The rate of visitation by Amazilia fimbriata (Apodiformes: Trochilidae) influences seed production in Tillandsia stricta (Bromeliaceae)

Missagia, Caio César Corrêa; Alves, Maria Alice S.

doi:10.1590/s1984-46702015000300010

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…In the Pedra Branca State Park, the flowers of Costus spiralis that received a single visit (bagged treatment) did not attain the same seed set as the flowers that received an unrestricted number of visits (unbagged treatment). These results indicate a positive relationship between visitation rates and seed set in C. spiralis , as observed in other tropical ornithophilous plants, including both self‐compatible (Missagia & Alves, ) and self‐incompatible species (Longo & Fischer, ). Self‐incompatible systems can reduce or impede self‐pollination, making the pollinator a prerequisite for the reproduction of the plant (Sawada, Morita & Iwano, ).…”

Section: Discussionsupporting

confidence: 78%

Does beak size predict the pollination performance of hummingbirds at long and tubular flowers? A case study of a Neotropical spiral ginger

Missagia

Alves

2018

Journal of Zoology

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Long‐billed hummingbirds are assumed to be better adapted than short‐billed ones for the pollination of long tubular flowers. However, the majority of the empirical evidence is derived from surveys of pollinator feeding performance, which tend to ignore the implications for plant fitness. Here, we tested the long‐billed performance hypothesis from the perspective of the pollinated plant. We conducted a comparative survey to evaluate fecundity in relation to the length of the beak of the pollinating hummingbirds visiting the long and tubular flowers of Costus spiralis (Costaceae), in the Brazilian Atlantic forest. The flowers of C. spiralis were pollinated by three hummingbird species and their nectar was thieved by the bee Eulaema sp. There was no significant difference in the frequency of floral visits nor in the production of seeds among the three hummingbirds in fruits formed from flowers exposed to a single visit by each pollinator. Unexpectedly, our results indicate that the floral morphology of C. spiralis is equally compatible with long‐ and short‐billed pollinators, and is apparently incompatible with pollination by large insects. These findings emphasize the need to test the performance of each floral visitor with the simultaneous estimation of the intensity of the interactions, to increase the accuracy of the measurement of the pollinator's relative importance in studies of plant–pollinator interactions in ornithophilous systems.

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Section: Discussionsupporting

confidence: 78%

Does beak size predict the pollination performance of hummingbirds at long and tubular flowers? A case study of a Neotropical spiral ginger

Missagia

Alves

2018

Journal of Zoology

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“…Once the inflorescences had matured and the bracts had opened, each bract used in the experiment was bagged individually, to avoid the transfer of larvae between bracts ( Missagia and Alves 2017 ). To ensure that no larvae moved between bracts, we coated the bract with a layer of non-toxic sticky ( TangleFoot ® ) resin ( Missagia and Alves 2015 ; Alves-Silva and Del-Claro 2016 ). The bracts used in the experiment thus had physical and chemical barriers to proven the larvae from escaping.…”

Section: Methodsmentioning

confidence: 99%

Florivory by the occupants of phytotelmata in flower parts can decrease host plant fecundity

Missagia

Alves

2021

Current Zoology

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Some types of plant accumulate liquid in their inflorescences creating phytotelmata. These environments protect the flowers against florivory, although they may be colonized by aquatic or semi-aquatic florivorous insect larvae, whose effects on the fitness of the plants remain unclear. We tested the hypothesis of floral antagonism by the occupants of phytotelmata, which predicts that florivory by the occupants of the phytotelmata represents a cost to the female fitness of the plant, reducing its fecundity. We manipulated experimentally the infestation by three florivores larvae species occupants of phytotelmata in inflorescences of Heliconia spathocircinata (Heliconiaceae) to test for negative direct trophic effects on the fecundity of the flowering and fruiting bracts. We found that the foraging of the hoverfly (Syrphidae) and moth (Lepidoptera) larvae in the inflorescences contributed to a decline in the fecundity of the plant. While the lepidopteran impacted fecundity when foraging in both flowering and fruiting bracts, the syrphid only affected the fruiting bracts, which indicates that the nectar and floral tissue are the principal resource exploited by the hoverfly. By contrast, soldier fly (Stratiomyidae) had a neutral effect on fecundity, while foraging in flowering or fruiting bracts. These findings corroborate our hypothesis, that herbivory by the larval occupants represents cost to the host plant having phytotelmata. The negative influence of this foraging on plant fecundity will nevertheless depend on the consequences of the exploitation of resources, which vary considerably in ephemeral habitats such as the phytotalmanta of flower parts.

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“…Nearly 50 percent of bromeliad species are epiphytic; they have leaf trichomes of varied forms that function as moistureand nutrient absorptive appendages (Benzing 2000). Regarding their reproductive ecology, bromeliads have a wide range of pollinators, including bats, birds, and insects, which are the agents of pollen transfer in self-and outcrossing species; there are also autogamous taxa that do not need pollinator agents (Kessler & Krömer 2000;Canela & Sazima 2003, 2005Krömer & Kessler 2006;Krömer et al 2008;Kamke et al 2011;Schmid et al 2011aSchmid et al , 2011bMarques et al 2015;Missagia & Alves 2015;Aguilar-Rodríguez et al 2016;Godoy et al 2018;Gomes et al 2019). As reviewed by Zanella et al (2012), bromeliads have evolved floral displays with a great diversity of colors, shapes, and scents that are related to pollinator attraction, with nectar being the usual reward.…”

Section: Introductionmentioning

confidence: 99%

Pollination by hummingbirds of Vriesea gigantea (Bromeliaceae) populations in Southern Brazil

2021

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The pollination syndrome hypothesis usually does not successfully apply to the diversity of floral phenotypes or help predict the pollinators of most plant species. In Bromeliaceae, there is a wide range of floral visitors, making its species ideal to test for a correlation between nectar and floral traits with pollination syndrome. In this study, we analyzed the floral features, nectar production patterns, pollinators and floral visitors of Vriesea gigantea, and discussed its potential adaptive and ecological significance. We study three natural populations from the Atlantic Forest, Southern Brazil. The species presented protogyny and herkogamy, and its anthesis occurred at different periods among different populations. Vriesea gigantea has a relatively constant rate of nectar production during the day that continues overnight but at a reduced rate. Newly opened flowers already have around 80.0 μl of nectar. Although classified as chiropterophilous, based on flower morphology and pollinator observations, our results show that hummingbirds are effective pollinators in the studied populations of V. gigantea.

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The rate of visitation by Amazilia fimbriata (Apodiformes: Trochilidae) influences seed production in Tillandsia stricta (Bromeliaceae)

Cited by 5 publications

References 15 publications

Does beak size predict the pollination performance of hummingbirds at long and tubular flowers? A case study of a Neotropical spiral ginger

Does beak size predict the pollination performance of hummingbirds at long and tubular flowers? A case study of a Neotropical spiral ginger

Florivory by the occupants of phytotelmata in flower parts can decrease host plant fecundity

Pollination by hummingbirds of Vriesea gigantea (Bromeliaceae) populations in Southern Brazil

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