Statistical Modeling Unit Division of Informatics and Inventory Institute for Agro-Environmental Sciences (NARO) Kannondai 3-1-3, Tsukuba 305-8604, Japan Our experimental field. Ragweeds are planted in the front. Please click the above picture to view the explanation.
since 4 February 2008 Related site for ISO16393 http: //cse .naro .affrc .go .jp/yamamura/Estimation of POD across laboratories .html

I am studying several subjects to manage populations living in an agricultural environment.

Which factor stabilizes the dynamics of populations?
How do alien species expand their distribution?
How does global warming influence the abundance of populations?
How can we effectively record the population dynamics?

Preventing the evolution of insecticide-resistance

Optimal definition of the Limit of Detection (LOD)

http: //cse .naro .affrc .go .jp/yamamura/Estimation of POD across laboratories .html

Bayes method creates estimates arbitrarily  [Electronic supplementary material (ESM) is available]

Statistical theories in import plant quarantine systems in Japan

Evaluating the predictive ability of models  [Preprint version of manucript and Electronic supplementary material (ESM) is available]

Analysis of longitudinal data in medical sciences  [Preprint version of manucript and Electronic supplementary material (ESM) is available]

Sample size for estimatng the proportion of pecky rice grains   [Preprint version of manucript available]

Estimating the population of sika deer   [Preprint version of manucript available]

Detection of genetically modified organisms (GMOs)   [Preprint version of manucript available]

Random median sampling  [Final version of manucript available]

Predicting the potential speed of range expansion of alien insects  [Final version of manucript available]

Global warming increases the yield loss caused by insect pests in paddy field  [PDF available]

Correcting the fatal defect of the conventional Brownian motion model  [PDF available]

Solving the 'Heisenberg effect' in biological diffusion  [PDF available]

Population estimation by mark-recapture experiments: The simplest method [PDF available]

Estimating the population density by the least labor  [PDF available]

Describing the random dispersal of organisms more easily [Preprint version of manucript available]

Why does biodivesity generate stability ?   [PDF available]

Exploring the mystery in the spatial distribution of organisms  [PDF available]

Identifying the environmental factors determining the abundance of organisms  [PDF available]

Global warming shifts the geographical distribution of plant disease  [PDF available]

Controlling the probability of insect invasions  [PDF available]

Why do alien species expand their spatial distribution in an accelerative manner ?  [PDF available]

Invasion of fire blight disease  

Density of herbivorous insects is lower in densely planted fields  [PDF available]

However, the survival rate of insects is higher in densely planted fields  [PDF available]

Increase in the number of generations of insects under global warming [PDF available]

Appropriate transformation for population counts  [PDF available]

How can we estimate the abundance of insects  [PDF available]

New quarantine procedure proposed by USA: its evaluation  [PDF available]

Importance of selecting an appropriate measure of density [PDF available]

        

Statistical Modeling Unit, NIAES