Effects of defoliation on male and female reproductive traits of a perennial orchid, <i>Dactylorhiza maculata</i>

Vallius, Elisa; Salonen, Veikko

doi:10.1046/j.1365-2435.2000.00467.x

Cited by 13 publications

(2 citation statements)

References 39 publications

(81 reference statements)

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“…The observed carry-over effect of leaf damage is probably due to differences in resource reallocation patterns after different amounts of damage, and it may be further confounded by the potential costs of (sexual) reproduction (Primack, Miao, & Becker, 1994;Puentes & Ågren, 2012;Vallius & Salonen, 2000). Our findings emphasize the importance of following the effects of herbivore damage over more than one growing season in perennial plants.…”

Section: Discussionmentioning

confidence: 99%

“…In addition to the complexity added by dual modes of reproduction, it is known that herbivory can have both short-term and long-term effects on fitness (Ehrlén, 2002;Muola et al, 2010;Puentes & Ågren, 2012;Strauss, 1991). While short-term effects are well documented, long-term effects are less well understood (but see Huhta, Rautio, Hellström, Saari, & Tuomi, 2009;Muola et al, 2010;Puentes & Ågren, 2012;Vallius & Salonen, 2000).…”

Section: Introductionmentioning

confidence: 99%

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Folivory has long‐term effects on sexual but not on asexual reproduction in woodland strawberry

Muola

Stenberg

2018

Ecology and Evolution

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Plant fitness is often a result of both sexual and asexual reproductive success and, in perennial plants, over several years. Folivory can affect both modes of reproduction. However, little is known about the effects of folivory on resource allocation to the two modes of reproduction simultaneously and across years. In a 2‐year common garden experiment, we examined the effects of different levels of folivory by the strawberry leaf beetle, Galerucella tenella, on current growth, as well as current and future sexual and asexual reproduction (runners) of perennial woodland strawberry, Fragaria vesca. In addition, we measured the chlorophyll content in leaves in the year of experimental damage to determine whether there was increased photosynthetic activity, and, thus, a compensatory response to herbivory. Finally, we tested whether the previous year's folivory, as a result of its effect on plant fitness, affected the level of natural herbivory the plant experienced during the subsequent year. In the year of experimental damage, plants that were exposed to moderate and high levels of folivory (25% and 50% leaf area consumed, respectively) increased their photosynthetic activity compared to control plants. However, only plants exposed to high folivory exhibited negative effects, with a lower probability of flowering compared to control plants, indicating that plants exposed to low or moderate folivory were able to compensate for the damage. Negative effects of folivory were carried over to the subsequent year. Plants that were exposed to moderate folivory (25% leaf area consumed) during first year produced fewer flowers and fruits in the subsequent year. Runner production was consistently unaffected by folivory. The effects of experimental folivory on the level of natural herbivory were mediated via its effects on plant fitness. Our results show that the negative effects of folivory only influence sexual reproduction in woodland strawberry. Furthermore, even though woodland strawberry can tolerate moderate amounts of folivory in the short term, the negative effects on fitness appear later; this highlights the importance of studying the effects of herbivory over consecutive years in perennial plants.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Folivory has long‐term effects on sexual but not on asexual reproduction in woodland strawberry

Muola

Stenberg

2018

Ecology and Evolution

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Additive and non-additive effects of simulated leaf and inflorescence damage on survival, growth and reproduction of the perennial herb Arabidopsis lyrata

Puentes

Ågren

2012

Oecologia

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Herbivores may damage both leaves and reproductive structures, and although such combined damage may affect plant fitness non-additively, this has received little attention. We conducted a 2-year field experiment with a factorial design to examine the effects of simulated leaf (0, 12.5, 25, or 50% of leaf area removed) and inflorescence damage (0 vs. 50% of inflorescences removed) on survival, growth and reproduction in the perennial herb Arabidopsis lyrata. Leaf and inflorescence damage negatively and independently reduced flower, fruit and seed production in the year of damage; leaf damage also reduced rosette size by the end of the first season and flower production in the second year. Leaf damage alone reduced the proportion of flowers forming a fruit and fruit production per plant the second year, but when combined with inflorescence damage no such effect was observed (significant leaf × inflorescence damage interaction). Damage to leaves (sources) caused a greater reduction in future reproduction than did simultaneous damage to leaves and inflorescences (sinks). This demonstrates that a full understanding of the effects of herbivore damage on plant fitness requires that consequences of damage to vegetative and reproductive structures are evaluated over more than 1 year and that non-additive effects are considered.

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Floral display influences male and female reproductive success of the deceptive orchid Phaius delavayi

Bao-qiang

Pemberton

et al. 2011

Plant Syst Evol

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Effects of defoliation on male and female reproductive traits of a perennial orchid, Dactylorhiza maculata

Cited by 13 publications

References 39 publications

Folivory has long‐term effects on sexual but not on asexual reproduction in woodland strawberry

Folivory has long‐term effects on sexual but not on asexual reproduction in woodland strawberry

Additive and non-additive effects of simulated leaf and inflorescence damage on survival, growth and reproduction of the perennial herb Arabidopsis lyrata

Floral display influences male and female reproductive success of the deceptive orchid Phaius delavayi

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