Search

Start Over Subject ant

1. Interactions between ants and breeding Paridae in two distinct Corsican oak habitats

Creator:
Lambrechts, Marcel M., Schatz, Bertrand, and Bourgault, Patrice
Type:
article and TEXT
Subject:
ant, Crematogaster scutellaris, Paridae, ant-bird interactions, and Corsica
Language:
English
Description:
Insects and avian cavity-nesters share the same nest boxes in different oak habitat types on Corsica. The proportion of boxes occupied by ants did not differ between broad-leaf deciduous and evergreen oak woodland, but differed significantly between reproductive stages in two Paridae species. Different types of interactions between ants and avian hole-nesters are reported and discussed.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/

2. Regulation of larval diapause by colony-founding queens of Crematogaster teranishii (Hymenoptera: Formicidae)

Creator:
Nakamura, Keiji
Format:
počítač and online zdroj
Type:
model:article and TEXT
Subject:
Hymenoptera, Formicidae, colony development, ant, larval diapause, reproductive diapause of queens, low temperature, and social effect
Language:
English
Description:
Nuptial flights of Crematogaster teranishii Santschi occur in autumn. Queens and possibly larvae pass the first winter without workers in Okayama, Japan. This study examines and tests the hypothesis that C. teranishii queens regulate not only their own diapause, but also that of their larvae. Some queens collected immediately after their nuptial flight in early October were exposed to a low temperature of 10°C for 3 months before transfer to 25°C; these queens started oviposition approximately 8 days after the transfer. Larvae reared by these previously chilled queens pupated synchronously until day 50. Other field-collected queens reared at 25°C without prior chilling reproduced soon after collection. They started oviposition, but the development of their larvae was arrested and pupation occurred late or not at all within the120 day experimental period. The delay in pupation in colonies in which the queens were not previously exposed to low temperature strongly indicates that many larvae are in diapause. Because eggs and larvae were not exposed to low temperatures, they were unable to determine the developmental pathway providing the best response to environmental factors. Results indicate that queens regulate whether their larvae undergo diapause.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public