- Genetic diversity and population structure
- Plant and animal studies
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Marine and coastal ecosystems
- Forest Insect Ecology and Management
- Paleontology and Evolutionary Biology
- Marine Bivalve and Aquaculture Studies
- Morphological variations and asymmetry
- Aquatic Invertebrate Ecology and Behavior
- Fish Ecology and Management Studies
- Methane Hydrates and Related Phenomena
- Evolution and Paleontology Studies
- Biological Control of Invasive Species
- Ocean Acidification Effects and Responses
Wellesley College
2009-2016
University of Chicago
2011-2016
Curtin University
2011-2014
Charles Darwin Foundation
2011-2014
The University of Melbourne
2014
The University of Texas at Austin
2014
Abstract This article documents the addition of 220 microsatellite marker loci to Molecular Ecology Resources Database. Loci were developed for following species: Allanblackia floribunda, Amblyraja radiata, Bactrocera cucurbitae, Brachycaudus helichrysi, Calopogonium mucunoides, Dissodactylus primitivus, Elodea canadensis, Ephydatia fluviatilis, Galapaganus howdenae howdenae, Hoplostethus atlanticus, Ischnura elegans, Larimichthys polyactis, Opheodrys vernalis, Pelteobagrus fulvidraco,...
SUMMARY Mammalian cervical count has been fixed at seven for more than 200 million years. The rare exceptions to this evolutionary constraint have intrigued anatomists since the time of Cuvier, but developmental processes that generate them are unknown. Here we evaluate competing hypotheses origin variants in Bradypus and Choloepus , tree sloths broken vertebrae barrier independently opposite directions. Transitional mediolaterally disjunct anatomy characterizes cervicothoracic vertebral...
Summary Carbon uptake in terrestrial plants functions under near‐constant source carbon dioxide ( CO 2 ) concentrations and isotopic ratios, but aquatic macrophytes operate a more complex system where environmental fluxes biotic interactions undermine assumptions of constant concentration 13 C/ 12 C. Many marine not only passively access for photosynthesis, also actively concentrate bicarbonate using mechanisms CCM s). These processes change macrophyte fractionation signatures C) elevate...
Understanding functional trait distributions among organisms can inform impacts on and responses to environmental change. In marine systems, only 1% of dissolved inorganic carbon in seawater exists as CO2. Thus the majority macrophytes not passively access CO2 for photosynthesis, but also actively transport more common bicarbonate (HCO3-, 92% carbon) into their cells. Because species with these concentrating mechanisms (CCMs) are non-randomly distributed ecosystems, we ask whether there is a...
The challenge of maintaining genetic diversity within populations can be exacerbated for island endemics if they display population dynamics and behavioral attributes that expose them to drift without the benefits gene flow. We assess patterns structure demographic history in 27 9 species flightless endemic Galápagos weevils from islands 1 winged introduced close relative. Analysis mitochondrial DNA reveals a significant moderately variable, though demographically stable, lowland (FST =...
Successful invasive species can overcome or circumvent the potential genetic loss caused by an introduction bottleneck through a rapid population expansion and admixture from multiple introductions. We explore makeup timing of to Santa Cruz Island in Galápagos archipelago. investigate presence processes that maintain diversity populations broad-nosed weevil Galapaganus howdenae howdenae. Analyses combined genotypes for 8 microsatellite loci showed evidence past size reductions moment...
Communities often comprise non-random samples of regional species pools, whether in phenotypic or phylogenetic terms. A major focus community ecology has been to determine the relative contributions environmental and organismal variables interactions assembly. As ecological communities are increasingly subjected effects climate change intensifying disturbance, researchers have focused on how use these predict responses change. In this dissertation, I expand studies drivers structure a...