Extra-pair paternity and the reproductive role of male floaters in the tree swallow (Tachycineta bicolor)

2001 ◽  
Vol 49 (4) ◽  
pp. 251-259 ◽  
Author(s):  
Bart Kempenaers ◽  
Susie Everding ◽  
Cheryl Bishop ◽  
Peter Boag ◽  
Raleigh J. Robertson
Keyword(s):  
Tachycineta Bicolor ◽  
Tree Swallow ◽  
Extra Pair Paternity

A test of the genetic compatibility hypothesis with tree swallows, Tachycineta bicolor

2005 ◽  
Vol 83 (7) ◽  
pp. 955-961 ◽  
Author(s):  
Colleen A Barber ◽  
Mandy J Edwards ◽  
Raleigh J Robertson
Keyword(s):  
Genetic Similarity ◽  
Hatching Success ◽  
Negative Relationship ◽  
Tachycineta Bicolor ◽  
Tree Swallow ◽  
Tree Swallows ◽  
Genetic Compatibility ◽  
Extra Pair Paternity ◽  
Socially Monogamous ◽  
Compatibility Hypothesis

The genetic compatibility hypothesis proposes that females should mate with genetically dissimilar males whose alleles best complement their own, resulting in greater offspring heterozygosity. It predicts that genetic similarity between social pairs will be positively related to the proportion of extra-pair young within broods and negatively related to hatching success. We tested these two predictions in tree swallow (Tachycineta bicolor (Vieillot, 1808)) pairs (n = 72). Tree swallows have one of the highest rates of extra-pair paternity among socially monogamous passerines. Contrary to expectation, genetic similarity of a social pair, as measured by the band-sharing coefficient (estimated from multilocus DNA fingerprints), tended to be negatively related to the proportion of extra-pair young within broods, but failed to predict hatching success. When including only the subset of nests for which we had complete genotyping data (n = 37), we again found a significant negative relationship between genetic similarity and the proportion of extra-pair young within broods. Genetic similarity did not differ significantly between nests with and without extra-pair young, nor did it differ between nests with total versus partial hatching success. Overall, our data do not support the genetic compatibility hypothesis in tree swallows, and in fact show some evidence against it.

Tree Swallow (Tachycineta bicolor)

2020 ◽  
Author(s):  
David W. Winkler ◽  
Kelly K. Hallinger ◽  
Daniel R. Ardia ◽  
R. J. Robertson ◽  
B. J. Stutchbury ◽  
...  
Keyword(s):  
Tachycineta Bicolor ◽  
Tree Swallow

scholarly journals Diet of the Nestling Tree Swallow

The Condor ◽  
2004 ◽  
Vol 106 (2) ◽  
pp. 423-429 ◽  
Author(s):  
Jean M. Mengelkoch ◽  
Gerald J. Niemi ◽  
Ronald R. Regal
Keyword(s):  
Open Water ◽  
Time Of Day ◽  
Tachycineta Bicolor ◽  
Tree Swallow ◽  
Tree Swallows ◽  
Larval Stages ◽  
Terrestrial Origin ◽  
The Mean ◽  
Foraging Radius

Abstract Dietary samples from nestling Tree Swallows (Tachycineta bicolor) in northwestern Minnesota were compared to invertebrate availability as measured by aerial tow nets. The majority of the biomass in the nestlings' diet was adult insects with larval stages of aquatic origin, while absolute numbers of insects of both aquatic and terrestrial origin were similar. Orders of invertebrates in the diet and available were similar in number but not in biomass. Diet showed little variation by time of day, date of sampling or the age of the nestling. The mean number of odonates in the nestling Tree Swallows' diet increased exponentially as the percentage of open water and open water + cattail marsh increased within a 400-m foraging radius. Dieta de los Pichones de Tachycineta bicolor Resumen. Se compararon muestras dietarias de pichones de la golondrina Tachycineta bicolor tomadas en el noroeste de Minnesota con la disponibilidad de invertebrados medida con redes aéreas. La mayor parte de la biomasa en la dieta de los pichones correspondió a insectos adultos con estadíos larvales de origen acuá tico, mientras que los números absolutos de insectos de origen acuático y no acuático fueron similares. Los órdenes de invertebrados presentes en la dieta y disponibles en el ambiente fueron similares en números pero no en biomasa. La dieta mostró poca variación entre horas del día, fechas de muestreo o edad de los pichones. El número promedio de odonatos en la dieta de los pichones de T. bicolor aumentó exponencialmente a medida que se incrementó el porcentaje de agua abierta y de agua abierta + pantanos de espadañas dentro de un radio de forrajeo de 400 m.

Sperm quantity and quality effects on fertilization success in a highly promiscuous passerine, the tree swallow Tachycineta bicolor

2010 ◽  
Vol 64 (9) ◽  
pp. 1473-1483 ◽  
Author(s):  
Terje Laskemoen ◽  
Oddmund Kleven ◽  
Frode Fossøy ◽  
Raleigh J. Robertson ◽  
Geir Rudolfsen ◽  
...  
Keyword(s):  
Fertilization Success ◽  
Tachycineta Bicolor ◽  
Tree Swallow

scholarly journals A case of a Pustulated Carrion Beetle (Nicrophorus pustulatus, Coleoptera: Silphidae) burying live Tree Swallow (Tachycineta bicolor, Passeriformes: Hirundinidae) nestlings under the nest

2020 ◽  
Vol 134 (3) ◽  
pp. 217-221
Author(s):  
Kestrel V.B. DeMarco ◽  
Paul R. Martin
Keyword(s):  
Forest Canopy ◽  
Tachycineta Bicolor ◽  
Tree Swallow ◽  
Burying Beetle ◽  
Nest Box ◽  
Early Stages ◽  
Carrion Beetle ◽  
Live Tree ◽  
Different Levels

The ecology of Pustulated Burying Beetle (Nicrophorus pustulatus, Coleoptera: Silphidae) appears distinct among Nicrophorus species, with evidence of it parasitizing snake eggs and foraging primarily above the ground and into the forest canopy. Here we document an extension of its aberrant ecology and behaviour: a case of N. pustulatus burying 2-day-old live and dead nestlings of Tree Swallow (Tachycineta bicolor, Passeriformes: Hirundinidae) under the nest, behaviour consistent with the early stages of breeding in N. pustulatus. Based on different levels of decomposition, we suspect that N. pustulatus responded to one dead swallow nestling in the brood of five and went on to bury all of the nestlings at the bottom of the nest box. The observation provides the first evidence, to our knowledge, of Nicrophorus burying live vertebrates.

scholarly journals Analysis of the optimal duration of behavioral observations based on an automated continuous monitoring system in tree swallows (Tachycineta bicolor): is one hour good enough?

2015 ◽  
Author(s):  
Adam Z Lendvai ◽  
Çağlar Akçay ◽  
Jenny Q Ouyang ◽  
Roslyn Dakin ◽  
Alice D Domalik ◽  
...  
Keyword(s):  
Monitoring System ◽  
Radio Frequency Identification ◽  
Observation Time ◽  
Tachycineta Bicolor ◽  
Tree Swallow ◽  
Parental Effort ◽  
Behavioral Observations ◽  
Behavioral Studies ◽  
Observation Methods ◽  
Monitoring Technologies

Studies of animal behavior often rely on human observation, which introduces a number of limitations on sampling. Recent developments in automated logging of behaviors make it possible to circumvent some of these problems. Once verified for efficacy and accuracy, these automated systems can be used to determine optimal sampling regimes for behavioral studies. Here, we used a radio-frequency identification (RFID) system to quantify parental effort in a bi-parental songbird species: the tree swallow (Tachycineta bicolor). We found that the accuracy of the RFID monitoring system was similar to that of video-recorded behavioral observations for quantifying parental visits. Using RFID monitoring, we also quantified the optimum duration of sampling periods for male and female parental effort by looking at the relationship between nest visit rates estimated from sampling periods with different durations and the total visit numbers for the day. The optimum sampling duration (the shortest observation time that explained the most variation in total daily visits per unit time) was 1h for both sexes. These results show that RFID and other automated technologies can be used to quantify behavior when human observation is constrained, and the information from these monitoring technologies can be useful for evaluating the efficacy of human observation methods.

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