Tag: all of Prunella

Female control of copulations to maximize male help: a comparison ofpolygynandrous alpine accentors, Prunella collaris, and dunnocks,P. modularis

Dunnock (Prunella modularis) Science Article 1 abstract Alpine accentors and dunnocks bred in polygynandrous groups in which two or moreunrelated males shared two or more females. In both species, a female solicited actively to both alphaand subordinate males whereas an alpha male attempted to guard the female to monopolize paternity.Females combated the restrictions imposed by […]

Territoriality and song as flexible paternityguards in dunnocks and alpine accentors

Dunnock (Prunella modularis) Science Article 6 abstract I compare paternity defense strategies in the variable mating systems of alpine accentors Prunella collaris and dunnocks P. modularis. I show that in dunnocks breeding territoriality functions exclusively for mate defense Naomi E. Langmore, Behavioral Ecology Vol. 7 No. 2: 183-188 Download article download full text (pdf)

Female dunnocks use vocalizations to compete for males

Dunnock (Prunella modularis) Science Article 2 abstract In songbirds, males are usually the more competitive sex and they use vocalizations to attractfemales and to compete with rival males. When levels of female-female competition were experimentallyincreased in a population of dunnocks, Prunella modularis, females were predicted to increase theirvocalization rates and to use vocalizations in comparable […]

Song switching in monandrous and polyandrous dunnocks, Prunella modularis

Dunnock (Prunella modularis) Science Article 3 abstract The dunnock song repertoire comprises multiple song types, and during bouts of singingmales repeat a song type several times before switching. Several hypotheses suggest that the rate atwhich males switch song types may function in male-male aggression, mate attraction, or both.Dunnocks switched song types 10 times faster when […]

Competition for male reproductive investmentelevates testosterone levels in female dunnocks,Prunella modularis

Dunnock (Prunella modularis) Science Article 4 abstract In many songbirds, females occasionally sing in contexts of high female-female competition. Testosteronemay be involved in the activation of song, because testosterone implants elicit female song in many specieswith rare female song. A possible mechanism for the hormonal control of female song is provided by thechallenge hypothesis, which […]

Vancomycin Resistance Genes in Enterococcus spp. Strains Isolatedfrom Alpine Accentor and Chamois

Alpine Accentor (Prunella collaris) Science Article 5 abstract Enterococcus strains from highland animals the alpine accentor Prunella collaris (n = 19) and chamois Rupicapra rupicapra (n = 18) were isolated. One third of strains belonged to the species E. casseliflavus, while other were identified as E. faecalis and E. gallinarum, E. faecium and E. mundtii […]

Feeding preferences and foraging behaviour in the Alpine Accentor Prunella collaris

Alpine Accentor (Prunella collaris) Science Article 4 abstract In flocks of Alpine Accentors (Prunella collaris), we observed the foraging behaviour of birds when they were foraging on a grid containing clumps of seeds. We measured the feeding rate, diet diversity, individual and seasonal feeding preferences and dominance in birds. Producing and scrounging were frequently observed […]

Susceptibility of Enterobacteriaceae from the Alpine Accentor Prunella collaris

Alpine Accentor (Prunella collaris) Science Article 7 abstract Occurrence of bacterial species of the family Enterobacteriaceace and their susceptibility andminimum inhibitory concentrations (MIC90) to 13 selected antimicrobial agents was studied in 22faecal samples of the alpine accentor Prunella collaris. Alpine accentor is our main research avianmodel for the studying of the interaction between the comensal […]

Cooperative Breeding by Alpine Accentors Prunella collaris:Polygynandry, Territoriality and Multiple Paternity

Alpine Accentor (Prunella collaris) Science Article 1 abstract The composition of breeding groups, territoriality, parentage and parental care were examined in a population of Alpine Accentors Prunella collaris in the Swiss Alps. Five (1993) and six (1994) breeding groups were located on a south facing hillside between 2500 and 2860 m above sea level. 3-5 […]