Does Plant Origin Influence the Fitness Impact of Flower Damage? A Meta-Analysis

González-Browne, Catalina; Murúa, Maureen; Navarro, Luis; Medel, Rodrigo

doi:10.1371/journal.pone.0146437

Cited by 14 publications

(11 citation statements)

References 72 publications

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“…Table 1 The tangled nature of the ecology, evolution and biogeography of widely studied herbivores and pollinators, and overlooked florivores. Browne et al, 2016;Caruso et al, 2019;Moreira et al, 2019) and extracted data on floral damage, defined as any kind of damage to any floral part, including petals, sepals and sexual organs. It was not always possible to separate damage within the reproductive structures, so the damage to stamens, pistils and ovules was collectively labelled as damage to reproductive parts.…”

Section: Global Trends Of Naturally Occurring Florivorymentioning

confidence: 99%

“…Florivory resembles herbivory in that it involves the consumption of plant tissues with direct (damaging reproductive structures) and indirect (affecting the attractiveness of damaged flowers to pollinators) negative effects on plant performance (see González‐Browne et al ., 2016; Soper‐Gorden & Adler, 2016; Soper‐Gorden et al ., 2016). However, florivory also resembles pollination in that flowers are a crucial resource to florivores in similar ways as they are to pollinators (Genini et al ., 2010).…”

Section: Introductionmentioning

confidence: 99%

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Revisiting florivory: an integrative review and global patterns of a neglected interaction

et al. 2021

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Florivory is an ancient interaction which has rarely been quantified due to a lack of standardized protocols, thus impairing biogeographical and phylogenetic comparisons. We created a global, continuously updated, open-access database comprising 180 species and 64 families to compare floral damage between tropical and temperate plants, to examine the effects of plant traits on floral damage, and to explore the eco-evolutionary dynamics of flower-florivore interactions. Flower damage is widespread across angiosperms, but was two-fold higher in tropical vs temperate species, suggesting stronger fitness impacts in the tropics. Flowers were mostly damaged by chewers, but neither flower color nor symmetry explained differences in florivory. Herbivory and florivory levels were positively correlated within species, even though the richness of the florivore community does not affect florivory levels. We show that florivory impacts plant fitness via multiple pathways and that ignoring this interaction makes it more difficult to obtain a broad understanding of the ecology and evolution of angiosperms. Finally, we propose a standardized protocol for florivory measurements, and identify key research avenues that will help fill persistent knowledge gaps. Florivory is expected to be a central research topic in an epoch characterized by widespread decreases in insect populations that comprise both pollinators and florivores.

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Section: Global Trends Of Naturally Occurring Florivorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Revisiting florivory: an integrative review and global patterns of a neglected interaction

et al. 2021

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“…2010; Pintor & Byers 2015; Gonzalez‐Browne et al . 2016); refer the study by Boltovskoy et al . (2020) for a review.…”

Section: Discussionmentioning

confidence: 99%

“…One of the mainstream hypotheses aimed at explaining the success of introduced species is the enemy release hypothesis, which posits that the success of NIS is associated with the absence or scarcity of resident enemies in the habitat invaded (Elton 1958). Empirical support for this hypothesis was confirmed by Torchin et al (2003), Liu andStiling (2006), andEbbs et al (2018), but rejected by several other studies (Parker et al 2006;Chun et al 2010;Oduor et al 2010;Pintor & Byers 2015;Gonzalez-Browne et al 2016); refer the study by Boltovskoy et al (2020) for a review. On the other hand, adaptations of NIS after introduction have also been described.…”

Section: Discussionmentioning

confidence: 99%

Multiannual trends (2004–2019) in the abundance of larvae of the invasive mussel Limnoperna fortunei and crustacean zooplankton in a large South American reservoir

Boltovskoy

Bordet²,

Leites³

et al. 2021

Austral Ecology

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The behavior of non‐indigenous species with time since introduction varies widely and is a major issue in the understanding of their long‐term effects on the habitats colonised. We analysed the long‐term trends in the densities of larvae of the invasive mussel Limnoperna fortunei and planktonic Copepoda and Cladocera in Salto Grande, a large South American reservoir in the Uruguay River (Argentina‐Uruguay), on the basis of weekly samples collected between June 2004 and November 2019. All three groups depicted variable interannual abundances. While mussel veligers showed no significant interannual trends (overall mean: 2552 larvae L−1), crustaceans decreased significantly in the time elapsed (Copepoda: from ˜1000 to 100 ind. L−1; Cladocera: from ˜500 to 100 ind. L−1). We conclude that increasing discharge rates by the Uruguay River and the concomitant decreases in reservoir water residence times are the most likely cause for these drops in their populations. As opposed to many other invasive species elsewhere, and to the same mussel in other South American waterbodies, L. fortunei larvae did not change in abundance with time since introduction. Our results underscore the assumption that each biological introduction is a particular and highly context‐dependent event and the dynamics of biological invasions in general elude broad generalizations.

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“…At difference, the legitimate visitors cause minimal damages in the flowers, because they access nectar in a manner for which the flower is adapted (Bronstein et al 2017). Thus, nectar robbing is expected to entail negative consequences for plants and legitimate visitors (Darwin 1876, González‐Browne et al 2016). A common result for plants is indeed a reduction in their reproductive success, caused directly or indirectly by nectar robbers (Maloof and Inouye 2000, Irwin et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Nectar robbing and plant reproduction: an interplay of positive and negative effects

Rojas‐Nossa

Sánchez

Navarro

2021

Oikos

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Nectar robbers are animals that extract nectar through holes made in floral tissues. This behaviour has a wide spectrum of consequences for the plant that range from negative, to neutral, to positive according to life history traits of the interacting organisms and the ecological mechanisms involved. Lonicera etrusca has long tubular flowers producing large quantities of nectar and undergoing high levels of nectar robbing. Despite this, robbing seems to have neutral effects on the reproduction of the species. The aim of this work is to understand why this pollinator-dependent plant is not affected by an interaction that is commonly detrimental for plants. To achieve this goal we try to answer two questions: 1) do nectar robbers deposit suitable pollen for plant reproduction after a visit? And, 2) is the visitation rate of legitimate visitors affected by nectar robbing? We experimentally studied the details of the reproductive compatibility system of the plant and compared pollen tube growth after single visits of the main nectar robbers. We made observations on plants of three populations to study the effect of robbers on the visitation rates of legitimate foragers. The results revealed that nectar robbers effectively perform cross-pollination. Visitation rates of legitimate visitors are reduced by nectar robbing. The net neutral effect observed for L. etrusca is the result of two processes: on one side the direct positive effect of nectar robbers acting as pollinators, and on the other, a negative indirect effect caused by the decrease in visitation rates of legitimate visitors. Since the number of ovules in this species is low, both legitimate visitors and robbers contribute to an efficient cross-pollination. This example illustrates how neutral effects for the plant can arise as the final result of a complex interaction between plants, legitimate visitors and robbers.

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Does Plant Origin Influence the Fitness Impact of Flower Damage? A Meta-Analysis

Cited by 14 publications

References 72 publications

Revisiting florivory: an integrative review and global patterns of a neglected interaction

Revisiting florivory: an integrative review and global patterns of a neglected interaction

Multiannual trends (2004–2019) in the abundance of larvae of the invasive mussel Limnoperna fortunei and crustacean zooplankton in a large South American reservoir

Nectar robbing and plant reproduction: an interplay of positive and negative effects

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