A5047788892- Animal Behavior and Reproduction
- Plant and animal studies
- Orthoptera Research and Taxonomy
- Genetic diversity and population structure
- Insect and Arachnid Ecology and Behavior
- Animal Vocal Communication and Behavior
- Evolution and Genetic Dynamics
- Evolutionary Game Theory and Cooperation
- Viral Infections and Vectors
- Neuroendocrine regulation and behavior
- Isotope Analysis in Ecology
- Diptera species taxonomy and behavior
- Plant Parasitism and Resistance
- Plant Water Relations and Carbon Dynamics
- Lepidoptera: Biology and Taxonomy
- Study of Mite Species
- Hemiptera Insect Studies
- Ecology and Vegetation Dynamics Studies
- Amphibian and Reptile Biology
- Avian ecology and behavior
- Wildlife Ecology and Conservation
- Evolutionary Psychology and Human Behavior
University of Denver
2021-2023
University of Colorado Boulder
2014-2022
Bowdoin College
2012
The large body of theory on speciation with gene flow has brought to light fundamental differences in the effects two types mating rules speciation: preference/trait rules, which divergence both (female) preferences and (male) traits is necessary for assortment, matching individuals mate like basis presence or alleles that they have common. These can emerge from a variety behavioral other mechanisms ways are not always obvious. We discuss theoretical properties explain why generally thought...
Theory predicts that social interactions are dynamically linked to phenotype. Yet because difficult quantify, little is known about the precise details on how interactivity Here, we deployed proximity loggers North American barn swallows (Hirundo rustica erythrogaster) examine intercorrelations among interactions, morphology and features of phenotype sensitive context: stress-induced corticosterone (CORT) gut microbial diversity. We analysed relationships at two spatial scales interaction:...
Abstract Inadvertent cues can be refined into signals through coevolution between signalers and receivers, yet the earliest steps in this process remain elusive. In Hawaiian populations of Pacific field cricket, a new morph producing novel incredibly variable song (purring) has spread across islands. Here we characterize current sexual natural selection landscape acting on signal by (1) determining fitness advantages purring attraction to mates protection from prominent deadly enemy, (2)...
Abstract Signal traits are often linked with the physiological state and behavior of their bearer. Direct examination causal links among these variables has provided substantial insight into information content signals, costs benefits signal expression. Yet recent empirical work suggests that social context in which signals developed displayed can play a major role not only how received, but also coordinating mediating signaling phenotype itself. Here we review both well-established emerging...
Migratory divides are contact zones between breeding populations with divergent migratory strategies during the nonbreeding season. These locations provide an opportunity to evaluate role of seasonal migration in maintenance reproductive isolation, particularly relationship population structure and features associated distinct strategies. We combine light-level geolocators, genomic sequencing, stable isotopes investigate timing routes individuals on either side a divide coinciding...
Proximity logging is a new tool for understanding social behavior as it allows accurate quantification of networks. We report results from field calibration and deployment tests miniaturized proximity tags (Encounternet), digital transceivers that log encounters between tagged individuals. examined radio signal in relation to tag attachment (tag, on bird, saline-filled balloon) understand how strength affected by the mounting technique used tests. investigated inter-tag inter-receiver...
Infection by eastern dwarf mistletoe (Arceuthobium pusillum) modifies needle and branch morphology hastens white spruce (Picea glauca) mortality. We examined potential causal mechanisms assessed the impacts of infection-induced alterations to host development performance across scales ranging from hormone contents bole expansion. Needles on infected branches (IBs) possessed higher total cytokinin (CK) lower abscisic acid than needles uninfected (UBs). IBs exhibited greater xylem growth...
Animals eavesdrop on signals and cues generated by prey, predators, hosts, parasites, competing species, conspecifics, the conspicuousness of sexual makes them particularly susceptible. Yet, when evolve, most attention is paid to impacts intended receivers (potential mates) rather than fitness consequences for eavesdroppers. Using rapidly evolving interaction between Pacific field cricket,
How novel phenotypes evolve is challenging to imagine because traits are often underlain by numerous integrated phenotypic components, and changes any one form can disrupt the function of entire module. Yet do emerge, research on adaptive evolution suggests that complex diverge while either maintaining existing form-function relationships or through innovations alter relationships. these alternate routes contribute sexual signal poorly understood, despite role signals in generating...
Behavior can strongly influence rates and patterns of hybridization between animal populations species. Yet few studies have examined reproductive behaviors in natural hybrid zones within the fine-scale social context which they naturally occur. We use radio-frequency identification tags with network analyses to test whether phenotypic similarity plumage mass correlate behavior throughout a breeding season California Gambel's quail zone. novel approach partition variation way that does not...
Divergence of sexual signals between populations can lead to speciation, yet opportunities study the immediate aftermath novel signal evolution are rare. The recent emergence and spread a new mating song, purring, in Hawaiian Pacific field cricket (Teleogryllus oceanicus) allows us investigate population divergence soon after origin signal. Male crickets produce songs with specialized wing structures attract mates from afar (calling) entice them mate when found (courtship). However, Hawaii,...
Mating behaviour and the timing of reproduction can inhibit genetic exchange between closely related species; however, these reproductive barriers are challenging to measure within natural populations. Social network analysis provides promising tools for studying social context hybridization, variation, more generally. We test how networks a hybrid population California Callipepla californica Gambel's quail gambelii change over discrete periods breeding season. assess patterns phenotypic...