Local mate competition in the solitary parasitoid wasp Ooencyrtus kuvanae

2010 ◽  
Vol 65 (5) ◽  
pp. 1071-1077 ◽  
Author(s):  
Ummat Somjee ◽  
Kelly Ablard ◽  
Bernard Crespi ◽  
Paul W. Schaefer ◽  
Gerhard Gries
2019 ◽  
Vol 30 (2) ◽  
pp. 417-425 ◽  
Author(s):  
Rebecca A Boulton ◽  
Nicola Cook ◽  
E V (Ginny) Greenway ◽  
Georgina L Glaser ◽  
Jade Green ◽  
...  

2006 ◽  
Vol 17 (3) ◽  
pp. 345-352 ◽  
Author(s):  
David M. Shuker ◽  
Ido Pen ◽  
Stuart A. West

2018 ◽  
Vol 29 (2) ◽  
pp. 97-104 ◽  
Author(s):  
Jing Li ◽  
Yu Wang ◽  
Cheng-Jie Zhu ◽  
Min Zhang ◽  
Hao-Yuan Hu

Localmate competition (LMC) models predict a female-biased offspring sex ratio when a single foundress oviposits alone in a patch and an increasing proportion of sons with increasing foundress number. We tested whether the solitary pupal parasitoid, Trichopria drosophilae (Hymenoptera: Diapriidae), adjusted offspring sex ratio with foundress number when parasitizing Drosophila melanogaster pupae. Mean number of female offspring was higher than that of males, with a male proportion of 26 ± 16% when only one foundress oviposited. However, male proportion reached 58 ± 26%, 48 ± 22%, and 51 ± 19% in three-, five and seven-foundress cohorts. That the male proportion of offspring increased with foundress number is consistent with LMC models.


2004 ◽  
Vol 82 (12) ◽  
pp. 1969-1974 ◽  
Author(s):  
B H King ◽  
J A D'Souza

Empirical studies of how constrained females affect sex ratio are few. Constrained females are those that can produce only sons (e.g., in haplodiploid species, females that have not mated or older females that have used up their sperm). In the parasitoid wasp Nasonia vitripennis (Walker, 1836), failure to mate soon after emergence increased the probability of a female being constrained and thus affected sex ratio directly. Local mate competition theory shows that whether a female is constrained can also affect sex ratio indirectly by affecting what sex ratio other females produce. However, this was not the case in N. vitripennis. A female's sex ratio was not significantly different when she was with another young mated female versus a virgin female or an old mated female depleted of sperm. These results suggest that N. vitripennis females may be unable to recognize whether another female is constrained. The increased proportion of sons in response to other females relative to when alone did not persist the day after exposure.


2010 ◽  
Vol 35 (6) ◽  
pp. 691-697 ◽  
Author(s):  
ZHEN-JI WANG ◽  
YAN-QIONG PENG ◽  
STEPHEN G. COMPTON ◽  
DA-RONG YANG

2009 ◽  
Vol 132 (2) ◽  
pp. 147-154 ◽  
Author(s):  
Bernd K. Grillenberger ◽  
Jürgen Gadau ◽  
R. Bijlsma ◽  
Louis van de Zande ◽  
Leo W. Beukeboom

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