World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
59
Citations
11083
World Ranking
2460
National Ranking
36

Ivan Sazima publication distribution in Ecology and Evolution in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Ecology and Evolution in 2026. The highlighted bar marks where Ivan Sazima sits on this spectrum.

37–41 publications: 2 scientists 42–46 publications: 9 scientists 47–51 publications: 10 scientists 52–56 publications: 31 scientists 57–61 publications: 56 scientists 62–66 publications: 91 scientists 67–71 publications: 92 scientists 72–76 publications: 127 scientists 77–81 publications: 173 scientists 82–86 publications: 236 scientists 87–91 publications: 227 scientists 92–96 publications: 240 scientists 97–101 publications: 333 scientists 102–106 publications: 280 scientists 107–111 publications: 300 scientists 112–116 publications: 285 scientists 117–121 publications: 305 scientists 122–126 publications: 287 scientists 127–131 publications: 278 scientists 132–136 publications: 289 scientists 137–141 publications: 273 scientists 142–146 publications: 262 scientists 147–151 publications: 246 scientists 152–156 publications: 235 scientists 157–161 publications: 205 scientists 162–166 publications: 199 scientists 167–171 publications: 174 scientists 172–176 publications: 164 scientists 177–181 publications: 173 scientists 182–186 publications: 189 scientists 187–191 publications: 170 scientists 192–196 publications: 139 scientists 197–201 publications: 128 scientists 202–206 publications: 117 scientists 207–211 publications: 115 scientists 212–216 publications: 107 scientists 217–221 publications: 124 scientists 222–226 publications: 81 scientists 227–231 publications: 82 scientists 232–236 publications: 85 scientists 237–241 publications: 75 scientists 242–246 publications: 66 scientists 247–251 publications: 81 scientists 252–256 publications: 69 scientists 257–261 publications: 70 scientists 262–266 publications: 55 scientists 267–271 publications: 64 scientists 272–276 publications: 49 scientists 277–281 publications: 48 scientists 282–286 publications: 44 scientists 287–291 publications: 45 scientists 292–296 publications: 36 scientists 297–301 publications: 39 scientists 302–306 publications: 38 scientists 307–311 publications: 30 scientists 312–316 publications: 34 scientists 317–321 publications: 25 scientists 322–326 publications: 22 scientists 327–331 publications: 28 scientists 332–336 publications: 30 scientists 337–341 publications: 22 scientists 342–346 publications: 30 scientists 347–351 publications: 26 scientists 352–356 publications: 22 scientists 357–361 publications: 29 scientists 362–366 publications: 21 scientists 367–371 publications: 12 scientists 372–376 publications: 18 scientists 377–381 publications: 17 scientists 382–386 publications: 13 scientists 387–391 publications: 21 scientists 392–396 publications: 13 scientists 397–401 publications: 10 scientists 402–406 publications: 15 scientists 407–411 publications: 8 scientists 412–416 publications: 9 scientists 417–421 publications: 8 scientists 422–426 publications: 4 scientists 427–431 publications: 10 scientists 432–436 publications: 10 scientists 437–441 publications: 5 scientists 442–446 publications: 4 scientists 447–451 publications: 10 scientists 452–456 publications: 2 scientists 457–461 publications: 4 scientists 462–466 publications: 7 scientists 467–471 publications: 7 scientists 472–476 publications: 6 scientists 477–481 publications: 6 scientists 482–486 publications: 3 scientists 487–491 publications: 3 scientists 492–496 publications: 4 scientists 497–501 publications: 4 scientists 502–506 publications: 8 scientists 507–511 publications: 5 scientists 512–516 publications: 4 scientists 517–521 publications: 5 scientists 522–526 publications: 4 scientists 527–530 publications: 5 scientists 531+ publications: 100 scientists
37 publications 531+

This scientist: 293 publications — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 531 publications or more.

Ivan Sazima D-index placement in Ecology and Evolution in 2026

The chart shows the D-index (discipline H-index) distribution of Ecology and Evolution scientists ranked by Research.com in 2026. The highlighted bar marks where Ivan Sazima sits on this spectrum.

30 D-Index: 95 scientists 31 D-Index: 123 scientists 32 D-Index: 191 scientists 33 D-Index: 245 scientists 34 D-Index: 252 scientists 35 D-Index: 244 scientists 36 D-Index: 249 scientists 37 D-Index: 244 scientists 38 D-Index: 254 scientists 39 D-Index: 254 scientists 40 D-Index: 280 scientists 41 D-Index: 274 scientists 42 D-Index: 266 scientists 43 D-Index: 233 scientists 44 D-Index: 248 scientists 45 D-Index: 208 scientists 46 D-Index: 201 scientists 47 D-Index: 213 scientists 48 D-Index: 207 scientists 49 D-Index: 172 scientists 50 D-Index: 209 scientists 51 D-Index: 199 scientists 52 D-Index: 153 scientists 53 D-Index: 169 scientists 54 D-Index: 163 scientists 55 D-Index: 148 scientists 56 D-Index: 120 scientists 57 D-Index: 146 scientists 58 D-Index: 137 scientists 59 D-Index: 140 scientists 60 D-Index: 104 scientists 61 D-Index: 119 scientists 62 D-Index: 118 scientists 63 D-Index: 99 scientists 64 D-Index: 77 scientists 65 D-Index: 100 scientists 66 D-Index: 86 scientists 67 D-Index: 83 scientists 68 D-Index: 75 scientists 69 D-Index: 94 scientists 70 D-Index: 57 scientists 71 D-Index: 68 scientists 72 D-Index: 59 scientists 73 D-Index: 63 scientists 74 D-Index: 66 scientists 75 D-Index: 60 scientists 76 D-Index: 42 scientists 77 D-Index: 49 scientists 78 D-Index: 39 scientists 79 D-Index: 37 scientists 80 D-Index: 43 scientists 81 D-Index: 41 scientists 82 D-Index: 45 scientists 83 D-Index: 34 scientists 84 D-Index: 40 scientists 85 D-Index: 35 scientists 86 D-Index: 55 scientists 87 D-Index: 24 scientists 88 D-Index: 24 scientists 89 D-Index: 30 scientists 90 D-Index: 23 scientists 91 D-Index: 25 scientists 92 D-Index: 27 scientists 93 D-Index: 27 scientists 94 D-Index: 13 scientists 95 D-Index: 23 scientists 96 D-Index: 12 scientists 97 D-Index: 14 scientists 98 D-Index: 19 scientists 99 D-Index: 16 scientists 100 D-Index: 14 scientists 101 D-Index: 5 scientists 102 D-Index: 21 scientists 103 D-Index: 16 scientists 104 D-Index: 10 scientists 105 D-Index: 7 scientists 106 D-Index: 7 scientists 107 D-Index: 7 scientists 108 D-Index: 6 scientists 109 D-Index: 9 scientists 110 D-Index: 11 scientists 111 D-Index: 12 scientists 112 D-Index: 9 scientists 113 D-Index: 7 scientists 114 D-Index: 3 scientists 115 D-Index: 8 scientists 116 D-Index: 5 scientists 117 D-Index: 11 scientists 118 D-Index: 4 scientists 119 D-Index: 2 scientists 120 D-Index: 5 scientists 121+ D-Index: 100 scientists
30 D-Index 121+

This scientist: 59 D-Index — 72nd percentile

72% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 121 D-Index or more.

Overview

Ivan Sazima is affiliated with the State University of Campinas in Brazil. Their work primarily centers on environmental science and agricultural and biological sciences, with a strong focus on ecology and related subfields. The main areas of study include ecology, evolution, behavior and systematics, nature and landscape conservation, global and planetary change, and plant science.

Their research spans several key topics, including plant and animal studies, ecology and vegetation dynamics, plant parasitism and resistance, amphibian and reptile biology, wildlife ecology and conservation, marine and fisheries research, and avian ecology and behavior.

Ivan Sazima has contributed to multiple publication venues. Frequent outlets for their research include:

  • Ornithology Research
  • Food Webs
  • Ichthyological Research
  • Biota Neotropica
  • Functional Ecology

Their recent papers demonstrate a range of ecological interests. Notable publications include:

  • "Ecological mechanisms explaining interactions within plant-hummingbird networks: morphological matching increases towards lower latitudes," 2020, Proceedings of the Royal Society B Biological Sciences
  • "The influence of biogeographical and evolutionary histories on morphological trait-matching and resource specialization in mutualistic hummingbird-plant networks," 2021, Functional Ecology
  • "The moving gardens: reef fishes grazing, cleaning, and following green turtles in SW Atlantic," 2021, Acervo Digital da Universidade Estadual Paulista (Universidade Estadual Paulista)
  • "Plankton-feeding aggregation and occasional cleaning by adult butterflyfish, Chaetodon striatus (Chaetodontidae), in Southwestern Atlantic," 2022, UNESP Institutional Repository (São Paulo State University)
  • "Patterns of taxonomic and functional diversity in the global cleaner reef fish fauna," 2021, Journal of Biogeography

The collaborative nature of their work is reflected in frequent coauthorship with several researchers. The most frequent collaborators are:

  • Marlies Sazima
  • Pietro K. Maruyama
  • Jeferson Vizentin-Bugoni
  • Andréa Cardoso Araujo
  • Oscar Humberto Marín-Gómez

Best Publications

  • Hummingbird-Pollinated Floras at Three Atlantic Forest Sites1

    Silvana Buzato;Marlies Sazima;Ivan Sazima

  • Ecological and phylogenetic correlates of feeding habits in neotropical pitvipers of the genus Bothrops

    Marcio Roberto Costa Martins;Otávio Augusto Vuolo Marques;Ivan Sazima

  • Amphibian Declines in Brazil: An Overview1

    Paula Cabral Eterovick;Ana Carolina Oliveira De Queiroz Carnaval;Diva Maria Borges‐Nojosa;Débora Leite Silvano

  • Similarities in feeding behaviour between some marine and freshwater fishes in two tropical communities

    I. Sazima

  • Behavioural defences of anurans: an overview

    L. F. Toledo;I. Sazima;Celio Fernando Baptista Haddad

  • South‐western Atlantic reef fishes: Zoogeographical patterns and ecological drivers reveal a secondary biodiversity centre in the Atlantic Ocean

    Hudson T. Pinheiro;Hudson T. Pinheiro;Luiz A. Rocha;Luiz A. Rocha;Raphael M. Macieira;Alfredo Carvalho-Filho

  • Bat-pollinated Flower Assemblages and Bat Visitors at Two Atlantic Forest Sites in Brazil

    Marlies Sazima;Silvana Buzato;Ivan Sazima

  • An Assemblage of Hummingbird-pollinated Flowers in a Montane Forest in Southeastern Brazil

    I. Sazima;Silvana Buzato;Marlies Sazima

  • Structure of an anuran community in a montane meadow in southeastern Brazil: effects of seasonality, habitat, and predation

    Ivan Sazima;Paula Cabral Eterovick

  • The snake assemblage of the Pantanal at Poconé, Western Brazil: Faunal composition and ecological summary

    Christine Strussmann;Ivan Sazima

  • Underwater observations of piranhas in western Brazil

    Ivan Sazima;Francisco A. Machado

  • Specialization in Plant-Hummingbird Networks Is Associated with Species Richness, Contemporary Precipitation and Quaternary Climate-Change Velocity

    Bo Dalsgaard;Bo Dalsgaard;Bo Dalsgaard;Else Magård;Jon Fjeldså;Ana M. Martín González

  • Bat Pollination of the Passion Flower, Passiflora mucronata, in Southeastern Brazil

    Marlies Sazima;Ivan Sazima

  • Predators of the nest building gladiator frog, Hyla faber, in southeastern Brazil

    Ivan Sazima;Marcio Martins;Silvia G. Egler

  • Marine Ornamental Trade in Brazil

    S. R. Floeter;I. Sazima

  • Scale-eating in characoids and other fishes

    Ivan Sazima

  • Fish Biodiversity of the Vitória-Trindade Seamount Chain, Southwestern Atlantic: An Updated Database

    Hudson T. Pinheiro;Eric Mazzei;Rodrigo L. Moura;Gilberto M. Amado-Filho

  • The reef fish assemblage of the Laje de Santos Marine State Park, Southwestern Atlantic: annotated checklist with comments on abundance, distribution, trophic structure, symbiotic associations, and conservation

    Osmar J. Luiz;Alfredo Carvalho-Filho;Carlos E. L. Ferreira;Sergio R. Floeter

  • BREEDING-BEHAVIOR OF THE PUMPKIN TOADLET, BRACHYCEPHALUS-EPHIPPIUM (BRACHYCEPHALIDAE)

    Jose P. Pombal;Ivan Sazima;Celio F. B. Haddad

  • Bat pollination of Encholirium glaziovii , a terrestrial bromeliad

    Ivan Sazima;Stefan Vogel;Marlies Sazima

  • The nested structure of marine cleaning symbiosis: is it like flowers and bees?

    Paulo R Guimarães;Cristina Sazima;Sérgio Furtado dos Reis;Ivan Sazima

Frequent Co-Authors

Marlies Sazima
Marlies Sazima State University of Campinas
Sergio R. Floeter
Sergio R. Floeter Universidade Federal de Santa Catarina
Marcio Martins
Marcio Martins Universidade de São Paulo
Rodrigo L. Moura
Rodrigo L. Moura Federal University of Rio de Janeiro
Jansen Zuanon
Jansen Zuanon National Institute of Amazonian Research
Carlos E. L. Ferreira
Carlos E. L. Ferreira Fluminense Federal University
Bo Dalsgaard
Bo Dalsgaard University of Copenhagen
Ronaldo B. Francini-Filho
Ronaldo B. Francini-Filho Universidade de São Paulo
Célio F. B. Haddad
Célio F. B. Haddad Sao Paulo State University
Carsten Rahbek
Carsten Rahbek University of Copenhagen

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Related Online Degrees & Career Pathways

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If you're transitioning into communication sciences from a non-related field, you can take advantage of speech pathology bridge programs tailored for non-SLP majors. These online degrees and pathways open doors to diverse, meaningful ecological and scientific careers.

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