Savannah L. Bartel

Apex Scavenger Declines Have Cascading Effects on Soil Biogeochemistry and Ecosystem Processes

T. A. Stephenson, David William Crowder, Ernest D. Osburn, Michael S. Strickland et autres

Global apex scavenger declines strongly alter food web dynamics, but studies rarely test whether trophic downgrading impacts ecosystem functions. Here, we leverage a unique, disease-induced gradient in Tasmanian devil (Sarcophilus harrisii ) population densities to assess feedbacks between carcass persistence, subordinate scavenger …

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Decline of an apex vertebrate scavenger increases carrion use by invertebrates

Savannah L. Bartel, Laurel Lynch, T. A. Stephenson, Menna E. Jones et autres

Apex consumers are declining worldwide. While the effects of apex predator declines on ecosystems are widely documented, the cascading effects of apex scavenger declines are poorly understood. We evaluated whether disease-induced declines of an apex scavenger, the Tasmanian devil (Sarcophilus harrisii), increased …

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Wildfire and Postfire Restoration Treatments Have Lasting Effects on Rodent Habitat and Community Composition

Savannah L. Bartel, Robert S. Arkle, David S. Pilliod

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Deer Vigilance and Movement Behavior Are Affected by Edge Density and Connectivity

Savannah L. Bartel, Leotie Hakkila, John L. Orrock

ABSTRACT Animal behavior is an important component of individual, population, and community responses to anthropogenic habitat alteration. For example, antipredator behavior (e.g., vigilance) and animal movement behavior may both be important behavioral responses to the increased density of habitat edges and changes …

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Global change influences scavenging and carrion decomposition

Savannah L. Bartel, Torrey Stephenson, David William Crowder, Menna E. Jones et autres

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White-tailed deer responses to acoustic predator cues are contingent upon past land use and contemporary fire regime

Savannah L. Bartel, John Carlisle Kilgo, John L. Orrock

Abstract Prey can assess the immediate risk of predation by detecting cues of predator presence, and it is expected that prey should invest in costly antipredator behaviors when a cue of predator presence is detected. Features of the habitat in which the …

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Land-use history, fire regime, and large-mammal herbivory affect deer-preferred plant diversity in longleaf pine woodlands

Savannah L. Bartel, John L. Orrock

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Channel Island Foxes (Urocyon littoralis) are Viable Seed Dispersal Agents of Toyon (Heteromeles arbutifolia)

Savannah L. Bartel, Juliann Schamel, Bridget A. Parrino, Melissa K. Marshall et autres

Los mamíferos que consumen frutos carnosos y dejan semillas viables en sus excrementos pueden ser importantes agentes de dispersión de semillas de plantas. A pesar de que, se sabe que el zorro isleño (Urocyon littoralis) consume grandes cantidades de frutos carnosos, se …

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Channel Island foxes (Urocyon littoralis) are viable seed dispersal agents of toyon

Savannah L. Bartel, Juliann Schamel, Bridget A. Parrino, Melissa K. Marshall et autres

Mammals that consume fleshy fruit and deposit viable seeds in their scat can be important agents of seed dispersal for plants. Despite the knowledge that the island fox (Urocyon littoralis) consumes large quantities of fleshy fruits, it is unknown whether seeds survive …

Daily activity timing in the Anthropocene

Neil A. Gilbert, Kate A. McGinn, Laura A. Nunes, Amy A. Shipley et autres

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The important role of animal social status in vertebrate seed dispersal

Savannah L. Bartel, John L. Orrock

Seed dispersal directly affects plant establishment, gene flow and fitness. Understanding patterns in seed dispersal is, therefore, fundamental to understanding plant ecology and evolution, as well as addressing challenges of extinction and global change. Our ability to understand dispersal is limited because …

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Data from: Activity timing in the Anthropocene

Neil Gilbert, Kate A. McGinn, Laura A. Nunes, Amy A. Shipley et autres

Literature review data; answers to 21 questions.