scholarly journals Prey selectivity and parental feeding rates of Blue Tits Cyanistes caeruleus in relation to nestling age

Bird Study ◽  
2012 ◽  
Vol 59 (2) ◽  
pp. 236-242 ◽  
Author(s):  
Vicente García-Navas ◽  
Esperanza S. Ferrer ◽  
Juan José Sanz
Keyword(s):  
Prey Selectivity ◽  
Feeding Rates ◽  
Cyanistes Caeruleus ◽  
Parental Feeding ◽  
Blue Tits

scholarly journals Opposite differential allocation by males and females of the same species

2013 ◽  
Vol 9 (1) ◽  
pp. 20120835 ◽  
Author(s):  
Tobias Limbourg ◽  
A. Christa Mateman ◽  
C. M. Lessells
Keyword(s):  
Biparental Care ◽  
Differential Allocation ◽  
Parental Effort ◽  
Feeding Rates ◽  
Experimental Protocol ◽  
Cyanistes Caeruleus ◽  
Males And Females ◽  
First Time ◽  
Blue Tits ◽  
Uv Coloration

Differential allocation (DA)—the adjustment of an individual's parental investment in relation to its mate's attractiveness—is increasingly recognized as an important component of sexual selection. However, although DA is expected by both sexes of parents in species with biparental care, DA by males has rarely been investigated. We have previously demonstrated a decrease in the feeding rates of female blue tits Cyanistes caeruleus when their mate's UV coloration was experimentally reduced (i.e. positive DA). In this study, we used the same experimental protocol in the same population to investigate DA by male blue tits in relation to their female's UV coloration. Males mated to UV-reduced females had higher feeding rates than those mated to control females (i.e. negative DA). Thus, male and female blue tits display opposite DA for the same component of parental effort (chick provisioning), the first time that this has been reported for any species.

The Impact of the Female Immune Challenge on Parental Feeding Rate, Mass and Body Condition Index of Offspring

2018 ◽  
Vol 11 (1) ◽  
pp. 24-34 ◽  
Author(s):  
Emilia Grzędzicka
Keyword(s):  
Immune System ◽  
Body Condition ◽  
Condition Index ◽  
Control Group ◽  
Feeding Rates ◽  
Body Condition Index ◽  
Parental Feeding ◽  
Parental Provisioning ◽  
The Impact ◽  
Blue Tits

Reproduction is a resource-demanding period, when trade-offs between investment in immunity versus other functions of an adult organism may exist. This research investigates the potential trade-off between a challenged immune system of a female parent and parental provisioning in free-living Great Tits Parus major and Eurasian Blue Tits Cyanistes caeruleus. In both species, half of females were challenged with sheep red blood cells (SRBC) as an antigen, while the others were injected with phosphate buffer saline (PBS) as a control. Six days later – at the day assumed to be the peak of an immune response in birds treated with SRBC, when nestlings were nine days old – parental feeding rates were recorded. Two days later (and eleven days after hatching), nestling mass and body condition index (BCI) were quantified. SRBC challenge of the female increased feeding rates of Great Tit males and females, but did not change parental provisioning in Eurasian Blue Tits. This may be explained by the different reproductive strategies in these two bird species. Parental provisioning influenced the mass and BCI of offspring. In both species, offspring mass was lower and BCI was higher in the SRBC group than those in the control group. This means that high providers, such as Great Tits with increased feeding rates, do not always raise chicks with high fledgling mass. Parental provisioning is one of the key factors linking reproduction and the immune system.

scholarly journals Personality in Blue Tits (Cyanistes caeruleus) and its Effect on Their Breeding Success

Ethology ◽  
2016 ◽  
Vol 122 (8) ◽  
pp. 695-701 ◽  
Author(s):  
Claire Colchester ◽  
Nancy M. Harrison
Keyword(s):  
Breeding Success ◽  
Cyanistes Caeruleus ◽  
Blue Tits

scholarly journals Effect of tree logging on reproductive performance in Blue Tits (Cyanistes caeruleus)

2016 ◽  
Vol 158 (1) ◽  
pp. 339-344
Author(s):  
Seyed Mehdi Amininasab ◽  
Charles C. Y. Xu ◽  
Sjouke A. Kingma ◽  
Jan Komdeur
Keyword(s):  
Reproductive Performance ◽  
Cyanistes Caeruleus ◽  
Blue Tits

scholarly journals Integrated behavioural and stable isotope data reveal altered diet linked to low breeding success in urban-dwelling blue tits (Cyanistes caeruleus)

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Christopher J. Pollock ◽  
Pablo Capilla-Lasheras ◽  
Rona A. R. McGill ◽  
Barbara Helm ◽  
Davide M. Dominoni
Keyword(s):  
Stable Isotope ◽  
Breeding Success ◽  
Cyanistes Caeruleus ◽  
Isotope Data ◽  
Blue Tits ◽  
Stable Isotope Data

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

scholarly journals Chromaticity in the UV/blue range facilitates the search for achromatically background-matching prey in birds

2008 ◽  
Vol 364 (1516) ◽  
pp. 511-517 ◽  
Author(s):  
Nina Stobbe ◽  
Marina Dimitrova ◽  
Sami Merilaita ◽  
H. Martin Schaefer
Keyword(s):  
Search Task ◽  
Cyanistes Caeruleus ◽  
Chromatic Contrast ◽  
Background Matching ◽  
Long Time ◽  
Chromatic Cues ◽  
Blue Range ◽  
Underlying Mechanisms ◽  
Chromatic Properties ◽  
Blue Tits

A large variety of predatory species rely on their visual abilities to locate their prey. However, the search for prey may be hampered by prey camouflage. The most prominent example of concealing coloration is background-matching prey coloration characterized by a strong visual resemblance of prey to the background. Even though this principle of camouflage was recognized to efficiently work in predator avoidance a long time ago, the underlying mechanisms are not very well known. In this study, we assessed whether blue tits ( Cyanistes caeruleus ) use chromatic cues in the search for prey. We used two prey types that were achromatically identical but differed in chromatic properties in the UV/blue range and presented them on two achromatically identical backgrounds. The backgrounds had either the same chromatic properties as the prey items (matching combination) or differed in their chromatic properties (mismatching combination). Our results show that birds use chromatic cues in the search for mismatching prey, whereupon chromatic contrast leads to a ‘pop-out’ of the prey item from the background. When prey was presented on a matching background, search times were significantly higher. Interestingly, search for more chromatic prey on the matching background was easier than search for less chromatic prey on the matching background. Our results indicate that birds use both achromatic and chromatic cues when searching for prey, and that the combination of both cues might be helpful in the search task.

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:...

Development of nestling blue tits (Cyanistes caeruleus) is affected by experimental addition of aromatic plants

2020 ◽  
Vol 13 (3) ◽  
pp. 44-48
Author(s):  
Bárbara A Pires ◽  
Anabela DF Belo ◽  
Fernanda Diamantino ◽  
João E Rabaça ◽  
Santiago Merino
Keyword(s):  
Resource Competition ◽  
Aromatic Plants ◽  
Aromatic Plant ◽  
Tarsus Length ◽  
Cyanistes Caeruleus ◽  
Positive Effects ◽  
Nestling Development ◽  
Nestling Survival ◽  
Effect Of Treatment ◽  
Blue Tits

Some passerines incorporate aromatic plants in their nest cups, and several hypotheses have been formulated to explain this behaviour. One of those, the Drug Hypothesis, states that aromatic plants present in nests have positive effects on nestlings’ development through increased immune function. In this study, we aimed to examine if experimental addition of aromatic plants had positive effects on reproductive performance (the number of fledglings produced and nestling survival rate) and nestling development (weight and tarsus length). In addition, we study whether those potential effects were more noticeable in different brood sizes–small and large–through an observational approach. We expect that large broods, due to increased resource competition between nestlings, will benefit more from aromatic plant incorporation, as compared to small broods. Nestlings were significantly heavier in 2015 as compared to 2016 and 2017 and in small broods. No effect of treatment was observed in nestling weight. Although there was no overall effect of treatment on nestling tarsus length, nestlings from aromatic nests had significantly longer tarsi as compared to nestlings from control nests, in large broods.

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