9 Works

Data from: Decipher soil organic carbon dynamics and driving forces across China using machine learning

Huiwen Li, Yiping Wu, Shuguang Liu, Jingfeng Xiao, Wenzhi Zhao, Ji Chen, Georgii Alexandrov & Yue Cao
The dynamics of soil organic carbon (SOC) play a critical role in modulating global warming. However, the long-term spatiotemporal changes of SOC at large scale and the impacts of driving forces remain unclear. In this study, we investigated the dynamics of SOC in different soil layers across China through the 1980s to 2010s using a machine learning approach and quantified the impacts of the key factors based on factorial simulation experiments. Our results showed that...

Stranger danger: A meta-analysis of the dear enemy hypothesis

Jo Werba, Adam Stuckert, Matthew Edwards & Michael McCoy
The dear enemy hypothesis predicts that territorial individuals will be less aggressive toward known neighbors than to strangers. This hypothesis has been well studied and there is a wealth of data demonstrating its prevelance among some taxa. However, a quantitative synthesis is needed to test the generality of the phenomenon, identify key mechanisms driving the behavior, and guide future research. Here we made a comprehensive collection of Dear Enemy data from 138 studies representing 105...

Can at-risk species serve as effective conservation surrogates? Case study in northeastern US shrublands

Melissa Bauer, Kathleen O'Brien & Adrienne Kovach
Targeted, single-species management and ecosystem-based management are generally considered disparate conservation approaches. In imperiled ecosystems, these approaches may be complementary, when habitat management for targeted at-risk species provides broad ecosystem benefits through an umbrella or surrogate species effect. In the northeastern United States, extensive management has been ongoing since 2011 to restore declining habitat for an at-risk shrubland habitat specialist, the New England cottontail (Sylvilagus transitionalis), with the goal that other shrubland-obligate wildlife will also...

ACE MAG SWEPAM 4-min merged IMF+plasma data

David McComas, Charles Smith, Ruth Skoug, Dot Delapp, Heather Elliott & Andrew Davis
ACE MAG and SWEPAM 4-min merged magnetic field and plasma parameter moments data at NASA Space Science Data Center.

Low-pH seawater alters indirect interactions in rocky-shore tidepools

Brittany Jellison, Brian Gaylord, Aaron Ninokawa, Kristen Elsmore, Gabriel Ng, Jeffrey Miller & Tessa Hill
Ocean acidification is expected to degrade marine ecosystems, yet most studies focus on organismal-level impacts rather than ecological perturbations. Field studies are especially sparse, particularly ones examining shifts in direct and indirect consumer interactions. Here we address such connections within tidepool communities of rocky shores, focusing on a three-level food web involving the keystone sea star predator, Pisaster ochraceus, a common herbivorous snail, Tegula funebralis, and a macroalgal basal resource, Macrocystis pyrifera. We demonstrate that...

Data from: Cereal rye mulch biomass and crop density affect weed suppression and community assembly in no-till planted soybean

Uriel Menalled, Guillaume ADEUX, Stéphane CORDEAU, Richard G. Smith, Steven B. Mirsky & Matthew Ryan

Soil chemical variables improve models of understory plant species distributions

Nathan Roe, Mark Ducey, Thomas Lee, Olivia Fraser, Robert Colter & Richard Hallett
Aim To determine the importance of soil variables relative to more commonly used topo-climatic or remotely sensed variables in species distribution models (SDMs) for understory plants. Location White Mountain National Forest, New Hampshire, U.S.A. Methods We fit models for presence of 41 forest understory plant species across 158 plots using soil, topographic, and spectral predictors to determine the relative contribution of different predictor types. We determined (a) if the potential importance of soil variables is...

Reevaluating trophic discrimination factors (Δδ13C and Δδ15N) for diet reconstruction

Ryan Stephens, Andrew Ouimette, Erik Hobbie & Rebecca Rowe
Stable isotope analysis is increasingly used to assess diet and trophic positions of animals. Such assessments require estimates of trophic discrimination factors (TDF — offset between the isotopic composition of diet and animal tissues), with imprecise applications of TDFs leading to biased conclusions in resource use. Because TDFs are unavailable for most species, ecologists often apply values from taxonomically similar species or use trophic step increases of about 1‰ for carbon (TDF-δ13C) and 3‰ for...

Target capture methods offer insight into the evolution of rapidly diverged taxa and resolve allopolyploid homeologs in the fern genus Polypodium s.s.

Jonas Mendez-Reneau, Erin Sigel & J. Gordon Burleigh
Like many fern lineages comprising reticulate species complexes, Polypodium s.s. (Polypodiacaeae) has a history shaped by rapid diversification, hybridization, and polyploidy that poses substantial challenges for phylogenetic inference with plastid and single-locus nuclear loci. Using target capture probes for 408 nuclear loci developed by the GOFlag project and a custom bioinformatic pipeline, SORTER, we constructed multi-locus nuclear datasets for diploid temperate and Mesoamerican species of Polypodium and five allotetraploid species belonging to the well-studied Polypodium...

Registration Year

  • 2022
    9

Resource Types

  • Dataset
    9

Affiliations

  • University of New Hampshire
    9
  • Xi'an Jiaotong University
    1
  • Los Alamos National Laboratory
    1
  • East Carolina University
    1
  • University of Louisiana at Lafayette
    1
  • Central South University of Forestry and Technology
    1
  • Agricultural Research Service
    1
  • University of Florida
    1
  • University of Hong Kong
    1
  • Smithsonian Environmental Research Center
    1