34 Works

Comparative morphology of shark pectoral fins

Sarah Hoffmann, Thaddaeus Buser & Marianne Porter
Sharks vary greatly in morphology, physiology, and ecology. Differences in whole body shape, swimming style, and physiological parameters have previously been linked to varied habitat uses. Along with whole body morphology, shark pectoral fins are also previously described to vary in both shape and skeleton; however, there are limited comparative data on external and skeletal morphology. Further, fins were previously categorized into two discrete groups based on the amount of skeletal support present: (1) aplesodic,...

Evidence supporting the microbiota-gut-brain axis in a songbird

Morgan Slevin, Jennifer Houtz, & Rindy Anderson
Recent research in mammals supports a link between cognitive ability and the gut microbiome, but little is known about this relationship in other taxa. In a captive population of 38 Zebra Finches (Taeniopygia guttata), we quantified performance on cognitive tasks measuring learning and memory. We sampled the gut microbiome via cloacal swab and quantified bacterial alpha and beta diversity. Performance on cognitive tasks related to beta diversity but not alpha diversity. We then identified differentially...

First Atlantic satellite tracks of lost years green turtles support the importance of the Sargasso Sea as a sea turtle nursery

Katherine Mansfield, Jeanette Wyneken & Jiangang Luo
In-water behaviour and long-term movements of oceanic-stage juvenile sea turtles are not well described or quantified. This is due to technological or logistical limitations of tracking small, fast-growing animals across long distances and time-periods within marine habitats. Here we present the first long-term offshore tracks of oceanic green turtles (Chelonia mydas) in western North Atlantic waters. Using a tag attachment technique developed specifically for young (<1 year old) green turtles, we satellite tracked 21 oceanic-stage...

Data from: Evaluating temporal and spatial transferability of a tidal inundation model for foraging waterbirds

Marisa Martinez, Leonardo Calle, Stephanie Romanach & Dale Gawlik
For ecosystem models to be applicable outside their context of development, temporal and spatial transferability must be demonstrated. This presents a challenge for modeling intertidal ecosystems where spatiotemporal variation arises at multiple scales. Models specializing in tidal dynamics are generally inhibited from having wider ecological applications by coarse spatiotemporal resolution or high user competency. The Tidal Inundation Model of Shallow-water Availability (TiMSA) uniquely simulates tides to empirically derive a time-integrated measure of availability for a...

Evolutionary comparisons of Chelonid alphaherpesvirus 5 (ChHV5) Genomes from Fibropapillomatosis-afflicted green (Chelonia mydas), Olive ridley (Lepidochelys olivacea) and Kemp’s ridley (Lepidochelys kempii) sea turtles

Liam Whitmore, Kelsey Yetsko, Jessica Farrell, Annie Page-Karjian, Whitney Daniel, Donna Shaver, Hilary Frandsen, Jennifer Walker, Whitney Crowder, Caitlin Bovery, Devon Rollinson-Ramia, Brooke Burkhalter, Elizabeth Ryan & David Duffy
The spreading global sea turtle fibropapillomatosis (FP) epizootic is threatening some of Earth’s ancient reptiles, adding to the plethora of threats faced by these keystone species. Understanding this neoplastic disease and its likely aetiological pathogen, chelonid alphaherpesvirus 5 (ChHV5), is crucial to understand how the disease impacts sea turtle populations and species and the future trajectory of disease incidence. We generated 20 ChHV5 genomes, from three sea turtle species, to better understand the viral variant...

Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas)

Greg O'Corry-Crowe, Robert Suydam, Lori Quakenbush, Brooke Potgieter, Lois Harwood, Dennis Litovka, Tatiana Ferrer, John Citta, Vladimir Burkanov, Kathy Frost, Barbara Mahoney & Greg O’Corry-Crowe
The annual return of beluga whales, Delphinapterus leucas, to traditional seasonal locations across the Arctic may involve migratory culture, while the convergence of discrete summering aggregations on common wintering grounds may facilitate outbreeding. Natal philopatry and cultural inheritance, however, has been difficult to assess as earlier studies were of too short a duration, while genetic analyses of breeding patterns, especially across the beluga's Pacific range, have been hampered by inadequate sampling and sparse information on...

Data from: Population connectivity among shallow and mesophotic Montastraea cavernosa corals in the Gulf of Mexico identifies potential for refugia

Michael S. Studivan & Joshua D. Voss
Successful management of spatially isolated coral reefs is contingent on an understanding of ecological connections across populations. To investigate genetic connectivity of the depth-generalist coral species Montastraea cavernosa, populations from both shallow (15–30 m) and mesophotic coral ecosystems (30–70 m) in the Gulf of Mexico (GOM) were analyzed with microsatellite genotyping. A series of upstream and downstream sites were chosen in marine protected areas including Carrie Bow Cay, Belize; Flower Garden Banks and nearby mesophotic...

Data from: Molecular phylogenetics of squirrelfishes and soldierfishes (Teleostei:Beryciformes: Holocentridae): reconciling more than 100 years of taxonomic confusion

Alex Dornburg, Jon A. Moore, Rachel Webster, Dan L. Warren, Matthew C. Brandley, Teresa L. Iglesias, Peter C. Wainwright & Thomas J. Near
Squirrelfishes and soldierfishes (Holocentridae) are among the most conspicuous species in the nocturnal reef fish community. However, there is no clear consensus regarding their evolutionary relationships, which is reflected in a complicated taxonomic history. We collected DNA sequence data from multiple single copy nuclear genes and one mitochondrial gene sampled from over fifty percent of the recognized holocentrid species and infer the first species-level phylogeny of the Holocentridae. Our results strongly support the monophyly of...

Data from: Song learning and cognitive ability are not consistently related in a songbird

Rindy C. Anderson, William A. Searcy, Susan Peters, Melissa Hughes, Adrienne L. DuBois & Stephen Nowicki
Learned aspects of song have been hypothesized to signal cognitive ability in songbirds. We tested this hypothesis in hand-reared song sparrows (Melospiza melodia) that were tutored with playback of adult songs during the critical period for song learning. The songs developed by the 19 male subjects were compared to the model songs to produce two measures of song learning: the proportion of notes copied from models and the average spectrogram cross-correlation between copied notes and...

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