Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Rainer Rosengren"'
Publikováno v:
Hereditas. 89:233-248
Enzyme gene variability was studied in European populations of 13 Formica ant species. Average gene diversity within nests ranged in different species from 0 to 0.047 and within populations from 0 to 0.078, the averages being 0.015 and 0.043, respect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::757285334f7793424670c5a44f1e9677
https://doi.org/10.1111/j.1601-5223.1978.tb01278.x
https://doi.org/10.1111/j.1601-5223.1978.tb01278.x
Publikováno v:
Hereditas. 92:321-325
The chromosome numbers of the species Formica aquilonia Yarr., Formica uralensis Ruzsk. and Formica pressilabris Nyl. were all found to be n=26. The chromosome number of F. uralensis thus does not accord with the view that this species belongs to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b340fa8c792f25e2bd55a5e244d460e
https://doi.org/10.1111/j.1601-5223.1980.tb01715.x
https://doi.org/10.1111/j.1601-5223.1980.tb01715.x
Publikováno v:
Hereditas. 80:293-296
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c64899d2b19fc540b9aadab6f0e4035
https://doi.org/10.1111/j.1601-5223.1975.tb01528.x
https://doi.org/10.1111/j.1601-5223.1975.tb01528.x
Autor:
Outi Salo, Rainer Rosengren
Publikováno v:
Ethology. 107:737-752
Spatial recognition cues used in site fidelity in the ant Formica uralensis Ruzsky were studied using outdoor and laboratory arenas. Ant workers visiting symmetrically spaced feeders were colour-marked corresponding to the initial feeder visited duri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2bebb3feabc6ad150e5b17c68b2ef84
https://doi.org/10.1046/j.1439-0310.2001.00702.x
https://doi.org/10.1046/j.1439-0310.2001.00702.x
Publikováno v:
Heredity. 81:604-612
Workers of social insects may enhance their inclusive fitness by laying unfertilized eggs that develop into males. In particular, workers may gain from rearing worker-produced males if their average relatedness to them exceeds their relatedness to qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::310c229b2a5316a63bd3553e0b356fa1
https://doi.org/10.1046/j.1365-2540.1998.00434.x
https://doi.org/10.1046/j.1365-2540.1998.00434.x
Publikováno v:
Ethology Ecology & Evolution. 6:221-235
It is suggested that the evolution of polyandry by social hymenopteran queens is caused by colony-level selection, either because polyandry affects the distribution of non-functional diploid males in colonies (the load hypothesis) or because it incre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6eacb3273cabf35c71d6b28d9790e4da
https://doi.org/10.1080/08927014.1994.9522996
https://doi.org/10.1080/08927014.1994.9522996
Autor:
Laurent Keller, Rainer Rosengren, G. Gris, D. Chautems, F. Walter, Edward L. Vargo, David J.C. Fletcher, Wilhelm Fortelius, Daniel Cherix
Publikováno v:
Insectes Sociaux. 40:319-324
Sexuals ofFormica lugubris fly to mating places, where females attract males by using a sex pheromone. Females collected on the nest surface before departing on a mating flight are much less attractive than those collected on the mating place after t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faae7ac4eb3db6246cd3d8e5d93dbf39
https://doi.org/10.1007/bf01242368
https://doi.org/10.1007/bf01242368
Publikováno v:
University of Helsinki
ResearcherID
ResearcherID
1. We studied how colonies of the red wood ant, Formica polyctena, adjust the numbers of foragers allocated to different foraging trails. In a series of field experiments, foragers were marked and transferred from one nest to another, related nest, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2ceb5bf0ce6ce87ae5a859ba5da1b86
https://doi.org/10.1111/j.1365-2311.1992.tb01167.x
https://doi.org/10.1111/j.1365-2311.1992.tb01167.x
Autor:
F. Walter, Wilhelm Fortelius, D. Chautems, Laurent Keller, D. J. C. Fletcher, Edward L. Vargo, G. Gris, Rainer Rosengren, Luc Passera, Daniel Cherix
Publikováno v:
Ethology Ecology & Evolution. 3:60-66
A long term study on the reproductive strategies of Formica lugubris (Formica rufa group) has revealed many new important facts. Within a supercolony the sex-ratio is strongly female biased. Some of the sexuals mate on the nest surface, whereas other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1016fc51e3f4e460fb1819d6826c727
https://doi.org/10.1080/03949370.1991.10721912
https://doi.org/10.1080/03949370.1991.10721912
Autor:
Luc Passera, Laurent Keller, Wilhelm Fortelius, Daniel Cherix, Rainer Rosengren, Edward L. Vargo, David J. C. Fletcher, Anne Grimal, D. Chautems
Publikováno v:
Entomologia Generalis. 15:25-32
Identification des substrats utilises par les sexues au cours du vol nuptial. Suivi de l'accumulation et de l'utilisation de ces substrats entre l'emergence de l'image et la fin du vol nuptial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5512b89599287570c5ba73b055b089cc
https://doi.org/10.1127/entom.gen/15/1990/25
https://doi.org/10.1127/entom.gen/15/1990/25