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Colony pollen reserves affect body size, sperm production and sexual development in males of the stingless bee Melipona beecheii
Springer Science and Business Media LLC - Tập 59 - Trang 417-424 - 2012
F. G. Pech-May, L. Medina-Medina, W. de J. May-Itzá, R. J. Paxton, J. J. G. Quezada-Euán
The production of male sexual offspring by social insect colonies is often strongly seasonal or resource-dependent. In stingless bees, males are produced in smaller numbers under conditions of low colony food reserves; whether such males are negatively affected in traits related to reproductive success is not known. We compared body size, sperm production and sexual maturity in Melipona beecheii m...... hiện toàn bộ
Le développement post-embryonnaire de l'appareil génital chez les sexués deCubitermes fungifaber (Sjöstedt) (Termitidae, Termitinae)
Springer Science and Business Media LLC - - 1977
Mamadou Salif N'Diaye
Au cours du développement post-embryonnaire des sexués normaux deCubitermes fungifaber, il s'établit un dimorphisme sexuel, visible par l'allongement progressif du 7e sternite chez la femelle, corrélatif à la formation de la chambre génitale. Au cours de mues nymphales, les gonades et les tractus génitaux se développent de façon synchrone et régulière. L'ovaire, qui se compose d'un très grand nomb...... hiện toàn bộ
An experimental study of bamboo ants in western Amazonia
Springer Science and Business Media LLC - Tập 53 - Trang 108-114 - 2006
D. W. Davidson, J. A. Arias, J. Mann
Numerous ant taxa naturally inhabit stems of live and dead Guadua bamboo (Bambusoidea, Poaceae) in western Amazonia. In an experiment at the onset of the wet season in Peru’s Manu National Park, we augmented potential nest sites in stems of live bamboo, dead bamboo and dead caña brava (Gynerium sagittatum, another woody grass) at five stations within each of ten bamboo patches and ten control area...... hiện toàn bộ
Social encapsulation of the small hive beetle (Aethina tumida Murray) by European honeybees (Apis mellifera L.)
Springer Science and Business Media LLC - Tập 50 - Trang 286-291 - 2003
J. D. Ellis, H. R. Hepburn, A. M. Ellis, P. J. Elzen
European and African subspecies of honeybees (Apis mellifera L.) utilize social encapsulation to contain the small hive beetle (Aethina tumida Murray), a honeybee colony scavenger. Using social encapsulation, African honeybees successfully limit beetle reproduction that can devastate host colonies. In sharp contrast, European honeybees often fail to contain beetles, possibly because their social e...... hiện toàn bộ
Légende de la planche hors texte
Springer Science and Business Media LLC - Tập 6 - Trang 269-269 - 1959
Predation on earwigs: A novel diet specialization within the genusLeptogenys (Formicidae: Ponerinae)
Springer Science and Business Media LLC - Tập 40 - Trang 337-340 - 1993
S. Steghaus-Kovac, U. Maschwitz
Leptogenys sp. 13 (nearkraepelini) exclusively hunts on earwigs (Gonolabis electa andParalabis sp.). This unusual kind of prey specialization is shown by field data, prey midden investigations, and prey selection experiments. The adaptive value of the species' prey specialization is discussed.
Explications des planches
Springer Science and Business Media LLC - Tập 5 Số 2 - Trang 200-200 - 1958
Plasticity in expression of fruit fly larval feeding clusters in response to changes in food quality and distribution
Springer Science and Business Media LLC - - Trang 1-11 - 2024
T. T. Shoot, N. Y. Miller, T. A. F. Long
Joining a social group entails a range of possible costs and benefits, with the balance of pros and cons potentially dependent on the specific conditions present in the local environment. In the third-instar stage of fruit fly (Drosophila melanogaster) development, individuals may join together into clusters that can increase access to buried food resources, but this collaboration comes with the p...... hiện toàn bộ
Workers and queens of the European hornetVespa crabro L. have colony-specific cuticular hydrocarbon profiles (Hymenoptera: Vespidae)
Springer Science and Business Media LLC - Tập 42 - Trang 45-55 - 1995
D. P. Butts, M. A. Camann, K. E. Espelie
Cuticular hydrocarbons were extracted from sixty individual workers from six colonies ofVespa crabro L. and analyzed by combined gas-chromatography/mass spectrometry. Discriminant analysis of the cuticular hydrocarbon profiles of workers and queens showed that the wasps could be grouped by colony and by caste. Stepwise discriminant analysis selected the components which were weighted most heavily ...... hiện toàn bộ
In memoriam Shoichi F. Sakagami (1927–1996)
Springer Science and Business Media LLC - Tập 46 - Trang 197-197 - 2014
Sô. Yamane
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