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Tatjana Krama

D-Index & Metrics

Ecology and Evolution

D-Index
34
Citations
3762
World Ranking
7703
National Ranking
22

Tatjana Krama 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 Tatjana Krama 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: 109 publications — 25th percentile

25% of scientists in this discipline score the same or lower.

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

Tatjana Krama 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 Tatjana Krama 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: 34 D-Index — 11th percentile

11% of scientists in this discipline score the same or lower.

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

Overview

Tatjana Krama is affiliated with the University of Tartu in Estonia. Their primary research domain falls within Agricultural and Biological Sciences, with a particular focus on Ecological, Evolutionary, and Behavioral studies. This extensive involvement is reflected in their 49 publications across related fields.

Their research encompasses various subfields, including Ecology, Evolution, Behavior and Systematics, Insect Science, Cellular and Molecular Neuroscience, and Genetics. These subfields indicate a multidisciplinary approach, combining biological systems at molecular, organismal, and ecological levels.

Research topics addressed by Tatjana Krama include:

  • Animal Behavior and Reproduction
  • Plant and Animal Studies
  • Avian Ecology and Behavior
  • Neurobiology and Insect Physiology Research
  • Insect and Pesticide Research
  • Evolutionary Game Theory and Cooperation
  • Animal Ecology and Behavior Studies

Frequent publication venues show a pattern of submissions to specialized and interdisciplinary journals, including:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Birds
  • Frontiers in Behavioral Neuroscience
  • Adaptive Human Behavior and Physiology
  • Scientific Reports

Recent notable papers authored or coauthored by Tatjana Krama include:

  • "Women's socioeconomic position in ontogeny is associated with improved immune function and lower stress, but not with height" (2020, Scientific Reports)
  • "Extra-pair paternity explains cooperation in a bird species" (2022, Proceedings of the National Academy of Sciences)
  • "Estimates of Tree Canopy Closure and Basal Area as Proxies for Tree Crown Volume at a Stand Scale" (2020, Forests)
  • "Covid-19: Fat, Obesity, Inflammation, Ethnicity, and Sex Differences" (2020, Pathogens)
  • "Egalitarian mixed-species bird groups enhance winter survival of subordinate group members but only in high-quality forests" (2020, Scientific Reports)

Their collaboration network includes several frequent coauthors, underscoring ongoing research partnerships. Key collaborators are:

  • Indriķis Krams (45 joint publications)
  • Markus J. Rantala (28 joint publications)
  • Priit Jõers (24 joint publications)
  • Didzis Elferts (23 joint publications)
  • Ronalds Krams (19 joint publications)

Best Publications

  • Evidence for the stress-linked immunocompetence handicap hypothesis in humans

    Markus J. Rantala;Fhionna R. Moore;Ilona Skrinda;Tatjana Krama

  • Experimental evidence of reciprocal altruism in the pied flycatcher

    Indrikis Krams;Tatjana Krama;Kristine Igaune;Raivo Mänd

  • A rapid effect of handling on counts of white blood cells in a wintering passerine bird: a more practical measure of stress?

    Dina Cīrule;Tatjana Krama;Tatjana Krama;Jolanta Vrublevska;Markus J. Rantala

  • Adiposity, compared with masculinity, serves as a more valid cue to immunocompetence in human mate choice

    Markus J. Rantala;Vinet Coetzee;Fhionna R. Moore;Ilona Skrinda

  • Linking social complexity and vocal complexity: a parid perspective

    Indrikis Krams;Indrikis Krams;Tatjana Krama;Todd M. Freeberg;Cecilia Kullberg

  • Heterophil/lymphocyte ratios predict the magnitude of humoral immune response to a novel antigen in great tits (Parus major)

    Indrikis Krams;Jolanta Vrublevska;Dina Cirule;Inese Kivleniece

  • Interspecific reciprocity explains mobbing behaviour of the breeding chaffinches, Fringilla coelebs

    Indrikis Krams;Tatjana Krama

  • Cost of mobbing call to breeding pied flycatcher, Ficedula hypoleuca

    Tatjana Krama;Indrikis Krams

  • The increased risk of predation enhances cooperation

    Indrikis Krams;Arnis Bērziņš;Tatjana Krama;Tatjana Krama;David Wheatcroft

  • Group effect in nest defence behaviour of breeding pied flycatchers, Ficedula hypoleuca

    Indrikis Krams;Arnis Bērziņš;Tatjana Krama

  • Fattening strategies of wintering great tits support the optimal body mass hypothesis under conditions of extremely low ambient temperature

    Indrikis Krams;Dina Cirule;Valerija Suraka;Tatjana Krama;Tatjana Krama

  • Predation selects for low resting metabolic rate and consistent individual differences in anti-predator behavior in a beetle

    Indrikis Krams;Indrikis Krams;Inese Kivleniece;Aare Kuusik;Tatjana Krama

  • Effects of food quality on trade-offs among growth, immunity and survival in the greater wax moth Galleria mellonella.

    Indrikis Krams;Indrikis Krams;Sanita Kecko;Katariina Kangassalo;Fhionna R. Moore

  • Microbiome symbionts and diet diversity incur costs on the immune system of insect larvae.

    Indrikis A. Krams;Indrikis A. Krams;Indrikis A. Krams;Sanita Kecko;Priit Jõers;Giedrius Trakimas;Giedrius Trakimas

  • Alarm calls of wintering great tits Parus major: warning of mate, reciprocal altruism or a message to the predator?

    Indrikis Krams;Tatjana Krama;Kristine Igaune

  • Acute infection of avian malaria impairs concentration of haemoglobin and survival in juvenile altricial birds

    I. A. Krams;I. A. Krams;V. Suraka;M. J. Rantala;T. Sepp

  • Eating Disorders: An Evolutionary Psychoneuroimmunological Approach.

    Markus J. Rantala;Severi Luoto;Tatjana Krama;Indrikis Krams;Indrikis Krams

  • Long-lasting mobbing of the pied flycatcher increases the risk of nest predation

    Indrikis Krams;Tatjana Krama;Kristine Igaune;Raivo Mänd

  • Women's socioeconomic position in ontogeny is associated with improved immune function and lower stress, but not with height.

    Anna Rubika;Severi Luoto;Tatjana Krama;Tatjana Krama;Tatjana Krama;Giedrius Trakimas;Giedrius Trakimas

  • Female choice reveals terminal investment in male mealworm beetles, Tenebrio molitor, after a repeated activation of the immune system.

    I Krams;I Krams;J Daukšte;I Kivleniece;T Krama

  • Predation promotes survival of beetles with lower resting metabolic rates

    Indrikis Krams;Indrikis Krams;Indrikis Krams;Inese Kivleniece;Aare Kuusik;Tatjana Krama

  • You mob my owl, I'll mob yours: birds play tit-for-tat game

    Tatjana Krama;Jolanta Vrublevska;Todd M. Freeberg;Cecilia Kullberg

Frequent Co-Authors

Indrikis Krams
Indrikis Krams University of Latvia
Markus J. Rantala
Markus J. Rantala University of Turku
Raivo Mänd
Raivo Mänd University of Tartu
Seppo Rytkönen
Seppo Rytkönen University of Oulu
Markku Orell
Markku Orell University of Oulu
Jorma Ilonen
Jorma Ilonen University of Turku
Reinald Pamplona
Reinald Pamplona University of Lleida
Howard T. Jacobs
Howard T. Jacobs Tampere University
Hanna Kokko
Hanna Kokko Johannes Gutenberg University of Mainz
Jeffrey R. Lucas
Jeffrey R. Lucas Purdue University West Lafayette

External Links

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Related Online Degrees & Career Pathways

If you’re interested in Ecology and Evolution, a range of online math degree programs can provide a valuable foundation in data analysis, modeling, and statistics—skills crucial for modern ecological research. For students with a creative or design-focused mindset, exploring an online graphic design degree can help you communicate scientific findings visually through infographics, scientific illustrations, and interactive media.

Those interested in the intersection of the built environment and natural sciences may want to consider naab-accredited online architecture degrees. These programs can prepare you to design sustainable spaces that account for ecological principles. Additionally, the skills and knowledge gained from studying ecology and evolution are relevant for interdisciplinary careers, such as what is an slp in education, where understanding communication and environmental context can be critical.

By exploring these related online degrees, students can access flexible pathways to careers in research, education, conservation, and design, all while building expertise that directly supports sustainability and environmental stewardship.

Best Scientists Citing Tatjana Krama

Indrikis Krams

Indrikis Krams

University of Latvia

Publications: 59

Markus J. Rantala

Markus J. Rantala

University of Turku

Publications: 33

Benedict C. Jones

Benedict C. Jones

University of Strathclyde

Publications: 25

Lisa M. DeBruine

Lisa M. DeBruine

University of Glasgow

Publications: 20

Barnaby J. W. Dixson

Barnaby J. W. Dixson

University of Queensland

Publications: 19

Robert D. Magrath

Robert D. Magrath

Australian National University

Publications: 15

David A. Puts

David A. Puts

Pennsylvania State University

Publications: 14

David I. Perrett

David I. Perrett

University of St Andrews

Publications: 13

Kathryn E. Sieving

Kathryn E. Sieving

University of Florida

Publications: 13

Damien R. Farine

Damien R. Farine

University of Zurich

Publications: 12

Thomas Bugnyar

Thomas Bugnyar

University of Vienna

Publications: 12

Michael Griesser

Michael Griesser

University of Konstanz

Publications: 11

Michael Taborsky

Michael Taborsky

University of Bern

Publications: 10

Alex Córdoba-Aguilar

Alex Córdoba-Aguilar

National Autonomous University of Mexico

Publications: 9

Christoph Randler

Christoph Randler

University of Tübingen

Publications: 9

David R. Feinberg

David R. Feinberg

McMaster University

Publications: 9

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