Feeding preferences and host associations of specialist marine herbivores align with quantitative variation in seaweed secondary metabolites
ABSTRACT: Consequences of congeneric quantitative variation in secondary metabolites of seaweeds on diet specificity and host association in specialist marine herbivores have received little attention. We investigated quantitative variation in caulerpenyne and oxytoxin 1 in 7 species of green seaweeds from the genusCaulerpa, along with the feeding preferences and host associations of 4 co-occurring sacoglossan molluscs.C. taxifoliaandC. sertularioidescontained high concentrations of metabolites and were preferred least by all herbivores. Algae with intermediate metabolite concentrations (C. racemosa,C. serrulata, andC. cupressoides) were preferred byElysia tomentosaandLobiger viridis.Oxynoe viridisandStiliger smaragdinushad strong preferences for different low concentration Caulerpa species (C. racemosavar.laetevirensandC. lentillifera), suggesting not all feeding preferences are based exclusively on the major metabolites.In situhost associations ofL. viridisandS. smaragdinusmirrored their feeding preferences, but this was not the case forE. tomentosa. Furthermore, those algal species with the highest and lowest metabolite concentrations had the lowest overall densities of sacoglossans. The results imply that the direct influence of quantitative variation inCaulerpachemistry may only be limited to host associations in some sacoglossans. However, feeding pressure from multiple herbivore species with unique preferences could still contribute to variation in chemical defence amongst congeneric algae..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2009 |
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| Erschienen: |
2009 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:396 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
Baumgartner, Finn A. [VerfasserIn] |
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| Links: |
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| PPN (Katalog-ID): |
JST114430675 |
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| 041 | |a eng | ||
| 100 | 1 | |a Baumgartner, Finn A. |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Feeding preferences and host associations of specialist marine herbivores align with quantitative variation in seaweed secondary metabolites |
| 264 | 1 | |c 2009 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
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| 520 | |a ABSTRACT: Consequences of congeneric quantitative variation in secondary metabolites of seaweeds on diet specificity and host association in specialist marine herbivores have received little attention. We investigated quantitative variation in caulerpenyne and oxytoxin 1 in 7 species of green seaweeds from the genusCaulerpa, along with the feeding preferences and host associations of 4 co-occurring sacoglossan molluscs.C. taxifoliaandC. sertularioidescontained high concentrations of metabolites and were preferred least by all herbivores. Algae with intermediate metabolite concentrations (C. racemosa,C. serrulata, andC. cupressoides) were preferred byElysia tomentosaandLobiger viridis.Oxynoe viridisandStiliger smaragdinushad strong preferences for different low concentration Caulerpa species (C. racemosavar.laetevirensandC. lentillifera), suggesting not all feeding preferences are based exclusively on the major metabolites.In situhost associations ofL. viridisandS. smaragdinusmirrored their feeding preferences, but this was not the case forE. tomentosa. Furthermore, those algal species with the highest and lowest metabolite concentrations had the lowest overall densities of sacoglossans. The results imply that the direct influence of quantitative variation inCaulerpachemistry may only be limited to host associations in some sacoglossans. However, feeding pressure from multiple herbivore species with unique preferences could still contribute to variation in chemical defence amongst congeneric algae. | ||
| 540 | |a © Inter-Research 2009 | ||
| 650 | 4 | |a Caulerpa | |
| 650 | 4 | |a Chemical cue | |
| 650 | 4 | |a Coevolution | |
| 650 | 4 | |a Dietary niche | |
| 650 | 4 | |a Macroalgae | |
| 650 | 4 | |a Opisthobranch | |
| 650 | 4 | |a Plant–herbivore interactions | |
| 650 | 4 | |a Congeneric variation | |
| 650 | 4 | |a Biological sciences |x Biology |x Botany |x Marine botany |x Phycology |x Algae |x Seaweeds | |
| 650 | 4 | |a Biological sciences |x Ecology |x Ecological processes |x Ecosystem dynamics |x Trophic dynamics |x Trophic levels |x Heterotrophs |x Herbivores | |
| 650 | 4 | |a Biological sciences |x Biochemistry |x Metabolism |x Metabolites | |
| 650 | 4 | |a Behavioral sciences |x Ethology |x Animal behavior |x Animal feeding behavior |x Feeding preferences | |
| 650 | 4 | |a Biological sciences |x Biology |x Botany |x Marine botany |x Phycology |x Algae | |
| 650 | 4 | |a Biological sciences |x Biology |x Zoology |x Animals | |
| 650 | 4 | |a Health sciences |x Medical sciences |x Nutritional science |x Dietetics |x Diet | |
| 650 | 4 | |a Physical sciences |x Chemistry |x Chemical compounds |x Chemicals | |
| 650 | 4 | |a Biological sciences |x Biology |x Biological taxonomies |x Species | |
| 650 | 4 | |a Biological sciences |x Ecology |x Chemical ecology |x FEATURE ARTICLE | |
| 655 | 4 | |a research-article | |
| 700 | 1 | |a Motti, Cherie A. |e verfasserin |4 aut | |
| 700 | 1 | |a de Nys, Rocky |e verfasserin |4 aut | |
| 700 | 1 | |a Paul, Nicholas A. |e verfasserin |4 aut | |
| 773 | 1 | 8 | |g volume:396 |g year:2009 |g month:12 |g pages:1-12 |
| 856 | 4 | 0 | |u https://www.jstor.org/stable/24874254 |3 Volltext |
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