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Displaying 7,541 - 7,550 of 64,690 Publications- The biodiversity hypothesis posits that declining biodiversity may be responsible, at least in part, for the global increase in immune diseases. However, few studies have been able to demonstrate a link between exposure to biodiversity and specific health outcomes. We test whether exposure to plant diversity protects against childhood acute lymphoblastic leukemia (ALL) by promoting immune maturation. Our sample consisted of all children born in New Zealand from 1998 to 2013 (n = 899,126; 264 ALL cases), which we followed from birth to age five. We calculated plant-diversity metrics using...AuthorsGeoffrey Donovan, Demetrios Gatziolis, Andrea 't Mannetje, Robert Weinkove, Caroline Fyfe, Jeroen DouwesKeywordsSourceScience of The Total Environment. 768: 144627.Year2021
- A 30 × 30m-resolution gridded dataset of forest plot identifiers was developed for the conterminous United States (CONUS) using a random forests machine-learning imputation approach. Forest plots from the US Forest Service Forest Inventory and Analysis program (FIA) were imputed to gridded c2014 landscape data provided by the LANDFIRE project using topographic, biophysical, and disturbance variables. The output consisted of a raster map of plot identifiers. From the plot identifiers, users of the dataset can link to a number of tree- and plot-level attributes stored in the accompanying...AuthorsKarin Riley, Isaac C. Grenfell, Mark A. Finney, Jason M. WienerKeywordsSourceScientific Data. 8: 11.Year2021
- Sediment delivery following post‐fire logging is a concern relative to water quality. While studies have assessed the effect of post‐fire logging on sediment yields at different spatial scales, none have explicitly identified sediment sources. Our goal was to quantify post‐fire and post‐salvage logging sediment yields and use rill patterns to identify sediment sources. We measured the extent and type of logging disturbance, length of rills per unit area or “rill density”, ground cover, and sediment yields in nine logged and five control small catchments or “swales”, 0.09 to 0.81 ha, for 5...AuthorsWill H. Olsen, Joseph Wagenbrenner, Peter R. RobichaudKeywordsSourceHydrological Processes. 35(1): e13984.Year2021
- Understanding how the environment shapes genetic variation provides critical insight about the evolution of local adaptation in natural populations. At multiple spatial scales and multiple geographic contexts within a single species, such information could address a number of fundamental questions about the scale of local adaptation and whether or not the same loci are involved at different spatial scales or geographic contexts. We used landscape genomic approaches from three local elevational transects and rangewide sampling to (a) identify genetic variation underlying local adaptation to...AuthorsPaul F. Gugger, Sorel T. Fitz‐Gibbon, Ana Albarrán‐Lara, Jessica W. Wright, Victoria L. SorkKeywordsSourceMolecular Ecology. 30(2): 406-423Year2021
- Technology is transforming societies worldwide. A major innovation is the emergence of robotics and autonomous systems (RAS), which have the potential to revolutionize cities for both people and nature. Nonetheless, the opportunities and challenges associated with RAS for urban ecosystems have yet to be considered systematically. Here, we report the findings of an online horizon scan involving 170 expert participants from 35 countries. We conclude that RAS are likely to transform land use, transport systems and human–nature interactions. The prioritized opportunities were primarily centred...AuthorsPeter Manning, Peter Massini, Ian MacGregor-Fors, Stacey McLean, David D. Mkwambisi, Alessandro Ossola, Gabriel Pérez Luque, Luis Pérez-Urrestarazu, Katia Perini, Gad Perry, Tristan J. Pett, Kate E. Plummer, Raoufou A. Radji, Uri Roll, Simon G. Potts, Heather Rumble, Jon P. Sadler, Stevienna de Saille, Sebastian Sautter, Catherine E. Scott, Assaf Shwartz, Tracy Smith, Robbert P. H. Snep, Carl D. Soulsbury, Margaret C. Stanley, Tim Van de Voorde, Stephen J. Venn, Philip H. Warren, Carla-Leanne Washbourne, Mark Whitling, Nicholas S. G. Williams, Jun Yang, Kumelachew Yeshitela, Ken P. Yocom, Martin Dallimer, Mark A. Goddard, Zoe G. Davies, Solène Guenat, Mark J. Ferguson, Jessica C. Fisher, Adeniran Akanni, Teija Ahjokoski, Pippin M. L. Anderson, Fabio Angeoletto, Constantinos Antoniou, Adam J. Bates, Andrew Barkwith, Adam Berland, Christopher J. Bouch, Christine C. Rega-Brodsky, Loren B. Byrne, David Cameron, Rory Canavan, Tim Chapman, Stuart Connop, Steve Crossland, Colleen T. Downs, Marie C. Dade, David A. Dawson, Cynnamon Dobbs, Erle C. Ellis, Francisco J. Escobedo, Paul Gobster, Natalie Marie Gulsrud, Burak Guneralp, Amy K. Hahs, James D. Hale, Christopher Hassall, Marcus Hedblom, Dieter F. Hochuli, Tommi Inkinen, Ioan-Cristian Ioja, Dave Kendal, Tom Knowland, Ingo Kowarik, Simon J. Langdale, Susannah B. LermanKeywordsSourceNature Ecology & EvolutionYear2021
- Dams are among the most prevalent and extreme alterations humans have perpetrated on fluvial systems. The dramatic physical and biological changes caused by dams have been synthesized for many aquatic faunal groups, but not for crayfishes. In addition, invasive crayfish species are an increasing threat to global biodiversity, and dams have both costs and benefits with respect to crayfish invasions. North American crayfishes have imperiled native crayfishes in Europe, largely by hosting and spreading the crayfish plague pathogen Aphanomyces astaci that is lethal to European crayfishes. The...AuthorsZanethia C. Barnett, Susan B. AdamsKeywordsSourceFrontiers in Ecology and EvolutionYear2021
- National Forest Inventories (NFI) are designed to produce unbiased estimates of forest parameters at a variety of scales. These parameters include means and totals of current forest area and volume, as well as components of change such as means and totals of growth and harvest removals. Over the last several decades, there has been a steadily increasing demand for estimates for smaller geographic areas and/or for finer temporal resolutions. However, the current sampling intensities of many NFI and the reliance on design-based estimators often leads to inadequate precision of estimates at...AuthorsJohn W. Coulston, P Corey Green, Philip Radtke, Stephen Prisley, Evan Brooks, Valerie Thomas, Randolph Wynne, Harold E. BurkhartSourceForestry: An International Journal of Forest ResearchYear2021
- Whitebark pine, Pinus albicaulis Engelm., is a subalpine tree endemic to western North America. This species provides multiple ecosystem services and is suffering widespread mortality from mountain pine beetle, Dendroctonus ponderosae Hopkins. Verbenone is a pheromone produced as D. ponderosae feed, and high air concentrations of verbenone deter D. ponderosae from colonizing trees. Synthetic verbenone has been formulated into products used to prevent D. ponderosae from colonizing trees. We compared the ability of verbenone pouches and SPLAT Verb to protect individuals and small stands of...AuthorsRobert Progar, Christopher J. Fettig, A Steven Munson, Leif Mortenson, Cynthia Snyder, Sandra Kegley, Daniel Cluck, Brytten Steed, Agenor Mafra-Neto, Matthew J. RinellaKeywordsSourceJournal of Economic EntomologyYear2021
- The recent Californian hot drought (2012–2016) precipitated unprecedented ponderosa pine (Pinus ponderosa) mortality, largely attributable to the western pine beetle (Dendroctonus brevicomis; WPB). Broad-scale climate conditions can directly shape tree mortality patterns, but mortality rates respond non-linearly to climate when local-scale forest characteristics influence the behavior of tree-killing bark beetles (e.g., WPB). To test for these cross-scale interactions, we conduct aerial drone surveys at 32 sites along a gradient of climatic water deficit (CWD) spanning 350 km of latitude...AuthorsMichael J. Koontz, Andrew M. Latimer, Leif Mortenson, Christopher J. Fettig, Malcolm P. NorthSourceNature Communications. 12(1): 129Year2021
- In recent years, GIS and virtual auditing have been widely used to measure the built environment, and each method carries its strengths and weaknesses. To generate higher quality, more cost-effective, and less time-consuming measures, it is necessary to explore dual- or multi-method strategy toward sampling optimization, improvement of measurement, and enhancement of efficiency. To justify the proposed dual-method approach, the study has three major objectives. First, it examines the uncertainties associated with different sample sizes by using GIS to generate scenarios that contrast the...AuthorsWeimin Li, Patricia L. Winter, Lee-Anne Milburn, Pamela E. PadgettKeywordsSourceHealth & Place. 67: 102482Year2021