Oskars Keiss
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The design of artificial nestboxes for the study of secondary hole-nesting birds: a review of methodological inconsistencies and potential biases
MM Lambrechts, F Adriaensen, DR Ardia, AV Artemyev, F Atiénzar, ...
Acta Ornithologica 45 (1), 1-26, 2010
The insectivorous bat Pipistrellus nathusii uses a mixed-fuel strategy to power autumn migration
CC Voigt, K Sörgel, J Šuba, O Keišs, G Pētersons
Proceedings of the Royal Society B: Biological Sciences 279 (1743), 3772-3778, 2012
Diet of the insectivorous bat Pipistrellus nathusii during autumn migration and summer residence
F Krüger, EL Clare, WOC Symondson, O Keišs, G Pētersons
Molecular ecology 23 (15), 3672-3683, 2014
Prevalence of tick-borne pathogens in ticks collected from migratory birds in Latvia
V Capligina, I Salmane, O Keišs, K Vilks, K Japina, V Baumanis, R Ranka
Ticks and tick-borne diseases 5 (1), 75-81, 2014
Substantial decline of Northern European peatland bird populations: Consequences of drainage
S Fraixedas, A Lindén, K Meller, Å Lindström, O Keišs, JA Kålås, M Husby, ...
Biological conservation 214, 223-232, 2017
Detection of tick-borne encephalitis virus in I. ricinus ticks collected from autumn migratory birds in Latvia
A Kazarina, K Japiņa, O Keišs, I Salmane, D Bandere, V Capligina, ...
Ticks and Tick-Borne Diseases 6 (2), 178-180, 2015
Recent increases in numbers and the future of Corncrake Crex crex in Latvia
O Keišs
Ornis Hungarica 12 (13), 151-156, 2003
Impact of changes in agricultural land use on the Corncrake Crex crex population in Latvia
O Keišs
Acta Universitatis Latviensis 691, 93-109, 2005
Recent population status and trends of Corncrakes Crex crex in Europe
K Koffijberg, CA Hallmann, O Keiss, N Schäffer
Continental‐scale patterns of pathogen prevalence: a case study on the corncrake
Y Fourcade, O Keišs, DS Richardson, J Secondi
Evolutionary applications 7 (9), 1043-1055, 2014
Extracting historical population trends using archival ringing data—an example: the globally threatened Aquatic Warbler
M Briedis, O Keišs
Journal of Ornithology 157, 419-425, 2016
Corncrake conservation genetics at a European scale: the impact of biogeographical and anthropological processes
Y Fourcade, DS Richardson, O Keišs, M Budka, RE Green, S Fokin, ...
Biological Conservation 198, 210-219, 2016
Results of a survey of Corncrake Crex crex in Latvia, 1989-1995
O Keišs
Bird, 73-76, 2004
Onset of breeding in Tawny Owl Strix aluco in eastern Latvia
G Grandāns, O Keišs, A Avotiņš
Acta Universitatis Latviensis 753, 81-87, 2009
Use of biometrical data to study Corncrake Crex crex population in Latvia
O Keiss, J Granats, A Mednis
Acta Univ. Latv. Biol 676, 119-126, 2004
Results of a randomised Corncrake Crex crex survey in Latvia 1996: population estimate and habitat selection
O Keišs
Die Vogelwelt 118, 231-235, 1997
Mammalian predator distribution and abundance on the Virginia barrier islands in relation to breeding habitats of colonial birds
O Keiss
Utah State University, 2001
Method for identification of avian species by eggshell microstructure: Preliminary study
A Bušs, O Keišs
Acta Univ Latv 753, 89-98, 2009
Latvijas ligzdojošo putnu monitorings
A Auniņš
Uzskaišu metodika. Latvijas Ornitoloģijas biedrība. Auniņš, A, 1-40, 2009
Migration strategies, performance and annual activity budget in a short‐distance migrant, the common starling Sturnus vulgaris
V Vīgants, O Keišs, I Dinsbergs, V Jaunzemis, EM Zacmane, A Priedniece, ...
Journal of Avian Biology 2023 (5-6), e03080, 2023
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