Interference competition and scavenging by Crematogaster ants (Hymenoptera: Formicidae) associated with the webs of the social spider Anelosimus eximius (Araneae: Theridiidae) in the central Amazon

Crematogaster cf. victima is a common inhabitant in the sheet web nests of the social spider Anelosimus eximius in the central Amazon basin near Manaus. A number of other ant species were found foraging on the non-sticky webs of A. eximius, but none of these reached the web occupation frequency found in C. cf. victima, nor, with the exception of an unidentified species of Pheidole, did they form satellite nests in the web, as did this species. Many prey which escaped the knock-down threads of the sheet web of A. eximius colonies were captured by ants in the lower web portions which they dominated. Furthermore, prey which were rejected by A. eximius, especially large, heavily sclerotized beetles, were also consumed by this ant. Repeated observations and experiments suggest that C. cf. victima is able to deter A. eximius activity through aerial venom release. Resources lost by A. eximius colonies to ants, especially C. cf. victima, in colonial web area and prey, may pose significant costs and may reduce colony growth.

Morphological and physiological caste differences in Synoeca cyanea (Hymenoptera, Vespidae, Epiponini) according to the ontogenetic development of the colonies

Morphological caste differences in different stages of the biological cycle in Synoeca cyanea were not distinct. Females presented a gradual sequence in ovarian development from filamentous ovarioles to well developed ones with the presence of intermediates, with shorter ovaries than queens, which can be present or not according to the stage of colonial development. Such data suggest that access to the reproductive status would only be possible in some intervals of colonial development.

Tax performance and reform in the Organization of Eastern Caribbean States (OECS)

Includes bibliography

Development banking in the Eastern Caribbean: the case of Saint Lucia and Grenada

Includes bibliography

Maritime sector and ports in the Caribbean: the case of CARICOM countries

Includes bibliography

Frei Agostinho de Jesus e as tradições da imaginária colonial brasileira: séculos XVI-XVII

Pós-graduação em Artes - IA

Legítimos vassalos: pardos livres e forros na Vila Rica colonial (1750-1803)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

As práticas e os saberes médicos no Brasil colonial (1677-1808)

Pós-graduação em História - FCHS

Os jesuítas e a escravidão africana no Brasil colonial: um estudo sobre os escritos de Antonio Vieira, André João Antonil e Jorge Benci: sécs. XVII e séc. XVIII

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A crise da economia colonial: as dimensões internas das práticas mercantilistas nos escritos de Brito e de Vilhena

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeito do sistema de criação sobre o desempenho e qualidade da carne de frangos de corte tipo colonial e industrial

Pós-graduação em Zootecnia - FMVZ

Literatura e debate pós-colonial em A história do bando de Kelly, de Peter Carey

Pós-graduação em Letras - IBILCE

O olhar pós-colonial na construção de uma identidade irlandesa: um estudo da peça Translations, de Brian Friel

Pós-graduação em Letras - IBILCE

Variação morfofisiológica das castas da vespa enxameante neotropical Polybia (Trichothorax) ignobilis durante sua ontogenia colonial (Hymenoptera, Vespidae, Epiponini)

Pós-graduação em Ciências Biológicas (Zoologia) - IBRC

A consolidação da social democracia no Brasil: forma tardia de dominação burguesa nos marcos do capitalismo de extração prussiano-colonial

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)