Data from: Environmental change, if unaccounted, prevents detection of cryptic evolution in a wild populationTomos Potter, Ronald D. Bassar, Paul Bentzen, Emily W. Ruell, Julián Torres-Dowdall, Corey A. Handelsman, Cameron K. Ghalambor, Joseph Travis, David N. Reznick & Tim Coulson
Detecting contemporary evolution requires demonstrating that genetic change has occurred. Mixed-effects models allow estimation of quantitative genetic parameters and are widely used to study evolution in wild populations. However, predictions of evolution based on these parameters frequently fail to match observations. Furthermore, such studies often lack an independent measure of evolutionary change against which to verify predictions. Here, we applied three commonly used quantitative genetic approaches to predict the evolution of size at maturity in...
The mass of a bird’s egg is a critical attribute of the species’ life history and represents a fundamental component of reproductive effort. Indeed, the trade-off between the number of eggs in a clutch and clutch mass lies at the heart of understanding how environmental attributes such as nest predation or adult mortality influence reproductive investment. However, egg masses have not been reported for the majority of avian species. We capitalized on the strong allometric...
Delimiting biodiversity units is difficult in organisms in which differentiation is obscured by hybridization, plasticity, and other factors that blur phenotypic boundaries. Such work is more complicated when the focal units are subspecies, the definition of which has not been broadly explored in the era of modern genetic methods. Eastwood manzanita (Arctostaphylos glandulosa Eastw.) is a widely distributed and morphologically complex chaparral shrub species with much subspecific variation that has proven challenging to categorize. Currently...
Data from: Floral bagging differentially affects handling behaviors and single-visit pollen deposition by honey bees and native beesJacob Cecala, Pierre Lau & Joan Leong
Measurements of pollinator performance are crucial to pollination studies, enabling researchers to quantify the relative value of different pollinator species to plant reproduction. One of the most widely employed measures of pollinator performance is single-visit pollen deposition, the number of conspecific pollen grains deposited to a stigma after one pollinator visit. To ensure a pollen-free stigma, experimenters must first bag flowers before exposing them to a pollinator. Bagging flowers, however, may unintentionally manipulate floral characteristics...
Species complex diversification by host plant use in an herbivorous insect: The source of Puerto Rican cactus mealybug pest and implications for biological controlDaniel Poveda-Martínez, María Aguirre, Guillermo Logarzo, Stephen D. Hight, Serguei Triapitsyn, Hilda Diaz-Soltero, Marcelo Vitorino & Esteban Hasson
Cryptic taxa have often been observed in the form of host‐associated species that diverged as the result of adaptation to alternate host plants. Untangling cryptic diversity in species complexes that encompass invasive species is a mandatory task for pest management. Moreover, investigating the evolutionary history of a species complex may help to understand the drivers of their diversification. The mealybug Hypogeococcus pungens was believed to be a polyphagous species from South America and has been...
We report microplastic densities on windward beaches of Oahu, Hawai`i, USA. Microplastic densities, surveyed on six Oahu beaches, were highest on the beaches with the coarsest sands, associated with high wave energy. On those beaches, densities were very high (700-1700 particles m-2), as high as those recorded on other remote island beaches worldwide.
Pigmentation Genes Show Evidence of Repeated Divergence and Multiple Bouts of Introgression in Setophaga WarblersDavid Toews, Marcella Baiz, Andrew Wood, Alan Brelsford & Irby Lovette
Species radiations have long served as model systems in evolutionary biology. However, it has only recently become possible to study the genetic bases of the traits responsible for diversification, and only in a small number of model systems. Here we use genomes of 36 species of North, Central, and South American warblers to highlight the role of pigmentation genes—involved in melanin and carotenoid processing—in the diversification of this group. We show that agouti signaling protein...
The present study examined the role of exogenous and endogenous attention in task relevant visual perceptual learning (TR-VPL). VPL performance was assessed by examining the learning to a trained stimulus feature and transfer of learning to an untrained stimulus feature. To assess the differential role of attention in VPL, two types of attentional cues were manipulated; exogenous and endogenous. In order to assess the effectiveness of the attentional cue, the two types of attentional cues...
Data from: Mark-recapture experiments reveal foraging behavior and plant fidelity of native bees in plant nurseriesJacob Cecala & Erin Wilson Rankin
Understanding the spatial and temporal foraging patterns of pollinators is essential to conserving these organisms in human‐modified landscapes, such as agroecosystems (Cranmer et al. 2011). Particularly, understanding foraging fidelity (i.e., returns to a particular plant species or area) is crucial for providing supportive habitats. Numerous approaches have been used to discern the movement and foraging of individual bees (reviewed by Mola and Williams 2019), ranging from highly technological to more traditional methods like mark–release–recapture experiments....
Social context, but not individual personality, alters immigrant viability in a spider with mixed social structureJessica Purcell, Spencer Ingley, Jonathan Pruitt & Inon Scharf
Immigrant viability is a major determinant of the realized rate of gene flow across populations. For social organisms, the social context in which immigrants disperse across contrasting environments may have important implications for their viability post dispersal. Here, we use social spiders whose individual personalities as well as group personality compositions vary across sites to test whether the strength of selection against immigrants (i.e. mortality rates) differs depending on whether spiders are transplanted (1) as...
University of California, Riverside62
United States Department of Agriculture3
Imperial College London3
University of California, Irvine3
University of Montana2
University of California, Merced2
University of California, San Diego2
San Diego State University2