herbivores often co-occur and share plant resources with herbivorous insects in grassland ecosystems, yet how they interact with each other remains poorly understood. We conducted a series of field experiments to investigate whether and how large domestic herbivores (sheep; Ovis aries) may affect the abundance of a common herbivorous insect (aphid; Hyalopterus pruni) in a temperate grassland of northeast China. Our exclosure experiment showed that three years (2010-2012) of sheep grazing had led to...

A tail of plumage colouration: disentangling geographic, seasonal, and dietary effects on plumage colour in a migratory songbird

Sean Mahoney
Plumage ornamentation in birds serves critical inter- and intra-sexual signaling functions. While carotenoid-based plumage colouration is often viewed as a classic condition dependent sexually selected trait, plumage colouration can be influenced by a wide array of both intrinsic and extrinsic factors. Understanding the mechanisms underlying variation in colouration is especially important for species where the signaling function of ornamental traits is complex or the literature conflicting. Here, we examined variation in the yellow/orange tail feathers...

The effects of a half century of warming and fire exclusion on montane forests of the Klamath Mountains, California, USA

Melissa DeSiervo & Erik Jules
These files are the raw data used in the manuscript "Effects of a half century of warming and fire exclusion on montane forests of the Klamath Mountains, California, USA" Manuscript authors: Erik S. Jules, Melissa H. DeSiervo, Matthew J. Reilly, Drew S. Bost, and Ramona J. Butz Climate warming and altered disturbance regimes are changing forest composition and structure worldwide. Given that species often exhibit individualistic responses to change, making predictions about the cumulative effects...

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  • Humboldt State University
  • United States Geological Survey
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  • United States Department of Agriculture
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