e-journal

Effects of tree species diversity and genotypic diversity on leafminers and parasitoids in a tropical forest plantation

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1 The effects of tree diversity on herbivore–enemy interactions have received relatively
little attention and even fewer studies have compared the relative influence of tree
intra- versus interspecific diversity on such dynamics.

2 We evaluated the effects of mahogany (Swietenia macrophylla) genotypic diversity
and tree species diversity on parasitoid attack and species richness associated with
Phyllocnistis meliacella, a specialist herbivore on mahogany, in a forest diversity
experiment consisting of 74 plots (21 × 21m2; 64 plants/plot).We sampled 34 of such
plots classified as: mahogany monocultures of one maternal family (i.e. genotype),
mahogany monocultures of four families and polycultures of four species (including
mahogany).We surveyed leafminer abundance and collected mined leaves to estimate
parasitism and parasitoid species richness.

3 Leafminer abundance was not influenced by either type of diversity. Similarly, there
were no effects of genotypic diversity or species diversity on parasitism or parasitoid
species richness. Plant diversity effects on parasitoids were probably absent because
the species attacking P. meliacella are dietary generalists that likely recruited to
multiple host species (in addition to P. meliacella) and their responses to diversity
could have cancelled each other out.

4 Future work should explicitly investigate how predator and parasitoid traits mediate
the effects of plant diversity on tritrophic interactions.

Keywords Enemies hypothesis, genotypic diversity, herbivory, parasitoids, species diversity, tritrophic interactions.

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Informasi Detail

Judul Seri

Agricultural and Forest Entomology

No. Panggil

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Penerbit

New York : The Royal Entomological Society., 2016

Deskripsi Fisik

Agricultural and Forest Entomology (2016), 18, 43–51

Bahasa

English

ISBN/ISSN

DOI: 10.1111/afe.121

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

(2016), 18

Subjek

PERTANIAN.

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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