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| rdf:type
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| Description
| - The hypothesis that small body size is correlated with preference for young leaves was tested in a community of leafchewing insect herbivores feeding on Ficus wassa in a humid tropical forest in Papua New Guinea. Feeding experiments revealed a negative correlation between body size and a preference for young leaves. While small species preferred young leaves, large species showed no preferences, or preferred young leaves only slightly. This relationship was found for the entire leaf-chewing community, as well as for many of the constituent taxa on several taxonomic levels, from orders to genera. Taxonomic position of a species played little role in determining its preferences. It is proposed that higher toughness and lower nutrient content may act as complementary defences, which prevent small insects from feeding on mature foliage.
- The hypothesis that small body size is correlated with preference for young leaves was tested in a community of leafchewing insect herbivores feeding on Ficus wassa in a humid tropical forest in Papua New Guinea. Feeding experiments revealed a negative correlation between body size and a preference for young leaves. While small species preferred young leaves, large species showed no preferences, or preferred young leaves only slightly. This relationship was found for the entire leaf-chewing community, as well as for many of the constituent taxa on several taxonomic levels, from orders to genera. Taxonomic position of a species played little role in determining its preferences. It is proposed that higher toughness and lower nutrient content may act as complementary defences, which prevent small insects from feeding on mature foliage. (en)
- Fytofágnímu hmyzu sbíranému na listech fíkovníku Ficus wassa jsme ve výběrových experimentech nabízeli mladé a dospělé listy živné rostliny (F. wassa). Výsledky ukázaly, že preference pro mladé listy je silně negativně korelována s velikostí těla herbivora, zatímco taxonomická příslušnost hmyzího druhu nehraje významnou roli. Nižší obsah dusíkatých látek a dalších živin ve starších listech má zřejmě větší vliv na malý herbivorní hmyz, protože s klesající velikostí hmyzího těla klesá efektivita trávení a roste bazální metabolizmus. Vyšší tuhost dospělých listů zároveň mechanicky komplikuje příjem potravy, opět především malému hmyzu. Nižší obsah živin a vyšší tuhost dopělých listů tak zřejmě fungují jako komplementární obranné strategie rostlin. (cs)
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| Title
| - Diet composition and body size in insect herbivores: Why do small species prefer young leaves?
- Diet composition and body size in insect herbivores: Why do small species prefer young leaves? (en)
- Složení potravy a velikost těla: Proč malý hmyz preferuje mladé listy? (cs)
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| skos:prefLabel
| - Diet composition and body size in insect herbivores: Why do small species prefer young leaves?
- Diet composition and body size in insect herbivores: Why do small species prefer young leaves? (en)
- Složení potravy a velikost těla: Proč malý hmyz preferuje mladé listy? (cs)
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| skos:notation
| - RIV/60077395:_____/05:00028390!RIV06-GA0-60077395
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GA206/99/1112), P(IAA6007106), P(ME 041), Z(AV0Z50070508)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/60077395:_____/05:00028390
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - body size; constraint; diet composition (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - European Journal of Entomology
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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