A5048705902- Plant and animal studies
- Plant Parasitism and Resistance
- Ecology and Vegetation Dynamics Studies
- Insect and Arachnid Ecology and Behavior
- Species Distribution and Climate Change
- Insect and Pesticide Research
- Animal and Plant Science Education
- Insect-Plant Interactions and Control
- Plant Diversity and Evolution
- Fern and Epiphyte Biology
- Land Use and Ecosystem Services
- Plant Reproductive Biology
- Hymenoptera taxonomy and phylogeny
- Animal Ecology and Behavior Studies
- Animal Behavior and Reproduction
- Wildlife-Road Interactions and Conservation
- Conservation, Biodiversity, and Resource Management
- Avian ecology and behavior
- Climate variability and models
- Urban Green Space and Health
- Plant and soil sciences
- Dengue and Mosquito Control Research
- Environmental Conservation and Management
- Climate Change Communication and Perception
- Agricultural and Food Sciences
Universidade Federal de Minas Gerais
2019-2025
Universidade Federal de Uberlândia
2009-2023
Universidade Federal de Mato Grosso do Sul
2023
Universidade Estadual de Campinas (UNICAMP)
2012-2021
Google (United States)
2019
Natural History Museum Aarhus
2014-2018
University of Copenhagen
2014-2018
Understanding the relative importance of multiple processes on structuring species interactions within communities is one major challenges in ecology. Here, we evaluated abundance and forbidden links a hummingbird-plant interaction network from Atlantic rainforest Brazil. Our results show that models incorporating phenological overlapping morphological matches were more accurate predicting observed than considering abundance. This means links, by imposing constraints interactions, play...
Abstract Complex networks of species interactions might be determined by traits but also simple chance meetings governed abundances. Although the idea that structure mutualistic is appealing, most studies have found abundance to a major structuring mechanism underlying interaction frequencies. With well‐resolved plant–hummingbird network from Neotropical savanna in Brazil, we asked whether morphology, phenology, nectar availability and habitat occupancy and/or best predicted frequency...
Latitudinal patterns of biodiversity have been studied for centuries, but it is only during the last decades that species interaction networks used to examine proposed latitudinal gradient biotic specialization. These studies given idiosyncratic results, which may either be because genuine biological differences between systems, different concepts and scales quantify specialization or methodological approaches compare were inappropriate. Here we carefully using a global dataset avian...
Abstract The temporal dynamics of plant phenology and pollinator abundance across seasons should influence the structure plant–pollinator interaction networks. Nevertheless, such are seldom considered, especially for diverse tropical Here, we evaluated variation four networks in two seasonal ecosystems Central Brazil (Cerrado Pantanal). Data were gathered on a monthly basis over 1 year each network. We characterized shifts interactions, using temporally discrete predicted that greater floral...
Abstract Aim To investigate the association between hummingbird–plant network structure and species richness, phylogenetic signal on species' interaction pattern, insularity historical current climate. Location Fifty‐four communities along a c . 10,000 km latitudinal gradient across A mericas (39° N –32° S ), ranging from sea level to 3700 m a.s.l., located mainland islands covering wide range of climate regimes. Methods We measured specialization modularity in mutualistic plant–hummingbird...
Abstract Aim Among the world's three major nectar‐feeding bird taxa, hummingbirds are most phenotypically specialized for nectarivory, followed by sunbirds, while honeyeaters least taxa. We tested whether this phenotypic specialization gradient is also found in interaction patterns with their floral resources. Location Americas, Africa, Asia and Oceania/Australia. Methods compiled networks between birds resources 79 hummingbird, nine sunbird 33 honeyeater communities. Interaction was...
Virtually all empirical ecological interaction networks to some extent suffer from undersampling. However, how limitations imposed by sampling incompleteness affect our understanding of is still poorly explored, which may hinder further advances in the field. Here, we use a plant-hummingbird network with unprecedented effort (2716 h focal observations) Atlantic Rainforest Brazil, investigate affects description structure (i.e. widely used metrics) and relative importance distinct processes...
Abstract Species are entangled within communities by their interactions in such a manner that local extinction may unchain coextinction cascades and impact community dynamics stability. Despite increasing attention, simulation models to estimate the robustness of interaction networks largely neglect important role rewiring, is, ability species switch partners. Here we propose new method incorporate potential replace lost partners into widely used model network robustness. In this model,...
Interactions between species are influenced by different ecological mechanisms, such as morphological matching, phenological overlap and abundances. How these mechanisms explain interaction frequencies across environmental gradients remains poorly understood. Consequently, we also know little about the that drive geographical patterns in network structure, complementary specialization modularity. Here, use data on morphologies, phenologies abundances to hummingbirds plants at a large scale....
Abstract Functional traits can determine pairwise species interactions, such as those between plants and pollinators. However, the effects of biogeography evolutionary history on trait‐matching trait‐mediated resource specialization remain poorly understood. We compiled a database 93 mutualistic hummingbird–plant networks (including 181 hummingbird 1,256 plant species), complemented by morphological measures bill floral corolla length. divided hummingbirds into their principal clades used...
Abstract Aim To investigate the role of alien plants in mutualistic plant–hummingbird networks, assessing importance species traits, floral abundance and insularity on plant integration. Location Mainland insular Americas. Methods We used species‐level network indices to assess 21 quantitative networks where occur. then evaluated whether including previous adaptations bird pollination, predict these roles. Additionally, for a subset which data were available, we tested this relates Finally,...
Plant species within communities may overlap in pollinators' use and influence visitation patterns of shared pollinators, potentially engaging indirect interactions (e.g., facilitation or competition). While several studies have explored the mechanisms regulating insect-pollination networks, there is a lack on bird-pollination systems, particularly species-rich tropical areas. Here, we evaluated if phenotypic similarity, resource availability (floral abundance), evolutionary relatedness...
Woody plants host diverse communities of associated organisms, including wood-inhabiting fungi. In this group, effects on species richness and interaction network structure are not well understood, especially at large geographical scales. We investigated ecological, historical evolutionary determinants fungal modularity, that is, subcommunity structure, across woody hosts in Denmark, using a citizen science data set comprising > 80 000 records 1000 91 genera plants. Fungal was positively...
Abstract Aim Species interaction networks are known to vary in structure over large spatial scales. We investigated the hypothesis that environmental factors affect network by influencing functional diversity of ecological communities. Notably, we expect more functionally diverse communities form with a higher degree niche partitioning. Location: Americas. Time period: Current. Major taxa studied: Hummingbirds and their nectar plants. Methods used dataset comprising 74 quantitative...
Abundant pollinators are often more generalised than rare pollinators. This could be because abundant species have chance encounters with potential interaction partners. On the other hand, a competitive advantage over specialists, leading to higher abundance. Determining direction of abundance–generalisation relationship is therefore ‘chicken‐and‐egg’ dilemma. Here we determine between abundance and generalisation in plant–hummingbird pollination networks across Americas. We find evidence...
Summary When describing plant–animal interaction networks, sampling can be performed using plant‐ or animal‐centred approaches. Despite known effects of on network structure, how samplings affect the estimates β‐diversity across networks is still unresolved. We investigated method affects assessment interactions, turnover and rewiring. contrasted methods applied to pollination habitats in a heterogeneous tropical landscape, Pantanal Wetlands. also asked whether plant traits influence...