Comparing the Structure and Robustness of Passifloraceae - Floral Visitor and True Pollinator Networks in a Lowland Atlantic Forest

We investigated the plant-pollinator interactions of Passifloraceae occurring in fragments of lowland semi-deciduous Atlantic forest. We described floral biology, pollination syndromes and the pollinators of Passiflora alata, Passiflora kermesina, Passiflora suberosa, Passiflora malacophylla and Mi...

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Main Authors: Cristine Rodrigues Benevides, Darren M Evans, Maria Cristina Gaglianone
Format: Article
Language:English
Published: Universidade Estadual de Feira de Santana 2013-11-01
Series:Sociobiology
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Online Access:https://www.periodicos.uefs.br/index.php/sociobiology/article/view/188
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author Cristine Rodrigues Benevides
Darren M Evans
Maria Cristina Gaglianone
author_facet Cristine Rodrigues Benevides
Darren M Evans
Maria Cristina Gaglianone
author_sort Cristine Rodrigues Benevides
collection DOAJ
description We investigated the plant-pollinator interactions of Passifloraceae occurring in fragments of lowland semi-deciduous Atlantic forest. We described floral biology, pollination syndromes and the pollinators of Passiflora alata, Passiflora kermesina, Passiflora suberosa, Passiflora malacophylla and Mitostemma glaziovii. We examined the robustness of the interaction networks to species loss, a plausible scenario resulting from forest fragmentation. The effects of pollination syndrome (flower size) on network robustness was also examined. Passiflora alata, P. malacophylla and P. suberosa were pollinated by bees of different corporal sizes. P. kermesina and M. glaziovii presented the highest diversity of visitors and were pollinated mainly by hummingbirds and butterflies, respectively. Through the analysis of the networks we differentiate the structures of the flower-visitor network with the ‘true’ plant-pollinator network. The robustness of the flower-visitor network to animal loss was generally high, but it declined when only true pollinators were included in the network. The sequential loss of plants from the flower-visitor network resulted in low robustness: the loss of key plants could have significant cascading effects on the animals feeding on them within the forest fragment. Future studies should consider the interactions between all flowering plants and animals in this habitat in order to guide conservation and management plans for these forest fragments.
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spelling doaj-art-b2992d1d9d3b48239efeb35e8daa767e2025-08-20T03:39:21ZengUniversidade Estadual de Feira de SantanaSociobiology0361-65252447-80672013-11-01603Comparing the Structure and Robustness of Passifloraceae - Floral Visitor and True Pollinator Networks in a Lowland Atlantic ForestCristine Rodrigues Benevides0Darren M Evans1Maria Cristina Gaglianone2Universidade Estadual do Norte Fluminense Darcy RibeiroUniversity of HullUniversidade Estadual do Norte Fluminense Darcy Ribeiro We investigated the plant-pollinator interactions of Passifloraceae occurring in fragments of lowland semi-deciduous Atlantic forest. We described floral biology, pollination syndromes and the pollinators of Passiflora alata, Passiflora kermesina, Passiflora suberosa, Passiflora malacophylla and Mitostemma glaziovii. We examined the robustness of the interaction networks to species loss, a plausible scenario resulting from forest fragmentation. The effects of pollination syndrome (flower size) on network robustness was also examined. Passiflora alata, P. malacophylla and P. suberosa were pollinated by bees of different corporal sizes. P. kermesina and M. glaziovii presented the highest diversity of visitors and were pollinated mainly by hummingbirds and butterflies, respectively. Through the analysis of the networks we differentiate the structures of the flower-visitor network with the ‘true’ plant-pollinator network. The robustness of the flower-visitor network to animal loss was generally high, but it declined when only true pollinators were included in the network. The sequential loss of plants from the flower-visitor network resulted in low robustness: the loss of key plants could have significant cascading effects on the animals feeding on them within the forest fragment. Future studies should consider the interactions between all flowering plants and animals in this habitat in order to guide conservation and management plans for these forest fragments. https://www.periodicos.uefs.br/index.php/sociobiology/article/view/188Floral syndromespollination ecologyplant-pollinator network structurecrop pollinators
spellingShingle Cristine Rodrigues Benevides
Darren M Evans
Maria Cristina Gaglianone
Comparing the Structure and Robustness of Passifloraceae - Floral Visitor and True Pollinator Networks in a Lowland Atlantic Forest
Sociobiology
Floral syndromes
pollination ecology
plant-pollinator network structure
crop pollinators
title Comparing the Structure and Robustness of Passifloraceae - Floral Visitor and True Pollinator Networks in a Lowland Atlantic Forest
title_full Comparing the Structure and Robustness of Passifloraceae - Floral Visitor and True Pollinator Networks in a Lowland Atlantic Forest
title_fullStr Comparing the Structure and Robustness of Passifloraceae - Floral Visitor and True Pollinator Networks in a Lowland Atlantic Forest
title_full_unstemmed Comparing the Structure and Robustness of Passifloraceae - Floral Visitor and True Pollinator Networks in a Lowland Atlantic Forest
title_short Comparing the Structure and Robustness of Passifloraceae - Floral Visitor and True Pollinator Networks in a Lowland Atlantic Forest
title_sort comparing the structure and robustness of passifloraceae floral visitor and true pollinator networks in a lowland atlantic forest
topic Floral syndromes
pollination ecology
plant-pollinator network structure
crop pollinators
url https://www.periodicos.uefs.br/index.php/sociobiology/article/view/188
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