TY - JOUR
T1 - Age Structure of Parasitized and Unparasitized Populations of the Field Cricket Teleogryllus oceanicus
AU - Simmons, Leigh W.
AU - Zuk, Marlene
PY - 1994
Y1 - 1994
N2 - We compared the age structure of three populations of Teleogryllus oceankus that differed with respect to their exposure to parasitization by an acoustically‐orienting parasitoid fly, Ormia ochracea. Within two unparasitized populations, females were, on average, younger than males. Female age did not vary across the three populations but males were younger, on average, in the parasitized population. Sexual differences in age structure within populations may arise due to differential risks associated with pair formation. Because we only know of a single parasitized population from which we can sample, we can not be sure that some other ecological difference does not account for the observed variation in age structure across populations. However, the decreased age of males in the parasitized population is at least consistent with the notion of viability selection on males. 1994 Blackwell Verlag GmbH
AB - We compared the age structure of three populations of Teleogryllus oceankus that differed with respect to their exposure to parasitization by an acoustically‐orienting parasitoid fly, Ormia ochracea. Within two unparasitized populations, females were, on average, younger than males. Female age did not vary across the three populations but males were younger, on average, in the parasitized population. Sexual differences in age structure within populations may arise due to differential risks associated with pair formation. Because we only know of a single parasitized population from which we can sample, we can not be sure that some other ecological difference does not account for the observed variation in age structure across populations. However, the decreased age of males in the parasitized population is at least consistent with the notion of viability selection on males. 1994 Blackwell Verlag GmbH
UR - http://www.scopus.com/inward/record.url?scp=0028247907&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0028247907&partnerID=8YFLogxK
U2 - 10.1111/j.1439-0310.1994.tb01081.x
DO - 10.1111/j.1439-0310.1994.tb01081.x
M3 - Article
AN - SCOPUS:0028247907
SN - 0179-1613
VL - 98
SP - 333
EP - 340
JO - Ethology
JF - Ethology
IS - 3-4
ER -