Structure of plant–Hymenoptera networks in two coastal shrub sites in Mexico

Campos‐Navarrete, María José; Parra-Tabla, Vı́ctor; Ramos-Zapata, José; Díaz‐Castelazo, Cecilia; Reyes‐Novelo, Enrique

doi:10.1007/s11829-013-9280-1

Cited by 31 publications

(49 citation statements)

References 53 publications

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“…In our study system in particular, native species share up to 25% of pollinator species with B. pilosa . Furthermore, C. edentula , S. plumieri , and B. pilosa are all visited by the generalist honey bee Apis mellifera , which is also the most frequent pollinator visitor in these sand dune communities (Campos‐Navarrete et al., ; Albor et al., ). Albor et al.…”

Section: Discussionmentioning

confidence: 99%

“…Recent studies have showed that B. pilosa has invaded large portions of the coast of the Yucatan Peninsula during the last 30 years, becoming one of the most dominant species (Espejel, , ; Parra‐Tabla et al., ). In these communities, B. pilosa is visited by a great diversity of insects, including lepidopterans, hymenopterans, and dipterans, which are the main pollinators of native plants in these coastal communities (Campos‐Navarrete et al., ). Prominent among insects that visit B. pilosa flowers are lepidopterans such as Ascia josephina , Ascia monuste (Pieridae), and Agraullis vanillae (Nymphalidae).…”

Section: Methodsmentioning

confidence: 99%

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Patterns and effects of heterospecific pollen transfer between an invasive and two native plant species: the importance of pollen arrival time to the stigma

Suárez‐Mariño¹,

Arceo‐Gómez

Sosenski³

et al. 2019

American J of Botany

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Premise Invasive plant species can integrate into native plant–pollinator communities, but the underlying mechanisms are poorly understood. Competitive interactions between invasive and native plants via heterospecific pollen (HP) and differential invasive HP effects depending on HP arrival time to the stigma may mediate invasion success, but these have been little studied. Methods We evaluated patterns and effects of HP receipt on pollen tube growth in two native and one invasive species in the field. We also used hand‐pollination experiments to evaluate the effect of invasive HP pollen and its arrival time on native reproductive success. Results Native species receive smaller and less‐diverse HP loads (5–7 species) compared to invasive species (10 species). The load size of HP had a negative effect on the proportion of pollen tubes in both native species but not in the invasive, suggesting higher HP tolerance in the latter. Invasive HP arrival time differentially affected pollen tube success in native species. Conclusions Our results highlight the need to study reciprocal HP effects between invasive and native species and the factors that determine differential responses to HP receipt to fully understand the mechanisms facilitating invasive species integration into native plant–pollinator communities.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Patterns and effects of heterospecific pollen transfer between an invasive and two native plant species: the importance of pollen arrival time to the stigma

Suárez‐Mariño¹,

Arceo‐Gómez

Sosenski³

et al. 2019

American J of Botany

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“…; but see Aizen, Morales & Morales ), the functional role of particular species may change (Campos‐Navarrete et al . ; Nielsen & Totland ).…”

Section: Introductionmentioning

confidence: 99%

Influence of the honeybee and trait similarity on the effect of a non‐native plant on pollination and network rewiring

Montero‐Castaño

Vilà

2016

Functional Ecology

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Summary Introduced entomophilous non‐native plants usually become well integrated into the diet of generalist pollinators. This integration can affect the entire recipient plant–pollinator network. Effects vary from facilitative to competitive, and understanding the factors that govern such variability is one of the fundamental goals in invasion ecology. Species traits determine the linking patterns between plant and pollinator species. Therefore, trait similarity among plants or among pollinators might modulate how they affect each other. We conducted a flower removal experiment to investigate the effects of the non‐native entomophilous legume Hedysarum coronarium on the pollination patterns of a Mediterranean shrubland plant–pollinator network. Specifically, we explored whether effects were influenced by similarity with the resident plant species in flower morphology (papilionate vs. non‐papilionate), and whether effects on the pollinator community were influenced by similarity in functional group with its main visitor species (bees vs. non‐bees). In addition, we explored whether Hedysarum had an effect on the identity of interactions. For this purpose, we calculated the interaction rewiring, that is the number of plant–pollinator interactions that were gained or lost after invasion. Hedysarum was well integrated into the diet of 15 generalist pollinators having the honeybee as its main visitor species. Such integration did not affect visitation rates, normalized degree (i.e. proportion of pollinators they are visited by) nor niche overlap (i.e. proportion of plant species they share pollinators with) of plants, irrespective of their flower morphology. Only the proportion of honeybee visits to resident plants decreased with invasion. On the other hand, Hedysarum reduced visitation rates and niche overlap of pollinators, mainly those of bee species. Finally, we observed that changes in the foraging behaviour of the honeybee were positively associated with the interaction rewiring involving the rest (92 taxa) of pollinators. In conclusion, pollinators show a plastic use of floral resources, responding to the presence of non‐native plants. When the non‐native attracts highly competitive pollinators such as the honeybee, plasticity is especially significant in pollinators that are functionally close to that competitive pollinator. The result is an interaction rewiring, probably due to pollinators avoiding competition with the honeybee. Though this plasticity might not quantitatively affect the pollination of plants, consequences on their reproduction and the functioning of the network can derive from the interaction rewiring. A http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12712/suppinfo is available for this article.

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“…Moreover, the particular species’ network functional role can change notably along a disturbance gradient. Thus, a plant species can act as a hub (being at the network core) in one site but as a specialist (being at the network periphery) in another site (Campos‐Navarrete et al , Nielsen and Totland 2014). Module and network hubs (i.e.…”

mentioning

confidence: 99%

Effects of habitat loss on the plant–flower visitor network structure of a dune community

Traveset

Castro‐Urgal

Rotllàn‐Puig

et al. 2017

Oikos

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Pollination is a valuable ecosystem service, and plant–pollinator interactions in particular are known to play a crucial role in conservation and ecosystem functioning. These mutualisms, like other ecological interactions, are currently threatened by different drivers of global change, mainly habitat loss, fragmentation, or modification of its quality. Most studies so far have focused on the impact of such disturbances on particular species interactions and we thus need more empirical evidence on the responses at a community‐level. Here we evaluated how habitat loss influenced the pattern of interactions between plants and their flower visitors in a coastal dune marshland community. Using data from four years (2008–2011), we assessed the effect of a large disturbance in the area (occurring in 2010) that represented the loss of more than 50% of the vegetation cover. We found a considerable decrease in species richness and abundance of flower visitors, which resulted in a lower number of interactions after the disturbance. Not all functional groups, however, responded similarly. Contrary to the expected from previous findings, bees and wasps were less negatively influenced than beetles, flies and ants, possibly due to their higher movement capacity. Species interactions in the community were more specialized after habitat loss, resulting in a lower level of network nestedness and a higher modularity. At a species level, the number of flower visitors per plant decreased after the disturbance, and plants were visited by less abundant flower visitors. Our findings lead us to predict that the overall plant–flower visitor network became less robust and resilient to future perturbations. However, the fact that each functional group responds distinctly to disturbances makes it more difficult to foresee the final consequences on community composition and ecosystem functioning.

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Structure of plant–Hymenoptera networks in two coastal shrub sites in Mexico

Cited by 31 publications

References 53 publications

Patterns and effects of heterospecific pollen transfer between an invasive and two native plant species: the importance of pollen arrival time to the stigma

Patterns and effects of heterospecific pollen transfer between an invasive and two native plant species: the importance of pollen arrival time to the stigma

Influence of the honeybee and trait similarity on the effect of a non‐native plant on pollination and network rewiring

Effects of habitat loss on the plant–flower visitor network structure of a dune community

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