The parasitoid Closterocerus chamaeleon has a greater development and survival rate than of its hosts, the Eucalyptus gall wasps Ophelimus eucalypti and Ophelimus maskelli in Sumatra, Indonesia

2021 ◽  
Author(s):  
Nike Grace Hanjelina Br Sinulingga ◽  
Marthin Tarigan ◽  
Wagner de Souza Tavares ◽  
Khairul Ansor ◽  
Irfan Pasaribu ◽  
...  
2008 ◽  
Vol 19 (3) ◽  
pp. 168-175 ◽  
Author(s):  
Zoltán László ◽  
Béla Tóthmérész

Clutch size of the gall wasp Diplolepis rosae was studied in galls on Rosa spp. in Eastern Hungary and Romania, Transylvania on four dry pastures. We hypothesised that there was an optimal clutch size, and it was controlled by the emerging rate of the gall inducer and the escaping failure of hatched adults. The most frequent clutch size was 25–30 chambers, and there was a second peak around 60 chambers in each frequency distribution. The most common clutch size did not produce the highest proportion of larval emergence to adulthood. Parasitism rate decreased with increasing clutch size, while the proportion of emerged gall wasps increased and the proportion of dead individuals remained constant. The frequency distribution of clutch sizes was independent of parasitism, emerging failure or survival rate of the gall inducer. The escaping failure rate was also independent from the clutch size.


ZooKeys ◽  
2015 ◽  
Vol 504 ◽  
pp. 149-152 ◽  
Author(s):  
Roger A. Burks ◽  
Jason L. Mottern ◽  
Nicole G. Pownall ◽  
Rebeccah Waterworth ◽  
Timothy D. Paine

2004 ◽  
Vol 171 (4S) ◽  
pp. 209-209
Author(s):  
James B. Benton ◽  
Frank A. Critz ◽  
W. Hamilton Williams ◽  
Clinton T. Holladay ◽  
Philip D. Shrake

VASA ◽  
2018 ◽  
Vol 47 (4) ◽  
pp. 267-272 ◽  
Author(s):  
Konstanze Stoberock ◽  
Tilo Kölbel ◽  
Gülsen Atlihan ◽  
Eike Sebastian Debus ◽  
Nikolaos Tsilimparis ◽  
...  

Abstract. This article analyses if and to what extent gender differences exist in abdominal aortic aneurysm (AAA) therapy. For this purpose Medline (PubMed) was searched from January 1999 to January 2018. Keywords were: “abdominal aortic aneurysm”, “gender”, “prevalence”, “EVAR”, and “open surgery of abdominal aortic aneurysm”. Regardless of open or endovascular treatment of abdominal aortic aneurysms, women have a higher rate of complications and longer hospitalizations compared to men. The majority of studies showed that women have a lower survival rate for surgical and endovascular treatment of abdominal aneurysms after both elective and emergency interventions. Women receive less surgical/interventional and protective medical treatment. Women seem to have a higher risk of rupture, a lower survival rate in AAA, and a higher rate of complications, regardless of endovascular or open treatment. The gender differences may be due to a higher age of women at diagnosis and therapy associated with higher comorbidity, but also because of genetic, hormonal, anatomical, biological, and socio-cultural differences. Strategies for treatment in female patients must be further defined to optimize outcome.


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