American Cliff Swallow (Petrochelidon pyrrhonota) Science Article 5 abstract The study of adaptive behaviors lies at the very heart of behavioral ecology. Although there is certainly no lack of debate about what constitutes an adaptation (2), most researchers in the field probably would not quibble with the statement that adapted traits are those that are […]
Category: Passeriformes
Mark-recapture and behavioral ecology:a case study of Cliff Swallows
American Cliff Swallow (Petrochelidon pyrrhonota) Science Article 7 abstract Mark-recapture and the statistical analysis methods associated with it offer great potential for investigating fitness components associated with particular behavioral traits. However, few behavioral ecologists have used these techniques. We illustrate the insights that have come from a long-term mark-recapture study of social behavior in CliffSwallows […]
Geographic diversification in the call repertoire ofthe genus Pyrrhocorax (Aves, Corvidae)
Alpine Chough (Pyrrhocorax graculus) Science Article 2 abstract We analysed the call repertoires of the Red-billed Chough (Pyrrhocorax pyrrhocorax) and the AlpineChough (Pyrrhocorax graculus) across three continents (Europe, Asia, and Africa) for intraspecific and interspecificdifferences in call-repertoire size and discuss the factors that could have promoted its evolution. Paola Laiolo, Antonio Rolando, Anne Delestrade, and […]
WINTER MOVEMENTS OF THE ALPINE CHOUGH: IMPLICATIONS FOR MANAGEMENT IN THE ALPS
Alpine Chough (Pyrrhocorax graculus) Science Article 1 abstract The home ranges and movements of marked Alpine choughs (Pyrrhocorax graculus) were investigated in Aosta Valley, western Italian Alps, in two study sessions: winter-spring 1996-1997 and winter-spring 1997-1998. Overall 28 birds were marked, six of these were also equipped with a small radio tag. P. Laiolo, A. […]
Sexual Size Dimorphism and Positive Assortative Mating in Alpine Choughs (Pyrrhocorax graculus)
Alpine Chough (Pyrrhocorax graculus) Science Article 3 abstract The degree of sexual size dimorphism in a number of different morphological characters was examined in a social corvid, the Alpine Chough, using measurements taken on 178 males and 144 females ANNE DELESTRADE, The Auk 118(2):553-556, 2001 Download article download full text (pdf)
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 […]
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 […]
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 […]
EVOLUTIONARY ASPECTS OF PARENTAL BEHAVIOR:DISTRACTION BEHAVIOR OF THE ALPINE ACCENTOR
Alpine Accentor (Prunella collaris) Science Article 8 abstract Most animals that demonstrate parental care also engage in behavior thatincreases their offsprings’ chances of survival when confronted by a predator,often at the risk of injury or death to the parent itself. Such ‘altruistic’parental behavior ranges from concealment and immobility to outright attacksupon the predator. DAVID P. […]