105 Works

Data and analysis from: Two centuries of monarch butterfly collections reveal contrasting effects of range expansion and migration loss on wing traits

Micah Freedman, Hugh Dingle, Sharon Strauss & Santiago Ramírez
Migratory animals exhibit traits that allow them to exploit seasonally variable habitats. In environments where migration is no longer beneficial, such as oceanic islands, migration-association traits may be selected against or be under relaxed selection. Monarch butterflies are best known for their continent-scale migration in North America but have repeatedly become established as non-migrants in the tropical Americas and on Atlantic and Pacific Islands. These replicated non-migratory populations provide natural laboratories for understanding the rate...

Data from: Injury alters motivational trade-offs in calves during the healing period

Cassandra Tucker & Sarah Adcock
Injury can produce long-lasting motivational changes that may alter decisions made under risk. Our objective was to determine whether a routine painful husbandry procedure, hot-iron disbudding, affects how calves trade off risk avoidance against a competing motivation (i.e., feeding), and whether this response depends on time since injury. We used a startle test to evaluate this trade-off in calves disbudded 0 or 21 days previously and non-injured control calves. For 3 days, calves were individually...

Data from: Habitat primarily structures seagrass epifaunal communities: a regional-scale assessment in the Chesapeake Bay

Claire Murphy, Jonathan Lefcheck & Robert Orth
Epifaunal invertebrates play an important role in seagrass systems, both by grazing epiphytic algae from seagrass blades and by acting as a major food source for higher trophic levels. However, while many studies have described epifaunal community properties at small spatial scales (1 – 10 m2) and across very large gradients (from continental coastlines to the entire globe), few have examined regional-scale (100 ­– 1000 km2) patterns or, more importantly, disentangled the drivers of these...

Sex and tissue-specific evolution of developmental plasticity in Drosophila melanogaster

Didem Sarikaya
Developmental plasticity influences the size of adult tissues in insects. Tissues can have unique responses to environmental perturbation during development, however, the prevalence of within species evolution of tissue-specific developmental plasticity remains unclear. To address this, we studied the effects of temperature and nutrition on wing and femur size in D. melanogaster populations from a temperate and tropical region. Wings were more sensitive to temperature, while wings and femurs were equally responsive to nutrition in...

Investigating unburned understory “halos” post-fire under blue oak (Quercus douglasii) canopies

Skyler Bennis, Sam Cormier, Angela Ma & Madeline Perreault
Oak trees profoundly impact California’s oak landscape biodiversity. Oaks influence growth in their understories and these community interactions have important ecological implications. Oaks can facilitate (positive) or interfere (negative) with understory productivity depending on tree characteristics such as variation in root morphology. Historically, California oak communities have been negatively affected by fire suppression, but they are now being impacted by increasing wildfire frequency. Despite their dominance in the woodland and savanna landscapes, there is a...

Registration Year

  • 2020

Resource Types

  • Dataset
  • Text
  • Software


  • University of California, Davis
  • University of California, Berkeley
  • United States Geological Survey
  • University of Minnesota
  • United States Department of Agriculture
  • University of Florida
  • University of California, Santa Cruz
  • Cornell University
  • SUNY Downstate Medical Center
  • California State University, Northridge