scholarly journals Does mist-netting provide reliable data to determine the sex and age ratios of migrating birds? A case study involving the Great Tit (Parus major) and the Blue Tit (Cyanistes caeruleus)

2013 ◽  
Vol 32 (2) ◽  
Author(s):  
Jarosław K. Nowakowski ◽  
Jacek Chruściel ◽  
Krzysztof Muś
Keyword(s):  
Parus Major ◽  
Great Tit ◽  
Reliable Data ◽  
Blue Tit ◽  
Cyanistes Caeruleus ◽  
Baltic Coast ◽  
Migrating Birds ◽  
Blue Tits ◽  
Age And Sex

AbstractNowakowski J.K., Chruściel J., Muś K.: Does mist-netting provide reliable data to determine the sex and age ratios of migrating birds? A case study involving the Great Tit (Parus major) and the Blue Tit (Cyanistes caeruleus). Ekologia (Bratislava), Vol. 32, No. 2, p. 173-185 , 2013.Ringing results of tits caught at two stations on the Polish Baltic coast were used to check if mistnetting could be successfully used to analyse the composition of sex and age classes of migrating birds. Four hypotheses are discussed, describing the distribution of age and sex classes during migration, and the consequences these distributions might have for the catching results. We analysed records of 59 000 Blue Tits and more than 84 000 Great Tits that were caught and we found a similarity in the results of catches at stations 188 km apart, and a higher similarity among catching sites 0.5-16 km apart. These results proved that mist-netting provides reliable data on the sex and age structure of migrating flocks, and that these data can generally be interpreted as representative for at least the area in a radius of more than 10 km. The results also showed a migratory divide through the central part of the Polish Baltic coastline between irruptive Blue Tits in the west and regular partial migrants in the east. Great Tits showed no tendency for irruptions anywhere in the study area. A high correspondence in the age and sex ratio was found for Great Tits and Blue Tits, in particular where both species are regular migrants. We found that the ratios of females and immatures did not differ by more than 1% over many years of study in these areas.

scholarly journals Speed of autumn migration of the Blue Tit (Parus caeruleus) along the eastern and southern Baltic coast

Ring ◽  
2004 ◽  
Vol 26 (1) ◽  
pp. 3-12 ◽  
Author(s):  
Jarosław Nowakowski ◽  
Jacek Chruściel
Keyword(s):  
Parus Major ◽  
Great Tit ◽  
Autumn Migration ◽  
Migration Speed ◽  
Parus Caeruleus ◽  
Blue Tit ◽  
Baltic Coast ◽  
Interpopulation Variation ◽  
Southern Baltic ◽  
Blue Tits

Speed of autumn migration of the Blue Tit (Parus caeruleus) along the eastern and southern Baltic coast An analysis of the speed of autumn migration was based on 315 ringing recoveries of Blue Tits caught between 1963-1999 at 6 ringing stations along the south-eastern and southern Baltic coast. It was found that among passerines the Blue Tit is the slowest European migrant (median value - 25.8 km/day, average - 28.4 km/day), with a very low (intra- and interpopulation) variation of migration speed. No differences in migration speed were found between individuals of different age and sex and among years of different intensities of movements. The migration speeds of the Blue Tit and the Great Tit (Parus major) in different years correlated.

scholarly journals [Bird predation on larvae of the box tree moth, Cydalima perspectalis (Walker, 1859)]

2019 ◽  
Vol 88 (2) ◽  
pp. 45-46
Author(s):  
Leonardo Mostini
Keyword(s):  
Far East ◽  
Passer Domesticus ◽  
Parus Major ◽  
Great Tit ◽  
Pica Pica ◽  
Blue Tit ◽  
Cyanistes Caeruleus ◽  
Haematopus Ostralegus ◽  
Nw Italy ◽  
Made In

[This paper indicates, by describing their predatory behaviors, seven species of birds observed to catch Cydalima perspectalis larvae; moth infestations widespread in the Far East and accidentally introduced to Europe in 2006, larvae that cause considerable damage to the box tree, Buxus sp., removing all leaves from the area. The observations were made in Piedmont (NW Italy) in 2016 in relation to the Blackbird, Turdus merula and Great tit, Parus major; and in the Holland (Noord Brabant) in 2017 in relation to Oystercatcher, Haematopus ostralegus; Great tit, Parus major; Blue tit, Cyanistes caeruleus; Magpie, Pica pica; Starling, Sturnus vulgaris; House sparrow, Passer domesticus.]   [Article in Italian]

scholarly journals Social transmission in the wild can reduce predation pressure on novel prey signals

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Liisa Hämäläinen ◽  
William Hoppitt ◽  
Hannah M. Rowland ◽  
Johanna Mappes ◽  
Anthony J. Fulford ◽  
...  
Keyword(s):  
Evolutionary Dynamics ◽  
Parus Major ◽  
Predation Pressure ◽  
Social Transmission ◽  
Blue Tit ◽  
Cyanistes Caeruleus ◽  
Novel Approach ◽  
Transmission Of Information ◽  
In The Wild ◽  
Animal Communities

AbstractSocial transmission of information is taxonomically widespread and could have profound effects on the ecological and evolutionary dynamics of animal communities. Demonstrating this in the wild, however, has been challenging. Here we show by field experiment that social transmission among predators can shape how selection acts on prey defences. Using artificial prey and a novel approach in statistical analyses of social networks, we find that blue tit (Cyanistes caeruleus) and great tit (Parus major) predators learn about prey defences by watching others. This shifts population preferences rapidly to match changes in prey profitability, and reduces predation pressure from naïve predators. Our results may help resolve how costly prey defences are maintained despite influxes of naïve juvenile predators, and suggest that accounting for social transmission is essential if we are to understand coevolutionary processes.

Does the Threat of European Pine Marten (Martes Martes) Predation Influence the Height of Nests Built by Blue Tits(Cyanistes Caeruleus)and Great Tits (Parus Major)?

2014 ◽  
Vol 7 (2) ◽  
pp. 83-90 ◽  
Author(s):  
Adam Kaliński ◽  
Jarosław Wawrzyniak ◽  
Mirosława Bańbura ◽  
Joanna Skwarska ◽  
Piotr Zieliński ◽  
...  
Keyword(s):  
Parus Major ◽  
Martes Martes ◽  
Pine Marten ◽  
Cyanistes Caeruleus ◽  
Blue Tits ◽  
European Pine Marten

Supplementary Information – Chapter 2

2020 ◽  
pp. 34-35
Author(s):  
Marta Szulkin ◽  
Colin J. Garroway ◽  
Michela Corsini ◽  
Andrzej Z. Kotarba ◽  
Davide Dominoni
Keyword(s):  
Remote Sensing ◽  
Parus Major ◽  
Environmental Variation ◽  
Supplementary Information ◽  
Cyanistes Caeruleus ◽  
Gis And Remote Sensing ◽  
Urban Sites ◽  
Blue Tits

Environmental variation was quantified at nestboxes monitored as part of a prospectively long-term project on the ecology and evolution of great tits Parus major and blue tits Cyanistes caeruleus in Warsaw, Poland. Nine axes of environmental variation were investigated across 9 different urban sites, for a total of 565 specific locations (here: nestboxes). Data was collected on the ground, with the use of GIS and remote sensing using the following methodology:...

scholarly journals Do glucocorticoids predict fitness? Linking environmental conditions, corticosterone and reproductive success in the blue tit, Cyanistes caeruleus

2017 ◽  
Vol 4 (10) ◽  
pp. 170875 ◽  
Author(s):  
L. J. Henderson ◽  
N. P. Evans ◽  
B. J. Heidinger ◽  
K. A. Herborn ◽  
K. E. Arnold
Keyword(s):  
Reproductive Success ◽  
Environmental Conditions ◽  
Empirical Studies ◽  
Blue Tit ◽  
Cyanistes Caeruleus ◽  
Free Living ◽  
Brood Rearing ◽  
Fledging Success ◽  
Harsh Conditions ◽  
Blue Tits

Glucocorticoids, including corticosterone (CORT), have been suggested to provide a physiological link between ecological conditions and fitness. Specifically, CORT, which is elevated in response to harsh conditions, is predicted to be correlated with reduced fitness. Yet, empirical studies show that CORT can be non-significantly, positively and negatively linked with fitness. Divergent environmental conditions between years or study systems may influence whether CORT is linked to fitness. To test this, we monitored free-living blue tits ( Cyanistes caeruleus ) during breeding over 3 years. We quantified foraging conditions during brood rearing, and examined whether they were correlated with parental baseline CORT and reproductive success. We then tested whether CORT predicted fitness. Elevated parental CORT was associated with lower temperatures, greater rainfall and lower territory-scale oak density. Whereas asynchrony with the caterpillar food peak was correlated with reduced nestling mass and fledging success, but not parental CORT. Only low temperatures were associated with both reduced nestling mass and elevated parental CORT. Despite this, parents with elevated CORT had lighter offspring in all years. Contrarily, in 2009 parental CORT was positively correlated with the number fledged. The absence of a direct link between the foraging conditions that reduce nestling quality and elevate parental CORT suggests that parental CORT may provide a holistic measure of conditions where parents are working harder to meet the demands of developing young. As the positive correlation between parental CORT and fledging success differed between years, this suggests that contrasting conditions between years can influence correlations between parental CORT and fitness. Ultimately, as CORT concentrations are intrinsically variable and linked to the prevalent conditions, studies that incorporate environmental harshness will improve our understanding of evolutionary endocrinology.

Evaluation of biochemical effects related to perfluorooctane sulfonic acid exposure in organohalogen-contaminated great tit (Parus major) and blue tit (Parus caeruleus) nestlings

Chemosphere ◽  
2005 ◽  
Vol 61 (11) ◽  
pp. 1558-1569 ◽  
Author(s):  
Philippe Tony Hoff ◽  
Kristin Van de Vijver ◽  
Tom Dauwe ◽  
Adrian Covaci ◽  
Johan Maervoet ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Parus Major ◽  
Great Tit ◽  
Acid Exposure ◽  
Parus Caeruleus ◽  
Blue Tit ◽  
Biochemical Effects

Relationship between Blood Haemoglobin and Glucose Concentrations in Adult Great Tits (Parus Major) and Blue Tits (Cyanistes Caeruleus)

2016 ◽  
Vol 9 (3) ◽  
pp. 152-158 ◽  
Author(s):  
Adam Kaliñski ◽  
Mirostawa Bańbura ◽  
Michat Glądalski ◽  
Marcin Markowski ◽  
Joanna Skwarska ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Body Condition ◽  
Parus Major ◽  
Blood Chemistry ◽  
Cyanistes Caeruleus ◽  
Bird Populations ◽  
Common Value ◽  
Blood Haemoglobin ◽  
The Common ◽  
Blue Tits

Haematological and blood chemistry variables are widely used in ecophysiological research as physiological indices of body condition in various vertebrate taxa. In this study, we analysed relationships between blood glucose and blood haemoglobin concentrations of adult birds in wild populations of Blue Tits ( Cyanistes caeruleus) and Great Tits ( Parus major) during the breeding season in central Poland. We found that blood glucose and blood haemoglobin concentrations are negatively correlated. We also show that individual Blue Tits have higher mean haemoglobin levels adjusted for the common value of glucose concentration than individual Great Tits and that females of both species have higher mean haemoglobin concentrations than males. Our results suggest that haematological as well as biochemical variables may be used in tune as complementary indices of body condition in wild bird populations.

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