Can a specialist parasite species of a widespread and common host species be rare? The case of Spinitectus inermis (Nematoda: Cystidicolidae) in eels Anguilla anguilla
The claim by many authors that Spinitectus inermis (Zeder, 1800), a narrowly specific parasite of European eels Anguilla anguilla (L.), is a rare species is considered at three levels: its geographical range, its frequency of occurrence compared to other eel parasites and its relative abundance in c...
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ftczechacademysc:oai:kramerius.lib.cas.cz:uuid:db01983d-b1b0-47a1-be7a-7dae1bd22c20 2024-03-17T08:53:20+00:00 Can a specialist parasite species of a widespread and common host species be rare? The case of Spinitectus inermis (Nematoda: Cystidicolidae) in eels Anguilla anguilla Kennedy, Clive R. 131-138 média svazek https://kramerius.lib.cas.cz/view/uuid:db01983d-b1b0-47a1-be7a-7dae1bd22c20 https://doi.org/10.14411/fp.2012.018 unknown https://kramerius.lib.cas.cz/view/uuid:db01983d-b1b0-47a1-be7a-7dae1bd22c20 doi:10.14411/fp.2012.018 policy:public Spinitectus inermis eel geographical distribution abundance overdispersion rarity model:article ftczechacademysc https://doi.org/10.14411/fp.2012.018 2024-02-19T23:09:22Z The claim by many authors that Spinitectus inermis (Zeder, 1800), a narrowly specific parasite of European eels Anguilla anguilla (L.), is a rare species is considered at three levels: its geographical range, its frequency of occurrence compared to other eel parasites and its relative abundance in component communities. The parasite is widely distributed in freshwater throughout the European range of the eel but its occurrence is erratic and unpredictable, being known from only 8 countries. Surveys of eel parasites in the United Kingdom and in Continental Europe show that it is present in only 13% of British and 29% of continental localities. This satisfies one of the criteria for rarity. When present, its prevalence ranges from 1.8% to 43.3%, so it can be considered rare in some localities but in a few it may be common and on occasion it may be the dominant species in the gastro-intestinal community. Populations of S. inermis are almost always characterised by high levels of overdispersion, even at low prevalence. The species also displays an ability to colonise a locality following introduction there. Overall it meets many of the criteria of a rare species including a restricted distribution and a low frequency of occurrence and so it can be considered to exhibit diffusive rarity. Article in Journal/Newspaper Anguilla anguilla Czech Academy of Sciences: dKNAV Folia Parasitologica 59 2 131 138 |
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Open Polar |
collection |
Czech Academy of Sciences: dKNAV |
op_collection_id |
ftczechacademysc |
language |
unknown |
topic |
Spinitectus inermis eel geographical distribution abundance overdispersion rarity |
spellingShingle |
Spinitectus inermis eel geographical distribution abundance overdispersion rarity Kennedy, Clive R. Can a specialist parasite species of a widespread and common host species be rare? The case of Spinitectus inermis (Nematoda: Cystidicolidae) in eels Anguilla anguilla |
topic_facet |
Spinitectus inermis eel geographical distribution abundance overdispersion rarity |
description |
The claim by many authors that Spinitectus inermis (Zeder, 1800), a narrowly specific parasite of European eels Anguilla anguilla (L.), is a rare species is considered at three levels: its geographical range, its frequency of occurrence compared to other eel parasites and its relative abundance in component communities. The parasite is widely distributed in freshwater throughout the European range of the eel but its occurrence is erratic and unpredictable, being known from only 8 countries. Surveys of eel parasites in the United Kingdom and in Continental Europe show that it is present in only 13% of British and 29% of continental localities. This satisfies one of the criteria for rarity. When present, its prevalence ranges from 1.8% to 43.3%, so it can be considered rare in some localities but in a few it may be common and on occasion it may be the dominant species in the gastro-intestinal community. Populations of S. inermis are almost always characterised by high levels of overdispersion, even at low prevalence. The species also displays an ability to colonise a locality following introduction there. Overall it meets many of the criteria of a rare species including a restricted distribution and a low frequency of occurrence and so it can be considered to exhibit diffusive rarity. |
format |
Article in Journal/Newspaper |
author |
Kennedy, Clive R. |
author_facet |
Kennedy, Clive R. |
author_sort |
Kennedy, Clive R. |
title |
Can a specialist parasite species of a widespread and common host species be rare? The case of Spinitectus inermis (Nematoda: Cystidicolidae) in eels Anguilla anguilla |
title_short |
Can a specialist parasite species of a widespread and common host species be rare? The case of Spinitectus inermis (Nematoda: Cystidicolidae) in eels Anguilla anguilla |
title_full |
Can a specialist parasite species of a widespread and common host species be rare? The case of Spinitectus inermis (Nematoda: Cystidicolidae) in eels Anguilla anguilla |
title_fullStr |
Can a specialist parasite species of a widespread and common host species be rare? The case of Spinitectus inermis (Nematoda: Cystidicolidae) in eels Anguilla anguilla |
title_full_unstemmed |
Can a specialist parasite species of a widespread and common host species be rare? The case of Spinitectus inermis (Nematoda: Cystidicolidae) in eels Anguilla anguilla |
title_sort |
can a specialist parasite species of a widespread and common host species be rare? the case of spinitectus inermis (nematoda: cystidicolidae) in eels anguilla anguilla |
url |
https://kramerius.lib.cas.cz/view/uuid:db01983d-b1b0-47a1-be7a-7dae1bd22c20 https://doi.org/10.14411/fp.2012.018 |
op_coverage |
131-138 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
https://kramerius.lib.cas.cz/view/uuid:db01983d-b1b0-47a1-be7a-7dae1bd22c20 doi:10.14411/fp.2012.018 |
op_rights |
policy:public |
op_doi |
https://doi.org/10.14411/fp.2012.018 |
container_title |
Folia Parasitologica |
container_volume |
59 |
container_issue |
2 |
container_start_page |
131 |
op_container_end_page |
138 |
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