6 Works

Data from: Sex- and tissue-specific differences in telomere length in a reptile

Nicky Rollings, Christopher R. Friesen, Camilla M. Whittington, Rasmus Johansson, Richard Shine & Mats Olsson
The usage of telomere length (TL) in blood as a proxy for the TL of other tissues relies on the assumption that telomere dynamics across all tissues are similar. However, telomere attrition can be caused by reactive oxygen species (ROS) which may vary with metabolic rate, which itself varies across organs depending upon the life history strategy of an organism. Thus we chose to measure the telomeres of various cell types in juvenile painted dragon...

Data from: Female choice for related males in wild red-backed toadlets (Pseudophryne coriacea)

Daniel M. O'Brien, J. Scott Keogh, Aimee J. Silla & Phillip G. Byrne
Mate choice for genetic benefits is assumed to be widespread in nature, yet very few studies have comprehensively examined relationships between female mate choice and male genetic quality in wild populations. Here, we use exhaustive sampling and single nucleotide polymorphisms (SNPs) to provide a partial test of the “good genes as heterozygosity” hypothesis and the “genetic compatibility” hypothesis in an entire population of terrestrial breeding red-backed toadlets, Pseudophryne coriacea. We found that successful males did...

Flies exploit predictable perspectives and backgrounds to enhance iridescent signal salience and mating success

Thomas White, Nina Vogel-Ghibely & Nathan Butterworth
Communication requires both the encoding of information and its effective transmission, but little is known about display traits that primarily serve to enhance efficacy. Here we examined the visual courtships of Lispe cana, a cursorial fly that lives and mates in heterogeneous foreshores, and tested the prediction that males should seek to enhance signal salience and consequent fitness through the flexible choice of display locations. We show that courting males access the field of view...

Data from: The relationship of body condition, superoxide dismutase, and superoxide with sperm performance

Christopher R. Friesen, Simon P. De Graaf & Mats Olsson
Sperm competition theory predicts a negative correlation between somatic investment in traits that aid in pre- and postcopulatory sexual selection. Sperm performance is critical for postcopulatory success but are susceptible to damage by free radicals such as superoxide radicals generated during mitochondrial respiration (mtSOx). Males can ameliorate damage to spermatozoa by investing in the production of antioxidants, like superoxide dismutase (SOD), which may act as a mechanistic link for pre and postcopulatory trade-offs. Some male...

Pollination by bats enhances both quality and yield of a major cash crop in Mexico

Constance Tremlett, Mandy Moore, Mark Chapman, Veronica Zamora-Gutierrez & Kelvin Peh
We used exclusion experiments to determine the effect of different pollinator taxa on the yield and quality of pitayas (fruit of Stenocereus queretaroensis (F.A.C. Weber) Buxbaum), a major crop in central Mexico. We studied the three most economically important cultivars and wild individuals in the principal region for pitaya production. For each pollinator taxa we recorded fruit set and measured three key parameters of fruit quality: weight, sucrose concentration and seed set. When bats were...

Data from: Dietary carotenoids affect the development of individual differences and behavioral plasticity

Shannon R. Kelleher, Aimee J. Silla, Petri T. Niemelä, Niels J. Dingemanse & Phillip G. Byrne
Nutritional conditions experienced during development are expected to play a key role in shaping an individual’s behavioral phenotype. The long term, irreversible effects of nutritional conditions on behavioral variation among and within individuals remains largely unexplored. This study aimed to investigate how long-term carotenoid availability (representing low vs. high quality nutritional conditions) during both larval and adult life stages influences the expression of among-individual variation (animal personality) and within-individual variation (behavioral plasticity). We tested for...

Registration Year

  • 2019
    6

Resource Types

  • Dataset
    6

Affiliations

  • University of Wollongong
    6
  • University of Sydney
    3
  • Australian National University
    1
  • University of Southampton
    1
  • University of Gothenburg
    1
  • Ludwig Maximilian University of Munich
    1