A5102727328- Genetic diversity and population structure
- Wildlife Ecology and Conservation
- Plant and animal studies
- Marine Bivalve and Aquaculture Studies
- Animal Behavior and Reproduction
- Marine Biology and Ecology Research
- Marine Ecology and Invasive Species
- Amphibian and Reptile Biology
- Aquatic Invertebrate Ecology and Behavior
- Insect and Arachnid Ecology and Behavior
- Insect and Pesticide Research
- Species Distribution and Climate Change
- Genetic and phenotypic traits in livestock
- Marine and coastal plant biology
- Aquatic life and conservation
- Coral and Marine Ecosystems Studies
- Ichthyology and Marine Biology
- Aquaculture disease management and microbiota
- Animal Ecology and Behavior Studies
- Genomics and Phylogenetic Studies
- Marine Biology and Environmental Chemistry
- Marine and fisheries research
- Aquaculture Nutrition and Growth
- Avian ecology and behavior
- Ecology and Vegetation Dynamics Studies
University of Central Florida
2015-2024
Georgia Institute of Technology
2007-2008
Oregon State University
1999-2004
University of Illinois Urbana-Champaign
1999
Wayne State University
1971
Human-aided transport is responsible for many contemporary species introductions, yet the contribution of human-aided to dispersal within non-native regions less clear. Understanding dynamics invasive can streamline mitigation efforts by targeting routes that contribute disproportionally spread. Because its limited natural ability, rapid spread Asian tiger mosquito (Aedes albopictus) has been attributed transport, but until now, relative roles and movement have not rigorously evaluated....
Abstract Aim Levels of genetic diversity can be used to determine haplotype frequency, population size and patterns invasive species distribution. In this study, we sought investigate the structure marine mussel Mytella charruana compare variation from populations with found within three native populations. Location Invaded areas in USA (Florida, Georgia); Ecuador, Colombia Brazil. Methods We sequenced 722 bp mitochondrial COI gene 83 M. samples four (USA) 71 two natural (Ecuador, Columbia)....
Organisms are capable of developing different phenotypes by altering the genes they express. This phenotypic plasticity provides a means for species to respond effectively environmental conditions. One most dramatic examples occurs in highly social hymenopteran insects (ants, bees, and wasps), where distinct castes sexes all arise from same genes. To elucidate how variation patterns gene expression affects variation, we conducted study simultaneously address influence developmental stage,...
Abstract This article documents the addition of 283 microsatellite marker loci to Molecular Ecology Resources Database. Loci were developed for following species: Agalinis acuta ; Ambrosia artemisiifolia Berula erecta Casuarius casuarius Cercospora zeae‐maydis Chorthippus parallelus Conyza canadensis Cotesia sesamiae Epinephelus acanthistius Ficedula hypoleuca Grindelia hirsutula Guadua angustifolia Leucadendron rubrum Maritrema novaezealandensis Meretrix meretrix Nilaparvata lugens...
It has recently become practicable to estimate the effective sizes (N(e) ) of multiple populations within species. Such efforts are valuable for estimating N(e) in evolutionary modeling and conservation planning. We used microsatellite loci 90 four ranid frog species (20-26 per species, mean n population = 29). Our objectives were determine typical values each compare estimates among test correlations between several geographic variables single-sample linkage disequilibrium (LD), approximate...
Abstract In this study, we investigated the role of selection in maintenance a dorsal colour polymorphism natural populations northern leopard frog, Rana pipiens . We determined genetic structure both spatially and temporally from suite putatively neutral molecular markers tested whether or not locus exhibited patterns variation that differed those loci. Spatial at was indistinguishable loci [95% confidence intervals F ST (neutral) = (0.07, 0.35), (colour locus) 0.114]. temporal analysis,...
In this study, our objective was to understand life history attributes of Mytella charruana, a newly introduced species the southeastern Atlantic coast United States, that would enable its survival in range. We therefore addressed following questions regarding range salinities which M. charruana can survive: First, what is possible for if slowly adjusted test salinities? Second, these mussels survive when experiencing rapid changes salinity? Third, with temporary, salinity (6-h duration)?...
Larval tiger salamanders, Ambystoma tigrinum, exist as small-headed "typical" morphs that feed mainly on aquatic invertebrates and large-headed "cannibal" often prey conspecifics. Previous experiments have demonstrated cannibals are induced facultatively when crowded with conspecific larvae. We asked: (1) What sensory cues trigger expression of cannibals? (2) Does larval age influence (3) Are also by crowding heterospecifics? (4) Do suppress others from developing into found tactile other...
The evolution of the complex societies displayed by social insects depended partly on high relatedness among interacting group members. Therefore, behaviors that depress relatedness, such as multiple mating reproductive females (polyandry), are unexpected in insects. Nevertheless, queens several insect species mate multiply, suggesting polyandry provides some benefits counteract costs. However, few studies have obtained evidence for links between rates and fitness naturally occurring...
Abstract We studied the reproductive biology of Mytella charruana to determine potential success this newly introduced bivalve species from Central/South America. analyzed gonad morphology, gametogenesis, and sex ratios populations throughout a 12 month period. In non‐native habitat M. shows same strategy gametogenesis that had been observed in its native environment, which is an opportunistic type gonadal cycle with gametes produced year. Instead, spawning period along southeastern US coast...
Comparative studies of developmental processes suggest that novel traits usually evolve through the cooption preexisting genes and proteins, mainly via gene duplication functional specialization paralogs. However, an alternative hypothesis is protein function can without duplication, changes in spatiotemporal patterns expression (e.g., cis-regulatory elements), or modifications addition domains) proteins they encode, both. Here we present astacin metalloprotease, dubbed patristacin, which...
Abstract Social insects display extreme cooperative and helping behaviours. However, social insect colonies are also arenas of intense competitive interactions. One particularly important matter over which colony members may compete centres on the development sexual offspring. Specifically, engage in selfish behaviours leading to reproductive competition, whereby individuals either strive develop as sexuals or assist kin so that close relatives emerge new reproductives. We investigated...
Summary The goal of this study was to identify and differentiate the influence multiple habitat types that span a spectrum suitability for Hyla squirella , widespread frog species occurs in broad range types. We collected microsatellite data from 675 samples representing 20 localities southeastern USA used machine‐learning methodologies significant features associated with genetic structure. In simulation, we confirm our algorithm can successfully landscape responsible generating...
This study examined the combined salinity and temperature tolerance of two marine bivalve molluscs, Perna viridis Mytella charruana , which have recently invaded southeastern United States. It is essential to understand role that these abiotic variables play in invasions establishment nonnative species. We simultaneously explored survival at three ranges (5–9, 20–22.5, 35–40 ppt) both cold warm water for juveniles adults determined can survive a wide range temperatures (9–35°C) when 35–37...
Abstract Aim Complex oceanographic features have historically caused difficulty in understanding gene flow marine taxa. Here, we evaluate the impact of potential phylogeographic barriers to and assess demography evolutionary history a coral reef goby species complex. Specifically, test how Amazon River outflow ocean currents flow. Location Western Atlantic. Taxon The bridled ( Coryphopterus glaucofraenum ) sand‐canyon C. venezuelae Methods We used mitochondrial DNA 2,401 genomic SNPs...
Abstract Background Social insects dominate ecological communities because of their sophisticated group behaviors. However, the intricate behaviors social may be exploited by parasites, which manipulate insect societies for own benefit. Interactions between parasites and hosts lead to unusual coevolutionary dynamics that ultimately affect breeding systems population structures both species. This study represents one first attempts understand colony genetic structure a parasite its host in...
North American amphibians have recently been impacted by two major emerging pathogens, the fungus Batrachochytrium dendrobatidis (Bd) and iridoviruses in genus Ranavirus (Rv). Environmental factors host genetics may play important roles disease dynamics, but few studies incorporate both of these components into their analyses. Here, we investigated role environmental genetic driving Bd Rv infection prevalence severity a biodiversity hot spot, southeastern United States. We used quantitative...
Extra-pair copulations (EPCs) leading to extra-pair fertilization (EPF) are common in avian mating systems, despite the prevalence of observed social monogamy many species. Colonially breeding birds interesting species investigate EPCs and EPF because they show nesting habits including close proximity nest sites sexual partners, which proposed promote alternative reproductive tactics. Endemic Africa, colonial marabou stork (Leptoptilos crumeniferus) is one most commonly held North American...