Takahiro Sakamoto

Oct 21, 2024 | biorxiv.org | Takahiro Sakamoto

AbstractLocal adaptation is widely seen when species adapt to spatially heterogeneous environments. Although many theoretical studies have investigated the dynamics of local adaptation using two-population models, there remains a need to extend the theoretical framework to continuous space settings, reflecting the real habitats of species.

Jul 23, 2024 | japan-forward.com | Takahiro Sakamoto

Read the full story on Japan 2 Earth - Hokkaido's Wind Power Dilemma: Balancing Energy Needs with Environmental ImpactsJapan's northernmost regions, like Wakkanai City in Hokkaido, have seen a surge in onshore wind power in recent years. This growth is partially driven by increasing electricity demand arising from the rapid spread of generative AI and the expansion of data centers. Another factor is the area's excellent wind conditions, considered the best in the country.

Jun 22, 2024 | biorxiv.org | Takahiro Sakamoto |James Whiting |Sam Yeaman |Kokuritsu Idengaku Kenkyujo

AbstractLocally adapted traits can exhibit a wide range of genetic architectures, from pronounced divergence at a few loci to small allele frequency shifts at many loci. The type of architecture that evolves depends strongly on migration rate, as weakly selected loci experience swamping and do not make stable contributions to divergence.

Jun 13, 2024 | japan-forward.com | Takahiro Sakamoto

Read the full story on Japan 2 Earth - Hokkaido Town Pioneers Next-Gen Biofuel and Power Generation from Livestock WasteLivestock biomass energy is a hot topic. It is a system of fermenting manure from livestock to produce biogas that is utilized to generate electricity. Shikaoi Town in Hokkaido began a livestock biomass energy initiative 17 years ago. Now, the town is using this energy for both agriculture and aquaculture. Products produced include mangoes and sturgeons farmed for high-end caviar.

May 21, 2024 | japan-forward.com | Takahiro Sakamoto

Read the full story on Japan 2 Earth - Endangered Eastern Marsh Harrier Under Threat from Wind Power Expansion in HokkaidoThe eastern marsh harrier is a bird of prey and the apex predator of wetland and grassland ecosystems. Called chuhi in Japanese, the species is now threatened with extinction. Major factors in this trend include changes in the natural environment and encroachment on the birds' nesting areas by development activities.