Eastern Bonellis Warbler (Phylloscopus orientalis) Science Article 1 abstract Adult birds replace their flight feathers (moult) at least once per year, either in summer aftertermination of breeding or (in the case of some long-distance migratory species) in the winterquarters. We reconstructed the evolutionary pathways leading to summer and winter moultusing recently published molecular phylogenetic information […]
Category: Passeriformes
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 […]
The wintering of migrant Dunnocks Prunellamodularis in two Mediterranean habitats after fire
Dunnock (Prunella modularis) Science Article 5 abstract Migrant Dunnocks Prunella modularis are common winter visitors to the Mediterranean area. In a burnt forest, Dunnocks were present from October to April. PERE PONS, Bird Study (2001) 48, 68-75 Download article download full text (pdf)
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 […]
Two new calls from the Dupont’s Lark Chersophilus duponti and imitations by other alaudids: ecological and monitoring implications
Duponts Lark (Chersophilus duponti) Science Article 4 abstract The Dupont’s Lark Chersophilus duponti isone of the rarest Palearctic passerines, whosedistribution is confined in Europe to the remainingsteppe plateaux and lowlands of the Iberianpeninsula (Cramp, 1998). As a consequenceof recent data that revealed that Spanishpopulations are much smaller than previouslyestimated, the species is currently considered
Home range, territoriality and habitat selection by the Dupont
Duponts Lark (Chersophilus duponti) Science Article 3 abstract A total of 32 birds were radiotagged (22 males, 4 females and 6 juveniles) and monitored nearly daily from April 1st to September 1st. The following variables were measured (1) home ranges using the Minimum Convex Poligon, MCP, (2) core areas using the kernel 80 % density […]
SEXUAL ROLES IN THE DOT-WINGED ANTWREN (MICRORHOPIAS QUIXENSIS), A TROPICAL FOREST PASSERINE
Dot-winged Antwren (Microrhopias quixensis) Science Article 1 abstract Dot-winged Antwrens maintain long-term pair bonds on year-long territories in tropical forests and woodland of Central and South America. Pairs partition breeding-related activities nearly equally. Like other antbirds (Formicariidae), both sexes incubate and brood. Both sexes participate equally in territorial maintenance behavior, which primarily involves active border […]