Devyn Orr

Data and code from: Plant species responses to nutrient addition, but not to herbivore exclusion, strengthen over time in global grasslands

Wenhuai Li, Elizabeth T. Borer, Eric W. Seabloom, Carly Stevens et autres

Nutrient enrichment and altered herbivory are among the most pervasive drivers of change in grasslands worldwide, yet how their effects on plant communities accumulate or fade over time, and which species drive those effects, remains poorly resolved. Using long-term data from the …

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Nutrient Network Subset for: Climate influences how belowground traits regulate grassland biomass

Nutrient Network (NutNet), Elizabeth T. Borer, Eric W. Seabloom, Ingrid J. Slette et autres

This dataset contains plot-level observations of aboveground biomass, community-weighted mean (CWM) plant traits, trait coverage metrics, and environmental variables across grassland sites compiled from the Nutrient Network (NutNet). Data collection followed the standardized Nutrient Network protocols described in Borer et al. (2014). …

us, jp, ar, fi, nl, is, no, au, ie, ca, gb, cn, se, de, ch, pl, Afrique du Sud, kr, ee, mn, es (code pays fourni par la source)

Nutrient Network Subset for: Climate influences how belowground traits regulate grassland biomass

Nutrient Network (NutNet), Elizabeth T. Borer, Eric W. Seabloom, Ingrid J. Slette et autres

This dataset contains plot-level observations of aboveground biomass, community-weighted mean (CWM) plant traits, trait coverage metrics, and environmental variables across grassland sites compiled from the Nutrient Network (NutNet). Data collection followed the standardized Nutrient Network protocols described in Borer et al. (2014). …

us, jp, ar, fi, nl, is, no, au, ie, ca, gb, cn, se, de, ch, pl, Afrique du Sud, kr, ee, mn, es (code pays fourni par la source)

Bee Communities and Patterns in Flower Visitation in Crested Wheatgrass Seedings in Eastern Oregon Sagebrush Steppe

Stella M. Copeland, Devyn Orr, Skyler Burrows, Zoe N. Vavrek et autres

Management effects on bee communities, and their relationships with plant communities, are poorly understood in many rangelands such as sagebrush steppe, an ecosystem threatened by broadscale degradation associated with invasive species and other factors. Large areas of sagebrush steppe have been seeded …

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Synthesizing the ecological impacts of disturbance on wildlife in pinyon‐juniper ecosystems

Sarah Halperin, Madelon F. Case, Peter S. Coates, Todd E. Katzner et autres

Abstract Pinyon and juniper ecosystems in the interior western United States are undergoing changes due to wildfire, drought, climate change, and associated disturbance agents (e.g., insect outbreak), while also infilling within some existing woodlands and expanding into other ecosystems (e.g., sagebrush). These …

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Interactive Effects of Climate and Large Herbivore Assemblage Drive Plant Functional Traits and Diversity

Maggie Klope, Ruby Harris-Gavin, Stephanie Copeland, Devyn Orr et autres

Large herbivore communities are changing globally, with populations of wild herbivores generally declining while domestic herbivore populations are increasing, influencing ecosystem function along with the impacts of climate change. Manipulative experiments have rarely captured the interaction between patterns of large herbivore assemblage …

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Forb diversity globally is harmed by nutrient enrichment but can be rescued by large mammalian herbivory

Rebecca A. Nelson, Lauren L. Sullivan, Erika I. Hersch‐Green, Eric W. Seabloom et autres

Forbs ("wildflowers") are important contributors to grassland biodiversity but are vulnerable to environmental changes. In a factorial experiment at 94 sites on 6 continents, we test the global generality of several broad predictions: (1) Forb cover and richness decline under nutrient enrichment, …

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Variable effects of wildlife and livestock on questing tick abundance across a topographical–climatic gradient

Stephanie Copeland, Samantha Sambado, Devyn Orr, An Bui et autres

Abstract Large‐bodied wild ungulates are declining worldwide, while domestic livestock continue to increase in abundance. Such changes in large herbivore communities should have strong effects on the control of ticks and tick‐borne disease as they can indirectly modify habitat and directly serve …

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Forb diversity globally is harmed by nutrient enrichment but can be rescued by large mammalian herbivory

Rebecca A. Nelson, Lauren L. Sullivan, Erika I. Hersch‐Green, Eric W. Seabloom et autres

us, ar, pt, br, gb, au, ca, ie, de, fi, Afrique du Sud, nl, be, fr, ch (code pays fourni par la source)

Nothing lasts forever: Dominant species decline under rapid environmental change in global grasslands

Peter A. Wilfahrt, Eric W. Seabloom, Jonathan D. Bakker, Lori Biederman et autres

Abstract Dominance often indicates one or a few species being best suited for resource capture and retention in a given environment. Press perturbations that change availability of limiting resources can restructure competitive hierarchies, allowing new species to capture or retain resources and …

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Leaving more than footprints: Anthropogenic nutrient subsidies to a protected area

Ana Sofía Guerra, An Bui, Maggie Klope, Devyn Orr et autres

Abstract Mobile animals that traverse ecosystem boundaries can fundamentally reshape environments by providing critical nutrient and energy inputs to the ecosystems they inhabit. In particular, aggregations of seabirds often transform coastal and island ecosystems through large amounts of nutrient‐rich guano deposition. Anthropogenically …

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Grazing Intensity Effects on Fire Ignition Risk and Spread in Sagebrush Steppe

Devyn Orr, Jonathan D. Bates, Kirk W. Davies

Wildfire activity is accelerating on many rangelands worldwide, yet the potential for grazing to be used as a fire management tool remains largely unknown. Particularly, little is known about the influence of grazing on ignition and initial spread of fire, as well …

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