Proposal hao final
Transcript of Proposal hao final
The Biology of the Dubia Cockroaches, Blaptica dubia
Hao WuSupervisors: Dr. Appel , Dr. Hu
February 20, 2012
Overview
Introduction: Cockroach, the Dubia Cockroaches
Part I: Instar determination
Part II: Temperature-dependent development
Part III: Parental care
Question?
1 Locomotion: Ground, Water and Air
2 Diets: Omnivores (or unknown)3 Reproduction: Great diversityOviparity A, Oviparity BOvoviviparity A, Ovoviviparity BViviparity4 Sociality: Solitary, Subsocial, Eusocial
(termites)5 Relation to Humans: Pests, Pet Diet,
Pet, Medicine
Cockroaches (Blattodea)
The Classical Cockroach Phylogeny of McKittrick (1964)
The Dubia Cockroaches, Blaptica dubia (Blaberidae)Locomotion: Ground
Diets: Omnivores
Reproduction: Ovoviviparity A
Sociality: Subsocial (Parental Care)
Relation to Humans: Pet, Pet Diet
Source: http://en.wikipedia.org/wiki/File:Blaptica-Dubia-cockroaches-x3-male-female-juvenile-v2.jpg
Oothec a of the Dubia Cockroaches, Photo courtesy of Charles Stephen
The Dubia Cockroaches as food for pets
Excellent, protein-rich diet for insect eating pets Various lizards, turtles, and snakes Spiders
Why the Dubia Cockroaches,Blaptica dubia (Blaberidae)?
Sample Protein(%) Fat (%) Fiber(%) Ash(%)
B.dubia 35.60 6.75 3.25 2.01
B.lateralis 36.50 5.31 2.19 1.95
Meal Worms 21.00 15.52 2.01 1.18
Crickets 18.50 6.26 2.09 1.29G.portentos
a 26.70 5.05 5.62 1.37
Nutrition analysis for common feeder insects
Source: http://doubleds.org/newfeederpg.html
1. High nutrition value
Why the Dubia Cockroaches, Blaptica dubia (Blaberidae)?2.Can not climb smooth surfaces3. Without odor4. Inactive
Almost no research on theDubia cockroaches, little research onBlaberidae
Arolium
Fig. 2 Pretarsus of Dubia Cockraoches, Photo courtesy of Jie Wang
Fig. 1 Pretarsus of Smoky brown Cockraoches, Photo courtesy of Jie Wang
Aroliar pad
Part I Instar determination using Gaussian mixture model
Source: The Encyclopedia of Entomology, 2nd
Three types of development in insects
Part I Instar determination using Gaussian mixture model
Objective: Find the general method to determine instars of the Dubia cockroach
Hypothesis: Gaussian mixture model can be used as a general method in instar determination
Methods: 1. Get a sample of N(N>1000) in the Dubia
Cockroaches population2. Measure the width of the head, the pronotum
width and lengthData Analysis: Gaussian mixture model
Part II Temperature-dependent development
Objective: Find the ideal temperature range for the development of the Dubia cockroachesHypothesis: 30°C~35°C will be the best temperature rangeMethod:Data Analysis: Linear regressionExpect Outcome:
Life stage
Model r2 …
L1
L2
…
Ln
Ltotal
Diagram of Experiment Design
Expect Outcome:
Part III Parental care effectObjective: Determine if parental care affects development of the
Dubia Cockroaches
Hypothesis: The presence of parents affects development of the Dubia Cockroaches
Method:Compare the difference of the head width, the pronotum width and length, and the weight difference in the first two weeks.Compare the difference of the development pattern (the
development of each instar and the instar numbers)
Data Analysis: ANOVA
Diagram of Experiment Design