Patterns of reproduction in southern versus northern populations of Leptothorax ants (Hymenoptera: Formicidae)

Populations of 2 Leptothorax ant species were sampled near the edge of their ranges. The southern population of L. curvispinosus Mayr showed no significant demographic shifts from northern populations, but the southern population of L. longispinosus Roger was almost exclusively monogynous, in contra...

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Bibliographic Details
Published in:Annals of the Entomological Society of America 1996-05, Vol.89 (3), p.354-360
Main Authors: Herbers, J.M. (Colorado State University, Fort Collins, CO.), Stuart, R.J
Format: Article
Language:English
Subjects:
AMELIORATION DES ANIMAUX
Animal and plant ecology
ANIMAL BREEDING
Animal, plant and microbial ecology
Animals
Biological and medical sciences
Demecology
DINAMICA DE LA POBLACION
DISTRIBUCION GEOGRAFICA
DISTRIBUTION GEOGRAPHIQUE
DYNAMIQUE DES POPULATIONS
FEMALES
FEMELLE
FORMICIDAE
Fundamental and applied biological sciences. Psychology
GEOGRAPHICAL DISTRIBUTION
GEOGRAPHICAL VARIATION
HEMBRA
Hymenoptera
INSECTA
LEPOTHHORAX LONGISPINOSUS
Leptothorax
LEPTOTHORAX CURVISPINOSUS
MATING COMBINATIONS
MEJORAMIENTO ANIMAL
MICHIGAN
MOMOGYNY
NESTING
NESTS
NEW YORK
NIDIFICACION
NIDIFICATION
NUEVA YORK
OHIO
ONTARIO
POLYGYNY
POPULATION DYNAMICS
Protozoa. Invertebrata
QUEENS
SOCIAL INSECTS
VERMONT
VIRGINIE OCCIDENTALE
WEST VIRGINIA
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Description
Summary:Populations of 2 Leptothorax ant species were sampled near the edge of their ranges. The southern population of L. curvispinosus Mayr showed no significant demographic shifts from northern populations, but the southern population of L. longispinosus Roger was almost exclusively monogynous, in contrast to northern counterparts. In both species, we found clear evidence of queen—worker conflict over allocation to males and also over allocation to growth versus reproduction in the southern populations. Geographic variation between populations can prove very useful for investigating evolutionary dynamics in social insects.
ISSN:0013-8746
1938-2901
DOI:10.1093/aesa/89.3.354