Invertebrate Seed Predators are not all the Same: Seed Predation by Bruchine and Scolytine Beetles Affects Palm Recruitment in Different Ways

Because most invertebrate seed predators are host-specific, they are usually expected to produce Janzen-Connell patterns. This expectation was fulfilled for Astrocaryum but not for Allagoptera, depending on the effects of bruchine and scolytine predators on the seeds of these palms. Thus, the mere e...

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Veröffentlicht in:Biotropica 2011, Vol.43 (1), p.8-11
Hauptverfasser: Dracxler, Caroline M., Pires, Alexandra S., Fernandez, Fernando A. S.
Format: Artikel
Sprache:eng
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Zusammenfassung:Because most invertebrate seed predators are host-specific, they are usually expected to produce Janzen-Connell patterns. This expectation was fulfilled for Astrocaryum but not for Allagoptera, depending on the effects of bruchine and scolytine predators on the seeds of these palms. Thus, the mere existence of invertebrate predation is not sufficient for generating Janzen-Connell; what matters is seed mortality, which varies between predators and between plant species for the same predator. Abstract in Portuguese is available at http://www.blackwell-synergy.com/loi/btp.
ISSN:0006-3606
1744-7429
DOI:10.1111/j.1744-7429.2010.00723.x