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  1. Article ; Online: Genomic and morphological evidence of distinct populations in the endemic common (weedy) seadragon Phyllopteryx taeniolatus (Syngnathidae) along the east coast of Australia.

    Klanten, O Selma / Gaither, Michelle R / Greaves, Samuel / Mills, Kade / O'Keeffe, Kristine / Turnbull, John / McKinnon, Rob / Booth, David J

    PloS one

    2020  Volume 15, Issue 12, Page(s) e0243446

    Abstract: The common or weedy seadragon, Phyllopteryx taeniolatus, is an iconic and endemic fish found across temperate reefs of southern Australia. Despite its charismatic nature, few studies have been published, and the extent of population sub-structuring ... ...

    Abstract The common or weedy seadragon, Phyllopteryx taeniolatus, is an iconic and endemic fish found across temperate reefs of southern Australia. Despite its charismatic nature, few studies have been published, and the extent of population sub-structuring remains poorly resolved. Here we used 7462 single nucleotide polymorphisms (SNPs) to identify the extent of population structure in the weedy seadragon along the temperate southeast coast of Australia. We identified four populations, with strong genetic structure (FST = 0.562) between them. Both Discriminant Analysis of Principle Components (DAPC) and Bayesian clustering analyses support four distinct genetic clusters (north to south: central New South Wales, southern NSW, Victoria and Tasmania). In addition to these genetic differences, geographical variation in external morphology was recorded, with individuals from New South Wales shaped differently for a few measurements to those from the Mornington Peninsula (Victoria). We posit that these genetic and morphological differences suggest that the Victorian population of P. taeniolatus was historically isolated by the Bassian Isthmus during the last glacial maximum and should now be considered at least a distinct population. We also recorded high levels of genetic structure among the other locations. Based on the genomic and to a degree morphological evidence presented in this study, we recommend that the Victorian population be managed separately from the eastern populations (New South Wales and Tasmania).
    MeSH term(s) Animals ; Bayes Theorem ; Discriminant Analysis ; Genetic Variation ; Genotype ; Polymorphism, Single Nucleotide ; Principal Component Analysis ; Smegmamorpha/anatomy & histology ; Smegmamorpha/genetics ; South Australia
    Language English
    Publishing date 2020-12-23
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0243446
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Scaling of Activity Space in Marine Organisms across Latitudinal Gradients.

    Udyawer, Vinay / Huveneers, Charlie / Jaine, Fabrice / Babcock, Russell C / Brodie, Stephanie / Buscot, Marie-Jeanne / Campbell, Hamish A / Harcourt, Robert G / Hoenner, Xavier / Lédée, Elodie J I / Simpfendorfer, Colin A / Taylor, Matthew D / Armstrong, Asia / Barnett, Adam / Brown, Culum / Bruce, Barry / Butcher, Paul A / Cadiou, Gwenael / Couturier, Lydie I E /
    Currey-Randall, Leanne / Drew, Michael / Dudgeon, Christine L / Dwyer, Ross G / Espinoza, Mario / Ferreira, Luciana C / Fowler, Anthony / Harasti, David / Harborne, Alastair R / Knott, Nathan A / Lee, Kate / Lloyd, Matt / Lowry, Michael / Marzullo, Teagan / Matley, Jordan / McAllister, Jaime D / McAuley, Rory / McGregor, Frazer / Meekan, Mark / Mills, Kade / Norman, Bradley M / Oh, Beverly / Payne, Nicholas L / Peddemors, Vic / Piddocke, Toby / Pillans, Richard D / Reina, Richard D / Rogers, Paul / Semmens, Jayson M / Smoothey, Amy / Speed, Conrad W / van der Meulen, Dylan / Heupel, Michelle R

    The American naturalist

    2023  Volume 201, Issue 4, Page(s) 586–602

    Abstract: AbstractUnifying models have shown that the amount of space used by animals (e.g., activity space, home range) scales allometrically with body mass for terrestrial taxa; however, such relationships are far less clear for marine species. We compiled ... ...

    Abstract AbstractUnifying models have shown that the amount of space used by animals (e.g., activity space, home range) scales allometrically with body mass for terrestrial taxa; however, such relationships are far less clear for marine species. We compiled movement data from 1,596 individuals across 79 taxa collected using a continental passive acoustic telemetry network of acoustic receivers to assess allometric scaling of activity space. We found that ectothermic marine taxa do exhibit allometric scaling for activity space, with an overall scaling exponent of 0.64. However, body mass alone explained only 35% of the variation, with the remaining variation best explained by trophic position for teleosts and latitude for sharks, rays, and marine reptiles. Taxon-specific allometric relationships highlighted weaker scaling exponents among teleost fish species (0.07) than sharks (0.96), rays (0.55), and marine reptiles (0.57). The allometric scaling relationship and scaling exponents for the marine taxonomic groups examined were lower than those reported from studies that had collated both marine and terrestrial species data derived using various tracking methods. We propose that these disparities arise because previous work integrated summarized data across many studies that used differing methods for collecting and quantifying activity space, introducing considerable uncertainty into slope estimates. Our findings highlight the benefit of using large-scale, coordinated animal biotelemetry networks to address cross-taxa evolutionary and ecological questions.
    MeSH term(s) Animals ; Aquatic Organisms ; Fishes ; Homing Behavior
    Language English
    Publishing date 2023-02-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 207092-3
    ISSN 1537-5323 ; 0003-0147
    ISSN (online) 1537-5323
    ISSN 0003-0147
    DOI 10.1086/723405
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Continental‐scale acoustic telemetry and network analysis reveal new insights into stock structure

    Lédée, Elodie J. I. / Heupel, Michelle R. / Taylor, Matthew D. / Harcourt, Robert G. / Jaine, Fabrice R. A. / Huveneers, Charlie / Udyawer, Vinay / Campbell, Hamish A. / Babcock, Russell C. / Hoenner, Xavier / Barnett, Adam / Braccini, Matias / Brodie, Stephanie / Butcher, Paul A. / Cadiou, Gwenael / Dwyer, Ross G. / Espinoza, Mario / Ferreira, Luciana C. / Fetterplace, Lachlan /
    Fowler, Anthony / Harborne, Alastair R. / Knott, Nathan A. / Lowry, Michael / McAllister, Jaime / McAuley, Rory / Meekan, Mark / Mills, Kade / Peddemors, Victor M. / Pillans, Richard / Semmens, Jayson / Smoothey, Amy F. / Speed, Conrad / Stehfest, Kilian / van der Meulen, Dylan / Simpfendorfer, Colin A.

    Fish and fisheries. 2021 Sept., v. 22, no. 5

    2021  

    Abstract: Delineation of population structure (i.e. stocks) is crucial to successfully manage exploited species and to address conservation concerns for threatened species. Fish migration and associated movements are key mechanisms through which discrete ... ...

    Abstract Delineation of population structure (i.e. stocks) is crucial to successfully manage exploited species and to address conservation concerns for threatened species. Fish migration and associated movements are key mechanisms through which discrete populations mix and are thus important determinants of population structure. Detailed information on fish migration and movements is becoming more accessible through advances in telemetry and analysis methods however such information is not yet used systematically in stock structure assessment. Here, we described how detections of acoustically tagged fish across a continental‐scale array of underwater acoustic receivers were used to assess stock structure and connectivity in seven teleost and seven shark species and compared to findings from genetic and conventional tagging. Network analysis revealed previously unknown population connections in some species, and in others bolstered support for existing stock discrimination by identifying nodes and routes important for connectivity. Species with less variability in their movements required smaller sample sizes (45–50 individuals) to reveal useful stock structure information. Our study shows the power of continental‐scale acoustic telemetry networks to detect movements among fishery jurisdictions. We highlight methodological issues that need to be considered in the design of acoustic telemetry studies for investigating stock structure and the interpretation of the resulting data. The advent of broad‐scale acoustic telemetry networks across the globe provides new avenues to understand how movement informs population structure and can lead to improved management.
    Keywords acoustics ; fisheries ; migratory behavior ; population structure ; sharks ; telemetry ; threatened species
    Language English
    Dates of publication 2021-09
    Size p. 987-1005.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 2024569-5
    ISSN 1467-2979 ; 1467-2960
    ISSN (online) 1467-2979
    ISSN 1467-2960
    DOI 10.1111/faf.12565
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Quantifying and addressing the prevalence and bias of study designs in the environmental and social sciences.

    Christie, Alec P / Abecasis, David / Adjeroud, Mehdi / Alonso, Juan C / Amano, Tatsuya / Anton, Alvaro / Baldigo, Barry P / Barrientos, Rafael / Bicknell, Jake E / Buhl, Deborah A / Cebrian, Just / Ceia, Ricardo S / Cibils-Martina, Luciana / Clarke, Sarah / Claudet, Joachim / Craig, Michael D / Davoult, Dominique / De Backer, Annelies / Donovan, Mary K /
    Eddy, Tyler D / França, Filipe M / Gardner, Jonathan P A / Harris, Bradley P / Huusko, Ari / Jones, Ian L / Kelaher, Brendan P / Kotiaho, Janne S / López-Baucells, Adrià / Major, Heather L / Mäki-Petäys, Aki / Martín, Beatriz / Martín, Carlos A / Martin, Philip A / Mateos-Molina, Daniel / McConnaughey, Robert A / Meroni, Michele / Meyer, Christoph F J / Mills, Kade / Montefalcone, Monica / Noreika, Norbertas / Palacín, Carlos / Pande, Anjali / Pitcher, C Roland / Ponce, Carlos / Rinella, Matt / Rocha, Ricardo / Ruiz-Delgado, María C / Schmitter-Soto, Juan J / Shaffer, Jill A / Sharma, Shailesh / Sher, Anna A / Stagnol, Doriane / Stanley, Thomas R / Stokesbury, Kevin D E / Torres, Aurora / Tully, Oliver / Vehanen, Teppo / Watts, Corinne / Zhao, Qingyuan / Sutherland, William J

    Nature communications

    2020  Volume 11, Issue 1, Page(s) 6377

    Abstract: Building trust in science and evidence-based decision-making depends heavily on the credibility of studies and their findings. Researchers employ many different study designs that vary in their risk of bias to evaluate the true effect of interventions or ...

    Abstract Building trust in science and evidence-based decision-making depends heavily on the credibility of studies and their findings. Researchers employ many different study designs that vary in their risk of bias to evaluate the true effect of interventions or impacts. Here, we empirically quantify, on a large scale, the prevalence of different study designs and the magnitude of bias in their estimates. Randomised designs and controlled observational designs with pre-intervention sampling were used by just 23% of intervention studies in biodiversity conservation, and 36% of intervention studies in social science. We demonstrate, through pairwise within-study comparisons across 49 environmental datasets, that these types of designs usually give less biased estimates than simpler observational designs. We propose a model-based approach to combine study estimates that may suffer from different levels of study design bias, discuss the implications for evidence synthesis, and how to facilitate the use of more credible study designs.
    MeSH term(s) Bias ; Biodiversity ; Ecology ; Environment ; Humans ; Literature ; Prevalence ; Research Design ; Social Sciences
    Language English
    Publishing date 2020-12-11
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-020-20142-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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