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Tizzani P, Fanelli A, Belleau E. Gastrointestinal parasites of black grouse Lyrurus tetrix: A long-term study (1986-2019) in the French Alps. Res Vet Sci 2021; 137:163-169. [PMID: 33989963 DOI: 10.1016/j.rvsc.2021.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/30/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022]
Abstract
This study investigates the gastroenteric parasites community of 336 black grouse Lyrurus tetrix, covering a wide part of the totality of the species range in the French Alps and characterized by a long-term sampling (1986-2019). Parasite community was described using common epidemiological descriptors. Additionally, for the most prevalent parasite, a species distribution model (SDM) was built to understand the main factors influencing parasite occurrence. Ascaridia compar, Capillaria caudinflata, cestodes (Raillietina urogalli, R.cesticillus, and Hymenolepis microps), Eimeria sp. (E. lyruri and E.nadsoni), Corrigia corrigia and Acanthocephalus sp. The most prevalent species was C.caudinflata (P: 33%,CI95%: 28-38), whereas the lowest prevalence was recorded for Acantocephalus sp. (P:0.3%,CI95%:-0.3-0.9).The selected SDM for C.caudinflata includes only 3 variables: BIO11 (Mean Temperature of Coldest Quarter), the latitude of sampled animals and the distance from ski tour way. The distribution of C.caudinflata in the French Alps presents sharply defined areas where there are optimal environmental conditions for maintaining the life cycle of this parasite. These are the colder areas, characterized by higher latitude values and close to the ski tour ways. This study provides a valuable contribution to the scarce literature on wild Galliformes, describing the composition of the gastrointestinal parasite community of the black grouse.
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Affiliation(s)
- Paolo Tizzani
- University of Turin, Department of Veterinary Sciences, Italy.
| | - Angela Fanelli
- University of Bari, Department of Veterinary Medicine, Italy.
| | - Eric Belleau
- Groupement de Défense Sanitaire (GDS) des Alpes de Haute Provence, France
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Fanelli A, Tizzani P, Ferroglio E, Belleau E. Cheilospirura hamulosa in the Rock Partridge (Alectoris graeca saxatilis): Epidemiological Patterns and Prediction of Parasite Distribution in France. Diversity 2020; 12:484. [DOI: 10.3390/d12120484] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The rock partridge (Alectoris graeca saxatilis) is an alpine Galliform with high conservation value. Several factors, including parasitic helminths, play a role in population dynamics, and consequently in the conservation management of wild Galliformes. The aim of this study was to assess the epidemiological characteristics of Cheilospirura hamulosa (Nematoda, Acuarioidea) in the Rock partridge population in France. Machine learning modeling algorithms were applied to identify the environmental variables influencing parasite occurrence, and to map parasite presence probability. The present work is based on a long-term sampling (1987–2019) conducted in the French Alps. C. hamulosa was found with a prevalence (P) of 39% (Confidence Interval—CI 95%: 34–43), and mean intensity of 7.7 (7.8 sd). The highest prevalence (P: 67%, CI 95%: 54–80) was detected in the period 2005–2009. Latitude was the most important variable shaping the parasite distribution, followed by altitude, annual mean temperature, temperature seasonality, and the amount of precipitation of the coldest quarter. The area suitable for parasite presence included 73% of the French Alps. This work represents the first epidemiological surveillance on C. hamulosa infection in the rock partridge. It provides evidence of a high level of infection and identifies priority areas at higher infection risk, where a close monitoring of the rock partridge populations should be carried out.
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Affiliation(s)
- Marja Isomursu
- Finnish Food Safety Authority Evira, Elektroniikkatie 3, FI-90590 Oulu, Finland
| | - Pekka Helle
- Natural Resources Institute Finland, FI-90014 University of Oulu, Finland
| | - Osmo Rätti
- University of Lapland, Arctic Centre, Pohjoisranta 4, FI-96100 Rovaniemi, Finland
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Diagne C, Ribas A, Charbonnel N, Dalecky A, Tatard C, Gauthier P, Haukisalmi V, Fossati-Gaschignard O, Bâ K, Kane M, Niang Y, Diallo M, Sow A, Piry S, Sembène M, Brouat C. Parasites and invasions: changes in gastrointestinal helminth assemblages in invasive and native rodents in Senegal. Int J Parasitol 2016; 46:857-869. [PMID: 27670366 DOI: 10.1016/j.ijpara.2016.07.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/09/2016] [Accepted: 07/20/2016] [Indexed: 10/21/2022]
Abstract
Understanding why some exotic species become widespread and abundant in their colonised range is a fundamental issue that still needs to be addressed. Among many hypotheses, newly established host populations may benefit from a parasite loss ("enemy release" hypothesis) through impoverishment of their original parasite communities or reduced infection levels. Moreover, the fitness of competing native hosts may be negatively affected by the acquisition of exotic taxa from invaders ("parasite spillover") and/or by an increased transmission risk of native parasites due to their amplification by invaders ("parasite spillback"). We focused on gastrointestinal helminth communities to determine whether these predictions could explain the ongoing invasion success of the commensal house mouse (Mus musculus domesticus) and black rat (Rattus rattus), as well as the associated decrease in native Mastomys spp., in Senegal. For both invasive species, our results were consistent with the predictions of the enemy release hypothesis. A decrease in overall gastrointestinal helminth prevalence and infracommunity species richness was observed along the invasion gradients as well as lower specific prevalence/abundance (Aspiculuris tetraptera in Mus musculus domesticus, Hymenolepis diminuta in Rattus rattus) on the invasion fronts. Conversely, we did not find strong evidence of GIH spillover or spillback in invasion fronts, where native and invasive rodents co-occurred. Further experimental research is needed to determine whether and how the loss of gastrointestinal helminths and reduced infection levels along invasion routes may result in any advantageous effects on invader fitness and competitive advantage.
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Affiliation(s)
- Christophe Diagne
- Institut de recherche pour le développement (IRD), Centre de Biologie pour la Gestion des Populations (CBGP) (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus International de Baillarguet, Montferrier-sur-Lez, France; IRD, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus ISRA/IRD de Bel Air, Dakar, Senegal; Département de Biologie Animale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD), BP 5005 Fann, Dakar, Senegal.
| | - Alexis Ribas
- Institut de recherche pour le développement (IRD), Centre de Biologie pour la Gestion des Populations (CBGP) (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus International de Baillarguet, Montferrier-sur-Lez, France; Laboratory of Parasitology, Faculty of Pharmacy, University of Barcelona, Avda Diagonal s/n, 08028 Barcelona, Spain
| | - Nathalie Charbonnel
- Inra, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus International de Baillarguet, Montferrier sur Lez, France
| | - Ambroise Dalecky
- IRD, LPED (UMR AMU / IRD), 3 place Victor Hugo, Marseille, France
| | - Caroline Tatard
- Inra, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus International de Baillarguet, Montferrier sur Lez, France
| | - Philippe Gauthier
- Institut de recherche pour le développement (IRD), Centre de Biologie pour la Gestion des Populations (CBGP) (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus International de Baillarguet, Montferrier-sur-Lez, France
| | - Voitto Haukisalmi
- Finnish Museum of Natural History Luomus, P. Rau-tatiekatu 13, 00014 University of Helsinki, Finland
| | - Odile Fossati-Gaschignard
- Institut de recherche pour le développement (IRD), Centre de Biologie pour la Gestion des Populations (CBGP) (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus International de Baillarguet, Montferrier-sur-Lez, France
| | - Khalilou Bâ
- IRD, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus ISRA/IRD de Bel Air, Dakar, Senegal
| | - Mamadou Kane
- IRD, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus ISRA/IRD de Bel Air, Dakar, Senegal
| | - Youssoupha Niang
- IRD, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus ISRA/IRD de Bel Air, Dakar, Senegal
| | - Mamoudou Diallo
- IRD, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus ISRA/IRD de Bel Air, Dakar, Senegal
| | - Aliou Sow
- IRD, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus ISRA/IRD de Bel Air, Dakar, Senegal
| | - Sylvain Piry
- Inra, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus International de Baillarguet, Montferrier sur Lez, France
| | - Mbacké Sembène
- IRD, CBGP (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus ISRA/IRD de Bel Air, Dakar, Senegal; Département de Biologie Animale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop (UCAD), BP 5005 Fann, Dakar, Senegal
| | - Carine Brouat
- Institut de recherche pour le développement (IRD), Centre de Biologie pour la Gestion des Populations (CBGP) (UMR INRA / IRD / Cirad / Montpellier SupAgro), Campus International de Baillarguet, Montferrier-sur-Lez, France
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Luong LT, Grear DA, Hudson PJ. Manipulation of host-resource dynamics impacts transmission of trophic parasites. Int J Parasitol 2014; 44:737-42. [PMID: 24929136 DOI: 10.1016/j.ijpara.2014.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/14/2014] [Accepted: 05/15/2014] [Indexed: 11/23/2022]
Abstract
Many complex life cycle parasites rely on predator-prey interactions for transmission, whereby definitive hosts become infected via the consumption of an infected intermediate host. As such, these trophic parasites are embedded in the larger community food web. We postulated that exposure to infection and, hence, parasite transmission are inherently linked to host foraging ecology, and that perturbation of the host-resource dynamic will impact parasite transmission dynamics. We employed a field manipulation experiment in which natural populations of the eastern chipmunk (Tamias striatus) were provisioned with a readily available food resource in clumped or uniform spatial distributions. Using replicated longitudinal capture-mark-recapture techniques, replicated supplemented and unsupplemented control sites were monitored before and after treatment for changes in infection levels with three gastro-intestinal helminth parasites. We predicted that definitive hosts subject to food supplementation would experience lower rates of exposure to infective intermediate hosts, presumably because they shifted their diet away from the intermediate host towards the more readily available resource (sunflower seeds). As predicted, prevalence of infection by the trophically transmitted parasite decreased in response to supplemental food treatment, but no such change in infection prevalence was detected for the two directly transmitted parasites in the system. The fact that food supplementation only had an impact on the transmission of the trophically transmitted parasite, and not the directly transmitted parasites, supports our hypothesis that host foraging ecology directly affects exposure to parasites that rely on the ingestion of intermediate hosts for transmission. We concluded that the relative availability of different food resources has important consequences for the transmission of parasites and, more specifically, parasites that are embedded in the food web. The broader implications of these findings for food web dynamics and disease ecology are discussed.
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