| enterococcus phoeniculicola sp. nov., a novel member of the enterococci isolated from the uropygial gland of the red-billed woodhoopoe, phoeniculus purpureus. | a facultatively anaerobic, gram-positive, coccoid, non-spore-forming, non-motile, catalase-negative bacterium was isolated from the uropygial (preen) gland of wild red-billed woodhoopoes (phoeniculus purpureus) and designated strain jlb-1(t). physiological and biochemical testing suggested that this homofermentative, lactic-acid-producing bacterium could belong to the genus enterococcus or the genus streptococcus. comparison of the 16s rrna gene sequence of strain jlb-1(t) with other 16s rdna se ... | 2003 | 12807187 |
| avian exocrine secretions. i. chemical characterization of the volatile fraction of the uropygial secretion of the green woodhoopoe, phoeniculus purpureus. | using gas chromatography-mass spectrometry in conjunction with auxiliary techniques such as solid phase microextraction and determination of double bond positions by means of dimethyl disulfide derivatization, 45 constituents of the uropygial secretion of the green woodhoopoe, phoeniculus purpureus, have been identified. the majority of these constituents are long-chain branched and unbranched alkanes, and (z)-alkenes such as (z)-9-tricosene, and a number of unidentified wax esters. the more vol ... | 2004 | 15537162 |
| delayed breeding affects lifetime reproductive success differently in male and female green woodhoopoes. | in cooperatively breeding species, many individuals only start breeding long after reaching physiological maturity [1], and this delay is expected to reduce lifetime reproductive success (lrs) [1-3]. although many studies have investigated how nonbreeding helpers might mitigate the assumed cost of delayed breeding (reviewed in [3]), few have directly quantified the cost itself [4, 5] (but see [6, 7]). moreover, although life-history tradeoffs frequently influence the sexes in profoundly differen ... | 2007 | 17412589 |
| delayed dispersal: youth costs carry lifetime gains. | an analysis of reproductive success in the green woodhoopoe phoeniculus purpures challenges the view that delayed dispersal is costly. females delaying dispersal for longer had more reproductive events in life and higher lifetime production of offspring. | 2007 | 17550768 |
| duration and outcome of intergroup conflict influences intragroup affiliative behaviour. | theoreticians have long suggested that the amount of intergroup conflict in which a group is involved could influence the level of cooperation or affiliation displayed by its members. despite the prevalence of intergroup conflicts in many social animal species, however, few empirical studies have investigated this potential link. here, i show that intragroup allopreening rates are highest in green woodhoopoe (phoeniculus purpureus) groups that have the greatest involvement in intergroup conflict ... | 2008 | 18765344 |
| antimicrobial chemicals in hoopoe preen secretions are produced by symbiotic bacteria. | animals frequently use metabolites produced by symbiotic bacteria as agents against pathogens and parasites. secretions from the preen gland of birds are used for this purpose, although its chemicals apparently are produced by the birds themselves. european hoopoes upupa epops and green woodhoopoes phoeniculus purpureus harbour symbiotic bacteria in the uropygial gland that might be partly responsible for the chemical composition of secretions. here we investigate the antimicrobial activity of t ... | 2010 | 19812087 |
| preparing for battle? potential intergroup conflict promotes current intragroup affiliation. | groups of human soldiers increase their affiliative behaviour when moving into combat zones. despite numerous other species also competing as groups, little is known about how potential intergroup conflict might influence current intragroup affiliative behaviour in non-human animals. here, i show that allopreening (when one individual preens another) increases in groups of cooperatively breeding green woodhoopoes (phoeniculus purpureus) when they enter areas where conflicts with neighbours are m ... | 2011 | 20610419 |
| post-allogrooming reductions in self-directed behaviour are affected by role and status in the green woodhoopoe. | allogrooming occurs in a wide range of species and can serve both hygienic and social functions. while the latter have long been thought to be underpinned by reductions in tension for recipients, recent work has suggested that donors may also benefit in this way. here, i show that, in cooperatively breeding green woodhoopoes phoeniculus purpureus, involvement in allogrooming is followed by a reduction in self-grooming by both recipients and donors, but that the former exhibit a greater decrease. ... | 2011 | 21795264 |
| conflict between groups promotes later defense of a critical resource in a cooperatively breeding bird. | conflict between groups (intergroup conflict) is common in many social species and is widely discussed as an evolutionary driver of within-group dynamics and social structure. however, empirical studies investigating the impacts of intergroup conflict have focused on the immediate aftermath, when behavioral changes may be the direct result of elevated stress levels or territorial exclusions. demonstrations of longer-term effects, with behavioral changes persisting once increases in stress have d ... | 2014 | 25454781 |
| obligate cavity-roosting as a constraint on dispersal of green (red-billed) woodhoopoes: consequences for philopatry and the likelihood of inbreeding. | i studied and compared life histories and dispersal patterns of two populations of green (red-billed) woodhoopoes phoeniculus purpureus, occupying different habitats (with widely different vegetation, topography and climate), over a period of eight years (258 "flock years") in the eastern cape province, south africa. the birds are obligate cavity-roosters, and i performed an experiment in which several woodhoopoe territories were established after the introduction of artificial roost sites in an ... | 1992 | 28313715 |
| birdcall lures improve passerine mist-net captures at a sub-tropical african savanna. | field research techniques are constantly evolving to meet the needs of the scientific community. there is a growing need for field biology studies to shift towards increasing efficiency and quality of results while simultaneously decreasing cost in both the researcher's time and resources. i tested the efficacy of using multiple recorded birdcall lures (n = 172 species) to improve mist-net captures at a subtropical african savanna setting. capture success was compared between passive and birdcal ... | 2018 | 29928048 |