Ivy V. Widick

An Ecological Dipole in North American Mast‐Eating Small Mammal Dynamics

Jessica H. Barton, Ivy V. Widick, Benjamin Zuckerberg, Courtenay Strong et autres

Ecological dipoles are the opposite patterns in animal and plant population indices over time in geographically distant areas. Ecological dipoles are recently described macroscale patterns in animal and plant population dynamics, and have been uncovered in mast seeding and in migration patterns …

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Data and code from: An ecological dipole in North American mast-eating small mammal dynamics

Jessica H. Barton, Ivy V. Widick, Benjamin Zuckerberg, Courtenay Strong et autres

Spatio-temporal analysis of mast-eating small mammal populations at a continental scale using box-trapped small mammal data obtained from the National Ecological Observatory Network (NEON). This dataset submission includes a small mammal data file with metadata, a climate-data data file with metadata, and …

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Continent‐Wide Patterns of Climate and Mast Seeding Entrain Boreal Bird Irruptions

Ivy V. Widick, Courtenay Strong, Jalene M. LaMontagne, Matthew A. Young et autres

Avian irruptions are facultative, often periodic, migrations of thousands of birds outside of their resident range. Irruptive movements produce regional anomalies of abundance that oscillate over time, forming ecological dipoles (geographically disjunct regions of low and high abundance) at continental scales. Potential …

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A North American climate-masting-irruption teleconnection and its change under future climate

Husile Bai, Courtenay Strong, Jalene M. LaMontagne, Ivy V. Widick et autres

Atmospheric variability can impact biological populations by triggering facultative migrations, but the stability of these atmosphere-biosphere connections may be vulnerable to climate change. As an example, we consider the leading mode of continental-scale facultative migration of Pine Siskins, where the associated ecological …

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Poleward shifts and altered periodicity in boreal bird irruptions over six decades

Ivy V. Widick, Matthew A. Young, Jalene M. LaMontagne, Courtenay Strong et autres

Range boundaries are long-term biogeographic features of species distributions and abundance. However, many species demonstrate dynamic range boundaries, reflecting strong seasonal and annual variability in migratory behaviour. As a form of facultative migration, irruptions involve the movement of many individuals outside of …

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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 fear diet: Risk, refuge, and biological control by omnivorous weed seed predators

Ivy V. Widick, Jacob L. Berl, Ian Kaplan, Patrick A. Zollner et autres

• Predation risk cues can alter movements and diets of omnivorous biocontrol agents. • Mice use vegetated refuge in full moonlight, co-occurring with insect seed predators. • Moonlight had no impact on mouse trophic position, nor on weed seed predation. • Mice …

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Habitat complexity mediates spatiotemporal niche partitioning among native and invasive seed predators

Carmen K. Blubaugh, Anne E. McElvenny, Ivy V. Widick

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Habitat Complexity Mediates Spatiotemporal Nice Partitioning Among Native and Invasive Seed Predators

Carmen K. Blubaugh, Anne E. McElvenny, Ivy V. Widick

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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.

Foothill yellow-legged frog breeding biology in a semiregulated river, Humboldt County, CA

Michael van Hattem, William T. Bean, Pairsa N. Belamaric, Holly E. L. Gamblin et autres

River-breeding foothill yellow-legged frogs (Rana boylii) are endemic to California and Oregon. Across this wide geographic range, many populations have declined due habitat loss, non-native competitors and predators (e.g., American bullfrogs [Lithobates catesbeianus], Centrarchid fish), and disrupted water flow due to dams. …

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Data from: Daily activity patterns as an emerging means to explore ecological questions

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

Literature review data; answers to 21 questions.