Gustavo Q. Romero

Universidade Estadual de Campinas (UNICAMP)

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Co-Authors

Pavel Kratina

Queen Mary University of London

Camila Vieira

Universidade de São Paulo

Diane S. Srivastava

University of British Columbia

Pablo A. P. Antiqueira

Universidade Estadual de Campinas (UNICAMP)

Nicholas A. C. Marino

Universidade Federal do Rio de Janeiro

Paula M. de Omena

Universidade Vila Velha

Mônica F. Kersch‐Becker

Pennsylvania State University

João Vasconcellos‐Neto

Universidade Estadual de Campinas (UNICAMP)

Thiago Gonçalves‐Souza

Universidade Federal Rural de Pernambuco

Vinicius F. Farjalla

Universidade Federal do Rio de Janeiro

Cooperative Institutions

John Wiley & Sons (United States)

311

Ecological Society of America

308

IFC Research (United Kingdom)

103

Universidade Estadual de Campinas (UNICAMP)

100

Wyoming Game and Fish Department

Universidade de São Paulo

Universidade Estadual Paulista (Unesp)

Universidade Federal de Minas Gerais

University of California, Davis

Centre National de la Recherche Scientifique

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Colonization Pattern of Cecropia by Azteca Ants : Influence of Plant Ontogeny, Environment and Host Plant Choice by Queens

Sociobiology (2008)

Aline Hiroko Nishi Gustavo Q. Romero

Several plant species of the large Neotropical genus Cecropia acts as a host plant for ants, especially those of the genus Azteca. Although literature has reported that the Azteca queens found colonies by perforating the prostoma to establish their nests inside the Cecropia trunks (domatia), little is known about which host plant parameters (e.g., ontogenetic development) are evaluated by the queens to choose their hosts, or even whether this choice influences colony success. Because larger plants provide more space and food, it is expected that queens of the plant ant Azteca sp. can more frequently colonize the larger plants of C. pachystachya, and that active colonies, i.e., those with active workers, occur more frequently in these plants. In our study, founding queens occurred more frequently in larger plants. However, linear regressions showed a strong positive relationship between trunk diameter and number of perforated prostomes on young plants yet without active colonies ofAzteca sp., indicating that queens colonize plants which are still very young. In these plants several dead and moribund queens were found inside the basal and apical internodes, respectively. Logistic regressions showed that active colonies occurred with higher probability inside the larger plants. These results suggest that queens recognize larger plants, but are not able to evaluate optimal plant sizes suitable for the colony to thrive.

Cecropia

Plant stem

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Citations (7)

Electronic supplementary data from Arthropod–bacteria interactions influence assembly of aquatic host microbiome and pathogen defense.

Figshare (2019)

Sasha E. Greenspan Mariana L. Lyra Gustavo H. Migliorini Mônica F. Kersch‐Becker Molly C. Bletz

Information on variables collected for each tadpole or water sample

Arthropod

10.6084/m9.figshare.8267930

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Citations (0)

Biotic interactions of mites, plants and leaf domatia

Current Opinion in Plant Biology (2005)

Gustavo Q. Romero Woodruff W. Benson

Mutualism

10.1016/j.pbi.2005.05.006

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Citations (107)

Terrestrial support of aquatic food webs depends on light inputs: a geographically‐replicated test using tank bromeliads

Ecology (2016)

Vinicius F. Farjalla Angélica L. González Régis Céréghino Olivier Dézerald Nicholas A. C. Marino

Abstract Food webs of freshwater ecosystems can be subsidized by allochthonous resources. However, it is still unknown which environmental factors regulate the relative consumption of allochthonous resources in relation to autochthonous resources. Here, we evaluated the importance of allochthonous resources (litterfall) for the aquatic food webs in Neotropical tank bromeliads, a naturally replicated aquatic microcosm. Aquatic invertebrates were sampled in more than 100 bromeliads within either open or shaded habitats and within five geographically distinct sites located in four different countries. Using stable isotope analyses, we determined that allochthonous sources comprised 74% (±17%) of the food resources of aquatic invertebrates. However, the allochthonous contribution to aquatic invertebrates strongly decreased from shaded to open habitats, as light incidence increased in the tanks. The density of detritus in the tanks had no impact on the importance of allochthonous sources to aquatic invertebrates. This overall pattern held for all invertebrates, irrespective of the taxonomic or functional group to which they belonged. We concluded that, over a broad geographic range, aquatic food webs of tank bromeliads are mostly allochthonous‐based, but the relative importance of allochthonous subsidies decreases when light incidence favors autochthonous primary production. These results suggest that, for other freshwater systems, some of the between‐study variation in the importance of allochthonous subsidies may similarly be driven by the relative availability of autochthonous resources.

10.1002/ecy.1432

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Citations (42)

A Meta-Analysis of Predation Risk Effects on Pollinator Behaviour

PLoS ONE (2011)

Gustavo Q. Romero Pablo A. P. Antiqueira Julia Koricheva

Flower-visiting animals are constantly under predation risk when foraging and hence might be expected to evolve behavioural adaptations to avoid predators. We reviewed the available published and unpublished data to assess the overall effects of predators on pollinator behaviour and to examine sources of variation in these effects. The results of our meta-analysis showed that predation risk significantly decreased flower visitation rates (by 36%) and time spent on flowers (by 51%) by pollinators. The strength of the predator effects depended neither on predator taxa and foraging mode (sit-and-wait or active hunters) nor on pollinator lifestyle (social vs. solitary). However, predator effects differed among pollinator taxa: predator presence reduced flower visitation rates and time spent on flowers by Squamata, Lepidoptera and Hymenoptera, but not by Diptera. Furthermore, larger pollinators showed weaker responses to predation risk, probably because they are more difficult to capture. Presence of live crab spiders on flowers had weaker effects on pollinator behaviour than presence of dead or artificial crab spiders or other objects (e.g. dead bees, spheres), suggesting that predator crypsis may be effective to some extent. These results add to a growing consensus on the importance of considering both predator and pollinator characteristics from a community perspective.

Crypsis

Optimal foraging theory

10.1371/journal.pone.0020689

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Citations (167)

Associações entre aranhas Salticidae e Bromeliaceae

Gustavo Q. Romero

Introduction Material and methods Results Discussion

Bromeliaceae

10.47749/t/unicamp.2005.350887

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Citations (0)

Human pressure drives biodiversity–multifunctionality relationships in large Neotropical wetlands

Nature Ecology & Evolution (2022)

Dieison A. Moi Fernando Miranda Lansac‐Tôha Gustavo Q. Romero Thadeu Sobral‐Souza Bradley J. Cardinale

Freshwater ecosystem

10.1038/s41559-022-01827-7

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Citations (52)

Dataset For 'Different In The Dark: The Effect Of Habitat Characteristics On Community Composition And Beta Diversity In Bromeliad Microfauna'

Zenodo (CERN European Organization for Nuclear Research) (2018)

Angela Busse Pablo A. P. Antiqueira Alexandre Schneid Neutzling Anna Wolf Gustavo Q. Romero

The file contains counting data for bromeliad-inhabiting microfauna (including, heterotrophic nanoflagellates, ciliates, amoeba and rotifers) from samples taken on Ilha do Cardoso, Brazil. Also included are additional Information on abiotic and biotic factors measured (e.g. pH, dissolved oxygen concentration etc.).

Microfauna

10.5281/zenodo.1147666

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Citations (0)

Phoretic dispersal on bumblebees by bromeliad flower mites (Mesostigmata, Melicharidae)

Insectes Sociaux (2010)

Tadeu J. Guerra Gustavo Q. Romero João C. W. A. Costa Antônio C. Lofego Woodruff W. Benson

Mesostigmata

10.1007/s00040-010-0091-4

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Citations (21)

Bromeliad architectural complexity and vertical distribution predict spider abundance and richness

Austral Ecology (2010)

Thiago Gonçalves‐Souza Mário Almeida‐Neto Gustavo Q. Romero

Abstract Habitat complexity is a main predictor of the distribution of arthropods on vegetation. However, it remains poorly known whether plant architecture and fine‐scale spatial distribution affect the species richness and composition of associated arthropod guilds. In this study, we extensively sampled bromeliad species with a variety of rosette architectures in a megadiversity region. The aims were to investigate whether (i) possible differences in spider species composition among bromeliad species are related to the distinct architectures of the plants, and (ii) bromeliad architectural complexity (an intrinsic feature) and vertical distribution (an extrinsic feature) are good predictors of spider abundance and richness. Contrary to our expectations, spider species composition did not vary significantly among bromeliad species with different architectures. We found a positive effect of the mean number of leaves on spider abundance and species richness, but it occurred indirectly through spider abundance; factoring out the indirect effect revealed a negative effect of leaf number on species richness. Bromeliad species with wider vertical distributions harboured more spider species. Our results suggest that the dominance of a few spider species and reduced space for orb‐web spiders to attach their webs are the main explanations for lower spider richness on bromeliad species with higher architectural complexity. Our findings highlight the importance of both intrinsic and extrinsic plant features as co‐determinants of predator arthropod diversity.

10.1111/j.1442-9993.2010.02177.x

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Citations (29)