Deivis Dementavičius


Name Surname Deivis Dementavičius

Biomedical Sciences, Ecology and Environmental

Institute: Nature Research Centre, Laboratory of Avian Ecology

Scientific Supervisor: Dr Rimgaudas Treinys

Consultant Supervisor:

Study period: 2017-12-22 – 2021-12-21

Research theme: Reproductive parameters, habitat selection and interaction with other species in the increasing White-tailed Eagle (Haliaeetus albicilla) population

Short annotation (the aim, objectives)

Aim of study – to estimate reproduction parameters, habitat selection and their dynamics in increasing population of the Whte-tailed Eagle as well as interactions with other species


Objectives are to estimate:

  1. does mezopredator (Clanga pomarina) suffers reproduction costs when nesting in vicinity of White-tailed Eagle;
  2. interaction between recovered White-tailed Eagle and other species belonging to different trophic levels;
  3. habitat selection and its changes during population increase;
  4. spatio-temporal variation in reproduction parameters and nestlings quality.


Publications (WOS Publications):


Rumbutis, S., Vaitkuvienė, D., Grašytė, G., Dagys, M., Dementavičius, D. and Treinys, R. 2017. Adaptive habitat preferences in the Tawny Owl Strix aluco. Bird Study 64: 421–430.


Treinys, R., Dementavičius, D., Mozgeris, G., Skuja, S., Rumbutis, S. and Stončius, D. 2011. Coexistence of protected avian predators: does a recovering population of White-tailed Eagle threaten to exclude other avian predators? European Journal of Wildlife Research 57: 1165–1174.


Treinys, R.,  Dementavičius, D., Rumbutis, S., Švažas, S., Butkauskas, D., Sruoga, A. and Dagys, M. 2016. Settlement, habitat preference, reproduction, and genetic diversity in recovering the white-tailed eagle Haliaeetus albicilla population. Journal of Ornithology 157: 311–323.



International White-tailed Eagles colour ringing programme. (from 1997)

“Migratory Birds of the Western Palearctic”, OMPO.  (2011 – 2015) 

„Monitoring of Raptors and Owls in Europe“. Institute of Zoology-University of Halle – Wittenberg (Germany). (2001 – 2008)

“Conservation of White-tailed Eagles in Lithuania”. (from 2003)

“Conservation of the Lesser Spotted Eagle (Aquila pamarina) in Lithuanian forests“, LIFE09 NAT/LT/000235. (2011 – 2015)

Training courses:


International conference SEA EAGLE 2017 CONFERENCE, 5-7 October, Roosta, Estonia

International conference  THE 18TH CONFERENCE OF GOOSE SPECIALIST GROUP, 27-30 March 2018 at Klaipėda University, Lithuania

Contacts: e-mail; phone + 370 686 57705