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Silva JOS, Stabile BHM, da Graça RJ, Oliveira AV, Takemoto RM. Ornamental fish mortality reveals an old parasite introduction: A case study of Koi carp and fish louse. Vet Parasitol Reg Stud Reports 2024; 51:101034. [PMID: 38772644 DOI: 10.1016/j.vprsr.2024.101034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/05/2024] [Accepted: 05/05/2024] [Indexed: 05/23/2024]
Abstract
Koi carp are globally known for their colors and cultural significance. The introduction of these fish to new environments poses a threat to local biodiversity, in addition to releasing parasites, such as argulid ectoparasites. This study presents a record of Argulus japonicus infecting carp in an artificial lake in Southern Brazil using morphological and molecular methods, with a 100% prevalence (n = 3) and a mean intensity of 21.6 parasites per host, distributed over the body surface. The invasion history of hosts in the study locality indicates that the introduction of A. japonicus occurred decades before its first formal record in Brazil.
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Affiliation(s)
- João Otávio Santos Silva
- Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Laboratório de Ictioparasitologia, Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil
| | - Bruno Henrique Mioto Stabile
- Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Laboratório de Genética Molecular, Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil.
| | - Rodrigo Junio da Graça
- Programa de Pós-graduação em Biologia Comparada, Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil
| | - Alessandra Valéria Oliveira
- Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Laboratório de Genética Molecular, Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil; Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil; Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil
| | - Ricardo Massato Takemoto
- Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Laboratório de Ictioparasitologia, Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil; Programa de Pós-graduação em Biologia Comparada, Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil; Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Universidade Estadual de Maringá - UEM, Maringá, Paraná, Brazil
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de Carvalho-Souza GF, Gómez CL, González-Ortegón E. A non-native fish species reaches the south-western European waters: the Atlantic croaker, Micropogoniasundulatus (Acanthuriformes, Sciaenidae) and its invasion history in Europe. Biodivers Data J 2024; 12:e120736. [PMID: 38779570 PMCID: PMC11109509 DOI: 10.3897/bdj.12.e120736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024] Open
Abstract
The Atlantic croaker Micropogoniasundulatus, a sciaenid fish native to the North Atlantic American coast, holds importance in recreational and commercial fisheries. Moreover, its potential as an invasive species should be noted, given its expansion and establishment in Atlantic European waters. This study reports its southernmost occurrence in Europe, in the Gulf of Cadiz. Morphological and molecular analysis confirmed its identity, revealing genetic similarities to US sequences. A comprehensive review of historical non-native distribution records underscored the species' expansion throughout European waters, suggesting human-mediated introduction. The escalating frequency of such arrivals emphasises the critical need for effective monitoring and management efforts in order to control non-native species in this region.
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Affiliation(s)
- Gustavo Freire de Carvalho-Souza
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Puerto Real, SpainInstituto de Ciencias Marinas de Andalucía (ICMAN-CSIC)Puerto RealSpain
- Universidad de Cádiz, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional/Global del Mar (CEI·MAR), Puerto Real, SpainUniversidad de Cádiz, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional/Global del Mar (CEI·MAR)Puerto RealSpain
| | - Cristóbal Lobato Gómez
- Agencia de Gestión Agraria y Pesquera de Andalucía, Sevilla, SpainAgencia de Gestión Agraria y Pesquera de AndalucíaSevillaSpain
| | - Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Puerto Real, SpainInstituto de Ciencias Marinas de Andalucía (ICMAN-CSIC)Puerto RealSpain
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Scholz T, Davidovich N. Amirthalingamia macracantha. Trends Parasitol 2024; 40:429-430. [PMID: 38336599 DOI: 10.1016/j.pt.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024]
Affiliation(s)
- Tomáš Scholz
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic.
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Outa JO, Bhika P, Avenant-Oldewage A. Gastropod invasions in anthropogenically impacted impoundments in South Africa: Tracing their origins and exploring field evidence of parasite spillback and amplification. Int J Parasitol 2024; 54:279-301. [PMID: 38452963 DOI: 10.1016/j.ijpara.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/12/2024] [Accepted: 02/29/2024] [Indexed: 03/09/2024]
Abstract
Invasive snails are associated with ecological problems in freshwater bodies worldwide. However, their impact on the transmission of digenean infections remain underreported. In the present study, 1708 specimens representing four snail species were sampled from four impoundments in the Limpopo River system in South Africa. Gyraulus chinensis (Planorbidae), Physella acuta (Physidae) and Pseudosuccinea columella (Lymnaeidae), which are invasive, were found in all the sampling sites. In contrast, the native lymnaeid Radix natalensis occurred at only one study site. Digeneans were observed only from R. natalensis (prevalence = 49%) and Ps. columella (prevalence = 23%). Morphological and genetic analyses revealed four digeneans: Fasciola nyanzae, Orientocreadium sp., Petasiger sp. and Patagifer vioscai. Pseudosuccinea columella was infected by the four digeneans while R. natalensis harboured only Orientocreadium sp. and Petasiger sp. Partial sequences of Orientocreadium sp. from the current study differed from congeners whose DNA data are available on GenBank, by p-distances of at least 1.84 and 2.2% for 28S and the internal transcribed spacer (ITS) rDNA, respectively. Phylogenetic analyses demonstrated that the present species is sister to Orientocreadium batrachoides. Genetic and phylogenetic data based on 28S and ITS rDNA suggested that Petasiger sp. from the present study and isolates of three unidentified Petasiger spp. from Kenya, Hungary and Australia, were representatives of the same species. This is the first known report of Orientocreadium, Petasiger and Patagifer from Ps. columella. The occurrence of F. nyanzae in Ps. columella indicates spillback from R. natalensis. These findings echo the concerns raised in previous studies about the potential role of Ps. columella in the amplification of digenean diseases in its introduced range. Phylogenetic analyses of partial sequences of the cytochrome c oxidase subunit 1 mitochondrial gene (cox1) showed multiple lineages of Ps. columella in North and South America. Pseudosuccinea columella specimens from the present study belong to an invasive genotype that has spread globally and has been reported from Zimbabwe, Egypt, Portugal, Australia, Argentina, Colombia and New Mexico (USA). Physella acuta from the current study had a stronger genetic relationship with isolates from Canada and Iceland, than with isolates from other parts of Africa, suggesting several invasion routes into Africa. This is the first known DNA characterisation of G. chinensis from Africa. Phylogenetic reconstruction indicated multiple exit events of G. chinensis from Asia into Europe and Africa. South African isolates clustered in a recent branch containing isolates from the Czech Republic and Hong Kong, China. Considering the presence of invasive snails in all the sampling sites in the present study, it is necessary to investigate the factors that enhance their establishment and to monitor their effects on the native snail populations.
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Affiliation(s)
- James Omondi Outa
- University of Johannesburg, Department of Zoology, Auckland Park B-2006, Johannesburg, South Africa. https://twitter.com/OutaJames
| | - Parthi Bhika
- University of Johannesburg, Department of Zoology, Auckland Park B-2006, Johannesburg, South Africa
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Mowery MA, Rosenwald LC, Chapman E, Lubin Y, Segoli M, Khoza T, Lyle R, White JA. Endosymbiont diversity across native and invasive brown widow spider populations. Sci Rep 2024; 14:8556. [PMID: 38609398 PMCID: PMC11014918 DOI: 10.1038/s41598-024-58723-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
The invasive brown widow spider, Latrodectus geometricus (Araneae: Theridiidae), has spread in multiple locations around the world and, along with it, brought associated organisms such as endosymbionts. We investigated endosymbiont diversity and prevalence across putative native and invasive populations of this spider, predicting lower endosymbiont diversity across the invasive range compared to the native range. First, we characterized the microbial community in the putative native (South Africa) and invasive (Israel and the United States) ranges via high throughput 16S sequencing of 103 adult females. All specimens were dominated by reads from only 1-3 amplicon sequence variants (ASV), and most individuals were infected with an apparently uniform strain of Rhabdochlamydia. We also found Rhabdochlamydia in spider eggs, indicating that it is a maternally-inherited endosymbiont. Relatively few other ASV were detected, but included two variant Rhabdochlamydia strains and several Wolbachia, Spiroplasma and Enterobacteriaceae strains. We then diagnostically screened 118 adult female spiders from native and invasive populations specifically for Rhabdochlamydia and Wolbachia. We found Rhabdochlamydia in 86% of individuals and represented in all populations, which suggests that it is a consistent and potentially important associate of L. geometricus. Wolbachia was found at lower overall prevalence (14%) and was represented in all countries, but not all populations. In addition, we found evidence for geographic variation in endosymbiont prevalence: spiders from Israel were more likely to carry Rhabdochlamydia than those from the US and South Africa, and Wolbachia was geographically clustered in both Israel and South Africa. Characterizing endosymbiont prevalence and diversity is a first step in understanding their function inside the host and may shed light on the process of spread and population variability in cosmopolitan invasive species.
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Affiliation(s)
- Monica A Mowery
- Mitrani Department of Desert Ecology, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion, Israel.
- Department of Biology, York College, The City University of New York, Jamaica, NY, USA.
| | - Laura C Rosenwald
- Department of Entomology, University of Kentucky, Lexington, KY, USA
| | - Eric Chapman
- Department of Entomology, University of Kentucky, Lexington, KY, USA
| | - Yael Lubin
- Mitrani Department of Desert Ecology, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion, Israel
| | - Michal Segoli
- Mitrani Department of Desert Ecology, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion, Israel
| | - Thembile Khoza
- South African National Biodiversity Institute, Biosystematics Division, Pretoria, South Africa
| | - Robin Lyle
- Agricultural Research Council-Plant Health and Protection, Biosystematics Division, Queenswood, South Africa
| | - Jennifer A White
- Department of Entomology, University of Kentucky, Lexington, KY, USA
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Dudliv I, Kvach Y, Tkachenko MY, Nazaruk K, Ondračková M. Comparative Analysis of Parasite Load on Recently Established Invasive Pumpkinseed Lepomis gibbosus (Actinopterygii: Centrarchidae) in Europe. Acta Parasitol 2024; 69:819-830. [PMID: 38429543 PMCID: PMC11001714 DOI: 10.1007/s11686-024-00794-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/12/2024] [Indexed: 03/03/2024]
Abstract
PURPOSE The aim of this study was the comparative analysis of the parasite communities of new populations of invasive pumpkinseed (Lepomis gibbosus) in western Ukraine with pumpkinseed from Czechia, where populations have rapidly expanded over the last two decades. METHODS Sampling took place at three localities in the western part of Ukraine (i.e. Dobrotvir Reservoir (Vistula basin), Burshtyn Reservoir (Dniester basin), Mynai Pond (Danube basin)) and four in Czechia (i.e. Oxbow D2, Heršpický Pond (Danube basin), and Kolín oxbow and Římov Reservoir (Elbe basin). RESULTS In total, 11 parasite taxa were recorded in Ukraine and 17 in Czechia. Four species were co-introduced from North America with their host, i.e. the myxosporean Myxobolus dechtiari, the monogeneans Onchocleidus dispar and Onchocleidus similis, and metacercariae of a trematode Posthodiplostomum centrarchi. High dominance indices were related to a high abundance of co-introduced parasites, i.e. O. similis in Mynai pond and P. centrarchi in Dobrotvir Reservoir. Overall abundance of acquired parasites was generally low. CONCLUSION This study shows that parasite communities in recently established pumpkinseed populations in the western part of Ukraine and Czechia are less diverse than those established in Europe for decades. The generally low parasite load in these new populations may play an important role in their ability to successfully establish and create strong populations by providing a competitive advantage over local species.
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Affiliation(s)
- Ivanna Dudliv
- Department of Zoology, Ivan Franko National University of Lviv, Hrushevskyi Str. 4, Lviv, 79005, Ukraine.
| | - Yuriy Kvach
- Institute of Vertebrate Biology of the Czech Academy of Sciences, Brno, Czech Republic
- Institute of Marine Biology, National Academy of Sciences of Ukraine, Odesa, Ukraine
| | - Maria Yu Tkachenko
- Institute of Vertebrate Biology of the Czech Academy of Sciences, Brno, Czech Republic
| | - Kateryna Nazaruk
- Department of Zoology, Ivan Franko National University of Lviv, Hrushevskyi Str. 4, Lviv, 79005, Ukraine
| | - Markéta Ondračková
- Institute of Vertebrate Biology of the Czech Academy of Sciences, Brno, Czech Republic
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Doublet V, Oddie MAY, Mondet F, Forsgren E, Dahle B, Furuseth-Hansen E, Williams GR, De Smet L, Natsopoulou ME, Murray TE, Semberg E, Yañez O, de Graaf DC, Le Conte Y, Neumann P, Rimstad E, Paxton RJ, de Miranda JR. Shift in virus composition in honeybees ( Apis mellifera) following worldwide invasion by the parasitic mite and virus vector Varroa destructor. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231529. [PMID: 38204792 PMCID: PMC10776227 DOI: 10.1098/rsos.231529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/13/2023] [Indexed: 01/12/2024]
Abstract
Invasive vectors can induce dramatic changes in disease epidemiology. While viral emergence following geographical range expansion of a vector is well known, the influence a vector can have at the level of the host's pathobiome is less well understood. Taking advantage of the formerly heterogeneous spatial distribution of the ectoparasitic mite Varroa destructor that acts as potent virus vector among honeybees Apis mellifera, we investigated the impact of its recent global spread on the viral community of honeybees in a retrospective study of historical samples. We hypothesized that the vector has had an effect on the epidemiology of several bee viruses, potentially altering their transmissibility and/or virulence, and consequently their prevalence, abundance, or both. To test this, we quantified the prevalence and loads of 14 viruses from honeybee samples collected in mite-free and mite-infested populations in four independent geographical regions. The presence of the mite dramatically increased the prevalence and load of deformed wing virus, a cause of unsustainably high colony losses. In addition, several other viruses became more prevalent or were found at higher load in mite-infested areas, including viruses not known to be actively varroa-transmitted, but which may increase opportunistically in varroa-parasitized bees.
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Affiliation(s)
- Vincent Doublet
- Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Institute for Biology, Martin Luther University Halle-Wittenberg, Halle (Saale) 061200, Germany
| | - Melissa A. Y. Oddie
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala 750 07, Sweden
- Norwegian Beekeepers Association, Kløfta 2040, Norway
| | - Fanny Mondet
- INRAE, UR 406 Abeilles et Environnement, Avignon 84914, France
| | - Eva Forsgren
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala 750 07, Sweden
| | - Bjørn Dahle
- Norwegian Beekeepers Association, Kløfta 2040, Norway
| | - Elisabeth Furuseth-Hansen
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, Ås 1432, Norway
| | - Geoffrey R. Williams
- Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern 3097, Switzerland
- Entomology & Plant Pathology, Auburn University, Auburn, AL 36832, USA
| | - Lina De Smet
- Department of Biochemistry and Microbiology, Ghent University, Ghent 9000, Belgium
| | - Myrsini E. Natsopoulou
- Institute for Biology, Martin Luther University Halle-Wittenberg, Halle (Saale) 061200, Germany
| | - Tomás E. Murray
- Institute for Biology, Martin Luther University Halle-Wittenberg, Halle (Saale) 061200, Germany
| | - Emilia Semberg
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala 750 07, Sweden
| | - Orlando Yañez
- Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern 3097, Switzerland
| | - Dirk C. de Graaf
- Department of Biochemistry and Microbiology, Ghent University, Ghent 9000, Belgium
| | - Yves Le Conte
- INRAE, UR 406 Abeilles et Environnement, Avignon 84914, France
| | - Peter Neumann
- Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern 3097, Switzerland
| | - Espen Rimstad
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, Ås 1432, Norway
| | - Robert J. Paxton
- Institute for Biology, Martin Luther University Halle-Wittenberg, Halle (Saale) 061200, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, 04103, Germany
| | - Joachim R. de Miranda
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala 750 07, Sweden
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Davidovich N, Yasur-Landau D, Behar A, Pretto T, Scholz T. Invasive parasites and global change: Evidence for the recent and rapid spillover of a potential pathogen of tilapias with a complex, three-host life cycle. Heliyon 2023; 9:e18831. [PMID: 37674833 PMCID: PMC10477445 DOI: 10.1016/j.heliyon.2023.e18831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/12/2023] [Accepted: 07/31/2023] [Indexed: 09/08/2023] Open
Abstract
Biological invasions pose a serious threat to local flora and fauna and have negative impacts on ecosystems. Invasive parasites can also cause severe losses in aquaculture. In this article, we provide evidence of the recent spillover of an African parasite with a complex, three-host life cycle that has rapidly and successfully established itself in the Middle East, most likely due to the recent migration of its final hosts (great cormorant) from Africa. This case of parasite introduction into a country with intensive aquaculture is also important from an economic point of view, since large (up to 2 cm long) larvae of this parasite, the cyclophyllidean tapeworm Amirthalingamia macracantha (Cestoda) localised in the liver, can be pathogenic to their fish hosts, including farmed and wild fish, as shown by our histopathological examination of heavily infected fish. Since its first detection in Israel in November 2020, the parasite has spread rapidly and is currently found in both migratory (great cormorant, Phalacrocorax carbo) and non-migratory birds (pygmy cormorant, Microcarbo pygmaeus), as well as in fish intermediate hosts, including farmed tilapia in several farms in Israel and wild cichlids. There are numerous examples of the spillover of introduced parasites, including those that parasitise fish of commercial importance, but have a direct life cycle or use only a single intermediate host. Tilapines are the second most important group of farmed fish in the world after carps and are produced mainly in Southeast Asia, Central and South America. The global spread of great cormorants and the early evidence that pygmy cormorant may also harbour A. macracantha pose the risk of further spread of this invasive parasite to other countries and areas. In addition, global warming and reductions in foraging and resting areas near these waters may allow the parasite to complete its life cycle in new hosts.
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Affiliation(s)
- Nadav Davidovich
- Israeli Veterinary Services and Animal Health, Fish Health, Bet Dagan, 5025001, Israel
| | - Daniel Yasur-Landau
- Kimron Veterinary Institute, Division of Parasitology, Bet Dagan, 5025001, Israel
| | - Adi Behar
- Kimron Veterinary Institute, Division of Parasitology, Bet Dagan, 5025001, Israel
| | - Tobia Pretto
- Pretto, Tobia, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Tomáš Scholz
- Scholz, Tomáš, Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, České Budějovice, Czech Republic
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Piou V, Vilarem C, Blanchard S, Strub JM, Bertile F, Bocquet M, Arafah K, Bulet P, Vétillard A. Honey Bee Larval Hemolymph as a Source of Key Nutrients and Proteins Offers a Promising Medium for Varroa destructor Artificial Rearing. Int J Mol Sci 2023; 24:12443. [PMID: 37569818 PMCID: PMC10419257 DOI: 10.3390/ijms241512443] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 07/28/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Varroa destructor, a major ectoparasite of the Western honey bee Apis mellifera, is a widespread pest that damages colonies in the Northern Hemisphere. Throughout their lifecycle, V. destructor females feed on almost every developmental stage of their host, from the last larval instar to the adult. The parasite is thought to feed on hemolymph and fat body, although its exact diet and nutritional requirements are poorly known. Using artificial Parafilm™ dummies, we explored the nutrition of V. destructor females and assessed their survival when fed on hemolymph from bee larvae, pupae, or adults. We compared the results with mites fed on synthetic solutions or filtered larval hemolymph. The results showed that the parasites could survive for several days or weeks on different diets. Bee larval hemolymph yielded the highest survival rates, and filtered larval plasma was sufficient to maintain the mites for 14 days or more. This cell-free solution therefore theoretically contains all the necessary nutrients for mite survival. Because some bee proteins are known to be hijacked without being digested by the parasite, we decided to run a proteomic analysis of larval honey bee plasma to highlight the most common proteins in our samples. A list of 54 proteins was compiled, including several energy metabolism proteins such as Vitellogenin, Hexamerin, or Transferrins. These molecules represent key nutrient candidates that could be crucial for V. destructor survival.
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Affiliation(s)
- Vincent Piou
- Laboratoire Evolution et Diversité Biologique, UMR5174, CNRS-Université de Toulouse III-IRD—Université Paul Sabatier, 31077 Toulouse, France; (V.P.); (S.B.)
| | - Caroline Vilarem
- Laboratoire Evolution et Diversité Biologique, UMR5174, CNRS-Université de Toulouse III-IRD—Université Paul Sabatier, 31077 Toulouse, France; (V.P.); (S.B.)
- M2i Biocontrol–Entreprise SAS, 46140 Parnac, France
| | - Solène Blanchard
- Laboratoire Evolution et Diversité Biologique, UMR5174, CNRS-Université de Toulouse III-IRD—Université Paul Sabatier, 31077 Toulouse, France; (V.P.); (S.B.)
| | - Jean-Marc Strub
- Laboratoire de Spectrométrie de Masse Bio-Organique, Département des Sciences Analytiques, Institut Pluridisciplinaire Hubert Curien, UMR 7178 (CNRS-UdS), 67037 Strasbourg, France (F.B.)
| | - Fabrice Bertile
- Laboratoire de Spectrométrie de Masse Bio-Organique, Département des Sciences Analytiques, Institut Pluridisciplinaire Hubert Curien, UMR 7178 (CNRS-UdS), 67037 Strasbourg, France (F.B.)
| | | | - Karim Arafah
- Plateforme BioPark d’Archamps, 74160 Archamps, France
| | - Philippe Bulet
- Plateforme BioPark d’Archamps, 74160 Archamps, France
- Institute pour l’Avancée des Biosciences, CR Université Grenoble Alpes, Inserm U1209, CNRS UMR 5309, 38000 Grenoble, France
| | - Angélique Vétillard
- Laboratoire Evolution et Diversité Biologique, UMR5174, CNRS-Université de Toulouse III-IRD—Université Paul Sabatier, 31077 Toulouse, France; (V.P.); (S.B.)
- Conservatoire National des Arts et Métiers (CNAM), Unité Métabiot, 22440 Ploufragan, France
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10
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Zalewski A, Virtanen JME, Zalewska H, Sironen T, Kołodziej-Sobocińska M. Asymptomatic viral infection is associated with lower host reproductive output in wild mink populations. Sci Rep 2023; 13:9390. [PMID: 37296209 PMCID: PMC10251326 DOI: 10.1038/s41598-023-36581-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/06/2023] [Indexed: 06/12/2023] Open
Abstract
Many endemic viruses circulate in populations without hosts showing visible signs of disease, while still having the potential to alter host survival or reproduction. Aleutian Mink Disease Virus (AMDV) circulates in many American mink (Neogale vison) populations in its native and introduced ranges. In this study, we analysed how AMDV infection in female American mink affects the reproduction of a feral population. Females infected with AMDV delivered significantly smaller litters (5.8 pups) than uninfected females (6.3 pups), meaning their litter size was reduced by 8%. Larger females and yearling females had larger litters than smaller and older females. There were no significant differences in whole litter survival between infected and uninfected females; however, offspring survival until September or October within litters of infected females was 14% lower than that within those of uninfected females. This negative link between infection and reproductive output means that Aleutian disease could seriously affect the wild mink population. This study increases our understanding of the threats posed by the spread of viruses to wildlife from farm animals or humans, highlighting that viruses circulating in wildlife, even in the absence of clinical manifestation, can be important drivers of population dynamics in wildlife.
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Affiliation(s)
- Andrzej Zalewski
- Mammal Research Institute, Polish Academy of Sciences, 17-230, Białowieża, Poland.
| | - Jenni M E Virtanen
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin Katu 2, 00790, Helsinki, Finland
- Department of Virology, Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00290, Helsinki, Finland
| | - Hanna Zalewska
- Mammal Research Institute, Polish Academy of Sciences, 17-230, Białowieża, Poland
| | - Tarja Sironen
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin Katu 2, 00790, Helsinki, Finland
- Department of Virology, Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, 00290, Helsinki, Finland
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11
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Quinn EA, Malkin SH, Thomas JE, Rowley AF, Coates CJ. Histopathological survey of putative parasites and pathogens in non-native slipper limpets Crepidula fornicata. DISEASES OF AQUATIC ORGANISMS 2023; 153:69-79. [PMID: 36861899 DOI: 10.3354/dao03722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Two populations of the invasive slipper limpet Crepidula fornicata were sampled in Swansea Bay and Milford Haven, Wales, UK, to determine the presence of putative pathogens and parasites known to affect co-located commercially important shellfish (e.g. oysters). A multi-resource screen, including molecular and histological diagnoses, was used to assess 1800 individuals over 12 mo for microparasites, notably haplosporidians, microsporidians and paramyxids. Although initial PCR-based methods suggested the presence of these microparasites, there was no evidence of infection when assessed histologically, or when all PCR amplicons (n = 294) were sequenced. Whole tissue histology of 305 individuals revealed turbellarians in the lumen of the alimentary canal, in addition to unusual cells of unknown origin in the epithelial lining. In total, 6% of C. fornicata screened histologically harboured turbellarians, and approximately 33% contained the abnormal cells-so named due to their altered cytoplasm and condensed chromatin. A small number of limpets (~1%) also had pathologies in the digestive gland including tubule necrosis, haemocytic infiltration and sloughed cells in the tubule lumen. Overall, these data suggest that C. fornicata are not susceptible to substantive infections by microparasites outside of their native range, which may contribute in part to their invasion success.
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Affiliation(s)
- Emma A Quinn
- Department of Biosciences, Faculty of Science and Engineering, Swansea University, Swansea SA2 8PP, UK
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12
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Sarabeev V, Balbuena J, Jarosiewicz A, Voronova N, Sueiro R, Leiro J, Ovcharenko M. Disentangling the determinants of symbiotic species richness in native and invasive gammarids (Crustacea, Amphipoda) of the Baltic region. Int J Parasitol 2023; 53:305-316. [PMID: 37004736 DOI: 10.1016/j.ijpara.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 02/04/2023] [Accepted: 02/21/2023] [Indexed: 04/03/2023]
Abstract
Dispersal of alien species is a global problem threatening native biodiversity. Co-introduction of non-native parasites and pathogens adds to the severity of this threat, but this indirect impact has received less attention. To shed light on the key factors determining the richness of microorganisms in native and invasive host species, we compared symbiotic (parasitic and epibiotic) communities of gammarids across different habitats and localities along the Baltic coast of Poland. Seven gammarid species, two native and five invasive, were sampled from 16 freshwater and brackish localities. Sixty symbiotic species of microorganisms of nine phyla were identified. This taxonomically diverse species assemblage of symbionts allowed us to assess the effect of host translocation and regional ecological determinants driving assembly richness in the gammarid hosts. Our results revealed that (i) the current assemblages of symbionts of gammarid hosts in the Baltic region are formed by native and co-introduced species; (ii) species richness of the symbiotic community was higher in the native Gammarus pulex than in the invasive hosts, probably reflecting a process of species loss by invasive gammarids in the new area and the distinct habitat conditions occupied by G. pulex and invasive hosts; (iii) both host species and locality were key drivers shaping assembly composition of symbionts, whereas habitat condition (freshwater versus brackish) was a stronger determinant of communities than geographic distance; (iv) the dispersion patterns of the individual species richness of symbiotic communities were best described by Poisson distributions; in the case of an invasive host, the dispersion of the rich species diversity may switch to a right-skewed negative binomial distribution, suggesting a host-mediated regulation process. We believe this is the first analysis of the symbiotic species richness in native and invasive gammarid hosts in European waters based on original field data and a broad range of taxonomic groups including Microsporidia, Choanozoa, Ciliophora, Apicomplexa, Platyhelminthes, Nematoda, Nematomorha, Acanthocephala and Rotifera, to document the patterns of species composition and distribution.
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13
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Ondračková M, Tkachenko MY, Bartáková V, Bryjová A, Janáč M, Zięba G, Pyrzanowski K, Kvach Y. Population genetic structure, parasite infection and somatic condition of pumpkinseed Lepomis gibbosus (Actinopterygii: Centrarchidae) in the Oder river basin. JOURNAL OF FISH BIOLOGY 2023; 102:426-442. [PMID: 36403984 DOI: 10.1111/jfb.15273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
In Poland, distribution of non-native pumpkinseed Lepomis gibbosus (Centrarchidae) is strictly limited to the Oder river basin, where it was introduced in the early 20th century. Recently, several populations have been found in waterbodies adjacent to the Oder, particularly in its lower reaches. In this study, we compare the genetic relatedness of populations in the Oder basin with other European populations using nuclear (microsatellite) and mitochondrial (partial cytochrome c oxidase subunit I; cox1) markers. Microsatellite analysis indicated that four populations in the lower Oder form a separate cluster, while one in the middle Oder clustered with Danubian populations, from where probably having been introduced. Microsatellite data suggested that the lower Oder populations differ from other non-native European populations, making it impossible to estimate the source of introduction. Nevertheless, analysis of cox1 indicated that Oder pumpkinseeds belong to the same haplotype as the vast majority of European populations. Parasitological examination confirmed the presence of two North American species, the monogenean Onchocleidus dispar and trematode Posthodiplostomum centrarchi, in the lower Oder, both previously unknown in the region. Fifteen other parasite species were acquired, including glochidia of invasive Sinanodonta woodiana. In the middle Oder, parasite infection was more limited. Fish from the Gryfino Canal, considered one of the most invasive populations in Europe, showed the highest parasite abundance and diversity, and the highest somatic condition and growth rate due to warm water released from the Dolna Odra power plant. Our results highlight significant differences in somatic condition and parasite infection in long-established non-native pumpkinseed populations in the same river system, reflecting mainly environmental conditions.
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Affiliation(s)
- Markéta Ondračková
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
| | - Maria Yu Tkachenko
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
| | - Veronika Bartáková
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
| | - Anna Bryjová
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
| | - Michal Janáč
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
| | - Grzegorz Zięba
- Department of Ecology and Vertebrate Zoology, University of Łódź, Łódź, Poland
| | - Kacper Pyrzanowski
- Department of Ecology and Vertebrate Zoology, University of Łódź, Łódź, Poland
| | - Yuriy Kvach
- Institute of Vertebrate Biology, Czech Academy of Sciences, Brno, Czech Republic
- Institute of Marine Biology, National Academy of Science of Ukraine, Odessa, Ukraine
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14
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Daly EZ, Chabrerie O, Massol F, Facon B, Hess MC, Tasiemski A, Grandjean F, Chauvat M, Viard F, Forey E, Folcher L, Buisson E, Boivin T, Baltora‐Rosset S, Ulmer R, Gibert P, Thiébaut G, Pantel JH, Heger T, Richardson DM, Renault D. A synthesis of biological invasion hypotheses associated with the introduction–naturalisation–invasion continuum. OIKOS 2023. [DOI: 10.1111/oik.09645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Ella Z. Daly
- Univ. of Rennes, CNRS, ECOBIO (Ecosystèmes, Biodiversité, Evolution), UMR 6553 Rennes France
| | - Olivier Chabrerie
- Univ. de Picardie Jules Verne, UMR 7058 CNRS EDYSAN Amiens Cedex 1 France
| | - Francois Massol
- Univ. Lille, CNRS, Inserm, CHU Lille, Inst. Pasteur de Lille, U1019 – UMR 9017 – CIIL – Center for Infection and Immunity of Lille Lille France
| | - Benoit Facon
- CBGP, INRAE, CIRAD, IRD, Montpellier Institut Agro, Univ. Montpellier Montpellier France
| | - Manon C.M. Hess
- Inst. Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale (IMBE), UMR: Aix Marseille Univ., Avignon Université, CNRS, IRD France
- Inst. de Recherche pour la Conservation des zones Humides Méditerranéennes Tour du Valat, Le Sambuc Arles France
| | - Aurélie Tasiemski
- Univ. Lille, CNRS, Inserm, CHU Lille, Inst. Pasteur de Lille, U1019 – UMR 9017 – CIIL – Center for Infection and Immunity of Lille Lille France
| | - Frédéric Grandjean
- Univ. de Poitiers, UMR CNRS 7267 EBI‐Ecologie et Biologie des Interactions, équipe EES Poitiers Cedex 09 France
| | | | | | - Estelle Forey
- Normandie Univ., UNIROUEN, INRAE, USC ECODIV Rouen France
| | - Laurent Folcher
- ANSES – Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du Travail, Laboratoire de la Santé des Végétaux – Unité de Nématologie Le Rheu France
| | - Elise Buisson
- Inst. Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale (IMBE), UMR: Aix Marseille Univ., Avignon Université, CNRS, IRD France
| | - Thomas Boivin
- INRAE, UR629 Écologie des Forêts Méditerranéennes, Centre de Recherche Provence‐Alpes‐Côte d'Azur Avignon France
| | | | - Romain Ulmer
- Univ. de Picardie Jules Verne, UMR 7058 CNRS EDYSAN Amiens Cedex 1 France
| | - Patricia Gibert
- UMR 5558 CNRS – Univ. Claude Bernard Lyon 1, Biométrie et Biologie Evolutive, Bât. Gregor Mendel Villeurbanne Cedex France
| | - Gabrielle Thiébaut
- Univ. of Rennes, CNRS, ECOBIO (Ecosystèmes, Biodiversité, Evolution), UMR 6553 Rennes France
| | - Jelena H. Pantel
- Ecological Modelling, Faculty of Biology, Univ. of Duisburg‐Essen Essen Germany
| | - Tina Heger
- Leibniz Inst. of Freshwater Ecology and Inland Fisheries (IGB) Berlin Germany
- Technical Univ. of Munich, Restoration Ecology Freising Germany
| | - David M. Richardson
- Centre for Invasion Biology, Dept. Botany & Zoology, Stellenbosch University Stellenbosch South Africa
- Inst. of Botany, Czech Academy of Sciences Průhonice Czech Republic
| | - David Renault
- Univ. of Rennes, CNRS, ECOBIO (Ecosystèmes, Biodiversité, Evolution), UMR 6553 Rennes France
- Inst. Universitaire de France Paris Cedex 05 France
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15
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Epidemiology and Integrative Taxonomy of Helminths of Invasive Wild Boars, Brazil. Pathogens 2023; 12:pathogens12020175. [PMID: 36839447 PMCID: PMC9963619 DOI: 10.3390/pathogens12020175] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 01/24/2023] Open
Abstract
Wild boars (Sus scrofa) are a significant invasive species in Brazil. We evaluated the helminth diversity of 96 wild boars in São Paulo state. Helminth infection descriptors were calculated, the species were identified and their 18S, 28S rDNA and internal transcribed spacer (ITS) regions were amplified for phylogenetic analyses. Ascarops strongylina, Strongyloides ransomi, Globocephalus urosubulatus, Oesophagostomum dentatum, Trichuris suis, Metastrongylus salmi, Metastrongylus pudendotecus, Ascaris suum and Stephanurus dentatus and Macracanthorhynchus hirudinaceus were identified. Globocephalus urosubulatus had the highest prevalence and mean abundance, and most animals had mixed infections with three parasite species. There was no association between parasite intensity and prevalence and host sex and body condition index (p > 0.05). Novel DNA sequences were obtained from G. urosubulatus, A. strongylina, and S. dentatus. This is the first study on the helmint diversity of non-captive wild boars in Brazil, and the first report of the occurrence of M. hirudinaceus, G. urosubulatus and S. dentatus in Brazilian wild boars. Non-captive wild boars of São Paulo State did not act as capture hosts for native helminth species but maintained their typical parasites, common to domestic pigs. They may act as parasite dispersers for low-tech subsistence pig farming and for native Tayassuidae.
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16
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Febrer-Serra M, Lassnig N, Colomar V, Picó G, Tejada S, Sureda A, Pinya S. Oxidative stress and behavioral responses of moorish geckos (Tarentola mauritanica) submitted to the presence of an introduced potential predator (Hemorrhois hippocrepis). THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 855:158864. [PMID: 36169021 DOI: 10.1016/j.scitotenv.2022.158864] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Stressful situations induce an increase in the production of reactive oxygen species (ROS) which can lead to molecular damage and alteration of cell function. The introduction of new potential predators induces physiological stress in native fauna. However, behavioral responses have been reported in preys, demonstrating an induction of the defenses against alien species. Behavioral and antioxidant enzyme responses in the moorish gecko, Tarentola mauritanica, against the invasive predator horseshoe whip snake (Hemorrhois hippocrepis) were assessed. Behavior was recorded and a tissue sample from the tail was collected after placing the gecko in a terrarium with previous absence or presence of the snake in 'Control' and 'H. hippocrepis' groups, respectively. Fifteen behavioral variables were examined, including tongue flick (TF) and locomotion patterns. Antioxidant enzyme activities -catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR)-, and the levels of reduced (GSH) and oxidized glutathione (GSSG), glutathione/glutathione disulfide ratio (GSH/GSSG) and malondialdehyde (MDA) concentrations were measured in the tissue sampled. Geckos exposed to the snake's odor showed a higher number of TF, longer amounts of time remaining motionless or moving in slow motion and they spent less time on the ground in comparison to the 'Control' group. The presence of the snake produced a significant increase in the activities of CAT, SOD and GR and a decrease in the GSH/GSSG ratio in T. mauritanica individuals exposed to the snake's scent. Thus, both behavioral responses and oxidative stress biomarkers clearly showed that T. mauritanica is able to recognize H. hippocrepis as a potential predator, despite being a recently introduced snake at the Balearic Islands.
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Affiliation(s)
- Maria Febrer-Serra
- Interdisciplinary Ecology Group, University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Balearic Islands, Spain.
| | - Nil Lassnig
- Interdisciplinary Ecology Group, University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Balearic Islands, Spain
| | - Víctor Colomar
- Consortium for the Recovery of Fauna of the Balearic Islands (COFIB), Government of the Balearic Islands, Spain
| | - Gabriela Picó
- Consortium for the Recovery of Fauna of the Balearic Islands (COFIB), Government of the Balearic Islands, Spain
| | - Silvia Tejada
- Interdisciplinary Ecology Group, University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Balearic Islands, Spain; Laboratory of Neurophysiology, Department of Biology, University of Balearic Islands, Ctra. Valldemossa, km 7.5, Ed. Guillem Colom, 07122 Palma, Balearic Islands, Spain; Research Group in Community Nutrition and Oxidative Stress, Department of Fundamental Biology and Health Sciences, University of Balearic Islands, Ctra. Valldemossa, km 7.5, Ed. Guillem Colom, 07122 Palma, Balearic Islands, Spain.
| | - Antoni Sureda
- Interdisciplinary Ecology Group, University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Balearic Islands, Spain; Research Group in Community Nutrition and Oxidative Stress, Department of Fundamental Biology and Health Sciences, University of Balearic Islands, Ctra. Valldemossa, km 7.5, Ed. Guillem Colom, 07122 Palma, Balearic Islands, Spain; CIBEROBN (Physiopathology of Obesity and Nutrition), University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Balearic Islands, Spain; Health Research Institute of Balearic Islands (IdISBa), 07120 Palma, Balearic Islands, Spain.
| | - Samuel Pinya
- Interdisciplinary Ecology Group, University of the Balearic Islands, Ctra. Valldemossa km 7.5, 07122 Palma, Balearic Islands, Spain.
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17
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Broder ED, Gallagher JH, Wikle AW, Welsh GT, Zonana DM, Firneno TJ, Tinghitella RM. A well-studied parasitoid fly of field crickets uses multiple alternative hosts in its introduced range. Evol Ecol 2023. [DOI: 10.1007/s10682-022-10225-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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18
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Giari L, Castaldelli G, Timi JT. Ecology and effects of metazoan parasites of fish in transitional waters. Parasitology 2022; 149:1829-1841. [PMID: 35946119 PMCID: PMC11010487 DOI: 10.1017/s0031182022001068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/29/2022] [Accepted: 08/02/2022] [Indexed: 12/29/2022]
Abstract
Given the abundance, heterogeneity and ubiquity of parasitic organisms, understanding how they influence biodiversity, evolution, health and ecosystem functionality is crucial, especially currently when anthropogenic pressures are altering host–parasite balances. This review describes the features, roles and impacts of metazoan parasites of fish occurring in transitional waters (TW). These aquatic ecosystems are highly productive and widespread around the globe and represent most favourable theatres for parasitism given the availability of hosts (invertebrates, fishes and birds) and an increased probability of parasite transmission, especially of those having complex life cycles. Fascinating examples of how parasitism can influence different hierarchical levels of biological systems, from host individuals and populations to entire aquatic communities, through effects on food webs come from this kind of ecosystem. Edible fish of commercial value found in TW can harbour some parasite species, significantly reducing host health, marketability and food safety, with possible economic and public health consequences. Many TW are historically exploited by humans as sources of relevant ecosystem services, including fisheries and aquaculture, and they are highly vulnerable ecosystems. Alteration of TW can be revealed through the study of parasite communities, contributing, as bioindicators, for assessing environmental changes, health and restoration. Fish parasites can provide much information about TW, but this potential appears to be not fully exploited. More studies are necessary to quantify the ecological, economic and medical impacts fish parasites can have on these important ecosystems.
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Affiliation(s)
- Luisa Giari
- Department of Environment and Prevention Sciences, University of Ferrara, St. L. Borsari 46, 44121 Ferrara, Italy
| | - Giuseppe Castaldelli
- Department of Environment and Prevention Sciences, University of Ferrara, St. L. Borsari 46, 44121 Ferrara, Italy
| | - Juan Tomás Timi
- Laboratorio de Ictioparasitología, Facultad de Ciencias Exactas y Naturales, Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600 Mar del Plata, Argentina
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19
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Mulvey LPA, Warnock RCM, De Baets K. Where traditional extinction estimates fall flat: using novel cophylogenetic methods to estimate extinction risk in platyhelminths. Proc Biol Sci 2022; 289:20220432. [PMID: 36043279 PMCID: PMC9428535 DOI: 10.1098/rspb.2022.0432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 08/08/2022] [Indexed: 11/12/2022] Open
Abstract
Today parasites comprise a huge proportion of living biodiversity and play a major role in shaping community structure. Given their ecological significance, parasite extinctions could result in massive cascading effects across ecosystems. It is therefore crucial that we have a way of estimating their extinction risk. Attempts to do this have often relied on information about host extinction risk, without explicitly incorporating information about the parasites. However, assuming an identical risk may be misleading. Here, we apply a novel metric to estimate the cophylogenetic extinction rate, Ec, of parasites with their hosts. This metric incorporates information about the evolutionary history of parasites and hosts that can be estimated using event-based cophylogenetic methods. To explore this metric, we investigated the use of different cophylogenetic methods to inform the Ec rate, based on the analysis of polystome parasites and their anuran hosts. We show using both parsimony- and model-based approaches that different methods can have a large effect on extinction risk estimation. Further, we demonstrate that model-based approaches offer greater potential to provide insights into cophylogenetic history and extinction risk.
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Affiliation(s)
- Laura P. A. Mulvey
- GeoZentrum Nordbayern, Department of Geography and Geosciences, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Rachel C. M. Warnock
- GeoZentrum Nordbayern, Department of Geography and Geosciences, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Kenneth De Baets
- Institute of Evolutionary Biology, Faculty of Biology, Biological and Chemical Research Centre, University of Warsaw, Warsaw 00-927 Warszawa, Poland
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20
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Gao Z, Liu S, Li W. Biological control for predation invasion based on pair approximation. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2022; 19:10252-10274. [PMID: 36031993 DOI: 10.3934/mbe.2022480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Biological invasions have been paid more attention since invasive species may cause certain threats to local ecosystems. When biological control is adopted, selecting control species for effect better becomes the focus of latest studies. A food web system, with one native species, one invasive species as predator, and one introduced control species preying on both native and invasive species, is established based on pair approximation, in which the spatial landscape of biological invasion and control is concerned, and the local and global dispersal strategies of invasive species, in addition to the predation preferences of control species for native and invasive species, are considered. The influence of the initial density and initial spatial structures of the control species is investigated and the effects of control species releasing time are analyzed. Generally, the earlier the species introduction, the better the control effect, especially for invasive species dispersing globally. Interestingly, too low control species predation preference for native species can lead to unsuccessful introduction, while too much predation preference will have a weak control effect. The larger the control species predatory preference for invasive species is, the more conducive it is to biological control. The extinction of the invasive species is closely related to the initial density and concentration of the control species. This study gives some insights on selecting control species, its appropriate releasing time, and the density and spatial aggregation of it. Some real-life examples are elaborated on, which provides references for biological invasion control.
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Affiliation(s)
- Zhiyin Gao
- School of Mathematics and Statistics, Lanzhou University, Lanzhou 730000, China
| | - Sen Liu
- School of Mathematics and Statistics, Lanzhou University, Lanzhou 730000, China
| | - Weide Li
- School of Mathematics and Statistics, Lanzhou University, Lanzhou 730000, China
- Center of Applied Mathematics of Gansu, Lanzhou 730000, China
- Center for Data Science, Laboratory of Applied Mathematics and Complex System, Lanzhou University, Lanzhou 730000, China
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21
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Miranda Paez A, Chalkowski K, Zohdy S, Willoughby JR. Management of avian malaria in populations of high conservation concern. Parasit Vectors 2022; 15:208. [PMID: 35705963 PMCID: PMC9199230 DOI: 10.1186/s13071-022-05327-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 05/18/2022] [Indexed: 12/04/2022] Open
Abstract
Avian malaria is a vector-borne disease that is caused by Plasmodium parasites. These parasites are transmitted via mosquito bites and can cause sickness or death in a wide variety of birds, including many threatened and endangered species. This Primer first provides contextual background for the avian malaria system including the life cycle, geographic distribution and spread. Then, we focus on recent advances in understanding avian malaria ecology, including how avian malaria can lead to large ecosystem changes and variation in host immune responses to Plasmodium infection. Finally, we review advances in avian malaria management in vulnerable bird populations including genetic modification methods suitable for limiting the effects of this disease in wild populations and the use of sterile insect techniques to reduce vector abundance.
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Affiliation(s)
- Andrea Miranda Paez
- College of Forestry, Wildlife and Environment, Auburn University, Auburn, AL, USA.
| | - Kayleigh Chalkowski
- College of Forestry, Wildlife and Environment, Auburn University, Auburn, AL, USA
| | - Sarah Zohdy
- College of Forestry, Wildlife and Environment and College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Janna R Willoughby
- College of Forestry, Wildlife and Environment, Auburn University, Auburn, AL, USA
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22
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Parasites of Selected Freshwater Snails in the Eastern Murray Darling Basin, Australia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127236. [PMID: 35742485 PMCID: PMC9223292 DOI: 10.3390/ijerph19127236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 02/04/2023]
Abstract
Aquatic snails serve an important role in the ecosystem. They also play an essential role in the life cycle of many parasites as hosts and may pose risks to animal and human health. In Australia, the role of snails in the transmission of parasites of livestock is well studied. However, despite the country’s unique biodiversity and wildlife, little is known about the role of snails in the transmission and survival of parasites in other ecosystems, including aquatic and aquaculture systems. This study aimed to determine the occurrence of parasites in freshwater snails in the eastern Murray Darling Basin. A total of 275 snails were collected from various localities, including aquaculture fishery ponds and natural creeks during the summer and autumn months in the southern hemisphere. Three different species of freshwater snails, all common to the area, were found, including Bullastra lessoni (n = 11), Isidorella hainesii (n = 157), and Haitia acuta (n = 107), of which 9.1%, 1.3%, and 4.7%, respectively, were found to be harboring various developmental stages of Trematoda. No other parasite was found in the examined snails. Parasites were identified as Choanocotyle hobbsi, Plagiorchis sp. and Petasiger sp. based on the sequences of their ITS2, 18S, and 28S ribosomal DNA region. Herein, we report a native parasite Choanocotyle hobbsi in an introduced snail, Haitia acuta, from both natural and aquaculture ponds. As there are no genetic sequences for adult specimens of Petasiger spp. and Plagiorchis spp. collected in Australia for comparison, whether the specimens collected in this study are the larval stage of one of the previously described species or are a new, undescribed species cannot yet be determined. Our results also suggest snails collected from aquaculture ponds may be infected with considerably more parasites.
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Adnan M, Islam W, Gang L, Chen HYH. Advanced research tools for fungal diversity and its impact on forest ecosystem. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:45044-45062. [PMID: 35460003 DOI: 10.1007/s11356-022-20317-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Fungi are dominant ecological participants in the forest ecosystems, which play a major role in recycling organic matter and channeling nutrients across trophic levels. Fungal populations are shaped by plant communities and environmental parameters, and in turn, fungal communities also impact the forest ecosystem through intrinsic participation of different fungal guilds. Mycorrhizal fungi result in conservation and stability of forest ecosystem, while pathogenic fungi can bring change in forest ecosystem, by replacing the dominant plant species with new or exotic plant species. Saprotrophic fungi, being ecological regulators in the forest ecosystem, convert dead tree logs into reusable constituents and complete the ecological cycles of nitrogen and carbon. However, fungal communities have not been studied in-depth with respect to functional, spatiotemporal, or environmental parameters. Previously, fungal diversity and its role in shaping the forest ecosystem were studied by traditional and laborious cultural methods, which were unable to achieve real-time results and draw a conclusive picture of fungal communities. This review highlights the latest advances in biological methods such as next-generation sequencing and meta'omics for observing fungal diversity in the forest ecosystem, the role of different fungal groups in shaping forest ecosystem, forest productivity, and nutrient cycling at global scales.
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Affiliation(s)
- Muhammad Adnan
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518060, China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Waqar Islam
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liu Gang
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Han Y H Chen
- Faculty of Forestry and the Forest Environment, Lakehead University, 955 Oliver Rd, Thunder Bay, ON, P7B 5E1, Canada.
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Sarabeev V, Balbuena JA, Desdevises Y, Morand S. Host-parasite relationships in invasive species: macroecological framework. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02821-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Boyd BM, Nguyen NP, Allen JM, Waterhouse RM, Vo KB, Sweet AD, Clayton DH, Bush SE, Shapiro MD, Johnson KP. Long-distance dispersal of pigeons and doves generated new ecological opportunities for host-switching and adaptive radiation by their parasites. Proc Biol Sci 2022; 289:20220042. [PMID: 35259992 PMCID: PMC8905168 DOI: 10.1098/rspb.2022.0042] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Adaptive radiation is an important mechanism of organismal diversification and can be triggered by new ecological opportunities. Although poorly studied in this regard, parasites are an ideal group in which to study adaptive radiations because of their close associations with host species. Both experimental and comparative studies suggest that the ectoparasitic wing lice of pigeons and doves have adaptively radiated, leading to differences in body size and overall coloration. Here, we show that long-distance dispersal by dove hosts was central to parasite diversification because it provided new ecological opportunities for parasites to speciate after host-switching. We further show that among extant parasite lineages host-switching decreased over time, with cospeciation becoming the more dominant mode of parasite speciation. Taken together, our results suggest that host dispersal, followed by host-switching, provided novel ecological opportunities that facilitated adaptive radiation by parasites.
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Affiliation(s)
- Bret M Boyd
- Center for Biological Data Science, Virginia Commonwealth University, Richmond, VA, USA
| | - Nam-Phuong Nguyen
- Department of Computer Science, University of Illinois, Champaign, IL, USA
| | - Julie M Allen
- Department of Biology, University of Nevada Reno, Reno, NV, USA
| | - Robert M Waterhouse
- Department of Ecology and Evolution, University of Lausanne and Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Kyle B Vo
- Center for Biological Data Science, Virginia Commonwealth University, Richmond, VA, USA
| | - Andrew D Sweet
- Department of Biological Sciences, Arkansas State University, Jonesboro, AR, USA
| | - Dale H Clayton
- School of Biological Sciences, University of Utah, Salt Lake City, UT, USA
| | - Sarah E Bush
- School of Biological Sciences, University of Utah, Salt Lake City, UT, USA
| | - Michael D Shapiro
- School of Biological Sciences, University of Utah, Salt Lake City, UT, USA
| | - Kevin P Johnson
- Illinois Natural History Survey, Prairie Research Institute, University of Illinois, Champaign, IL, USA
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Simulated encounters with a novel competitor reveal the potential for maladaptive behavioural responses to invasive species. Biol Invasions 2021. [DOI: 10.1007/s10530-021-02690-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractDuring the early stage of biological invasions, interactions occur between native and non-native species that do not share an evolutionary history. This can result in ecological naïveté, causing native species to exhibit maladaptive behavioural responses to novel enemies, leading to negative consequences for individual fitness and ecosystem function. The behavioural response of native to non-native species during novel encounters can determine the impact of non-native species, and restrict or facilitate their establishment. In this study we simulated novel encounters between a widespread invasive fish species, the Nile tilapia (Oreochromis niloticus), and a threatened native Manyara tilapia (Oreochromis amphimelas). In the first experiment single adult O. niloticus were presented with a stimulus chamber (a transparent plastic cylinder) which was empty during control trials and contained a pair of juvenile O. amphimelas in stimulus trials. In the second experiment, the reciprocal set up was used, with pairs of juvenile O. amphimelas as the focal species and adult O. niloticus as the stimulus. Both species approached the stimulus chamber more readily during stimulus trials, a behavioural response which would increase the prevalence of interspecific interactions in situ. This included physical aggression, observed from the competitively dominant O. niloticus towards O. amphimelas. Despite an initial lack of fear shown by O. amphimelas, close inspection of the stimulus chamber often resulted in an energetically costly dart response. Under field conditions we predict that naïve native individuals may readily approach O. niloticus, increasing the likelihood of interactions and exacerbating widely reported negative outcomes.
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Diagne C, Granjon L, Tatard C, Ribas A, Ndiaye A, Kane M, Niang Y, Brouat C. Same Invasion, Different Routes: Helminth Assemblages May Favor the Invasion Success of the House Mouse in Senegal. Front Vet Sci 2021; 8:740617. [PMID: 34765665 PMCID: PMC8576305 DOI: 10.3389/fvets.2021.740617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/24/2021] [Indexed: 11/13/2022] Open
Abstract
Previous field-based studies have evidenced patterns in gastrointestinal helminth (GIH) assemblages of rodent communities that are consistent with "enemy release" and "spill-back" hypotheses, suggesting a role of parasites in the ongoing invasion success of the exotic house mouse (Mus musculus domesticus) in Senegal (West Africa). However, these findings came from a single invasion route, thus preventing to ascertain that they did not result from stochastic and/or selective processes that could differ across invasion pathways. In the present study, we investigated the distribution of rodent communities and their GIH assemblages in three distinct zones of Northern Senegal, which corresponded to independent house mouse invasion fronts. Our findings first showed an unexpectedly rapid spread of the house mouse, which reached even remote areas where native species would have been expected to dominate the rodent communities. They also strengthened previous insights suggesting a role of helminths in the invasion success of the house mouse, such as: (i) low infestation rates of invading mice by the exotic nematode Aspiculuris tetraptera at invasion fronts-except in a single zone where the establishment of the house mouse could be older than initially thought, which was consistent with the "enemy release" hypothesis; and (ii) higher infection rates by the local cestode Mathevotaenia symmetrica in native rodents with long co-existence history with invasive mice, bringing support to the "spill-back" hypothesis. Therefore, "enemy release" and "spill-back" mechanisms should be seriously considered when explaining the invasion success of the house mouse-provided further experimental works demonstrate that involved GIHs affect rodent fitness or exert selective pressures. Next steps should also include evolutionary, immunological, and behavioral perspectives to fully capture the complexity, causes and consequences of GIH variations along these invasion routes.
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Affiliation(s)
- Christophe Diagne
- CBGP, IRD, CIRAD, INRAE, Montpellier SupAgro, Univ. Montpellier, Montferrier-sur-Lez, France.,Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique Evolution, Orsay, France
| | - Laurent Granjon
- CBGP, IRD, CIRAD, INRAE, Montpellier SupAgro, Univ. Montpellier, Montferrier-sur-Lez, France
| | - Caroline Tatard
- CBGP, IRD, CIRAD, INRAE, Montpellier SupAgro, Univ. Montpellier, Montferrier-sur-Lez, France
| | - Alexis Ribas
- Parasitology Section, Department of Biology, Health Care and Environment, Faculty of Pharmacy and Food Science, Institut de Recerca de la Biodiversitat (IRBio), University of Barcelona, Barcelona, Spain
| | - Arame Ndiaye
- BIOPASS, CBGP-IRD, ISRA, UCAD, CIRAD, Campus de Bel-Air, Dakar, Senegal
| | - Mamadou Kane
- BIOPASS, CBGP-IRD, ISRA, UCAD, CIRAD, Campus de Bel-Air, Dakar, Senegal
| | - Youssoupha Niang
- BIOPASS, CBGP-IRD, ISRA, UCAD, CIRAD, Campus de Bel-Air, Dakar, Senegal
| | - Carine Brouat
- CBGP, IRD, CIRAD, INRAE, Montpellier SupAgro, Univ. Montpellier, Montferrier-sur-Lez, France
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Vostinar AE, Skocelas KG, Lalejini A, Zaman L. Symbiosis in Digital Evolution: Past, Present, and Future. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.739047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Symbiosis, the living together of unlike organisms as symbionts, is ubiquitous in the natural world. Symbioses occur within and across all scales of life, from microbial to macro-faunal systems. Further, the interactions between symbionts are multimodal in both strength and type, can span from parasitic to mutualistic within one partnership, and persist over generations. Studying the ecological and evolutionary dynamics of symbiosis in natural or laboratory systems poses a wide range of challenges, including the long time scales at which symbioses evolve de novo, the limited capacity to experimentally control symbiotic interactions, the weak resolution at which we can quantify interactions, and the idiosyncrasies of current model systems. These issues are especially challenging when seeking to understand the ecological effects and evolutionary pressures on and of a symbiosis, such as how a symbiosis may shift between parasitic and mutualistic modes and how that shift impacts the dynamics of the partner population. In digital evolution, populations of computational organisms compete, mutate, and evolve in a virtual environment. Digital evolution features perfect data tracking and allows for experimental manipulations that are impractical or impossible in natural systems. Furthermore, modern computational power allows experimenters to observe thousands of generations of evolution in minutes (as opposed to several months or years), which greatly expands the range of possible studies. As such, digital evolution is poised to become a keystone technique in our methodological repertoire for studying the ecological and evolutionary dynamics of symbioses. Here, we review how digital evolution has been used to study symbiosis, and we propose a series of open questions that digital evolution is well-positioned to answer.
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Llaberia-Robledillo M, Balbuena JA, Sarabeev V, Llopis-Belenguer C. Changes in native and introduced host–parasite networks. Biol Invasions 2021. [DOI: 10.1007/s10530-021-02657-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AbstractIntroduced species can alter the dynamics and structure of a native community. Network analysis provides a tool to study host–parasite interactions that can help to predict the possible impact of biological invasions or other disturbances. In this study, we used weighted bipartite networks to assess differences in the interaction patterns between hosts and helminth parasites of native (Sea of Japan) and invasive (Black Sea and Sea of Azov) populations of Planiliza haematocheilus (Teleostei: Mugilidae). We employed three quantitative network descriptors, connectance, weighted nestedness and modularity, to gain insight into the structure of the host–parasite networks in the native and invaded areas. The role of parasite species in the networks was assessed using the betweenness centrality index. We analyzed networks encompassing the whole helminth community and subsets of species classified by their transmission strategy. The analyses were downscaled to host individual-level to consider intraspecific variation in parasite communities. We found significant differences between networks in the native and invaded areas. The latter presented a higher value of nestedness, which may indicate a co-occurrence between parasite species with many connections in the network and species with fewer interactions within the same individual-host. In addition, modularity was higher in the native area’s networks than those of the invaded area, with subgroups of host individuals that interact more frequently with certain parasite species than with others. Only the networks composed of actively transmitted parasites and ectoparasites did not show significant differences in modularity between the Sea of Azov and the Sea of Japan, which could be due to the introduction of a part of the native community into the invaded environment, with a lower diversity and abundance of species. We show that network analysis provides a valuable tool to illuminate the changes that occur in host–parasite interactions when an invasive species and its parasite community are introduced into a new area.
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Wilson AG, Wilson S, Alavi N, Lapen DR. Human density is associated with the increased prevalence of a generalist zoonotic parasite in mammalian wildlife. Proc Biol Sci 2021; 288:20211724. [PMID: 34666519 PMCID: PMC8527198 DOI: 10.1098/rspb.2021.1724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 09/23/2021] [Indexed: 01/24/2023] Open
Abstract
Macroecological approaches can provide valuable insight into the epidemiology of globally distributed, multi-host pathogens. Toxoplasma gondii is a zoonotic protozoan that infects any warm-blooded animal, including humans, in almost every ecosystem worldwide. There is substantial geographical variation in T. gondii prevalence in wildlife populations and the mechanisms driving this variation are poorly understood. We implemented Bayesian phylogenetic mixed models to determine the association between species' ecology, phylogeny and climatic and anthropogenic factors on T. gondii prevalence. Toxoplasma gondii prevalence data were compiled for free-ranging wild mammal species from 202 published studies, encompassing 45 079 individuals from 54 taxonomic families and 238 species. We found that T. gondii prevalence was positively associated with human population density and warmer temperatures at the sampling location. Terrestrial species had a lower overall prevalence, but there were no consistent patterns between trophic level and prevalence. The relationship between human density and T. gondii prevalence is probably mediated by higher domestic cat abundance and landscape degradation leading to increased environmental oocyst contamination. Landscape restoration and limiting free-roaming in domestic cats could synergistically increase the resiliency of wildlife populations and reduce wildlife and human infection risks from one of the world's most common parasitic infections.
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Affiliation(s)
- Amy G. Wilson
- Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
- Canadian Wildlife Health Cooperative, Abbotsford, British Columbia, Canada V3G 2M3
| | - Scott Wilson
- Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
- Environment and Climate Change Canada, Delta, British Columbia, Canada V4 K 3N2 0H3
| | - Niloofar Alavi
- Environment and Climate Change Canada, Ottawa, Ontario, Canada K1S 5B6
| | - David R. Lapen
- Ottawa Research Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada K1A 0C6
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Foster R, Peeler E, Bojko J, Clark PF, Morritt D, Roy HE, Stebbing P, Tidbury HJ, Wood LE, Bass D. Pathogens co-transported with invasive non-native aquatic species: implications for risk analysis and legislation. NEOBIOTA 2021. [DOI: 10.3897/neobiota..71358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Invasive Non-Native Species (INNS) can co-transport externally and internally other organisms including viruses, bacteria and other eukaryotes (including metazoan parasites), collectively referred to as the symbiome. These symbiotic organisms include pathogens, a small minority of which are subject to surveillance and regulatory control, but most of which are currently unscrutinized and/or unknown. These putatively pathogenetic symbionts can potentially pose diverse risks to other species, with implications for increased epidemiological risk to agriculture and aquaculture, wildlife/ecosystems, and human health (zoonotic diseases). The risks and impacts arising from co-transported known pathogens and other symbionts of unknown pathogenic virulence, remain largely unexplored, unlegislated, and difficult to identify and quantify. Here, we propose a workflow using PubMed and Google Scholar to systematically search existing literature to determine any known and potential pathogens of aquatic INNS. This workflow acts as a prerequisite for assessing the nature and risk posed by co-transported pathogens of INNS; of which a better understanding is necessary to inform policy and INNS risk assessments. Addressing this evidence gap will be instrumental to devise an appropriate set of statutory responsibilities with respect to these symbionts, and to underpin new and more effective legislative processes relating to the disease screening and risk assessment of INNS.
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32
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Foster R, Peeler E, Bojko J, Clark PF, Morritt D, Roy HE, Stebbing P, Tidbury HJ, Wood LE, Bass D. Pathogens co-transported with invasive non-native aquatic species: implications for risk analysis and legislation. NEOBIOTA 2021. [DOI: 10.3897/neobiota.69.71358] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Invasive Non-Native Species (INNS) can co-transport externally and internally other organisms including viruses, bacteria and other eukaryotes (including metazoan parasites), collectively referred to as the symbiome. These symbiotic organisms include pathogens, a small minority of which are subject to surveillance and regulatory control, but most of which are currently unscrutinized and/or unknown. These putatively pathogenetic symbionts can potentially pose diverse risks to other species, with implications for increased epidemiological risk to agriculture and aquaculture, wildlife/ecosystems, and human health (zoonotic diseases). The risks and impacts arising from co-transported known pathogens and other symbionts of unknown pathogenic virulence, remain largely unexplored, unlegislated, and difficult to identify and quantify. Here, we propose a workflow using PubMed and Google Scholar to systematically search existing literature to determine any known and potential pathogens of aquatic INNS. This workflow acts as a prerequisite for assessing the nature and risk posed by co-transported pathogens of INNS; of which a better understanding is necessary to inform policy and INNS risk assessments. Addressing this evidence gap will be instrumental to devise an appropriate set of statutory responsibilities with respect to these symbionts, and to underpin new and more effective legislative processes relating to the disease screening and risk assessment of INNS.
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Kobak J, Rachalewski M, Bącela-Spychalska K. What doesn’t kill you doesn’t make you stronger: Parasites modify interference competition between two invasive amphipods. NEOBIOTA 2021. [DOI: 10.3897/neobiota.69.73734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We used a freshwater amphipod-microsporidian model (Ponto-Caspian hosts: Dikerogammarus villosus and D. haemobaphes, parasite: Cucumispora dikerogammari) to check whether parasites affect biological invasions by modulating behaviour and intra- and interspecific interactions between the invaders. We tested competition for shelter in conspecific and heterospecific male pairs (one or both individuals infected or non-infected). In general, amphipods of both species increased their shelter occupancy time when accompanied by infected rather than non-infected conspecifics and heterospecifics. Infected amphipods faced lower aggression from non-infected conspecifics. Moreover, D. villosus was more aggressive than D. haemobaphes and more aggressive towards conspecifics vs. heterospecifics. In summary, infection reduced the intra- and interspecific competitivity of amphipods, which became less capable of defending their shelters, despite their unchanged need for shelter occupancy. Dikerogammarus haemobaphes, commonly considered as a weaker competitor, displaced by D. villosus from co-occupied locations, was able to compete efficiently for the shelter with D. villosus when microsporidian infections appeared on the scene. This suggests that parasites may be important mediators of biological invasions, facilitating the existence of large intra- and interspecific assemblages of invasive alien amphipods.
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Sweeny AR, Albery GF, Becker DJ, Eskew EA, Carlson CJ. Synzootics. J Anim Ecol 2021; 90:2744-2754. [PMID: 34546566 DOI: 10.1111/1365-2656.13595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 09/14/2021] [Indexed: 12/30/2022]
Abstract
Ecologists increasingly recognise coinfection as an important component of emergent epidemiological patterns, connecting aspects of ecoimmunology, behaviour, ecosystem function and even extinction risk. Building on syndemic theory in medical anthropology, we propose the term 'synzootics' to describe co-occurring enzootic or epizootic processes that produce worse health outcomes in wild animals. Using framing from syndemic theory, we describe how the synzootic concept offers new insights into the ecology and evolution of infectious diseases. We then recommend a set of empirical criteria and lines of evidence that can be used to identify synzootics in nature. We conclude by exploring how synzootics could indirectly drive the emergence of novel pathogens in human populations.
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Affiliation(s)
- Amy R Sweeny
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Gregory F Albery
- Department of Biology, Georgetown University, Washington, District of Columbia, USA
| | - Daniel J Becker
- Department of Biology, University of Oklahoma, Norman, Oklahoma, USA
| | - Evan A Eskew
- Department of Biology, Pacific Lutheran University, Tacoma, Washington, USA
| | - Colin J Carlson
- Center for Global Health Science and Security, Georgetown University Medical Center, Georgetown University, Washington, District of Columbia, USA
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McManus A, Holland CV, Henttonen H, Stuart P. The Invasive Bank Vole ( Myodes glareolus): A Model System for Studying Parasites and Ecoimmunology during a Biological Invasion. Animals (Basel) 2021; 11:2529. [PMID: 34573495 PMCID: PMC8464959 DOI: 10.3390/ani11092529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 12/16/2022] Open
Abstract
The primary driver of the observed increase in emerging infectious diseases (EIDs) has been identified as human interaction with wildlife and this increase has emphasized knowledge gaps in wildlife pathogens dynamics. Wild rodent models have proven excellent for studying changes in parasite communities and have been a particular focus of eco-immunological research. Helminth species have been shown to be one of the factors regulating rodent abundance and indirectly affect disease burden through trade-offs between immune pathways. The Myodes glareolus invasion in Ireland is a unique model system to explore the invasion dynamics of helminth species. Studies of the invasive population of M. glareolus in Ireland have revealed a verifiable introduction point and its steady spread. Helminths studies of this invasion have identified enemy release, spillover, spillback and dilution taking place. Longitudinal studies have the potential to demonstrate the interplay between helminth parasite dynamics and both immune adaptation and coinfecting microparasites as M. glareolus become established across Ireland. Using the M. glareolus invasion as a model system and other similar wildlife systems, we can begin to fill the large gap in our knowledge surrounding the area of wildlife pathogen dynamics.
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Affiliation(s)
- Andrew McManus
- Department of Biological and Pharmaceutical Sciences, Munster Technological University, Clash, V92 CX88 Tralee, Ireland;
| | - Celia V. Holland
- Department of Zoology, Trinity College Dublin, the University of Dublin, College Green, D02 PN40 Dublin, Ireland;
| | - Heikki Henttonen
- Wildlife Ecology, Natural Resources Institute Finland (Luke), FI 00790 Helsinki, Finland;
| | - Peter Stuart
- Department of Biological and Pharmaceutical Sciences, Munster Technological University, Clash, V92 CX88 Tralee, Ireland;
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Symbionts of invasive and native crabs, in Argentina: The most recently invaded area on the Southwestern Atlantic coastline. J Invertebr Pathol 2021; 184:107650. [PMID: 34352239 DOI: 10.1016/j.jip.2021.107650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 01/23/2023]
Abstract
Biological invasions have the capacity to introduce non-native parasites. This study aimed to determine whether the invasive green crab population, Carcinus spp., on the Southwestern Atlantic coast of Argentina harbours any symbionts, and whether these may spillover or spillback between native crabs, Cyrtograpsus altimanus and C. angulatus. Macroscopy, histology, and molecular analyses of some parasites were used to describe and compare their diversity across the three species of crab. We also evaluated the susceptibility of invasive Carcinus spp. to a native digenean, Maritrema madrynense, via experimental infections (exposure and cohabitation). Our results revealed that the green crab pathobiome included similar symbiotic groups to native crabs. This included putative viral, bacterial, and protozoan parasites. Haplosporidium-like observations were recorded in all crab species, and a single green crab was found to be parasitized by an Agmasoma-like microsporidium. Metagenomic analysis of one individual revealed additional symbiotic diversity (46 bacteria, 5 eukaryotic species). The green crabs were infected by more microparasite taxa than the native crabs (5:3). Wild populations of Carcinus spp. were free of metazoan parasites and are shown not to be susceptible to M. madryense under experimental conditions. Our results suggest a reduction/escape of macroparasites (trematode Maritrema madrynense; acanthocephalan Profilicollis chasmagnathi) in invasive Carcinus spp. compared to their native competitors.
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Nordberg E, Denny R, Schwarzkopf L. Testing measures of boldness and exploratory activity in native versus invasive species: geckos as a model system. Anim Behav 2021. [DOI: 10.1016/j.anbehav.2021.05.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Topalović O, Vestergård M. Can microorganisms assist the survival and parasitism of plant-parasitic nematodes? Trends Parasitol 2021; 37:947-958. [PMID: 34162521 DOI: 10.1016/j.pt.2021.05.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 12/14/2022]
Abstract
Plant-parasitic nematodes (PPNs) remain a hardly treatable problem in many crops worldwide. Low efficacy of many biocontrol agents may be due to negligence of the native microbiota that is naturally associated with nematodes in soil, and which may protect nematodes against microbial antagonists. This phenomenon is more extensively studied for other nematode parasites, so we compiled these studies and drew parallels to the existing knowledge on PPN. We describe how microbial-mediated modulation of host immune responses facilitate nematode parasitism and discuss the role of Caenorhabditis elegans-protective microbiota to get an insight into the microbial protection of PPNs in soil. Molecular mechanisms of PPN-microbial interactions are also discussed. An understanding of microbial-aided PPN performance is thus pivotal for efficient management of PPNs.
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Affiliation(s)
- Olivera Topalović
- Aarhus University, Institute for Agroecology, Faculty of Technical Sciences, Aarhus University, 4200, Slagelse, Denmark.
| | - Mette Vestergård
- Aarhus University, Institute for Agroecology, Faculty of Technical Sciences, Aarhus University, 4200, Slagelse, Denmark.
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Chalkowski K, Morgan A, Lepczyk CA, Zohdy S. Spread of An Avian Eye Fluke, Philophthalmus gralli, Through Biological Invasion of An Intermediate Host. J Parasitol 2021; 107:336-348. [PMID: 33906233 DOI: 10.1645/20-72] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Philophthalmus is a genus of globally distributed parasitic eye flukes with some members of the genus found in disparate locales. In particular, Philophthalmus gralli, a zoonotic trematode, appears to be a relatively new introduction to the Americas, facilitated by spillover from the invasive snails Melanoides tuberculata (red-rimmed melania) and Tarebia granifera (quilted melania), which were introduced via the aquarium trade, and perhaps furthered by avian dispersal. Given that two known intermediate hosts of Philophthalmus flukes are actively expanding their range as a result of human activities, we hypothesize that this spread is also associated with the spread of Philophthalmus flukes. To address this, we systematically reviewed the literature and examined whether the global expansion of P. gralli flukes is associated with the spread of invasive snails M. tuberculata and T. granifera. Here, we show that (1) specimens of P. gralli are only found in intermediate snail hosts M. tuberculata or T. granifera, suggesting intermediate host specificity for these 2 species, and (2) specimens of P. gralli have rarely been found outside the ranges (native and introduced) of M. tuberculata or T. granifera. Given the importance of distribution information of parasites in the role of identifying parasite invasions, we also review the known distribution of all Philophthalmus species. Considering recent outbreaks in humans and wild and domestic animal species, the continued spread of Philophthalmus presents a potential threat to veterinary and public health and conservation.
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Affiliation(s)
- Kayleigh Chalkowski
- School of Forestry and Wildlife Sciences, Auburn University, Auburn, Alabama 36849
| | - Abigail Morgan
- School of Forestry and Wildlife Sciences, Auburn University, Auburn, Alabama 36849
| | | | - Sarah Zohdy
- School of Forestry and Wildlife Sciences, Auburn University, Auburn, Alabama 36849.,College of Veterinary Medicine, Auburn University, Auburn, Alabama 36849
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Outa JO, Dos Santos QM, Avenant-Oldewage A, Jirsa F. Parasite diversity of introduced fish Lates niloticus, Oreochromis niloticus and endemic Haplochromis spp. of Lake Victoria, Kenya. Parasitol Res 2021; 120:1583-1592. [PMID: 33666757 DOI: 10.1007/s00436-021-07095-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 02/18/2021] [Indexed: 10/22/2022]
Abstract
This study reports on the status of metazoan fish parasites in Lake Victoria following the establishment of introduced Lates niloticus (Latidae) and Oreochromis niloticus (Cichlidae) and changes in environmental quality. For this study, 412 fish specimens were examined for parasites: 103 L. niloticus, 165 O. niloticus, 82 Haplochromis piceatus and 62 H. humilior (endemic cichlids). In total, 25 parasite taxa were identified: Lates niloticus (6), O. niloticus (19) and Haplochromis spp. (13). The myxosporean Henneguya ghaffari, prevalence (P) = 79% and the monogenean Diplectanum lacustris (P = 34%), were the dominant parasites on L. niloticus. Myxobolus sp. (P = 44%) was dominant on O. niloticus while for the haplochromines, metacercariae of 'Neascus' sp. (Diplostomidae) was dominant (P = 37%). Contrary to reports of high diversity of monogeneans on endemic species, the haplochromines harboured only Cichlidogyrus gillardinae (P = 6.9%). Oreochromis niloticus harboured seven monogenean species: Cichlidogyrus sclerosus, C. halli, C. tilapiae, C. quaestio, Scutogyrus longicornis, Gyrodactylus cichlidarum and G. malalai-they appear to have been co-introduced with the fish. Cichlidogyrus gillardinae, C. quaestio, G. malalai and the acanthocephalan Acanthogyrus (Acathosentis) tilapiae are recorded for the first time in Lake Victoria, representing new geographical records. Presence of A. (A) tilapiae in Haplochromis spp. indicates possible spillover from O. niloticus. Low prevalence and diversity of monogeneans, crustaceans and glochidia on the fish corresponded with increased pollution in the lake. Overall, changing environmental conditions and introductions of fish species have contributed to parasite community changes in Lake Victoria.
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Affiliation(s)
- James Omondi Outa
- Department of Functional and Evolutionary Ecology, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria. .,School of Biological and Physical Science, Maseno University, P.O. Box 333, Maseno, 40105, Kenya.
| | - Quinton Marco Dos Santos
- Department of Zoology, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | | | - Franz Jirsa
- Department of Zoology, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa.,Institute of Inorganic Chemistry, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
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Bolds SA, Lockaby BG, Ditchkoff SS, Smith MD, VerCauteren KC. Impacts of a large invasive mammal on water quality in riparian ecosystems. JOURNAL OF ENVIRONMENTAL QUALITY 2021; 50:441-453. [PMID: 33410506 DOI: 10.1002/jeq2.20194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
Wild pigs (Sus scrofa) are a highly invasive species in many regions of the world and can act as ecosystem engineers in areas where they are established. In riparian ecosystems, wild pigs may affect water quality parameters and introduce fecal bacteria, although previous studies have reported conflicting results. We propose four conditions that we believe are needed for an accurate assessment of wild pig impacts on water quality and address each one in our study. Water samples were collected between May 2018 and June 2019 in riparian watersheds on a privately owned property in Alabama that was densely populated by wild pigs (treatment) and in watersheds at a nearby national forest without an established population. Samples were analyzed for concentrations of water quality parameters, such as anions and cations, dissolved oxygen, total suspended solids, N, dissolved organic C, and Escherichia coli and other fecal coliforms. An additional 38 samples were analyzed using quantitative polymerase chain reaction for swine fecal bacteroidetes. At treatment watersheds, specific conductivity and concentrations of organic N and C, SO4 2- , and Ca2+ were between 2 and 11 times that of reference watersheds. Escherichia coli values at treatment watersheds were 40 times reference watershed values. DNA from swine fecal bacteroidetes was detected in 70% of treatment samples and 0% of reference samples. Wild pigs are a threat to water quality in riparian areas, and our results indicate that it may be important to control populations upstream of major drinking water sources and recreational areas.
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Affiliation(s)
- Sara A Bolds
- Auburn Univ., School of Forestry and Wildlife Sciences, 602 Duncan Drive, Auburn, AL, 36849, USA
| | - B Graeme Lockaby
- Auburn Univ., School of Forestry and Wildlife Sciences, 602 Duncan Drive, Auburn, AL, 36849, USA
| | - Stephen S Ditchkoff
- Auburn Univ., School of Forestry and Wildlife Sciences, 602 Duncan Drive, Auburn, AL, 36849, USA
| | - Mark D Smith
- Auburn Univ., School of Forestry and Wildlife Sciences, 602 Duncan Drive, Auburn, AL, 36849, USA
| | - Kurt C VerCauteren
- National Wildlife Research Center, USDA/APHIS/Wildlife Services, Fort Collins, CO, 80521, USA
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Sazmand A. Paleoparasitology and archaeoparasitology in Iran: A retrospective in differential diagnosis. INTERNATIONAL JOURNAL OF PALEOPATHOLOGY 2021; 32:50-60. [PMID: 33352520 DOI: 10.1016/j.ijpp.2020.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 11/13/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE This paper reviews paleo- and archaeoparasitology publications to date, from Iran. The primary focus is the importance of differential diagnosis and the crucial role of interdisciplinary collaborations among parasitologists and other specialists. METHODS All relevant articles and theses published in Iran through October 2020 are included and evaluated, with particular emphasis on the diagnostic process. RESULTS Archaeoparasitic studies in Iran have identified a number of parasites that provide insight into the past. Misidentification, however, due to incomplete differential diagnosis, remains an issue, as does incomplete description and problematic images. CONCLUSIONS Identification of paleoparasites to the species level must be supported with accurate morphology and morphometry. Rigorous differential diagnosis is essential. Caution must be exercised when interpreting observations of ova recovered from coprolites. In these instances, precise identification of host animals and aligning parasite ranges with host specificity is critical. The possibility of incidental parasite presence must be evaluated, including non-specificity of parasite tropisms, transport hosting, or contamination. Lastly, differential diagnosis must include consideration of intentional consumption of parasites. Thus, parasitological findings must be placed in geographical, historical, and cultural contexts. SIGNIFICANCE Archaeoparasitological research in Iran has elucidated the presence of faunal and human disease in the past and has, through this reevaluation of the published works, contributed to precise description and diagnosis of ova of roundworms, tapeworms, thorny-headed worms, and recognition of larval stages of tapeworms in recovered remains of mites.
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Affiliation(s)
- Alireza Sazmand
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, 6517658978, Hamedan, Iran.
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43
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McIntire KM, Juliano SA. Detrimental effects of a failed infection by a co-invasive parasite on a native congeneric parasite and its native host. Biol Invasions 2021; 23:1637-1648. [DOI: 10.1007/s10530-021-02464-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fox J, Jiménez A M, Stange M. Natural history study of an understudied sea catfish species from Panama (Siluriformes: Ariidae). NEOTROPICAL ICHTHYOLOGY 2021. [DOI: 10.1590/1982-0224-2020-0105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
ABSTRACT The semi-anadromous sea catfish species Cathorops tuyra (Ariidae, Besudo sea catfish) from the Tropical Eastern Pacific has been found reproductively active in the freshwater rivers and lakes of the Panama Canal. Despite growing concerns for biodiversity, reports on natural history are lacking for many Neotropical sea catfishes. We aimed to provide data on the diet and seasonal timing of spawning of C. tuyra for an autochthonous, semi-anadromous, brackish water population from Rio Santa Maria and an allochthonous freshwater non-migrating population from Rio Chagres, an affluent to the Panama Canal, to understand how changing from semi-anadromous to residential lifestyle affects the natural history of a species. Fish from both sampling sites were dissected and information on stomach content, size, weight, parasitic load, sex, maturity, and number of eggs were recorded. In Rio Chagres, there was a female bias and individuals were larger and in pre-spawning mode compared to Rio Santa Maria. Parasite prevalence was low in Rio Chagres and zero in Rio Santa Maria. The diets were very similar between populations: gastropods, bivalves, and insects were the most important prey items in both rivers representing a diverse omnivorous diet that is similar to that of other catfishes.
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Valente R, Robles MDR, Diaz JI. Gastropods as intermediate hosts of Angiostrongylus spp. in the Americas: bioecological characteristics and geographical distribution. Mem Inst Oswaldo Cruz 2020; 115:e200236. [PMID: 33263610 PMCID: PMC7693416 DOI: 10.1590/0074-02760200236] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 11/12/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Intermediate hosts are key organisms in maintaining parasite life cycles, because they can act as amplifiers in the transmission from natural reservoirs to humans. One of the most important groups of intermediate hosts for zoonotic nematode infections are gastropods,slugs and snails. These are essential organisms in the larval development of Angiostrongylus species. OBJECTIVES The objective of this paper is to review reports of Angiostrongylus spp. in naturally infected gastropods from the Americas, taking into account the diagnostic methods used in their identification, to be able to provide more accurate list of their intermediate hosts. We also discuss the factors that aid the dispersion of Angiostrongylus spp. in the Americas. METHODS This study reviews scientific publications and book sections on Angiostrongylus spp. in the Americas, including original works assessing larvae of Angiostrongylus in intermediate hosts. The eligible reports were classified accordingly to their geographical location, year of first record, and the larvae identification methodologies used. Digital repositories were used for the search. The bioecological characteristics of the main intermediate hosts are summarised. FINDINGS A total of 29 gastropod species that are naturally infected with Angiostrongylus spp. have been reported as intermediate hosts, 16 of which are land snails, two are freshwater snails, and 11 land slugs. MAIN CONCLUSIONS This study highlights the importance of integrative studies, analysing both the etiological agent and its transmission dynamic in the environment, the biological and ecological characteristics of the hosts, and the impact on host populations. It is necessary to increase interdisciplinary studies to determine the potential epidemiological health risk of angiostrongyliasis in the Americas, and thus be able to establish prevention, monitoring and contingency strategies in the region.
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Affiliation(s)
- Romina Valente
- Centro de Estudios Parasitológicos y de Vectores, Buenos Aires Province, Argentina
| | | | - Julia Inés Diaz
- Centro de Estudios Parasitológicos y de Vectores, Buenos Aires Province, Argentina
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46
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Association between temporal patterns in helminth assemblages and successful range expansion of exotic Mus musculus domesticus in Senegal. Biol Invasions 2020. [DOI: 10.1007/s10530-020-02304-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Miller MA, Kinsella JM, Snow RW, Falk BG, Reed RN, Goetz SM, Mazzotti FJ, Guyer C, Romagosa CM. Highly competent native snake hosts extend the range of an introduced parasite beyond its invasive Burmese python host. Ecosphere 2020. [DOI: 10.1002/ecs2.3153] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Melissa A. Miller
- Department of Biological Sciences Auburn University Auburn Alabama36849USA
| | | | - Ray W. Snow
- Everglades National Park National Park Service Homestead Florida33034USA
| | - Bryan G. Falk
- Fort Collins Science Center US Geological Survey Fort Collins Colorado80526USA
| | - Robert N. Reed
- Fort Collins Science Center US Geological Survey Fort Collins Colorado80526USA
| | - Scott M. Goetz
- Department of Biological Sciences Auburn University Auburn Alabama36849USA
| | - Frank J. Mazzotti
- Fort Lauderdale Research and Education Center University of Florida Davie Florida USA
| | - Craig Guyer
- Department of Biological Sciences Auburn University Auburn Alabama36849USA
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French AF, Castillo-Alcala F, Gedye KR, Roe WD, Gartrell BD. Nematode larva migrans caused by Toxocara cati in the North Island brown kiwi ( Apteryx mantelli). INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE 2020; 11:221-228. [PMID: 32181127 PMCID: PMC7066032 DOI: 10.1016/j.ijppaw.2020.02.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/19/2020] [Accepted: 02/20/2020] [Indexed: 11/12/2022]
Abstract
Sporadic cases of visceral and neural nematode larva migrans have been diagnosed at necropsy in the endangered New Zealand kiwi (Apteryx spp.), but the causative organisms have not yet been definitively identified. From an initial group of five affected kiwi, PCR was performed on DNA extracted from archival formalin-fixed paraffin-embedded tissue sections in which larval nematodes had been histologically identified. Sequencing of positive results from four out of the five kiwi aligned with sequences from Toxocara cati, a nematode parasite whose definitive host is the domestic cat. PCR was then performed on a second group of 12 kiwi that had histologic inflammatory lesions consistent with larva migrans, but variable larval presence. Repeatable positive PCR results were only achieved in one tissue, in which larval organisms were histologically confirmed. This study supports the use of PCR as an alternative or adjunct to the morphological identification of nematode larvae in formalin-fixed histopathological samples, as well as showing that in investigation of larva migrans, PCR has greatest chance of success from sections where nematode larvae are evident histologically. The identification of Toxocara cati from lesions of larva migrans in kiwi reflects an indirect, parasite-mediated effect of an invasive mammalian species on a native species. Cases of nematode larva migrans have been diagnosed in the New Zealand kiwi. PCR was performed on archival formalin-fixed paraffin-embedded tissue blocks. Results identified Toxocara cati, a parasite of cats, as the causative agent. PCR had greatest success from tissues where larvae were identifiable histologically.
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Affiliation(s)
- Adrienne F French
- School of Veterinary Science, Massey University, Private Bag 11-222, Palmerston North, New Zealand
| | - Fernanda Castillo-Alcala
- School of Veterinary Science, Massey University, Private Bag 11-222, Palmerston North, New Zealand
| | - Kristene R Gedye
- School of Veterinary Science, Massey University, Private Bag 11-222, Palmerston North, New Zealand
| | - Wendi D Roe
- School of Veterinary Science, Massey University, Private Bag 11-222, Palmerston North, New Zealand
| | - Brett D Gartrell
- School of Veterinary Science, Massey University, Private Bag 11-222, Palmerston North, New Zealand
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Abstract
Several factors influence the dynamics and structure of parasite communities. Our goal was to investigate how the community composition, prevalence and abundance of parasites change across seven populations of the exotic lizard Hemidactylus mabouia in Northeast Brazil, and to describe ontogenetic and sex variations. We found differences in the composition of component communities and patterns of infection according to the host body size across the lizard populations. We did not find any variation between the sexes regarding epidemiological patterns, which can probably be explained by the similar diet and habitat use of male and female H. mabouia. An unusually high abundance and prevalence of trematodes infecting this host lizard was apparent when we compared other native lizard hosts, and we suggest that local environmental conditions might be advantageous to the development and life cycle of these parasites due to the abundance of all the intermediate and definitive hosts.
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50
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Margos G, Fingerle V, Reynolds S. Borrelia bavariensis: Vector Switch, Niche Invasion, and Geographical Spread of a Tick-Borne Bacterial Parasite. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00401] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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