12 Works

Body shape transformations by alternate anatomical adaptive peak shifts in blenniiform fishes

David Collar, Emma DiPaolo, Sienna Mai & Rita Mehta
Extreme body elongation has occurred repeatedly in the evolutionary history of ray-finned fishes. Lengthening of the anterior-posterior body axis relative to depth and width can involve changes in the cranial skeleton and vertebral column, but to what extent is anatomical evolution determined by selective factors and intrinsic constraints that are shared broadly among closely related lineages? In this study, we fit adaptive (Ornstein-Uhlenbeck) evolutionary models to body shape and its anatomical determinants and identified two...

Fishing and habitat condition differentially affect size spectra slopes of coral reef fishes

Paul Carvalho, Fakhrizal Setiawan, Karizma Fahlevy, Beginer Subhan, Hawis Madduppa, Guangyu Zhu & Austin Humphries
Marine food webs are structured through a combination of top-down and bottom-up processes. In coral reef ecosystems, fish size is related to life-history characteristics and size-based indicators can represent the distribution and flow of energy through the food web. Thus, size spectra can be a useful tool for investigating the impacts of both fishing and habitat condition on the health and productivity of coral reef fisheries. In addition, coral reef fisheries are often data-limited and...

Malaria vector mosquito images 2

Jannelle Couret
We created a novel database of mosquito images by sampling live mosquitoes from established colonies maintained by the Malaria Research and Reference Reagent Resource (MR4)/ Biodefense and Emerging Infections (BEI) Resources at the Centers for Disease Control and Prevention (CDC) in Atlanta, GA. Adults of both sexes were imaged from 15 species of mosquitoes from there genera, 13 Anopheles, 2 Culex and 1 Aedes. There are a total of 1,709 images. We included an additional...

GIS rasters to identify sites for creating habitat for American Woodcock in Rhode Island

Bill Buffum
The University of Rhode Island has conducted several studies of habitat use of Scolopax minor (American Woodcock) in Rhode Island, USA. In 2020 we developed a new species distribution model (SDM) tool to identify sites in the Rhode Island where forest clearcutting to create young forest habitat would have the most positive effect for American woodcock. A typical SDM predicts the probability of presence (POP) of a species at any location based on an analysis...

Attention and distraction in the modular visual system of a jumping spider

Elizabeth Jakob, Margaret Bruce, Daniel Daye, Skye Long, Alex Winsor, Ronald Hoy & Gil Menda
Animals must selectively attend to relevant stimuli and avoid being distracted by unimportant stimuli. Jumping spiders (Salticidae) do this by coordinating eyes with different capabilities. Objects are examined by a pair of high-acuity principal eyes, whose narrow field of view is compensated for by retinal movements. The principal eyes overlap in field of view with motion-sensitive anterior-lateral eyes (ALEs), which direct their gaze to new stimuli. Using a salticid-specific eyetracker, we monitored the gaze direction...

Data from: Using DNA barcoding to identify host-parasite interactions between cryptic species of goby (Coryphopterus: Gobiidae, Perciformes) and parasitic copepods (Pharodes tortugensis: Chondracanthidae, Cyclopoida)

Graham Forrester, Malachy McCaffrey, Kristina Terpis & Christopher Lane
Previous work, using morphological characters, identified a generalist copepod parasite (Pharodes tortugensis) at high prevalence on two common gobies (Coryphopterus glaucofraenum and C. dicrus) in the British Virgin Islands (BVI). DNA barcoding subsequently revealed C. glaucofraenum to be three morphologically similar species (C. glaucofraenum, C. venezuelae and C. tortugae), casting doubt on host identities in the BVI and the classification of the parasite as a single species. Mitochondrial cytochrome c oxidase subunit I (COI) data...

Combined responses of primary coral polyps and their algal endosymbionts to decreasing seawater pH

Federica Scucchia, Assaf Malik, Paul Zaslansky, Hollie Putnam & Tali Mass
With coral reefs declining globally, resilience of these ecosystems hinges on successful coral recruitment. However, knowledge of the acclimatory and/or adaptive potential in response to environmental challenges such as ocean acidification (OA) in earliest life stages is limited. Our combination of physiological measurements, microscopy, computed tomography techniques and gene expression analysis allowed us to thoroughly elucidate the mechanisms underlying the response of early life stages of corals, together with their algal partners, to the projected...

Changes in selection pressure can facilitate hybridization during biological invasion in a Cuban lizard

Dan Bock, Simon Baeckens, Jessica Pita-Aquino, Zachary Chejanovski, Sozos Michaelides, Pavitra Muralidhar, Oriol Lapiedra, Sungdae Park, Douglas Menke, Anthony Geneva, Jonathan Losos & Jason Kolbe
Hybridization is among the evolutionary mechanisms most frequently hypothesized to drive the success of invasive species, in part because hybrids are common in invasive populations. One explanation for this pattern is that biological invasions coincide with a change in selection pressures that limit hybridization in the native range. To investigate this possibility, we studied the introduction of the brown anole (Anolis sagrei) in the southeastern United States. We find that native populations are highly genetically...

Dietary vitamin E reaches the mitochondria in the flight muscle of zebra finches but only if they exercise

Clara Cooper-Mullin, Wales Carter, Ronald Amato, David Podlesak & Scott McWilliams
Whether dietary antioxidants are effective for alleviating oxidative costs associated with energy-demanding life events first requires they are successfully absorbed in the digestive tract and transported to sites associated with reactive species production (e.g. the mitochondria). Flying birds are under high energy and oxidative demands, and although birds commonly ingest dietary antioxidants in the wild, the bioavailability of these consumed antioxidants is poorly understood. We show for the first time that an ingested lipophilic antioxidant,...

Flight training and dietary antioxidants have mixed effects on the oxidative status of multiple tissues in a female migratory songbird

Abigail Frawley, Kristen DeMoranville, Katherine Carbeck, Lisa Trost, Amadeusz Bryła, Maciej Dzialo, Edyta Sadowska, Ulf Bauchinger, Barbara Pierce & Scott McWilliams
Birds, like other vertebrates, rely on a robust antioxidant system to protect themselves against oxidative imbalance caused by energy-intensive activities such as flying. Such oxidative challenges may be especially acute for females during spring migration, since they must pay the oxidative costs of flight while preparing for reproduction; however, little previous work has examined how the antioxidant system of female spring migrants responds to dietary antioxidants and the oxidative challenges of regular flying. We fed...

Season, anthocyanin supplementation, and flight training have mixed effects on the antioxidant system of migratory European starlings (Sturnus vulgaris)

Abigail Frawley, Kristen J. DeMoranville, Katherine M. Carbeck, Lisa Trost, Amadeusz Bryła, Maciej Dzialo, Edyta T. Sadowska, Ulf Bauchinger, Barbara J. Pierce & Scott McWilliams
Migratory birds engage in two periods of endurance flight annually as they travel between summer breeding and overwintering grounds, and such endurance flights likely incur oxidative costs. These costs may differ between fall and spring migration, especially for females who must prepare for breeding and egg laying in spring. The objective of this study of a migratory bird was to test proposed hypotheses about how key components of the female’s antioxidant system differ in response...

Inter- and intra-archipelago dynamics of population structure and gene flow in a Polynesian bird

Ethan Gyllenhaal, Xena Mapel, Tejashree Modak, Lucas DeCicco, Alivereti Naikatini, Ruth Utzurrum, Joshua Seamon, Jean-Claude Thibault, Alice Cibois, Michael Sorenson, Robert Moyle, Lisa Barrow & Michael Andersen
Islands are separated by natural barriers that prevent gene flow between terrestrial populations and promote allopatric diversification. Birds in the South Pacific are an excellent model to explore the interplay between isolation and gene flow due to the region’s numerous archipelagos and well-characterized avian communities. The wattled honeyeater complex (Foulehaio spp.) comprises three allopatric species that are widespread and common across Fiji, Tonga, Samoa, and Wallis and Futuna. Here, we explored patterns of diversification within...

Registration Year

  • 2021
    12

Resource Types

  • Dataset
    12

Affiliations

  • University of Rhode Island
    12
  • Max Planck Institute for Ornithology
    2
  • Jagiellonian University
    2
  • University of British Columbia
    2
  • Sacred Heart University
    2
  • University of Kansas
    1
  • University of Massachusetts Amherst
    1
  • University of the South Pacific
    1
  • University of Antwerp
    1
  • Christopher Newport University
    1