Document Detail


Physiological trade-offs between reproduction, flight capability and longevity in a wing-dimorphic cricket, Modicogryllus confirmatus.
MedLine Citation:
PMID:  12769884     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Physiological and morphological comparisons were made between the short-winged (SW) and long-winged (LW) morphs of a cricket, Modicogryllus confirmatus, to determine the cost of the flight capacity and the physiological mechanisms underlying trade-offs between different life history traits related to migration and reproduction. Both wingmorphs grew at a similar rate and no consistent correlation was found between nymphal development and adult body size. The metathoracic muscles at adult emergence represented 4.2% of the wet body weight in the SW morph and 10.5% in the LW morph. Fat content of the body at adult emergence was positively correlated to dry body weight, but no significant difference was found in mean fat content between the two wingmorphs or between sexes after body weight was adjusted. SW females fed ad libitum produced significantly more eggs than LW females during the first 20days of adult life. Egg production was not correlated to either body size or the duration of nymphal development. LW adults lived longer than SW ones when kept with water alone or when given various amounts of food on day 1 and otherwise kept with water alone. In females, a highly significant correlation was found between longevity and egg production, indicating the presence of a trade-off. LW females mainly allocated the energy from food to flight muscle development and general maintenance of the body rather than to egg production, whereas SW females used it for egg production and longevity. LW females that had been de-alated at adult emergence histolyzed the flight muscle and used the energy from food for egg production almost exclusively. These results suggest that energy allocation and trade-offs after adult emergence may play crucial roles in the functional differentiation of the two wingmorphs.
Authors:
Y Suzuki; S Tanaka
Related Documents :
18399444 - Threats and control of the brown necked ravens (corvus ruficollis) in egypt.
7232104 - Organochlorine and heavy metal residues in black duck eggs from the atlantic flyway, 1978.
6720674 - Association between reported diet and all-cause mortality. twenty-one-year follow-up on...
6483714 - Increasing hatchability of turkey eggs by matching incubator humidity to shell conducta...
20682004 - How do teenagers manage their food allergies?
11359704 - Control of fumonisin: effects of processing.
Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Journal of insect physiology     Volume:  44     ISSN:  1879-1611     ISO Abbreviation:  J. Insect Physiol.     Publication Date:  1998 Feb 
Date Detail:
Created Date:  2003-May-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985080R     Medline TA:  J Insect Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  121-129     Citation Subset:  -    
Affiliation:
Department of Insect Physiology and Behavior, National Institute of Sericultural and Entomological Science, Ohwashi 1-2, Tsukuba, Ibaraki, Japan
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Colour Pattern Plasticity in the Hoverfly, Episyrphus balteatus: The Critical Immature Stage and Rea...
Next Document:  The effects of aposymbiosis and of an infection with Blastocrithidia triatomae (Trypanosomatidae) on...