96 Works

Habitat heterogeneity captured by 30-m resolution satellite image texture predicts bird richness across the U.S.

Laura Farwell, Paul Elsen, Elena Razenkova, Anna Pidgeon & Volker Radeloff
Species loss is occurring globally at unprecedented rates, and effective conservation planning requires an understanding of landscape characteristics that determine biodiversity patterns. Habitat heterogeneity is an important determinant of species diversity, but is difficult to measure across large areas using field-based methods that are costly and logistically challenging. Satellite image texture analysis offers a cost-effective alternative for quantifying habitat heterogeneity across broad spatial scales. We tested the ability of texture measures derived from 30-m resolution...

Slave Movement -- Slave Ships of Eighteenth Century France, 1748-1756, 1763-1792

Philip D. Curtin

Characteristics of Census Tracts in Nine U.S. Cities, 1940-1960

David Elesh

Adaptive associations among life history, reproductive traits, environment, and origin in the Wisconsin angiosperm flora

Ricardo Kriebel, Thomas Givnish, John Zaborsky, Jeffrey Rose, Daniel Spalink, Donald Waller, Kenneth Cameron & Kenneth Sytsma
PREMISE OF THE STUDY: We tested 25 classic and novel hypotheses regarding trait-origin, trait-trait, and trait-environment relationships to account for flora-wide variation in life history, habit, and especially reproductive traits using a plastid DNA phylogeny of most native (96.6%, or 1494/1547 species) and introduced (87.5%, or 690/789 species) angiosperms in Wisconsin, USA. METHODS: We assembled data on life history, habit, flowering, dispersal, mating system, and occurrence across open/closed/mixed habitats across species in the state phylogeny....

Data from: Reticulate evolution helps explain apparent homoplasy in floral biology and pollination in baobabs (Adansonia; Bombacoideae; Malvaceae)

Nisa Karimi, Corrinne Grover, Jonathan Wendel, Joseph Gallagher, Cecile Ane & David Baum
Baobabs (Adansonia) are a cohesive group of tropical trees with a disjunct distribution in Australia, Madagascar, and continental Africa, and diverse flowers associated with two pollination modes. We used custom targeted sequence capture in conjunction with new and existing phylogenetic comparative methods to explore the evolution of floral traits and pollination systems while allowing for reticulate evolution. Our analyses suggest that relationships in Adansonia are confounded by reticulation, with network inference methods supporting at least...

Wisconsin Basic Needs Study, 1981-1982

Maurice MacDonald & Diane Colasanto

Patterns of Interracial Politics: Conflict and Cooperation in the City of Milwaukee, 1970

Peter Eisinger

Premarital Sexuality Among Young People, 1973

John DeLamater

International News Exposure and National Images in a Third World Setting, 1982

John T. McNelly & Fausto Izcaray

Government Crowd-Out of Private Contributions to Public Radio: An Empirical Study, 1990-1996

John Straub

Socioeconomic Role of Nicaraguan Women, 1977-1978

Barbara L. Wolfe

Within-crown variability in herbivore performance and leaf traits

Michael Eisenring, Unsicker Sybille B. & Lindroth Richard L.
Functional trait variation within individual plants is predicted to have important ecological consequences. However, our understanding of the sources contributing to subindividual trait heterogeneity, and the ramifications thereof, is poor. In a common garden, we sampled multiple genotypes of mature trembling aspen (Populus tremuloides) at different vertical crown levels and quantified the contributions of genetic, spatial and biotic (herbivory) factors to subindividual morphological and chemical leaf trait variance. Bioassays using gypsy moth (Lymantria dispar L.)...

Data from: Local adaptation and rapid evolution of aphids in response to genetic interactions with their cottonwood hosts

David Smith, Stuart Wooley, Eric Lonsdorf, Sarah Brown, Thomas Whitham, Stephen Shuster & Richard Lindroth
Several studies have demonstrated the ecological consequences of genetic variation within a single plant species. For example, these studies show that individual plant genotypes support unique composition of the plants’ associated arthropod community. By contrast, fewer studies have explored how plant genetic variation may influence evolutionary dynamics in the plant’s associated species. Here, we examine how aphids respond evolutionarily to genetic variation in their host plant. We conducted two experiments to examine local adaptation and...

Migrant farm workers in Wisconsin, 1989

Doris Slesinger

Puerto Rico's Padrones, 1779-1802

Francisco A. Scarano & Katherine J. Curtis

Research on Early Life and Aging Trends and Effects (RELATE), 1996-2008

Mary McEniry

Mixed-stock analysis using Rapture genotyping to evaluate stock-specific exploitation of a walleye population despite weak genetic structure

Peter Euclide, Matthew Faust, Tom MacDougall, Jason Robinson, Chris Wilson, Kuan-Yu Chen, Elizabeth Marschall, Wesley Larson & Stuart Ludsin
Mixed-stock analyses using genetic markers have informed fisheries management in cases where strong genetic differentiation occurs among local spawning populations, yet many fisheries are supported by multiple spawning stocks that are weakly differentiated. Freshwater fisheries exemplify this problem, with many harvested populations supported by multiple stocks of young evolutionary age and that are isolated across small spatial scales. As a result, attempts to conduct genetic mixed-stock analyses of inland fisheries have often been unsuccessful. Advances...

Data from: Disturbance detection in Landsat time series is influenced by tree mortality agent and severity, not by prior disturbance

Kyle Rodman, Robert Andrus, Thomas Veblen & Sarah Hart
Landsat time series (LTS) and associated change detection algorithms are useful for monitoring the effects of global change on Earth’s ecosystems. Because LTS algorithms can be easily applied across broad areas, they are commonly used to map changes in forest structure due to wildfire, insect attack, and other important drivers of tree mortality. But factors such as initial forest density, tree mortality agent, and disturbance severity (i.e., percent tree mortality) influence patterns of surface reflectance...

Thermal constraints on energy balance, behavior, and spatial distribution of grizzly bears

Savannah Rogers, Charles Robbins, Paul Mathewson, Anthony Carnahan, Frank Van Manen, Mark Haroldson, Warren Porter, Taylor Rogers, Terence Soule & Ryan Long
1. Heat dissipation limit theory posits that energy available for growth and reproduction in endotherms is limited by their ability to dissipate heat. In mammals, endogenous heat production increases markedly during gestation and lactation, and thus female mammals may be subject to greater thermal constraints on energy expenditure than males. Such constraints likely have important implications for behavior and population performance in a warming climate. 2. We used a mechanistic simulation model based on first...

Distinguishing Impatiens capensis from Impatiens pallida (Balsaminaceae) using leaf traits

Heather Whitfield & Rachel Toczydlowski
Impatiens capensis (orange jewelweed) and Impatiens pallida (yellow jewelweed) are annual species with similar phenotypes that grow in similar environments throughout the eastern United States. This makes them extremely difficult to distinguish when (chasmogamous) flowers are absent. We use morphometric analyses to identify leaf characters that distinguish these species. After collecting and scanning 342 leaves from plants of each species growing in co-occurring populations in Madison, WI, we quantified: leaf size, shape (using elliptical Fourier...

Human walking in the real world: interactions between terrain type, gait parameters, and energy expenditure

Daniel Kowalsky, John Rebula, Lauro Ojeda, Peter Adamczyk & Art Kuo
Humans often traverse real-world environments with a variety of surface irregularities and inconsistencies, which can disrupt steady gait and require additional effort. Such effects have, however, scarcely been demonstrated quantitatively, because few laboratory biomechanical measures apply outdoors. Walking can nevertheless be quantified by other means. In particular, the foot’s trajectory in space can be reconstructed from foot-mounted inertial measurement units (IMUs), to yield measures of stride and associated variabilities. But it remains unknown whether such...

Data from: Cooling cows efficiently with sprinklers: physiological responses to water spray

Cassandra B. Tucker, Karin E. Schütz &
Dairies in the United States commonly cool cattle with sprinklers mounted over the feed bunk that intermittently spray the cows’ backs. These systems use potable water—an increasingly scarce resource—but there is little experimental evidence about how much is needed to cool cows or about droplet size, which is thought to affect hair coat penetration. Our objectives were to determine how sprinkler flow rate and droplet size affect physiological measures of heat load in a hot,...

National Survey of Families and Households (NSFH), Wave 2 (1992-1994)

Larry L. Bumpass & James A. Sweet

National Survey of Families and Households (NSFH), Wave 1 (1987-1988)

Larry L. Bumpass, Vaughn Call & James A. Sweet

National Health Measurement Study (NHMS), 2005-2006

Dennis G. Fryback

Registration Year

  • 2020

Resource Types

  • Dataset


  • University of Wisconsin–Madison
  • University of Wisconsin-Madison
  • United States Geological Survey
  • University of Montana
  • Duke University
  • The Ohio State University
  • University of Georgia
  • Oregon State University
  • Lund University
  • Kırıkkale University