Effect of temperature and food concentration on post-embryonic development, egg production and adult body size of calanoid copepod Eurytemora affinis

1994 ◽  
Vol 16 (6) ◽  
pp. 721-735 ◽  
Author(s):  
Syuhei Ban
Keyword(s):  
Body Size ◽  
Embryonic Development ◽  
Egg Production ◽  
Calanoid Copepod ◽  
Food Concentration ◽  
Effect Of Temperature ◽  
Eurytemora Affinis ◽  
Adult Body Size ◽  
Adult Body

Effects of adult body size on mating success of the black soldier fly, Hermetia illucens (L.) (Diptera: Stratiomyidae)

2020 ◽  
pp. 1-16
Author(s):  
B.M. Jones ◽  
J.K. Tomberlin
Keyword(s):  
Body Size ◽  
Mating Success ◽  
Egg Production ◽  
Egg Hatch ◽  
Black Soldier Fly ◽  
Hermetia Illucens ◽  
Hatch Rate ◽  
Adult Body Size ◽  
Multiple Matings ◽  
Adult Body

Body size is a recognised factor impacting mating success of a number of insect species. The black soldier fly, Hermetia illucens (L.) (Diptera: Stratiomyidae), which is mass produced to convert organic waste to protein, exhibits a lekking behaviour necessary for mating. However, it is not known if adult body size impacts mating success and subsequent fertile egg production. In this study, larvae were raised at two densities to produce two size classes of adults (i.e. large and small). Hourly mating observations were recorded in the following studies: (1) homogenous populations of large or small adults; (2) 50% heterogenous populations (equal number of large males with small females and vice versa); and (3) 25% heterogenous (i.e. equal number of large and small adults for both sexes). Adult weight, morphometrics of resulting adults, total number of mating pairs and failed mating attempts, multiple matings, as well as eggs produced and associated hatch rate were recorded for each experiment. Morphometrics and weights in large adults were 21 and 50% greater than small adult males and females by size and weight, respectively. The first experiment of homogenous populations (i.e. large or small) showed no significant differences across other variables measured. However, when populations of different sized adults were mixed equally based on sex (i.e. 50% heterogenous populations), mating success increased 50 to 100% for small males with large females and large males with small females, respectively. Total number of multiple matings increased two to three times. Egg production decreased 15-20% and hatch rate declined approximately 10%. In the 25% heterogenous populations, data were more complex. Number of successful mating pairs across male size was 280% greater than in the homogenous populations. Number of failed mating attempts was also two to three times greater. Multiple matings overall were low (10%) for the homogenous and heterogenous populations. Large males demonstrated two times more aggression in general than small males in the heterogenous than the homogenous populations. Approximately 48 to 343% more eggs were produced in the 25% heterogenous population than large or small homogenous populations, respectively, while hatch rate did not differ among heterogenous and homogenous populations, with an average of 70%. However, the variability in egg hatch was forty times greater than the large homogenous and 40% greater than the small homogenous. While increased egg production is desired, high variability in egg hatch impedes fertile egg production and predictability at an industrial scale.

scholarly journals Heritability and adaptive phenotypic plasticity of adult body size in the mosquito Aedes aegypti with implications for dengue vector competence

2011 ◽  
Vol 11 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Jennifer R. Schneider ◽  
Dave D. Chadee ◽  
Akio Mori ◽  
Jeanne Romero-Severson ◽  
David W. Severson
Keyword(s):  
Body Size ◽  
Phenotypic Plasticity ◽  
Aedes Aegypti ◽  
Vector Competence ◽  
Dengue Vector ◽  
Adult Body Size ◽  
Adult Body ◽  
Adaptive Phenotypic Plasticity

Grass-flower thrips of the genus Chirothrips (Thysanoptera: Thripidae), with a key to species from Iran

Zootaxa ◽  
2010 ◽  
Vol 2411 (1) ◽  
pp. 33 ◽  
Author(s):  
KAMBIZ MINAEI ◽  
LAURENCE MOUND
Keyword(s):  
Body Size ◽  
Species Group ◽  
Identification Key ◽  
Key To Species ◽  
Adult Body Size ◽  
Flower Thrips ◽  
New Synonym ◽  
Adult Body ◽  
Structural Differences

Species of the genus Chirothrips Haliday breed and pupate only within grass florets. Each larva is restricted to a single floret, and adult body size is thus presumably related to floret size. Despite this, some Chirothrips species are distinguished only on states that are related to body size. The validity of some commonly recorded members of the C. manicatus species-group, including C. africanus and C. pallidicornis, is therefore considered questionable. Character states that have been used to define the genus Agrostothrips Hood are shown to be variable, and this genus is placed as a new synonym of Chirothrips. An identification key, based on illustrated structural differences, is provided to the Chirothrips known from Iran: C. aculeatus, C. atricorpus, C. kurdistanus, C. manicatus, C. meridionalis and C. molestus.

scholarly journals Childhood retardation resulting in reduction of adult body size due to lesser adolescent skeletal delay

1970 ◽  
Vol 33 (3) ◽  
pp. 325-336 ◽  
Author(s):  
A. Roberto Frisancho ◽  
Stanley M. Garn ◽  
Werner Ascoli
Keyword(s):  
Body Size ◽  
Adult Body Size ◽  
Adult Body

Geographical and latitudinal variation in growth patterns and adult body size of Swedish moose (Alces alces)

Oecologia ◽  
1995 ◽  
Vol 102 (4) ◽  
pp. 433-442 ◽  
Author(s):  
H�kan Sand ◽  
G�ran Cederlund ◽  
Kjell Danell
Keyword(s):  
Body Size ◽  
Alces Alces ◽  
Growth Patterns ◽  
Latitudinal Variation ◽  
Adult Body Size ◽  
Adult Body

Evolutionary Divergence of Adult Body Size and Juvenile Growth in Sympatric Subpopulations of a Top Predator in Aquatic Ecosystems

2015 ◽  
Vol 186 (1) ◽  
pp. 98-110 ◽  
Author(s):  
Petter Tibblin ◽  
Anders Forsman ◽  
Per Koch-Schmidt ◽  
Oscar Nordahl ◽  
Peter Johannessen ◽  
...  
Keyword(s):  
Body Size ◽  
Aquatic Ecosystems ◽  
Evolutionary Divergence ◽  
Juvenile Growth ◽  
Top Predator ◽  
Adult Body Size ◽  
Adult Body

scholarly journals Associations between prenatal and postnatal growth and adult body size and composition

2003 ◽  
Vol 77 (6) ◽  
pp. 1498-1505 ◽  
Author(s):  
Haojie Li ◽  
Aryeh D Stein ◽  
Huiman X Barnhart ◽  
Usha Ramakrishnan ◽  
Reynaldo Martorell
Keyword(s):  
Body Size ◽  
Postnatal Growth ◽  
Adult Body Size ◽  
Adult Body
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