12 Works

Data from: Heterogeneity in individual quality and reproductive trade-offs within species

Jiahui N. Lim, Alistair Mcnair Senior & Shinichi Nakagawa
Interspecifically, a reasonable body of evidence supports a trade-off between offspring size and number. However, at the intraspecific level, a whole manner of phenotypic correlations between offspring size and number are observed. These correlations may be predicted when heterogeneity in resource availability, or quality, is considered. Making the assumption that maternal size is a proxy for resource availability, we meta-analytically quantified four phenotypic reproductive correlations within numerous species: (1) maternal size and offspring size, (2)...

Data from: Estimating population size in the presence of temporary migration using a joint analysis of telemetry and capture recapture data

Tomas Bird, Jarod Lyon, Michael McCarthy, Richard Barker & Simon Nicol
1.Temporary migration – where individuals can leave and re-enter a sampled population – is a feature of many capture–mark–recapture (CMR) studies of mobile populations which, if unaccounted for, can lead to biased estimates of population capture probabilities and consequently biased estimates of population abundance. 2. We present a method for incorporating radiotelemetry data within a CMR study to eliminate bias due to temporary migration using a Bayesian state-space model. 3. Our results indicate that using...

Data from: Postglacial expansion and not human persecution best explains the population structure in the endangered kea (Nestor notabilis)

Nick Dussex, D. Wegmann & B. C. Robertson
Inferring past demography is a central question in evolutionary and conservation biology. It is however sometimes challenging to infer the processes that shaped the current patterns of genetic variation in endangered species. Population sub-structuring can occur as a result of survival in several isolated refugia and subsequent recolonization processes or via genetic drift following a population decline. The kea (Nestor notabilis) is an endemic parrot widely distributed in the mountains of the South Island of...

Data from: Evolution of alternative male morphotypes in oxyurid nematodes: a case of convergence?

Fátima Jorge, Ana Perera, Vicente Roca, Miguel Carretero, D. James Harris, Robert Poulin & M. A. Carretero
Male dimorphism has been reported across different taxa, and is usually expressed as the coexistence of a larger morph with exaggerated male traits and a smaller one with reduced traits. The evolution and maintenance of male dimorphism are still poorly understood for several of the species in which it has been observed. Here, we analyse male dimorphism in several species of reptile parasitic nematodes of the genus Spauligodon, in which a major male morph (exaggerated...

Data from: Ancestor-descendant relationships in evolution: origin of the extant pygmy right whale, Caperea marginata

Cheng-Hsiu Tsai, R. Ewan Fordyce & C.-H. Tsai
Ancestor–descendant relationships (ADRs), involving descent with modification, are the fundamental concept in evolution, but are usually difficult to recognize. We examined the cladistic relationship between the only reported fossil pygmy right whale, Miocaperea pulchra, and its sole living relative, the enigmatic pygmy right whale Caperea marginata, the latter represented by both adult and juvenile specimens. Miocaperea is phylogenetically bracketed between juvenile and adult Caperea marginata in morphologically based analyses, thus suggesting a possible ADR—the first...

Data from: Costly infidelity: low lifetime fitness of extra-pair offspring in a passerine bird

Yu-Hsun Hsu, Julia Schroeder, Isabel Winney, Terry A. Burke, Shinichi Nakagawa & Terry Burke
Extra-pair copulation (EPC) is widespread in socially monogamous species, but its evolutionary benefits remain controversial. Indirect genetic benefit hypotheses postulate that females engage in EPC to produce higher quality extra-pair offspring (EPO) than within-pair offspring (WPO). In contrast, the sexual conflict hypothesis posits that EPC is beneficial to males but not to females. Thus, under the sexual conflict hypothesis, EPO are predicted to be no fitter than WPO. We tested these two hypotheses with a...

Data from: MHC variation reflects the bottleneck histories of New Zealand passerines

Jolene T. Sutton, Bruce C. Robertson & Ian G. Jamieson
Most empirical evidence suggests that balancing selection does not counter the effects of genetic drift in shaping post-bottleneck MHC genetic diversity when population declines are severe or prolonged. However, few studies have been able to include data from historical specimens, or to compare populations/species with different bottleneck histories. In this study we examined MHC class II B and microsatellite diversity in four New Zealand passerine (songbird) species that experienced moderate to very severe declines. We...

Data from: Can novel genetic analyses help to identify low-dispersal marine invasive species?

Peter R. Teske, Jonathan Sandoval-Castillo, Jonathan M. Waters & Luciano B. Beheregaray
Genetic methods can be a powerful tool to resolve the native versus introduced status of populations whose taxonomy and biogeography are poorly understood. The genetic study of introduced species is presently dominated by analyses that identify signatures of recent colonization by means of summary statistics. Unfortunately, such approaches cannot be used in low-dispersal species, in which recently established populations originating from elsewhere in the species' native range also experience periods of low population size because...

Data from: Vitamin D status among Thai school children and the association with 1,25-dihydroxyvitamin D and parathyroid hormone levels

Lisa A. Houghton, Andrew R. Gray, Michelle J. Harper, Pattanee Winichagoon, Tippawan Pongcharoen, Sueppong Gowachirapant & Rosalind S. Gibson
In several low latitude countries, vitamin D deficiency is emerging as a public health issue. Adequate vitamin D is essential for bone health in rapidly growing children. In the Thai population, little is known about serum 25-hydroxyvitamin D [25(OH)D] status of infants and children. Moreover, the association between 25(OH)D and the biological active form of 1,25-dihydroxyvitamin D [1,25(OH)]2D is not clear. The specific aims of this study were to characterize circulating serum 25(OH)D, 1,25(OH)2D and...

Data from: A quantitative review of MHC-based mating preference: the role of diversity and dissimilarity

T. Kamiya, K. O'Dwyer, H. Westerdahl, A. Senior & S. Nakagawa
Sexual selection hypotheses stipulate that the major histocompatibility complex genes (MHC) constitute a key molecular underpinning for mate choice in vertebrates. The last four decades saw growing empirical literature on the role of MHC diversity and dissimilarity in mate choice for a wide range of vertebrate animals, but with mixed support for its significance in natural populations. Using formal phylogenetic meta-analysis and meta-regression techniques, we quantitatively review the existing literature on MHC-dependent mating preferences in...

Data from: Multi-serotype pneumococcal nasopharyngeal carriage prevalence in vaccine naïve Nepalese children, assessed using molecular serotyping.

Rama Kandasamy, Meeru Gurung, Anushil Thapa, Susan Ndimah, Neelam Adhikari, David R. Murdoch, Dominic F. Kelly, Denise E. Waldron, Katherine A. Gould, Stephen Thorson, Shrijana Shrestha, Jason Hinds & Andrew J. Pollard
Invasive pneumococcal disease is one of the major causes of death in young children in resource poor countries. Nasopharyngeal carriage studies provide insight into the local prevalence of circulating pneumococcal serotypes. There are very few data on the concurrent carriage of multiple pneumococcal serotypes. This study aimed to identify the prevalence and serotype distribution of pneumococci carried in the nasopharynx of young healthy Nepalese children prior to the introduction of a pneumococcal conjugate vaccine using...

Data from: Effects of genetic similarity on the life history strategy of co-infecting trematodes: are parasites capable of intra-host kin recognition?

Arnaud Joannes, Robert Poulin, Sophie Beltran-Bech & C. Lagrue
For conspecific parasites sharing the same host, kin recognition can be advantageous when the fitness of one individual depends on what another does; yet, evidence of kin recognition among parasites remains limited. Some trematodes, like Coitocaecum parvum, have plastic life cycles including two alternative life-history strategies. The parasite can wait for its intermediate host to be eaten by a fish definitive host, thus completing the classical three-host life cycle, or mature precociously and produce eggs...

Registration Year

  • 2014
    12

Resource Types

  • Dataset
    12

Affiliations

  • University of Otago
    12
  • University of Sydney
    2
  • Max Planck Institute for Ornithology
    1
  • Lund University
    1
  • University of Melbourne
    1
  • Flinders University
    1
  • Mahidol University
    1
  • University of Fribourg
    1
  • French National Centre for Scientific Research
    1
  • Patan Academy of Health Sciences
    1