11 Works

Data from: Pink shrimp Farfantepenaeus duorarum spatiotemporal abundance trends along an urban, subtropical shoreline slated for restoration

Ian C. Zink, Joan A. Browder, Diego Lirman & Joseph E. Serafy
The Biscayne Bay Coastal Wetlands (BBCW) project of the Comprehensive Everglades Restoration Plan (CERP) aims to reduce point-source freshwater discharges and spread freshwater flow along the mainland shoreline of southern Biscayne Bay. These actions will be taken to approximate conditions in the coastal wetlands and bay that existed prior to construction of canals and water control structures. An increase in pink shrimp (Farfantepenaeus duorarum) density to ≥ 2 individuals m-2 during the wet season (i.e.,...

Data from: How old are you? Genet age estimates in a clonal animal

Meghann K. Devlin-Durante, Margaret W. Miller, Caribbean Acropora Research Group, William F. Precht & Iliana B. Baums
Foundation species such as redwoods, seagrasses and corals are often long-lived and clonal. Genets may consist of hundreds of members (ramets) and originated hundreds to thousands of years ago. As climate change and other stressors exert selection pressure on species, the demography of populations changes. Yet, because size does not indicate age in clonal organisms, demographic models are missing data necessary to predict the resilience of many foundation species. Here, we correlate somatic mutations with...

Data from: Nuclear and mitochondrial patterns of population structure in North Pacific false killer whales (Pseudorca crassidens)

Karen K. Martien, Susan J. Chivers, Robin W. Baird, Frederick I. Archer, Antoinette M. Gorgone, Brittany L. Hancock-Hanser, David Mattila, Daniel J. McSweeney, Erin M. Oleson, Carol Palmer, Victoria L. Pease, Kelly M. Robertson, Gregory S. Schorr, Mark B. Schultz, Daniel L. Webster & Barbara L. Taylor
False killer whales (Pseudorca crassidens) are large Delphinids typically found in deep water far offshore. However, in the Hawaiian Archipelago there are two resident island-associated populations of false killer whales, one in the waters around the main Hawaiian Islands (MHI) and one in the waters around the Northwestern Hawaiian Islands (NWHI). We use mitochondrial DNA (mtDNA) control region sequences and genotypes from 16 nuclear (nucDNA) microsatellite loci from 206 individuals to examine levels of differentiation...

Data from: Hierarchical population structure and habitat differences in a highly mobile marine species: the Atlantic spotted dolphin

Amelia Viricel & Patricia E. Rosel
Recent molecular studies have shown that highly mobile species with continuous distributions can exhibit fine-scale population structure. In this context, we assessed genetic structure within a marine species with high dispersal potential, the Atlantic spotted dolphin (Stenella frontalis). Using 19 microsatellite loci and mitochondrial control region sequences, population structure was investigated in the western North Atlantic, the Gulf of Mexico and the Azores Islands. Analyses of the microsatellite data identified four distinct genetic clusters, which...

E-scape: consumer-specific landscapes of energetic resources derived from stable isotope analysis and remote sensing

W. Ryan James, Rolando Santos, Jennifer Rehage, Jennifer Doerr & James Nelson
Energetic resources and habitat distribution are inherently linked. Energetic resource availability is a major driver of the distribution of consumers, but estimating how much specific habitats contribute to the energetic resource needs of a consumer can be problematic. We present a new approach that combines remote sensing information and stable isotope ecology to produce maps of energetic resources (E-scapes). E-scapes project species-specific resource use information onto the landscape to classify areas based on energetic importance....

Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus

David Portnoy, Christopher Hollenbeck, Carolyn Belcher, , Bryan Frazier, Jim Gelsleichter, R. D. Grubbs, John Gold, D. S. Portnoy, C. M. Hollenbeck, J. R. Gold, C. N. Belcher, B. S. Frazier & W. B. Driggers
Patterns of population structure and historical genetic demography of blacknose sharks in the western North Atlantic Ocean were assessed using variation in nuclear-encoded microsatellites and sequences of mitochondrial (mt)DNA. Significant heterogeneity and/or inferred barriers to gene flow, based on microsatellites and/or mtDNA, revealed the occurrence of five genetic populations localized to five geographic regions: the southeastern U.S Atlantic coast, the eastern Gulf of Mexico, the western Gulf of Mexico, Campeche Bay in the southern Gulf...

Data from: Genome-wide investigation of adaptation to harmful algal blooms in common bottlenose dolphins (Tursiops truncatus)

Kristina M. Cammen, Thomas F. Schultz, Patricia E. Rosel, Randall S. Wells & Andrew J. Read
Harmful algal blooms (HABs), which can be lethal in marine species and cause illness in humans, are increasing worldwide. In the Gulf of Mexico, HABs of Karenia brevis produce neurotoxic brevetoxins that cause large-scale marine mortality events. The long history of such blooms, combined with the potentially severe effects of exposure, may have produced a strong selective pressure for evolved resistance. Advances in next-generation sequencing, in particular genotyping-by-sequencing, greatly enable the genomic study of such...

Data from: Demography or selection on linked cultural traits or genes? Investigating the driver of low mtDNA diversity in the sperm whale using complementary mitochondrial and nuclear genome analyses

Phillip A. Morin, Andrew D. Foote, Charles Scott Baker, Brittany L. Hancock-Hanser, Kristin Kaschner, Bruce R. Mate, Sarah L. Mesnick, Victoria L. Pease, Patricia E. Rosel & Alana Alexander
Mitochondrial DNA has been heavily utilized in phylogeography studies for several decades. However, underlying patterns of demography and phylogeography may be misrepresented due to coalescence stochasticity, selection, variation in mutation rates, and cultural hitchhiking (linkage of genetic variation to culturally transmitted traits affecting fitness). Cultural hitchhiking has been suggested as an explanation for low genetic diversity in species with strong social structures, counteracting even high mobility, abundance and limited barriers to dispersal. One such species...

Data from: Population structure, gene flow, and historical demography of a small coastal shark (Carcharhinus isodon) in US waters of the Western Atlantic Ocean

David S. Portnoy, Christopher M. Hollenbeck, Dana M. Bethea, Bryan S. Frazier, Jim Gelsleichter & John R. Gold
Patterns of population structure, genetic demographics, and gene flow in the small coastal shark Carcharhinus isodon (finetooth shark) sampled from two discrete nurseries along the southeastern US coast (Atlantic) and three nurseries in the northern Gulf of Mexico (Gulf), were assessed using 16 nuclear-encoded microsatellites and 1077 base pairs of the mitochondrial DNA (mtDNA) control region. Significant heterogeneity in microsatellite allele distributions was detected among all localities except between the two in the Atlantic. Significant...

Data from: Atlantic bluefin tuna spawn at suboptimal temperatures for their offspring

Patricia Reglero, Aurelio Ortega, Rosa Balbín, Francisco Javier Abascal, Antonio Medina, Edurne Blanco, Fernando De La Gándara, Diego Alvarez-Berastegui, Manuel Hidalgo, Leif Rasmuson, Francisco Alemany & Øyvind Fiksen
Life-history traits such as spawning migrations and timing of reproduction are adaptations to specific environmental constraints and seasonal cycles in many organisms’ annual routines. In this study we analyze how offspring fitness constrains spawning phenology in a large migratory apex predator, the Atlantic bluefin tuna. The reproductive schedule of Atlantic bluefin tuna varies between spawning sites suggesting plasticity to local environmental conditions. Generally, temperature is considered to be the main constraint on tuna spawning phenology....

Data from: Developing genomic resources for the common bottlenose dolphin (Tursiops truncatus): isolation and characterisation of 153 single nucleotide polymorphisms and 53 genotyping assays

Nicole L. Vollmer & Patricia E. Rosel
Although single nucleotide polymorphisms (SNPs) are commonly used in human genetics, they have only recently been incorporated into genetic studies of non-model organisms, including cetaceans. SNPs have several advantages over other molecular markers for studies of population genetics: they are quicker and more straightforward to score, cross-laboratory comparisons of data are less complicated, and they can be used successfully with low-quality DNA. We screened portions of the genome of one of the most abundant cetaceans...

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