e-journal

Invasion status and phylogenetic relatedness predict cost of heterospecific pollen receipt: implications for native biodiversity decline

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1. Understanding the mechanisms by which invasive species affect native plants is a central challenge.
Invasive plants have been shown to reduce pollinator visitation to natives and increase pollen
quantity limitation. However, visitation and conspecific pollen delivery are the only two components
of the pollination process; post-pollination interactions on the stigma (heterospecific pollen [HP]
receipt) could intensify pre-pollination responses to invasion.

2. Here, we used meta-analysis to test the hypotheses that invasive plants are more detrimental as
HP donors than natives ones and that HP donors that are closely related to the recipients have
stronger effects on fruit and seed production compared to distantly related ones.

3. Invasive HP donors reduced fruit and seed production of recipients to a greater degree than native
ones, and this was more intense for HP donors closely related to natives. Related donors were more
detrimental overall.

4. Synthesis. These results suggest that the total effect of invasive plants on native plant reproductive
success could be greater than what is inferred from visitation and conspecific pollen transfer
alone. Furthermore, these results indicate that invasive species can reduce reproductive success of
native species even if pollinator visitation rates remain unaltered. Thus, we highlight the need to
evaluate pre- and post-pollination processes in order to fully understand the potential effects of invasive
species on the reproductive success and maintenance of native plant populations.

Key-words: coflowering, invasion ecology, invasive species, plant–pollinator interactions, pollen
transfer, pollinator sharing

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Ecology

No. Panggil

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Penerbit

London : John Wiley & Sons Ltd on behalf of British Ecological Society., 2016

Deskripsi Fisik

Journal of Ecology 2016, 104, 1003–1008

Bahasa

English

ISBN/ISSN

doi: 10.1111/1365-27

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, 104

Subjek

EKOLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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