Mgr. Kateřina Sam, Ph.D.

Maiden:Tvardíková

Job Position: Head of department - Department of Ecology , Head of Laboratory - Laboratory of Multitrophic Interactions

Contact details

Phone: +420 38 777 5279
E-mail: katerina.sam.cz@gmail.com
Web: https://multitrophicinteractions.blog/

Description

I study how bird ecology, trophic interactions, and predator–prey dynamics shape insect communities and ecological processes across forest elevational gradients, with a focus on diet-driven energetics and plant–herbivore signaling.

I focus on:

  • Ecology of birds along elevational gradients of tropical mountains, their influence on insect communities, and various processes occurring in tropical as well as temperate forests.
  • Effects of diet on bird fitness and metabolism, and the energy flows between the environment, food resources, and birds.
  • Trophic relationships between insectivorous birds and insects, including the ability of birds to respond to volatile compounds released by plants as a reaction to herbivore damage.
  • Predation pressure (from birds, bats, and other insectivorous organisms) on herbivorous insects in tropical forests.

Publications
Total found: 120 records
Hazell R.J., Kaina G.S., Sam K., Souto-Vilarós D., Koagouw W., Novotný V., Peck M.R., Stewart A. (2025) Fruit Traits Reflect Adaptation to Dispersers Along a Tropical Elevational Gradient. Ecology and Evolution 15 : article number: e72511.
DOI: 10.1002/ece3.72511
Kollross J., Ré Jorge L., Pawlik J., Sam K. (2025) Nutrient addition, but not vertebrate predator exclusion, shapes arthropod communities and herbivory in a temperate forest. Ecological Entomology Early View : DOI: 10.1111/een.70038
Korejs K., Koane B., Jeppy S., Ré Jorge L., Novotný V., Sam K. (2025) Feeding Specialisation Shapes Avian Functional Diversity Along a Tropical Rainforest Elevational Gradient. Journal of Biogeography 52 : article number: e15103.
DOI: 10.1111/jbi.15103
Korejs K., Koane B., Jeppy S., Sam L., Ré Jorge L., Novotný V., Sam K. (2025) Comparing impacts of fragmentation on bird functional and phylogenetic diversity in primary and secondary rainforests. Journal of Applied Ecology 62 : 1674-1684.
DOI: 10.1111/1365-2664.70083
Korejs K., Koane B., Jeppy S., Sam L., Sam K. (2025) Bird species richness, assemblage density, and feeding guild composition in human-modified lowland rainforests of Papua New Guinea. Journal of Field Ornithology 96 : article number: 5.
DOI: 10.5751/JFO-00602-960105
Maraia H., Ré Jorge L., Wagia H., Sam K. (2025) Effect of seasonality, climate, and leaf traits on insect herbivory and arthropod dynamics across a vertical forest stratification in Papua New Guinea's lowland rainforest. Journal of Tropical Ecology 41 : article number: e24.
DOI: 10.1017/S0266467425100163
Mononen T., Hardwick B., Alcobia S., Barrett A., Blagoev G.A., Boyer S., Gonçalves P., Gottsberger B., Groner E., Ho C.C.Y., Houska Tahadlová M., Kaus-Thiel A., et al., Mrázová A., Pentinsaari M., Pinder A., et al., Sam K., Santos-Reis M., Sire L., Sivault E., Stoll S., et al., Vlasatá T., Ovaskainen O., total 32 authors (2025) An active ensemble classifier for detecting animal sequences from global camera trap data. Methods in Ecology and Evolution 16 : 2500-2516.
DOI: 10.1111/2041-210X.70144
Mrázová A., Sam K., Hilker M., Rubene D., Amo L., Mäntylä E. (2025) Feathered noses: methodological insights into understanding avian olfaction and foraging. Animal Behaviour 222 : article number_ 123075.
DOI: 10.1016/j.anbehav.2025.123075
Quiroga G., Vázquez-González C., Rodríguez V.M., Lago-Núñez B., Van den Bossche A., De Frenne P., Gossner M.M., Stenberg J.A., Hylander K., Tack A.J.M., Bjørn M.C., Sam K., Dobrosavljević J., Milanović S., Bonnard O., Castagneyrol B., Covelo F., Abdala-Roberts L., Moreira X. (2025) Bottom-up and top-down drivers influence urbanization effects on insect herbivory in oaks. Oikos Early View : article number: e11751.
DOI: 10.1002/oik.11751
Somervuo P., Roslin T., Fisher B., Hardwick B., Kerdraon D., Raharinjanahary D., Rajoelison E.T., Lauha P., Griem L., Lehikoinen P., et al., Freiberga I., Farrell A., Ferland G., et al., Houska Tahadlová M., Hänninen J., Höglund L., et al., Mrázová A., Mteshane S., Mungai N.W., et al., Sam K., Santos D., Santos-Reis M., et al., Sivault E., Smart J., Smerczyński I., et al., Young A.B., Övergaard R., Ovaskainen O., total 250 authors (2025) Human contributions to global soundscapes are less predictable than the acoustic rhythms of wildlife. Nature Ecology & Evolution 9 : 1585-1598.
DOI: 10.1038/s41559-025-02786-5
Valdés-Correcher E., Kadiri Y., Bourdin A., Mrázová A., Bălăcenoiu F., Branco M., Bogdziewicz M., Bjørn M.C., Damestoy T., Dobrosavljević J., Faticov M., et al., Mäntylä E., Moreira K., Piotti A., et al., Sam K., Sobral M., Tack A.J.M., Varela Z., Castagneyrol B. (2025) Effects of climate on leaf phenolics, insect herbivory, and their relationship in pedunculate oak (Quercus robur) across its geographic range in Europe. Oecologia 207 : article number: 61.
DOI: 10.1007/s00442-025-05696-2
Finnie S., Butterill P. T., Novotný V., Redmond C. M., Ré Jorge L., Abe T., Lamarre G., Maicher V., Sam K. (2024) Vertical stratification and defensive traits of caterpillars against parasitoids in a lowland tropical forest in Cameroon. Oecologia 204 : 915-930.
DOI: 10.1007/s00442-024-05542-x
Ismaeel A., Tai A.P.K., Santos E.G., Maraia H., Aalto I., Altman J., Doležal J., Lembrechts J.J., Camargo J.L., Aalto J., Sam K., et al., Plichta R., Abera T., Maeda E.E. (2024) Patterns of tropical forest understory temperatures. Nature Communications 15 : article number: 549.
DOI: 10.1038/s41467-024-44734-0
Maraia H., Charles-Dominique T., Tomlinson K.W., Staver A.C., Ré Jorge L., Gélin U., Jančúchová Lásková J., Sam L., Hattas D., Freiberga I., Sam K. (2024) Substantial Insect Herbivory in a South African Savanna-Forest Mosaic: A Neglected Topic. Ecology and Evolution 14 : article number: e70466.
DOI: 10.1002/ece3.70466
Sam K., Ré Jorge L., Koane B., Hazell R.J., Shearman P.L., Novotný V. (2024) Reorganization of bird communities along a rainforest elevation gradient during a strong El Niño event in Papua New Guinea. Ecology and Evolution 14 : article number: e10955.
DOI: 10.1002/ece3.10955
Schillé L., Valdés-Correcher E., Archaux F., Balacenoiu F., Bjørn M. C., Bogdziewicz M., Boivin T., Branco M., et al., Mallick S., Mäntylä E., Mårell A., Milanović S., Molnár M., Moreira X., Moser V., Mrázová A., et al., Sam K., Sedikhin N.V., Shabarova T., Tack A.J.M., Thomas R., et al., Varela Z., Barbaro L., Castagneyrol B. (2024) Decomposing drivers in avian insectivory: Large-scale effects of climate, habitat and bird diversity. Journal of Biogeography 51 : 1079-1094.
DOI: 10.1111/jbi.14808
Sivault E., Koane B., Chmurova L., Sam K. (2024) Birds and bats reduce herbivory damage in Papua New Guinean highland forests. Ecology 105 : article number: e4421.
DOI: 10.1002/ecy.4421
Sivault E., Kollross J., Ré Jorge L., Finnie S., Diez Méndez D., Fernández-Garzón S., Maraia H., Lenc J., Libra M., Murakami M., Nakaji T., Nakamura M., Rachakonda S., Sam L., Abe T., Weiss M., Sam K. (2024) Insectivorous birds and bats outperform ants in the top-down regulation of arthropods across strata of a Japanese temperate forest. Journal of Animal Ecology 93 : 1622-1638.
DOI: 10.1111/1365-2656.14146
Xiao X., Ré Jorge L., Volf M., Moos M., Gélin U., Finnie S., Freiberga I., Jančúchová Lásková J., Weiss M., Novotný V., Sam K. (2024) The effect of drought-induced leaf traits on Ficus leaf palatability is species specific. Ecosphere 15 : article number: e4831.
DOI: 10.1002/ecs2.4831
Zvereva E.L., Adroit B., Andersson T., Barnett C.R.A., Branco S., Castagneyrol B., Chiarenza G.M., Dáttilo W., del-Val E., Filip J., Griffith J., Hargreaves A.L., Hernández-Agüero J.A., Silva I.L.H., Hong Y., Kietzka G., Koistinen M., Klimeš P., Kruglova O., Kumpula S., Lopezosa P., March-Salas M., Marquis R., Marusik Y.M., Moles A.T., Muola A., Murkwe M., Nakamura A., Olson C., Pagani-Núñez E., Popova A., Rahn O., Reshchikov A., Rodriguez-Campbell A., Rytkönen S., Sam K., Sounapoglou A., Tropek R., Wenda C., Xu G., Zeng Y., Zolotarev M., Zubrii N., Zverev V., Kozlov M.V. (2024) Predation on live and artificial insect prey shows different global latitudinal patterns Global Ecology and Biogeography 33 : article number: e13899.
DOI: 10.1111/geb.13899

More publications

CONTACT

Biology Centre CAS
Institute of Entomology
Branišovská 1160/31
370 05 České Budějovice

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