What Determines the Risk of Trematode Infections in Amphipod Hosts?
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Zoogeography of Epigean Freshwater Amphipoda (Crustacea) in Romania: Fragmented Distributions and Wide Altitudinal Variability
Zootaxa 3893 (2): 243–260 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2014 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3893.2.5 http://zoobank.org/urn:lsid:zoobank.org:pub:8336FFDA-F1A5-4026-A5B6-CCEBFF84F40A Zoogeography of epigean freshwater Amphipoda (Crustacea) in Romania: fragmented distributions and wide altitudinal variability DENIS COPILAȘ-CIOCIANU1, MICHAŁ GRABOWSKI2, LUCIAN PÂRVULESCU3 & ADAM PETRUSEK1 1Charles University in Prague, Faculty of Science, Department of Ecology, Viničná 7, 12844, Prague, Czech Republic. E-mail: [email protected], [email protected] 2University of Łódź, Faculty of Biology and Environmental Protection, Department of Invertebrate Zoology & Hydrobiology, Banacha 12/16, 90-237, Łódź, Poland. E-mail: [email protected] 3West University of Timișoara, Faculty of Chemistry, Biology, Geography, Department of Biology and Chemistry, Pestalozzi 16A, 300115, Timișoara, Romania. E-mail: [email protected] Abstract Inland epigean freshwater amphipods of Romania are diverse and abundant for this region has a favourable geographical position between the Balkans and the Black Sea. Excluding Ponto-Caspian species originating in brackish waters and freshwater subterranean taxa, there are 11 formally recognized epigean freshwater species recorded from this country. They belong to 3 genera, each representing a different family: Gammarus (Gammaridae, 8 species or species complexes), Niphargus (Niphargidae, 2 epigean species) and Synurella (Crangonyctidae, one species). Their large-scale distribution patterns nevertheless remain obscure due to insufficient data, consequently limiting biogeographical interpretations. We provide extensive new data with high resolution distribution maps, thus improving the knowledge of the ranges of these taxa. -
Are Parasite Richness and Abundance Linked to Prey Species Richness and Individual Feeding Preferences in fish Hosts?
75 Are parasite richness and abundance linked to prey species richness and individual feeding preferences in fish hosts? ALYSSA R. CIRTWILL1, DANIEL B. STOUFFER1, ROBERT POULIN2 and CLÉMENT LAGRUE2* 1 Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand 2 Department of Zoology, University of Otago, 340 Great King Street, PO Box 56, Dunedin 9054, New Zealand (Received 1 July 2015; revised 8 October 2015; accepted 9 October 2015; first published online 17 November 2015) SUMMARY Variations in levels of parasitism among individuals in a population of hosts underpin the importance of parasites as an evolutionary or ecological force. Factors influencing parasite richness (number of parasite species) and load (abundance and biomass) at the individual host level ultimately form the basis of parasite infection patterns. In fish, diet range (number of prey taxa consumed) and prey selectivity (proportion of a particular prey taxon in the diet) have been shown to influence parasite infection levels. However, fish diet is most often characterized at the species or fish population level, thus ignoring variation among conspecific individuals and its potential effects on infection patterns among indivi- duals. Here, we examined parasite infections and stomach contents of New Zealand freshwater fish at the individual level. We tested for potential links between the richness, abundance and biomass of helminth parasites and the diet range and prey selectivity of individual fish hosts. There was no obvious link between individual fish host diet and hel- minth infection levels. Our results were consistent across multiple fish host and parasite species and contrast with those of earlier studies in which fish diet and parasite infection were linked, hinting at a true disconnect between host diet and measures of parasite infections in our study systems. -
Gobiomorphus Cotidianus
RESEARCH ARTICLE Body Condition Peaks at Intermediate Parasite Loads in the Common Bully Gobiomorphus cotidianus Alberto Maceda-Veiga1,2*, Andy J. Green3, Robert Poulin4, CleÂment Lagrue4 1 Department of Integrative Ecology, EstacioÂn BioloÂgica de Doñana-CSIC), Sevilla, Spain, 2 Institute of Research in Biodiversity (IRBio), Faculty of Biology, University of Barcelona, Barcelona, Spain, 3 Department of Wetland Ecology, EstacioÂn BioloÂgica de Doñana-CSIC, Sevilla, Spain, 4 Department of Zoology, University of Otago, Dunedin, New Zealand a1111111111 * [email protected] a1111111111 a1111111111 a1111111111 a1111111111 Abstract Most ecologists and conservationists perceive parasitic infections as deleterious for the hosts. Their effects, however, depend on many factors including host body condition, para- site load and the life cycle of the parasite. More research into how multiple parasite taxa OPEN ACCESS affect host body condition is required and will help us to better understand host-parasite Citation: Maceda-Veiga A, Green AJ, Poulin R, coevolution. We used body condition indices, based on mass-length relationships, to test Lagrue C (2016) Body Condition Peaks at the effects that abundances and biomasses of six parasite taxa (five trematodes, Apatemon Intermediate Parasite Loads in the Common Bully sp., Tylodelphys sp., Stegodexamene anguillae, Telogaster opisthorchis, Coitocaecum par- Gobiomorphus cotidianus. PLoS ONE 11(12): e0168992. doi:10.1371/journal.pone.0168992 vum, and the nematode Eustrongylides sp.) with different modes of transmission have on the body condition of their intermediate or final fish host, the common bully Gobiomorphus Editor: Heike Lutermann, University of Pretoria, SOUTH AFRICA cotidianus in New Zealand. We used two alternative body condition methods, the Scaled Mass Index (SMI) and Fulton's condition factor. -
And Interspecific Competition Among Helminth
Available online at www.sciencedirect.com International Journal for Parasitology 38 (2008) 1435–1444 www.elsevier.com/locate/ijpara Intra- and interspecific competition among helminth parasites: Effects on Coitocaecum parvum life history strategy, size and fecundity Cle´ment Lagrue *, Robert Poulin Department of Zoology, University of Otago, 340 Great King Street, P.O. Box 56, Dunedin 9054, New Zealand Received 5 February 2008; received in revised form 4 April 2008; accepted 7 April 2008 Abstract Larval helminths often share intermediate hosts with other individuals of the same or different species. Competition for resources and/ or conflicts over transmission routes are likely to influence both the association patterns between species and the life history strategies of each individual. Parasites sharing common intermediate hosts may have evolved ways to avoid or associate with other species depending on their definitive host. If not, individual parasites could develop alternative life history strategies in response to association with particular species. Three sympatric species of helminths exploit the amphipod Paracalliope fluviatilis as an intermediate host in New Zea- land: the acanthocephalan Acanthocephalus galaxii, the trematode Microphallus sp. and the progenetic trematode Coitocaecum parvum. Adult A. galaxii and C. parvum are both fish parasites whereas Microphallus sp. infects birds. We found no association, either positive or negative, among the three parasite species. The effects of intra- and interspecific interactions were also measured in the trematode C. parvum. Both intra- and interspecific competition seemed to affect both the life history strategy and the size and fecundity of C. parvum. Firstly, the proportion of progenesis was higher in metacercariae sharing their host with Microphallus sp., the bird parasite, than in any other situation. -
Parasites Shape Community Structure and Dynamics in Freshwater Crustaceans Cambridge.Org/Par
Parasitology Parasites shape community structure and dynamics in freshwater crustaceans cambridge.org/par Olwyn C. Friesen1 , Sarah Goellner2 , Robert Poulin1 and Clément Lagrue1,3 1 2 Research Article Department of Zoology, 340 Great King St, University of Otago, Dunedin 9016, New Zealand; Center for Integrative Infectious Diseases, Im Neuenheimer Feld 344, University of Heidelberg, Heidelberg 69120, Germany 3 Cite this article: Friesen OC, Goellner S, and Department of Biological Sciences, CW 405, Biological Sciences Building, University of Alberta, Edmonton, Poulin R, Lagrue C (2020). Parasites shape Alberta T6G 2E9, Canada community structure and dynamics in freshwater crustaceans. Parasitology 147, Abstract 182–193. https://doi.org/10.1017/ S0031182019001483 Parasites directly and indirectly influence the important interactions among hosts such as competition and predation through modifications of behaviour, reproduction and survival. Received: 24 June 2019 Such impacts can affect local biodiversity, relative abundance of host species and structuring Revised: 27 September 2019 Accepted: 27 September 2019 of communities and ecosystems. Despite having a firm theoretical basis for the potential First published online: 4 November 2019 effects of parasites on ecosystems, there is a scarcity of experimental data to validate these hypotheses, making our inferences about this topic more circumstantial. To quantitatively Key words: test parasites’ role in structuring host communities, we set up a controlled, multigenerational Host community; parasites; population dynamics; species composition mesocosm experiment involving four sympatric freshwater crustacean species that share up to four parasite species. Mesocosms were assigned to either of two different treatments, low or Author for correspondence: high parasite exposure. We found that the trematode Maritrema poulini differentially influ- Olwyn C. -
Manuscrit Début
Université de Bourgogne UMR CNRS 6282 Biogéosciences THÈSE Pour l’obtention du grade de Docteur de l’Université de Bourgogne Discipline : Sciences de la Vie Spécialité : Ecologie Evolutive Mating strategies and resulting patterns in mate guarding crustaceans: an empirical and theoretical approach Matthias Galipaud Directeur de thèse : Loïc Bollache Co-directeur de thèse : François-Xavier Dechaume-Moncharmont Jury Loïc Bollache, Professeur, Université de Bourgogne Directeur Frank Cézilly, Professeur, Université de Bourgogne Examinateur François-Xavier Dechaume-Moncharmont, Maître de conférences, Université de Bourgogne Directeur Tim W. Fawcett, Research associate, University of Bristol Examinateur Jacques Labonne, Chargé de recherche, INRA, Saint-Pée sur Nivelle Examinateur François Rousset, Directeur de recherche, CNRS, Université Montpellier II Rapporteur Michael Taborsky, Professor, University of BERN Rapporteur Remerciements Voici le résultat de plus de trois années de recherches que j’ai eu la chance d’effectuer au sein de l’équipe écologie/évolution du laboratoire Biogéosciences de l’université de Bourgogne. Ceci n’est pas un aboutissement puisque, je l’espère, il me reste encore de nombreuses choses à expérimenter et découvrir aussi bien concernant aussi bien la recherche en sélection sexuelle que celle en biologie évolutive en général. Pour m’avoir donné accès à un environnement de travail exceptionnel (les locaux dijonnais offrent un cadre idéal à la tenue de travaux de thèse) je tiens à remercier l’université de Bourgogne ainsi que Monsieur le directeur du laboratoire, le Professeur Pascal Neige. Cinq personnalités scientifiques m’ont fait l’honneur de faire partie de mon jury de thèse. Je voudrais tout d’abord remercier les deux rapporteurs de mon travail qui ont bien voulu prendre de leur temps pour me lire et m’apporter de précieuses corrections. -
Continental-Scale Patterns of Hyper-Cryptic Diversity
www.nature.com/scientificreports OPEN Continental‑scale patterns of hyper‑cryptic diversity within the freshwater model taxon Gammarus fossarum (Crustacea, Amphipoda) Remi Wattier1*, Tomasz Mamos2,3, Denis Copilaş‑Ciocianu4, Mišel Jelić5, Anthony Ollivier1, Arnaud Chaumot6, Michael Danger7, Vincent Felten7, Christophe Piscart8, Krešimir Žganec9, Tomasz Rewicz2,10, Anna Wysocka11, Thierry Rigaud1 & Michał Grabowski2* Traditional morphological diagnoses of taxonomic status remain widely used while an increasing number of studies show that one morphospecies might hide cryptic diversity, i.e. lineages with unexpectedly high molecular divergence. This hidden diversity can reach even tens of lineages, i.e. hyper cryptic diversity. Even well‑studied model‑organisms may exhibit overlooked cryptic diversity. Such is the case of the freshwater crustacean amphipod model taxon Gammarus fossarum. It is extensively used in both applied and basic types of research, including biodiversity assessments, ecotoxicology and evolutionary ecology. Based on COI barcodes of 4926 individuals from 498 sampling sites in 19 European countries, the present paper shows (1) hyper cryptic diversity, ranging from 84 to 152 Molecular Operational Taxonomic Units, (2) ancient diversifcation starting already 26 Mya in the Oligocene, and (3) high level of lineage syntopy. Even if hyper cryptic diversity was already documented in G. fossarum, the present study increases its extent fourfold, providing a frst continental‑scale insight into its geographical distribution and establishes several diversifcation hotspots, notably south‑eastern and central Europe. The challenges of recording hyper cryptic diversity in the future are also discussed. In many areas of biology, including biodiversity assessments, eco-toxicology, environmental monitoring, and behavioural ecology, the species status of the studied organisms relies only on a traditional morphological defnition1. -
University of Copenhagen
Assortative pairing in the amphipod Paracalliope fluviatilis: a role for parasites? Lefebvre, Francois; Fredensborg, Brian Lund; Armstrong, Amy; Hansen, Ellen; Poulin, Robert Published in: Hydrobiologia Publication date: 2005 Document version Early version, also known as pre-print Citation for published version (APA): Lefebvre, F., Fredensborg, B. L., Armstrong, A., Hansen, E., & Poulin, R. (2005). Assortative pairing in the amphipod Paracalliope fluviatilis: a role for parasites? Hydrobiologia, 545. Download date: 28. Sep. 2021 Hydrobiologia (2005) 545:65–73 Ó Springer 2005 DOI 10.1007/s10750-005-2211-0 Primary Research Paper Assortative pairing in the amphipod Paracalliope fluviatilis: a role for parasites? Franc¸ ois Lefebvre*, Brian Fredensborg, Amy Armstrong, Ellen Hansen & Robert Poulin Department of Zoology, University of Otago, P.O. Box 56, Dunedin, New Zealand (*Author for correspondence: E-mail: [email protected]) Received 10 November 2004; in revised form 26 January 2005; accepted 13 February 2005 Key words: Amphipoda, Trematoda, Coitocaecum parvum, Microphallus sp., reproduction, mate choice Abstract The potential impact of parasitism on pairing patterns of the amphipod Paracalliope fluviatilis was investigated with regard to the infection status of both males and females. Two helminth parasites com- monly use this crustacean species as second intermediate host. One of them, Coitocaecum parvum,isa progenetic trematode with an egg-producing metacercaria occasionally reaching 2.0 mm in length, i.e. more than 50% the typical length of its amphipod host. The amphipod was shown to exhibit the common reproductive features of most precopula pair-forming crustaceans, i.e. larger males and females among pairs than among singles, more fecund females in pairs, and a trend for size-assortative pairing. -
2899 Information About Transmission Opportunities
BRIEF COMMUNICATIONS 2899 Evolution, 57(12), 2003, pp. 2899±2903 INFORMATION ABOUT TRANSMISSION OPPORTUNITIES TRIGGERS A LIFE-HISTORY SWITCH IN A PARASITE ROBERT POULIN Department of Zoology, University of Otago, P.O. Box 56, Dunedin, New Zealand E-mail: [email protected] Abstract. Many microbial pathogens can switch to new hosts or adopt alternative transmission routes as environmental conditions change, displaying unexpected ¯exibility in their infection pathways and often causing emerging diseases. In contrast, parasitic worms that must develop through a ®xed series of host species appear less likely to show phenotypic plasticity in their transmission pathways. Here, I demonstrate experimentally that a trematode parasite, Coitocaecum parvum, can accelerate its development and rapidly reach precocious maturity in its crustacean inter- mediate host in the absence of chemical cues emanating from its ®sh de®nitive host. Juvenile trematodes can also mature precociously when the mortality rate of their intermediate hosts is increased. Eggs produced by precocious adults hatch into viable larvae, capable of pursuing the parasite's life cycle. In the absence of chemical cues from ®sh hosts, the size of eggs released by precocious trematodes in their intermediate hosts becomes more variable, possibly indicating a bet-hedging strategy. These results illustrate that parasitic worms with complex life cycles have development and transmission strategies that are more plastic than commonly believed, allowing them to skip one host -
Impacts of Sedimentation on the Structure And
IMPACTS OF SEDIMENTATION ON THE STRUCTURE AND FUNCTIONING OF AGRICULTURAL STREAM COMMUNITIES A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy in Ecology in the University of Canterbury by Francis J. Burdon University of Canterbury 2013 Deputy Vice-Chancellor’s Office Postgraduate Office Co-Authorship Form This form is to accompany the submission of any thesis that contains research reported in co- authored work that has been published, accepted for publication, or submitted for publication. A copy of this form should be included for each co-authored work that is included in the thesis. Completed forms should be included at the front (after the thesis abstract) of each copy of the thesis submitted for examination and library deposit. Please indicate the chapter/section/pages of this thesis that are extracted from co-authored work and provide details of the publication or submission from the extract comes: Chapter 1: “Sedimentation and stream ecosystems: a review of impacts on community structure and functioning” by Francis J. Burdon and Jon S. Harding has been submitted for review and comments have been received. Chapter 2: “Habitat loss drives threshold response of benthic invertebrate communities to deposited sediment in agricultural streams” by Francis J. Burdon, Angus R. McIntosh, and Jon S. Harding is in press in the journal “Ecological Applications” Please detail the nature and extent (%) of contribution by the candidate: In Chapter 1, the data analysis and writing were largely performed by the candidate as lead author (95% of total contribution). In Chapter 2, the data analysis and writing were largely performed by the candidate as lead author (90% of total contribution) Certification by Co-authors: If there is more than one co-author then a single co-author can sign on behalf of all The undersigned certifys that: . -
Amphipod Newsletter 44 2020
AMPHIPOD NEWSLETTER 44 2020 BIBLIOGRAPHY “THE OLD PHOTO” JEAN-CLAUDE SORBE VADIM V. TAKHTEEV PAGE 11 PAGE 65 IN MEMORIAM IN MEMORIAM PAGE 2 PAGE 6 ICA 19 PAGE 64 AMPHIPOD NEWSLETTER 44 Dear Amphipodologists, We hope this newsletter finds of you safe and healthy. The time since many of us last met in Dijon for a wonderful week of amphipodology has been difficult and heartbreaking. Many of us have also been sent into isolation Statistics from and “home-officing”, and the daily contact with our colleagues is now more than ever depending on emails and electronic platforms for contact. this Newsletter Conferences and meetings are rapidly being moved to electronic platforms 4 new higher taxa or postponed, the latter being the case for our beloved ICA, see more about that on page 64. 7 new families We are happy to see that the facebook group is active, and our bibliography 3 new subfamilies might give indication that, for some of us, the time away from the lab has 19 new genera brought about the possibility to focus on writing. Writing publications is not an easy task when combined with homeschooling or care for family- 92 new species members and neighbours “locked up” in their homes, and we are very impressed with the 397 publications the bibliography presents. Also, make sure to check out the last page for a new feature: “the old photo”. We hope this will bring happy memories to some, and pleasure to all. 2020 has also seen the debate of scientific recognition (in the form of impact factor) for one of the journals several of our taxonomy-oriented colleagues are using - Zootaxa. -
The Evolutionary Ecology of Complex Lifecycle Parasites: Linking Phenomena with Mechanisms
CORE Metadata, citation and similar papers at core.ac.uk Provided by Stirling Online Research Repository OPEN Heredity (2015) 114, 125–132 & 2015 Macmillan Publishers Limited All rights reserved 0018-067X/15 www.nature.com/hdy REVIEW The evolutionary ecology of complex lifecycle parasites: linking phenomena with mechanisms SKJR Auld and MC Tinsley Many parasitic infections, including those of humans, are caused by complex lifecycle parasites (CLPs): parasites that sequentially infect different hosts over the course of their lifecycle. CLPs come from a wide range of taxonomic groups—from single-celled bacteria to multicellular flatworms—yet share many common features in their life histories. Theory tells us when CLPs should be favoured by selection, but more empirical studies are required in order to quantify the costs and benefits of having a complex lifecycle, especially in parasites that facultatively vary their lifecycle complexity. In this article, we identify ecological conditions that favour CLPs over their simple lifecycle counterparts and highlight how a complex lifecycle can alter transmission rate and trade-offs between growth and reproduction. We show that CLPs participate in dynamic host–parasite coevolution, as more mobile hosts can fuel CLP adaptation to less mobile hosts. Then, we argue that a more general understanding of the evolutionary ecology of CLPs is essential for the development of effective frameworks to manage the many diseases they cause. More research is needed identifying the genetics of infection mechanisms used by CLPs, particularly into the role of gene duplication and neofunctionalisation in lifecycle evolution. We propose that testing for signatures of selection in infection genes will reveal much about how and when complex lifecycles evolved, and will help quantify complex patterns of coevolution between CLPs and their various hosts.