Gudryan J. Barônio

Gudryan J. Barônio
University of São Paulo | USP · Department of Ecology (IB)

Ecologist | PhD in Ecology and Conservation of Natural Resources

About

36
Publications
10,018
Reads
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231
Citations
Citations since 2016
29 Research Items
184 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
Additional affiliations
April 2019 - present
Universidade Federal dos Vales do Jequitinhonha e Mucuri
Position
  • PostDoc Position
March 2017 - March 2018
Universidade Federal de Uberlândia (UFU)
Position
  • PostDoc Position
Education
March 2011 - February 2017
Universidade Federal de Uberlândia (UFU)
Field of study
  • Ecology and Conservation
February 2007 - December 2010
Universidade Federal de Mato Grosso do Sul
Field of study
  • Biological Sciences

Publications

Publications (36)
Article
Full-text available
Encounters between flowers and invertebrates are key events for the functioning of tropical forests. Assessing the structure of networks composed by the interactions between those partners enables a better understanding of ecosystem functioning and the effects of environmental factors over ecological processes. Gathering such data is, however, cost...
Article
Full-text available
During the main COVID-19 global pandemic lockdown period of 2020 an impromptu set of pollination ecologists came together via social media and personal contacts to carry out standardised surveys of the flower visits and plants in gardens. The surveys involved 67 rural, suburban and urban gardens, of various sizes, ranging from 61.18° North in Norwa...
Article
Full-text available
Floral traits mediate the roles of distinct animals as effective pollinators along a generalization/specialization continuum. Many plant species are visited by different pollinator functional groups and the specific contribution of each group is expected to reflect the set of floral characteristics defined by pollination syndromes. Although conside...
Article
Dioecy, a character common to all cycads, requires obligatory outcrossing. The absence of potential reproductive mates of the opposite sex renders individuals effectively sterile. Therefore, reproductive synchrony is essential for the reproductive success of cycads. Here, we describe the reproductive phenology, morphology, and lifespan of strobili...
Article
• Pollination is provided by biodiversity and maintains global food production. We investigated the effects of vegetation cover on the abundance of floral visitor and vine (Vitis labrusca Raf.) production. We expected an increase in both floral visitor frequencies and vineyard yields with an increase in native vegetation cover in the landscape. We...
Article
Fire acts as an ecological filter determining species diversity and composition of communities. In tropical sa-vannas in Central Brazil, natural fire happens through lightning, but anthropogenic fire is also common, either controlled fire prescribed for management of vegetation and to promote grass growth or accidental and intentional fires related...
Article
Full-text available
Populations of dioecious plants commonly exhibit dissimilarities to the equilibrium expectation of a 1:1 sex ratio. Differential expenditure for reproduction between genders is cited as the primary mechanism responsible for a male-biased sex ratio, with increased effects on long-living species, but these mechanisms are still poorly understood. We e...
Article
Patterns in ecology are the products of current factors interacting with history. Nevertheless, few studies have attempted to disentangle the contribution of historical and current factors, such as climate change and pollinator identity and behavior, on plant reproduction. Here, we attempted to separate the relative importance of current and histor...
Article
Full-text available
Background: Natural environments within agricultural landscapes have been recognized as reservoirs of biodiversity and therefore, providers of fundamental ecosystem services to human beings. Bees are the main providers of pollination and thus contribute to the production of food consumed worldwide. In this work, we evaluated the distribution of be...
Article
Full-text available
In plant–pollination interactions, the antagonists collect the same set of resources offered to legitimate visitors, but their morphologies and behavioural approaches possibly make their effect on plant fitness negative rather than positive. Depending on the morphology of Malpighiaceae flowers, these small-bodied bees can adopt an upside-down posit...
Article
Full-text available
• Seasonal changes in environments may not only affect habitat connectivity but may also affect its use by species and their interactions. Thus, during the flood season, ants are forced to develop survival strategies such as vertical plant migration. • According to this, it has been hypothesized that the presence of ants may directly affect plant‐p...
Article
Full-text available
• Although the production of extranuptial nectar is a common strategy of indirect defense against herbivores among tropical plants, the presence of extranuptial nectaries in reproductive structures is rare, especially in ant‐plants. This is because the presence of ants in reproductive organs can generate conflicts between the partners, as ants can...
Article
Full-text available
The galling insect manipulates the host plant tissue to its own benefit, building the gall structure where it spends during most of its life cycle. These specialist herbivore insects can induce and manipulate plant structure and metabolism throughout gall development and may affect plant volatile emission. Consequently, volatile emission from alter...
Article
Full-text available
HOW DO BEES PERCEIVE FLOWERS AND WHY IT IS IMPORTANT? Animal cognition can be defined as the ability of an organism to acquire, retain and subsequently use the sensory information during decision-making processes in different contexts. The understanding of how the signals emitted in the environment interact with the sensory system of animals capab...
Article
Full-text available
Floral resources are strongly related to the establishment and maintenance of plant-pollinator interactions. Interacting species have different degrees of dependence, which are defined mainly by the strategies of plants to make available the floral resources and those presented by visitors in collecting these resources. However, morphological and b...
Article
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Floral rewards do not only attract pollinators, but also herbivores and their predators. Ants are attracted by extrafloral nectaries (EFNs), situated near flowers, and may interfere with the efficiency and behaviour of pollinators. We tested the hypothesis that the impacts of ant–pollinator interactions in plant–pollinator systems are dependent on...
Chapter
Full-text available
Formigas são conhecidas por se estruturarem através de mecanismos comportamentais e competitivos. Poucos estudos investigam a coexistência entre as espécies e especialmente como esses animais se distribuem no tempo em fitofisionomias de um mesmo bioma. O Cerrado se caracteriza por ter condições ambientais que refletem em variação de condições micro...
Article
Full-text available
Spatial and temporal limited resource and niche overlap studies have been widely used to explain resource­sharing in community ecology. Furthermore, morphological and behavioral differences among species are relevant to predict how they may share niche availabilities. We evaluated temporal niche overlap and the ability of visitors to collect floral...
Article
Full-text available
A particular research area can be significantly improved when information is systematized in explanatory theories able to generate testable hypotheses. In pollination biology, such systematization contributed to several ecological theories and expanded the understanding of the patterns and processes that originated, maintain, or exclude ecological...
Article
Full-text available
A particular research area can be significantly improved when information is systematized in explanatory theories able to generate testable hypotheses. In pollination biology, such systematization contributed to several ecological theories and expanded the understanding of the patterns and processes that originated, maintain, or exclude ecological...
Article
Full-text available
Extrafloral nectary drinking ants are known as effective plant guards, but some herbivores may circumvent ant attacks by foraging on different plant parts or presenting adaptations to avoid ant predation. Here we experimentally investi-gated the effect of Camponotus blandus on the florivory of the extrafloral nectaried shrub Banisteriopsis malifoli...
Data
In the Brazilian savanna many plant species bear regular associations with patrolling ants that are aggressive towards insect herbivores. However, not only ants but also several species of predatory wasps are attracted to plants due to the extrafloral nectaries (EFNs). Such wasps feed on both herbivores and plant exudates. In this study we describe...
Article
Full-text available
In the Brazilian savanna, myrmecophilous lycaenids are often found in many shrubs feeding on plant reproductive structures while are tended by ants, but only recently the role of both ants and food on the occurrence of lycaenids have received attention. In this study, we investigated the influence of Camponotus blandus (Formicinae) and flower bud a...
Article
Full-text available
In the Brazilian savanna many plant species bear regular associations with patrolling ants that are aggres-sive towards insect herbivores. However, not only ants but also several species of predatory wasps are attracted to plants due to the extrafloral nectaries (EFNs). Such wasps feed on both herbivores and plant exudates. In this study we describ...
Article
Full-text available
Resumo Embora todas as partes da planta ofereçam algum tipo de resistência contra herbívoros, tais como tricomas e nectários extraflorais, os herbívoros são atraídos às folhas jovens, pois possuem menor quantidade de compostos secundários e estruturas de sustentação. Assim, essas folhas se tornam mais palatáveis e nutricionalmente superiores devido...
Article
Full-text available
Pre-dispersal seed predation by specialist insects can affect the performance of plants, and the morphological, morphometrical and physiological traits of fruits/seeds influence the degree of predation. Senna occidentalis is a weed found in degraded pastures and plantations, which is poisonous to cattle and other domestic animals. This study tested...
Article
Full-text available
The presence of aggregates o IA. reticulatum on Bauhinia has been reported, but the insects were mainly attended by ants of the genus Camponotus, and stingless bees were not regularly recorded in aggregations. We observed a colony °f thetreehopperv reticulatum and stingless bees, Trigona branneri, interaction Bauhinia forficata (Fabaceae). Agonisti...

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