A5078501872- Avian ecology and behavior
- Animal Behavior and Reproduction
- Bird parasitology and diseases
- Electromagnetic Fields and Biological Effects
- Marine animal studies overview
- Species Distribution and Climate Change
- Genetic diversity and population structure
- Animal Ecology and Behavior Studies
- Magnetic and Electromagnetic Effects
- Ionosphere and magnetosphere dynamics
- Wildlife Ecology and Conservation
- Animal Vocal Communication and Behavior
- Ecology and biodiversity studies
- Scientific Research and Discoveries
- Ecology and Vegetation Dynamics Studies
- Hemispheric Asymmetry in Neuroscience
- Plant and animal studies
- Impact of Light on Environment and Health
- Environmental and Biological Research in Conflict Zones
- Radio Wave Propagation Studies
St Petersburg University
2007-2024
Institute of Evolutionary Physiology and Biochemistry
2017-2024
Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences
2016
Kologrivsky Nature Reserve
2016
Space-based tracking technology using low-cost miniature tags is now delivering data on fine-scale animal movement at near-global scale. Linked with remotely sensed environmental data, this offers a biological lens habitat integrity and connectivity for conservation human health; global network of sentinels change.
Abstract This paper reports on the total distribution of spring migration timing willow warbler, chiffchaff and pied flycatcher at locations in UK, Germany, Russia Finland. is first time that high‐quality data based known‐effort monitoring has been examined a continental scale. First arrival dates, commonly reported literature, were positively correlated with mean dates although they would not make good predictors latter. At all locations, least one aspect each species had got significantly...
We report on the experiments orientation of a migratory songbird, garden warbler (Sylvia borin), during autumn migration period Courish Spit, Eastern Baltics. Birds in experimental cages, deprived visual information, showed seasonally appropriate direction intended flight with respect to magnetic meridian. Weak radiofrequency (RF) field (190 nT at 1.4 MHz) disrupted this ability. These results may be considered as an independent replication earlier experiments, performed by group R. and W....
We examined the influence of hatching date, nestling condition (body mass), size and sex on age at onset, duration extent postjuvenile moult in a Great Tit population southern Finland. Date explained most variation parameters. Onset was closely connected with date: Tits from first broods started moulting July birds second mid-August. The start decreased 56 to 42 days repeat 67 59 days. Variation parameters date timing are concordance experimental data photoperiodic control moult. Females...
Previously, it has been shown that long-distance migrants, garden warblers ( Sylvia borin ), were disoriented in the presence of narrow-band oscillating magnetic field (1.403 MHz OMF, 190 nT) during autumn migration. This agrees with data previous experiments European robins Erithacus rubecula ). In this study, we report results tested under a 1.403 OMF various amplitudes (∼0.4, 1, ∼2.4, 7 and 20 nT). We found ability to orient round arenas using compass could be disrupted by very weak...
Many migrating animals, belonging to different taxa, annually move across the globe and cover hundreds thousands of kilometres. them are able show site fidelity, i.e. return relatively small migratory targets, from distant areas located beyond possible range direct sensory perception. One widely debated possibility how they do it is use a magnetic map, based on dependence parameters geomagnetic field (total intensity inclination) geographical coordinates. We analysed temporal fluctuations as...
The shortening of day lengths is known to advance the late-summer and autumn events annual cycle preceding migration in late-hatched individuals order synchronize individual cycles birds that hatched on different dates. However, little about how length influences behavior during migration. Here, we tested locomotory activity first-year migrant Long-tailed Tits (Aegithalos c. caudatus) from northwestern Russia under two photoperiodic conditions period. were taken into experiment after they...
The magnetic compass is an important element of the avian navigation system, which allows migratory birds to solve complex tasks moving between distant breeding and wintering locations. photochemical magnetoreception in eye believed be primary biophysical mechanism behind sense birds. It was shown previously that were disoriented presence weak oscillating fields (OMF) with frequencies megahertz range. OMF effect considered a fingerprint eye. In this work, we used miniaturized portable coils...
In northern Europe the long-tailed tit Aegithalos c. caudatus shows irregular outbreaks of migrating individuals in autumn. Therefore, this species is generally believed to be irruptive, moving response external environmental stimuli such as food limitation or overpopulation breeding area. We studied locomotory activity 24 young captive tits from August up early May following year. All hand raised birds local population Lake Ladoga region (NW Russia) exhibited a distinct seasonal pattern...
It has been proposed that immune functioning in wild animals is shaped by the trade‐off between a probability of encountering pathogens and an availability resources for maintaining system active state. Due to resources’ seasonality one can expect functioning, e.g. absolute relative counts white blood cells, WBC (leukocyte profile) also follows annual cycle. However, dynamics seasonal changes leukocyte profile are controversial specific inquiries so far addressed only portion To study test...
Abstract We examined the extent of postjuvenile moult rectrices, greater coverts, alula and tertials in Great Tit Parus major during migration feather replacement near Lake Ladoga. The 16 hand%raised birds was also followed experimental photoperiodic conditions simulating different hatching dates. data from caged showed that is photoperiodically controlled. Autumn short%light days reduce moult. moulting trapped wild agreed with results revealed timing influenced individual Annual variation...
Abstract In spring, many migrating songbirds exhibit protandry (the phenomenon whereby males precede females in arrival at breeding sites). The reed bunting ( Emberiza schoeniclus ) is a short-distance migrant which expresses high degree of and combines both nocturnal diurnal movements during migrations. experimental conditions, we studied the proximate mechanisms compared locomotor behavior between spring autumn We assumed that captive proxy for birds demonstrate wild. Combined, analysis...
We compared autumnmigration in two distant populations of the nominate subspecies Long-tailed Tit (Aegithalos c. caudatus) with assumed different migratory habits order to reveal difference characteristics theirmovements.We studied theNorthern European (Lake Ladoga region, NW Russia) population considered be irruptive, and Northeastern Asian (Primorye, Russian Far East) which is believed migrate regularly. analyzed year-to-year fluctuation numbers, timing movements, body mass, fat reserves...
Late-hatched Great Tits Parus major have often a lower local recruitment rate than those hatched early. However, estimates of usually neglect differential disappearance due to dispersal. We report on the proportions late-hatched breeders in two Tit breeding populations (near St. Petersburg, NW Russia, and Courish Spit, Eastern Baltic). Using novel method, birds (hatching July) were distinguished next season by incomplete moult their tail feathers. Based this we able estimate percentage...