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GUIMARÃES LAB
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Photo by Mathias M. Pires
Here you find information about our current lab members. After almost 15 years at USP I was lucky to have the opportunity to work with a special group of people. Information on former lab members is available here 

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Our lab also host students as trainees, please click here.
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Paulo R. Guimarães Jr. (Miúdo)
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Full Professor at the Departamento de Ecologia, IB - USP
Interests: how ecological networks shape and are shaped by ecological and coevolutionary processes. I explore this problem by integrating data and natural history of ecological interactions, network science, and mathematical modelling.

Selected publications:

​Guimarães, P. R. 2020. The structure of ecological networks across levels of organization. Annual Review of Ecology, Evolution, and Systematics 51:433-460.

Guimarães, P.R., M. M. Pires, P. Jordano, J. Bascompte, J. N. Thompson. 2017. Indirect effects drive coevolution in mutualistic networks. Nature 550: 511–514.

Guimarães, P.R., P. Jordano, J. N. Thompson. 2011. Evolution and coevolution in mutualistic networks. Ecology Letters 14: 877-885 [PDF]. See also the article in Science highlighting this study: [Editors' Choice].  

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Postdocs
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Kate Maia
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Postdoc 
Interests: structural transitions in ecological networks
​Fellowship: FAPESP

Selected publications:

Maia, K. P., F. M. D. Marquitti, I. P. Vaughan, J. Memmott, R. L. G., Raimundo. 2021. Interaction generalisation and demographic feedbacks drive the resilience of plant-insect networks to extinctions. Journal of Animal Ecology. (in press).

Maia, K. P., I. P. Vaughan, J Memmott. 2019. Plant species roles in pollination networks: an experimental approach. Oikos 128:1446-1457.

Maia, K. P., C. Rasmussen, J. M. Olesen, P. R. Guimarães. 2019. Does the sociality of pollinators shape the organisation of pollination networks? Oikos  128: 741-752.​​
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Caroline Dracxler
​Postdoc 
Interests: networks of antagonisms and mutualisms
​Fellowship: FAPESP

Selected publications:

Dracxler, C. M. & Kissling, W. D. 2021. The mutualism–antagonism continuum in Neotropical palm–frugivore interactions: from interaction outcomes to ecosystem dynamics. Biological Reviews (early view)

Mittelman, P., Dracxler C. M., Santos-Coutinho, P. R. O. & Pires, A. S. 2021. Sowing forests: a synthesis of seed dispersal and predation by agoutis and their influence on plant communities. Biological Reviews 96: 2425-2445.
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Erika M. Santana
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Postdoc  (co-supervised by Carlos J. Melián, EAWAG, Switzerland)
Interests: interface between social and ecological networks
​Fellowship: Schweizerische Nationalfonds (SNF, Switzerland) e CNPq
Website
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Andrés Arguelles
Post-doc (co-supervised by Melanie Roy, France)
Interests:
 fungi and ecological networks
​Fellowship: FAPESP/CNPq​/NEFINEO

Selected publications

Argüelles-Moyao, A., Benítez, M., Escalante, A. E., & Garibay-Orijel, R. (2022). Unipartite and bipartite mycorrhizal networks of Abies religiosa forests: Incorporating network theory into applied ecology of conifer species and forest management. Ecological Complexity, 50, 101002.

Argüelles-Moyao, A., & Garibay-Orijel, R. (2018). Ectomycorrhizal fungal communities in high mountain conifer forests in central Mexico and their potential use in the assisted migration of Abies religiosa. Mycorrhiza, 28(5-6), 509-521.

Argüelles-Moyao, A., Garibay-Orijel, R., Márquez-Valdelamar, L. M., & Arellano-Torres, E. (2017). Clavulina-Membranomyces is the most important lineage within the highly diverse ectomycorrhizal fungal community of Abies religiosa. Mycorrhiza, 27, 53-65.
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Grad Students
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Andrés Rojas
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PhD student - Ecology (USP)
MBA student - Data Science e Analytics (USP/ESALQ)
Interests:
 networks of competitors
​Fellowship: CAPES
Co-supervisor: Paulinha Assis
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Publications
Rojas, A., D. G. Muniz, D. Solano-Brenes, G. Machado. 2021.  Nest-site selection in a neotropical arachnid with exclusive male care: proximate cues and adaptive meaning. Ethology (in press).

​Rojas, A., D. Solano-Brenes, D. G. Muniz, G. Machado. 2019. Gone with the rain: negative effects of rainfall on male reproductive success in a nest-building arachnid. Behavioral Ecology 30: 1145-1156. 
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Lucas Nascimento (Taio)
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PhD student - Ecology (USP)
MBA student - Data Science e Analytics (USP/ESALQ)
Interests: frugivory and the evolution of color patterns in birds
Fellowship: FAPESP

​Selected publications:
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​Nascimento, L. F., P. R. Guimarães, R. E. Onstein, W. D. Kissling, M. M. Pires. 2020. Associated evolution of fruit size, fruit color and spines in Neotropical palms. Journal of Evolutionary Biology 33: 858-868.
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Currently, Lucas is a visiting student at Daniel Kissling's Lab at Universiteit van Amsterdam
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​​​Pâmela Friedemann
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PhD student - Ecology (USP)
Interests: individual-based networks of plants and seed dispersers
​Fellowship: CAPES

More about her work in our lab:

Friedemann P., M. C. Cortes, E. R. Castro, M. Galetti, P.  Jordano, P. R. Guimarães. 2022. The individual-based network structure of palm-seed dispersers is explained by a rainforest gradient. Oikos 2022: 08384.
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Undergrad Students
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Daniela Gomes
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Undergrad student - Biological Sciences (USP)
Interests: super-generalists & network dynamics
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Stefani Pires Caldeira
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Undergrad student - Biological Sciences (USP)
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Augusto Carvalho
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Undergrad student - Biological Sciences (USP)
Co-supervised student (supervisor: Marcio Martins)
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Technicians
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​Daniela Coelho (Dani)
Lab Technician​ (2023 - FAPESP)

PhD in Ecology - USP (2022)
Research: Network structure of snake-resource interactions
​Fellowship: CAPES (PhD)

More about her work in our lab 
Pinto-Coelho, D., M. Martins, and P. R. Guimarães. Network analyses reveal the role of large snakes in connecting feeding guilds in a species-rich Amazonian snake community. Ecology and Evolution (in press).​
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Bruno Melati
Lab Technician​ (2023 - FAPESP)
"Special Guest Grad Student" (2017-2018)

Research: Ant-plant interactions


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Special Guest Members
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Alice
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Alice joined the lab in 2012.

Alice is interested in butterflies, toucans, flowers, hummingbirds, sacis, arts and science (especially Albert Einstein's ideas).  She is now testing predictions of entropy-based theories, using her bedroom as studied system.
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Marina
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Marina joined the lab in 2015.

Marina is interested in whales, mermaids, perching birds, Dengo's chocolate, turtles, giraffes, and especially sloths (what makes me pround). She is now applying Chaos Theory to the dynamics of toy models.
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Artwork by Rodolfo G. Batista 
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