Symposium

Frontiers in ecological data analysis: different methods to detect causal inference from observational data

Organizers: Masahiro Nakayama (Hokkaido University), Hideyuki Doi (Kyoto University), Keiichi Fukaya (National Institute for Environmental Studies), Yutaka Osada (Tohoku University)


Recent progress in modern statistical methods has made inferences of causal relationships in ecological systems, such as environment-population relationships and interactions among species, based on observational data more powerful and sophisticated. In this session, scientists studying causal inference based on different statistical methods and approaches will give their up-to-date achievements and discuss how we can further promote the use of observational data for better understandings of ecological dynamics and effective biodiversity conservation.

 

Speakers and Titles

Introduction

Masahiro Nakaoka (Hokkaido University)

Why and why not? Using “structural equation modeling” to understand natural systems 

Jonathan Lefcheck (University of Maryland Center for Environmental Science)

Detecting causal relationship among multiple variables by SEM: a case study in rocky intertidal sessile community

Yuan Yao (Hokkaido University)

A challenge to untangle the interaction network between flower-associated arthropods using SEM

Mito Ikemoto (Hirosaki University)

Exploring the causal relationship between insecticide use and sharp declines in dragonfly populations using an integrated causal inference approach

Kosuke Nakanishi (National Institute for Environmental Studies)

Causal network inference by EcohNet: an approach from nonlinear time series analysis to causality

Kenta Suzuki (RIKEN BRC)

Application of causal inference to temporal interaction networks: relationship between temporal variation of network motifs and community stability

Yuri Otomo (Tohoku University)

Potential electrical signal transfer among wild mushrooms

Yu Fukasawa (Tohoku University)

Concluding remarks

    Hideyuki Doi (Kyoto University)


Contemporary River Ecology Studies 

Organizers: Takuya Hosoki, Ryo Futamura, Chiharu Furusawa (Hokkaido University)


Frontier in monitoring of the sika deer

Organizer: Kazuya Kobayashi (Kyoto University)

Speakers and Titles

Introduction
 Kazuya Kobayashi (Kyoto Univ)

State-space modeling: methods and topics on population monitoring
 Keiichi FUKAYA (NIES)

Modeling sika deer population dynamics using three types of population density indices at Ashiu
 Mizuki INOUE (Nihon University)

Current status and issues in monitoring of sika deer in Hokkaido
 Yoshihiro INATOMI (Hokkaido Research Organization）

Problems of monitoring and abundance estimation of sika deer in Japan
 Hayato IIJIMA (FFPRI)


Toward an understanding of socio-eco-evolutionary dynamics

Organizer: Tomoki Ishiguro, Shunsuke Utsumi (Hokkaido University)


Speakers and Titles

Emergence of unique biological functions triggered by microbe-driven interspecific relationships
 Yuya Sato (AIST)

Toward an understanding of Socio-eco-evo feedback: a perspective from urban evolution of white clovers
 Tomoki Ishiguro (Hokkaido Univ)

A framework for social-ecological-evolutionary feedback: A case study of plant adaptation to urban heat island
 Yuya Fukano (Chiva Univ)

Flexible use of flower resources by alien bumblebee –monitoring from population scale to landscape scale–
 Yoko Nishimura (Hokkaido Research Organization)


Idea for the brown bear population management

Organizer: Hiroyuki Matsuda (Yokohama National University)


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