Data from: Stranger than a scorpion: a reassessment of Parioscorpio venator, a problematic arthropod from the Llandoverian Waukesha LagerstätteEvan Anderson, James Schiffbauer, Sarah Jacquet, James Lamsdell, Joanne Kluessendorf & Donald Mikulic
A relatively uncommon arthropod of the Waukesha lagerstätte, Parioscorpio venator, is redescribed as an arthropod bearing a combination of characters that defy ready classification. Diagnostic features include sub-chelate ‘great appendages’, a lack of antennae, multiramous anterior trunk appendages, filamentous fan-like rear trunk appendages, and apparently thin and poorly preserved pleural fields. Phylogenetic analysis resolves this organism as basal to crown-group Mandibulata and Chelicerata, but its exact placement is inconclusive. Thus, we compare its morphology to...
The proliferation of energy rights-of-way (pipelines and powerlines; ROWs) in the central Appalachian region has prompted wildlife management agencies to consider ways to use these features to manage and conserve at-risk songbird species. However, little empirical evidence exists regarding best management strategies to enhance habitat surrounding ROWs for the songbird community during stopover or breeding periods. We used a before-after-control-impact design to study cut-back border (linear tree cuttings along abrupt forest edges) harvest width (15...
Several fungi, including the plant root symbiont and insect pathogen Metarhizium brunneum, produce lysergic acid amides via a branch of the ergot alkaloid pathway. Lysergic acid amides include important pharmaceuticals and pharmaceutical lead compounds and have potential ecological significance, making knowledge of their biosynthesis relevant. Many steps in the biosynthesis of lysergic acid amides have been determined, but terminal steps in the synthesis of lysergic acid α-hydroxyethylamide (LAH)––by far the most abundant lysergic acid amide...
Chemical analyses of three lysergic acid amide-producing Aspergillus species and sequences for phylogenetic analyses of associated enzymesDaniel Panaccione & Abigail Jones
Ergot alkaloids derived from lysergic acid have impacted humanity as contaminants of crops and as the bases of pharmaceuticals prescribed to treat dementia, migraines, and other disorders. Several plant-associated fungi in the Clavicipitaceae produce lysergic acid derivatives, but many of these fungi are difficult to culture and manipulate. Some Aspergillus species, which may be more ideal experimental and industrial organisms, contain an alternate branch of the ergot alkaloid pathway but none were known to produce...
Salix nigra (black willow) is a widespread tree that hosts many species of polylectic hymenopterans and oligolectic bees of the genus Andrena. The early flowering of S. nigra makes it an important nutritive resource for insects emerging from hibernation. However, since S. nigra is dioecious, not all insect visits will lead to successful pollination. Using both visual observation and pan-trapping we characterized the community of insects that visited S. nigra flowers and assessed differences among...
This dataset was used to create Figure 1 within the linked On the Nature of Things article. The article describes how botanists have historically contributed to the field of invasion biology and why botanists should be an important contributor in the coming years. To make this point, we compared the relative frequencies of google ngrams containing the words 'invasive species', 'invasive plants', or the sum of frequencies from several different animal taxa including: ‘invasive insects’,...
Winds aloft over three water bodies influence spring stopover distributions of migrating birds along the Gulf of Mexico coastHannah Clipp, Jeffrey Buler, Jaclyn Smolinsky, Kyle Horton, Andrew Farnsworth & Emily Cohen
Migrating birds contend with dynamic wind conditions that ultimately influence most aspects of their migration, from broad-scale movements to individual decisions about where to rest and refuel. We used weather surveillance radar data to measure spring stopover distributions of northward migrating birds along the northern Gulf of Mexico coast and found a strong influence of winds over non-adjacent water bodies, the Caribbean Sea and Atlantic Ocean, along with the contiguous Gulf of Mexico. Specifically, we...
Resource selection functions based on hierarchical generalized additive models provide new insights into individual animal variation and species distributionsJennifer McCabe, John Clare, Tricia Miller, Todd Katzner, Jeff Cooper, Scott Somershoe, David Hanni, Christine Kelly, Robert Sargent, Eric Soehren, Carrie Threadgill, Mercedes Maddox, Jonathan Stober, Mark Martell, Thomas Salo, Andrew Berry, Michael Lanzone, Melissa Braham & Christopher McClure
Habitat selection studies are designed to generate predictions of species distributions or inference regarding general habitat associations and individual variation in habitat use. Such studies frequently involve either individually indexed locations gathered across limited spatial extents and analyzed using resource selection functions (RSF), or spatially extensive locational data without individual resolution typically analyzed using species distribution models. Both analytical methodologies have certain desirable features, but analyses that combine individual- and population-level inference with flexible non-linear...
Long-term changes in occurrence, relative abundance, and reproductive fitness of bat species in relation to arrival of White-nose Syndrome in West Virginia, USACatherine Johnson, Donald Brown, Chris Sanders & Craig Stihler
White-nose syndrome (WNS) is a disease caused by the fungus Pseudogymnoascus destructans which has resulted in the deaths of millions of bats across eastern North America. To date, hibernacula counts have been the predominant means of tracking the spread and impact of this disease on bat populations. However, an understanding of the impacts of WNS on demographic parameters outside the winter season is critical to conservation and recovery of bat populations impacted by this disease....
West Virginia University9
University of Wisconsin-Madison2
Wichita State University1
North Carolina Wildlife Resources Commission1
West Virginia Division of Natural Resources1
South Dakota State University1
Georgia Department of Natural Resources1
University of New Hampshire1
University of Delaware1
University of Louisiana at Lafayette1