Summary Report
15th APBON Web Seminar

1. Date: February 2nd, 2023
Time: 14:00-16:00 in Japan, South Korea
12:00-14:00 in Cambodia, Thailand, Indonesia, Vietnam
10:45-12:45 in Nepal
13:00-15:00 in Malaysia, Philippines, China
19:00-20:00 (1st February) in Hawaii
2. Location, Participants
Onsite venue: W-1-Lecture Room 202, ITO campus, Kyushu university.
Online: ZOOM Meeting (Hybrid)・Total participants: 29 participants from 7 nationalities
On-site participants: 24 participants (20 participants and 4 secretariats)
On-line participants: 5 participants
・MC: Dr. Yayoi Takeuchi (NIES), Mr. Sou Tomimoto (Kyushu University)
3. Program:
Dr. Takeuchi firstly introduced the 3 undergraduate students as volunteer participants.
Session 1:
Moderator: Dr. Yayoi Takeuchi (National Institute of Environmental Studies)
Presentation1:
Mr. Wataru Nakamizo (Kyushu University)“Environmental drivers of the Great Orange Tip population dynamics in differentregions”
Summary of presentation
Mr. Nakamizo introduced their research progress on the environmental drivers of thepopulation of Great Orange Tip Butterfly in different regions in Okinawa. Mr. Nakamizo
especially focused on the environmental factors regulating the population dynamics, thepopulation on Ishigaki and the main island of Okinawa exhibit different periodicities
and fluctuations. Mr. Nakamizo pointed out that the population on each island wereregulated by different environmental factors and exhibit different fluctuations, the maindrivers were annual cycle of temperature in mainland Okinawa Ishigaki although it wasmaximum wind speed and rainfall in Ishigaki.

Presentation2:
Mr. Shogo Noguchi (Kyushu University)“Prey compositions and predatory behavior of Japanese tiny ant-eating spiders”
Summary of presentation
Mr. Noguchi introduced the details of predatory behaviors in hadrotarsinae spiders
which are scarcely known, especially the prey compositions and predatory behavior insome Japanese hadrotarsinae because the hadrotarsinae spiders do not build webs forprey capture except for Dipoena spp., which are different from other spiders. Based on
the research, he explained that the species fed only ants except some species, which fed
other prey taxa except for ants, and introduced predatory behaviors how to captures theants with throwing sticky silks or biting.

Presentaton3:
Mr. Sou Tomimoto (Kyushu University)“Somatic mutation may contribute to the genetic diversity of the tropical tree population”
Summary of presentation
Mr. Tomimoto mainly discussed the accumulation of somatic mutations due to thelongevity of trees. Based on the hypothesis that somatic mutations within trees may
contribute to genetic diversity of the tree population, he discussed how accumulation ofSomatic mutations differs between slow- and fast-growing species with different
lifespans and different tree architecture. He concluded that Accumulation of Somatic
mutations are associated with the age of tree, rather than its height, and Genetic
diversity of tree population is also stored among branches within a single long-lived tree.

Presentaton4:
Ms. Chihiro Myotoishi (Kyushu University)“What factors effect the bryophyte species richness?.”
Summary of presentation
Ms. Myoutoishi mainly introduced the recent research done in Mt. Iwara, which recorded
elevation and all bryophyte species in the quadrats and its substrate type, rock, livingtree, decayed tree, soil, leaf. She suggested two points as study summaries, Byophyte
species richness is more influenced by substrate and water availability than elevation
within 268 - 869 m, and the species richness growing on rocks is influenced not only the
relative rock area, but also by the relative water surface area. This may be due to theheterogeneity of micro-habitats on the rock surface, which is further increased by thehigh water availability.

Presentation 5:
Mr. Takeru Kodama (Kyushu University)“The calling song of Meimuna Opalifera; difference of the functions between the former
and the latter part of the song”
Summary of presentation
Mr. Kodama first introduced his research topic on acoustic communication in which only
males vocalize by focusing on the structure of Cicadas’ tymbal muscles. Exploring thehypothesis that the song patterns of the cicadas, Meimuna opalifera changes in themiddle, those divided two patterns seem to contain different information or functions, heemphasized that it was the first study which showed that the two parts of the callingsong of M. Opalifera had different functions though it is still an open question to beresearched.

Session 2:Moderator Mr. Sou Tomimoto (Kyushu University)
Presentation1:
Dr. Sunita Chaudhary (ICIMOD)

“Impacts of changing cryosphere on biodiversity and ecosystem services: case study fromLangtang National Park”
Summary of presentation
Dr. Chaudhary mainly reported the impacts of changing cryosphere on biodiversity andecosystem services from her recent research work on Langtang National Park. After
explanations of the importance of ecosystems which strongly connected to the indicatorof cryosphere such as snow, glacier, ice and permafrost, she generally introduced how thetemperature rise seriously affected the Himalaya region due to the water increasecausing flood and landslides. Dr. Sunita especially pointed out that the tree covered areasin Himalaya region is remarkably increasing in recent 20 years, and tree canopy cover(TCC) shows negative changes especially in high elevated corridor area. She alsoemphasized we can see many species even at 4000m elevated area which never seen in
2000s, the treeline itself is shifted to the upper side remarkably and it seriously affectedto the habitat of mammals and bird as well.

Presentation2:
Dr. Alice Hughes (Hong Kong University)“Frameworks to identify and protect ecosystem services,
Summary of presentation
Dr. Hughes mainly focused on the methodological aspect and discussed how to takebalance among key ecosystem services focusing on the factors; Ecological andconservation redlines, Target setting and Landscape scale solutions. In target setting
factors especially, Dr. Alice introduced the method for assessing biases and developing
accurate maps of species diversity through the bees as a major pollinator group crucialfor food security. She also emphasized the importance of translating science to policy
landscape wide and converting data into policy. She concluded that we should target apolicy to provide services based on scientific evidence such as accurate data, appropriate
targeting in order to provide long-term effective solutions.

Closing remarks from APBON co-chair Yongyut Trisrat and Hiroyuki Muraoka
Dr. Yongyut briefly introduced the recent activities of biodiversity conservation such as
COP27 on last October and COP CBD 17 on December where there were many potential
opportunities for APBON to approach policy makers. He also thank Dr. Yahara andKyushu university for hosting this 15th APBON web seminar.

Photo Session