Resource pulses are rare events with a short duration and high magnitude that drive the dynamics of both plant and animal populations and communities. Mast seeding is perhaps the most common type of resource pulse that occurs in terrestrial ecosystems, is characterized by the synchronous and highly variable production of seed crops by a population of perennial plants, is widespread both taxonomically and geographically, and is often associated with nutrient scarcity. The rare production of...
Data from: Barn Owls select uncultivated habitats for hunting in a winegrape growing region of CaliforniaMatt Johnson
Large-scale conversion of uncultivated land to agriculture threatens wildlife and can diminish ecosystem services provided by nature. Understanding how wildlife provision ecosystem services may incentivize wildlife conservation in agricultural landscapes. Attracting Barn Owls (Tyto furcata) to nest on farms for pest management has been implemented worldwide, but has not been evaluated in vineyard agroecosystems. Napa Valley, California is a renowned winegrape growing region, and viticulturists encourage Barn Owl occupancy to help minimize damage from Botta’s...
The Pacific lamprey genomic divergence, association mapping, temporal Willamette Falls, spatial rangewide datasetsJon Hess, Jeramiah Smith, Nataliya Timoshevskaya, Cyndi Baker, Christopher Caudill, David Graves, Matthew Keefer, Andrew Kinziger, Mary Moser, Laurie Porter, Greg Silver, Steven Whitlock & Shawn Narum
High rates of dispersal can breakdown coadapted gene complexes. However, concentrated genomic architecture (i.e., genomic islands of divergence) can suppress recombination to allow evolution of local adaptations despite high gene flow. Pacific lamprey (Entosphenus tridentatus) is a highly dispersive anadromous fish. Observed trait diversity and evidence for genetic basis of traits suggests it may be locally adapted. We addressed whether concentrated genomic architecture could influence local adaptation for Pacific lamprey. Using two new whole genome...
We demonstrate the power of combining two emergent tools for resolving rangewide metapopulation dynamics. First, we employed environmental DNA (eDNA) surveys to efficiently generate multi-season rangewide site occupancy histories. Second, we developed a novel dynamic, spatial multiscale occupancy model to estimate metapopulation dynamics. The model incorporates spatial relationships, explicitly accounts for non-detection bias and allows direct evaluation of the drivers of extinction and colonization. We applied these tools to examine metapopulation dynamics of endangered tidewater...
Data from: An Early Devonian actinostelic euphyllophyte with secondary growth from the Emsian of Gaspé (Canada) and the importance of tracheid wall thickening patterns in early euphyllophyte systematicsKelly Pfeiler & Alexandru Tomescu
Secondary growth is a tracheophyte structural feature whose earliest known occurrence dates to the late Pragian-early Emsian. Armoricaphyton, Franhueberia and an unnamed plant from eastern Canada represent the only instances of secondary growth documented to date for the Early Devonian. Here, we describe a new Early Devonian euphyllophyte exhibiting secondary growth, from the Emsian (c. 400-395 Ma) Battery Point Formation (Québec, Canada): Gmujij tetraxylopteroides gen. et sp. nov. is characterized by a mesarch actinostele with...
Data on universities offering undergraduate degrees that train students for soil science careers at universities in the USA and its territoriesEric C. Brevik, Holly Dolliver, Susan Edinger-Marshall, Danny Itkin, Jodi Johnson-Maynard, Garrett Liles, Monday Mbila, Colby Moorberg, Yaniria Sanchez-De Leon, Joshua J. Steffan, April Ulery & Karen Vaughan
Several soil science education studies over the last 15 years have focused on the number of students enrolled in soil science programs. However, no studies have quantitatively addressed the number of undergraduate soil science preparatory programs that exist in the United States, which means we do not have solid data concerning whether overall program numbers are declining, rising, or holding steady. This also means we do not have complete data on the same trends for...
Patterns of speciation are similar across mountainous and lowland regions for a Neotropical plant radiation (Costaceae: Costus)Oscar M. Vargas, Brittany Goldston, Dena Louise Grossenbacher & Kathleen M. Kay
High species richness and endemism in tropical mountains are recognized as major contributors to the latitudinal diversity gradient. The processes underlying mountain speciation, however, are largely untested. The prevalence of steep ecogeographic gradients and the geographic isolation of populations by topographic features are predicted to promote speciation in mountains. We evaluate these processes in a species-rich Neotropical genus of understory herbs that range from the lowlands to montane forests and have higher species richness in...
Humboldt State University7
University of Idaho2
California Polytechnic State University1
University of Washington1
New Mexico State University1
Oregon Department of Fish and Wildlife1
University of Wyoming1
Columbia River Inter-Tribal Fish Commission1
Dickinson State University1
California State University, Chico1