Abundance-prevalence relationship of gill congeneric ectoparasites: testing the core satellite hypothesis and ecological specialisation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F02%3A00007559" target="_blank" >RIV/00216224:14310/02:00007559 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Abundance-prevalence relationship of gill congeneric ectoparasites: testing the core satellite hypothesis and ecological specialisation

Popis výsledku v původním jazyce

We investigated the abundance-prevalence relationships in monogeneans belonging to the genus Dactylogyrus. A total of 182 dactylogyrid populations representing 9 species collected from the gills of roach (Rutilus rutilus). Local abundance was found to bestrongly positively correlated with prevalence. Two hypotheses were tested to explain this relationship: (1) the core-satellite hypothesis, and (2) the ecological specialisation. Abundance was log-normally distributed, and the relationship between meanabundance and variance of abundance followed Taylors power law prediction. Prevalence showed a negative binomial distribution, which does not confirm the core-satellite hypothesis. The positive relationships between abundance and prevalence was found forboth specialists and generalists. However, generalists were found to be more widely distributed among hosts and with higher abundances than specialists, which supports the ecological specialisation hypothesis.

Název v anglickém jazyce

Abundance-prevalence relationship of gill congeneric ectoparasites: testing the core satellite hypothesis and ecological specialisation

Popis výsledku anglicky

We investigated the abundance-prevalence relationships in monogeneans belonging to the genus Dactylogyrus. A total of 182 dactylogyrid populations representing 9 species collected from the gills of roach (Rutilus rutilus). Local abundance was found to bestrongly positively correlated with prevalence. Two hypotheses were tested to explain this relationship: (1) the core-satellite hypothesis, and (2) the ecological specialisation. Abundance was log-normally distributed, and the relationship between meanabundance and variance of abundance followed Taylors power law prediction. Prevalence showed a negative binomial distribution, which does not confirm the core-satellite hypothesis. The positive relationships between abundance and prevalence was found forboth specialists and generalists. However, generalists were found to be more widely distributed among hosts and with higher abundances than specialists, which supports the ecological specialisation hypothesis.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Parasitology Research

ISSN

0932-0113

e-ISSN

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Svazek periodika

88

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

682-686

Kód UT WoS článku

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EID výsledku v databázi Scopus

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