12 Works

Data from: Immigrant song: males and females learn songs post-dispersal in a tropical bird

Brendan A. Graham, Daniel D. Heath, Ryan P. Walter & Daniel J. Mennill
A fundamental hypothesis about vocal learning is that young animals learn vocalizations in their natal areas and, following post-natal dispersal, they may introduce new types of vocalizations into their breeding areas. We tested this hypothesis in a tropical bird, the Rufous-and-white Wren (Thryophilus rufalbus), a species in which both sexes produce learned songs. We collected blood samples and acoustic recordings from 146 adult wrens from three populations in northwestern Costa Rica. We genotyped individuals at...

Data from: Latitudinal and seasonal variation in space use by a large, predatory reef fish, Plectropomus leopardus

Molly E. Scott, Michelle R. Heupel, Colin A. Simpfendorfer, Jordan K. Matley & Morgan S. Pratchett
1. Temperature directly affects the metabolic rate and resource requirements of ectothermic animals, which is likely to influence their movement and habitat use. Space use is a fundamental component of an animal’s ecology and the extent of an animal’s home range has consequences for individual distributions, community structure and ecosystem function. As ocean temperatures continue to rise as a result of global warming, determining the effects of temperature on space use and movement patterns of...

Data from: Hot temperatures during the dry season reduce survival of a resident tropical bird

Brad K. Woodworth, D. Ryan Norris, Brendan A. Graham, Zachary A. Kahn, Daniel J. Mennill & Bradley K. Woodworth
Understanding how climate change will shape species distributions in the future requires a functional understanding of the demographic responses of animals to their environment. For birds, most of our knowledge of how climate influences population vital rates stems from research in temperate environments, even though most of the Earth’s avian diversity is concentrated in the tropics. We evaluated effects of Southern Oscillation Index (SOI) and local temperature and rainfall at multiple temporal scales on sex-specific...

Data from: Insect herbivory on seedlings of rainforest trees: effects of density and distance of conspecific and heterospecific neighbours

Harriet Downey, Owen T. Lewis, Michael B. Bonsall, D. Catalina Fernandez & Sofia Gripenberg
1. Natural enemies of plants such as insect herbivores can contribute to structuring and maintaining plant diversity in tropical forests. Most research in this area has focused on the role of specialised enemies and the extent to which herbivory on individual plant species is density-dependent. 2. Relatively few insect herbivores specialise on a single host plant species. Insect herbivores that feed on more than one plant species may link the regeneration dynamics of their host...

Data from: Experimental trait mis-matches uncover specificity of evolutionary links between multiple signaling traits and their interactions in hummingbirds

Richard K. Simpson & Kevin J. McGraw
Many animal signals co-occur, and these signals may co-evolve due to their interactive properties. Previous work has demonstrated ecological drivers of evolutionary relationships between signals and the environment, which leads to questions about why specific signal pairs evolved among species that possess multiple signals. We asked whether the coloration of different species was optimized for presentation with its natural behavioral display. We investigated this in “bee” hummingbirds, where males exhibit angle-dependent structurally colored plumage and...

Data from: Significant differences in maternal carotenoid provisioning and effects on offspring fitness in Chinook salmon colour morphs

Sarah J. Lehnert, Kyle A. Garver, Jon Richard, Robert H. Devlin, Celine Lajoie, Trevor E. Pitcher & Daniel D. Heath
In oviparous species, maternal carotenoid provisioning can deliver diverse fitness benefits to offspring via increased survival, growth, and immune function. Despite demonstrated advantages of carotenoids, large intra‐ and interspecific variation in carotenoid utilization exists, suggesting trade‐offs associated with carotenoids. In Chinook salmon (Oncorhynchus tshawytscha), extreme variation in carotenoid utilization delineates two colour morphs (red and white) that differ genetically in their ability to deposit carotenoids into tissues. Here, we take advantage of this natural variation...

Data from: Higher rates of pre‐breeding condition gain positively impacts clutch size: a mechanistic test of the condition‐dependent individual optimization model

Holly L. Hennin, Cody J. Dey, Joel Bety, H. Grant Gilchrist, Pierre Legagneux, Tony D. Williams & Oliver P. Love
1. A combination of timing of and body condition (i.e., mass) at arrival on the breeding grounds interact to influence the optimal combination of the timing of reproduction and clutch size in migratory species. This relationship has been formalized by Rowe et al. in a condition-dependent individual optimization model (American Naturalist, 1994, 143, 689-722), which has been empirically tested and validated in avian species with a capital-based breeding strategy. 2. This model makes a key,...

Data from: Effect of temperature on oviposition behavior and egg load of blow flies (Diptera: Calliphoridae)

Krystal Rae Hans, Rebecca LeBouthillier & Sherah L. VanLaerhoven
Making optimal oviposition decisions is especially important for female carrion colonizing insects whose larvae often depend on ephemeral resources. Oviposition can be influenced by a variety of factors, including temperature. The aim of this study was to investigate the effects of temperature on the oviposition behavior and egg load of two blow fly species native to southern Ontario: Phormia regina Meigen and Lucilia sericata Meigen (Diptera: Calliphoridae). Using fetal pig carcasses as an oviposition substrate,...

Data from: Standing genetic diversity and selection at functional gene loci are associated with differential invasion success in two non-native fish species

Kyle W. Wellband, Harri Pettitt-Wade, Aaron T. Fisk & Daniel D. Heath
Invasive species are expected to experience a unique combination of high genetic drift due to demographic factors while also experiencing strong selective pressures. The paradigm that reduced genetic diversity should limit the evolutionary potential of invasive species and thus their potential for range expansion has received little empirical support, possibly due to the choice of genetic markers. Our goal was to test for effects of genetic drift and selection at functional genetic markers as they...

Data from: Parallel evolutionary forces influence the evolution of male and female songs in a tropical songbird

Brendan A. Graham, Daniel D. Heath, Ryan P. Walter, Melissa M. Mark & Daniel J. Mennill
Given the important role that animal vocalizations play in mate attraction and resource defence, acoustic signals are expected to play a significant role in speciation. Most studies, however, have focused on the acoustic traits of male animals living in the temperate zone. In contrast to temperate environments, in the tropics it is commonplace for both sexes to produce complex acoustic signals. Therefore tropical birds offer the opportunity to compare the sexes and provide a more...

Data from: Integrating complementary methods to improve diet analysis in fishery-targeted species

Jordan K. Matley, Gregory E. Maes, Floriaan Devloo-Delva, Roger Huerlimann, Gladys Chua, Andrew J. Tobin, Aaron T. Fisk, Colin A. Simpfendorfer & Michelle R. Heupel
Developing efficient, reliable, cost-effective ways to identify diet is required to understand trophic ecology in complex ecosystems and improve food web models. A combination of techniques, each varying in their ability to provide robust, spatially and temporally explicit information can be applied to clarify diet data for ecological research. This study applied an integrative analysis of a fishery-targeted species group - Plectropomus spp.in the central Great Barrier Reef, Australia by comparing three diet-identification approaches. Visual...

Data from: Habitat or temporal isolation: unravelling herbivore-parasitoid speciation patterns using double digest RADseq

Y. Miles Zhang, Amber I.H. Bass, D. Catalina Fernandez, Barbara J. Sharanowski & Amber I. H. Bass
Ecological speciation is often observed in phytophagous insects and their parasitoids due to divergent selection caused by host-associated or temporal differences. Most previous studies have utilized limited genetic markers or distantly related species to look for reproductive barriers of speciation. In our study we focus on closely related species of Lygus bugs and two sister species of Peristenus parasitoid wasps. Using mitochondrial DNA COI and genome wide SNPs generated using ddRADseq, we tested for potential...

Registration Year

  • 2018

Resource Types

  • Dataset


  • University of Windsor
  • Australian Institute of Marine Science
  • James Cook University
  • Center for Human Genetics
  • University of Guelph
  • Simon Fraser University
  • Northern Arizona University
  • Fisheries and Oceans Canada
  • University of the Virgin Islands
  • University of Central Florida