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Cyclobalanopsis glaucoides

Ailaoshan National Nature Reserve
Cyclobalanopsis glaucoides
Cyclobalanopsis glaucoides

Organized once again by Katherine, here's today's entry with an introduction from her:

Continuing the series for UBC's Celebrate Research Week">UBC Celebrate Research Week is another entry thanks to Dr. Roy Turkington, this time from his research undertaken in collaboration with Professor Zhou Zhe-khun. Dr. Turkington informed me that the first image is a general view of the canopy at the Ailaoshan Reserve. The second image shows one of three treatment plots of research being conducted by M.Sc student, Jessica Lu, where they are testing the effects of litter on soil nutrients, soil invertebrates, and germination & establishment of seedlings. The final image is from Jin Jin Hu (PhD student), showing his enclosures for testing the effects of rodents (and other seed predators) on germination and establishment of seedlings. Dr. Turkington writes:

Yunnan Province in southwestern China is a biodiversity hotspot containing more than 20000 species of higher plants (6% of the world's total). The biodiversity of this region is under threat from loss of habitat due to logging and the planting of economic plants. Fifteen to twenty percent of higher plant varieties are endangered, threatening the existence of 40,000 species of organisms related with them. One-third of all species of oak (approximately 150 species, Quercus plus Cyclobalanopsis) in these Asian evergreen broad-leaved forests belong to the genus Cyclobalanopsis and one of the dominant species in this genus is Cyclobalanopsis glaucoides. As a dominant species, it provides a major structural component of these diverse forests, yet seedlings of Cyclobalanopsis glaucoides are rarely observed, and even in years of higher acorn production, the number of oak seedlings is not significantly increased. Thus, an understanding of the factors that influence the long-term survival of Cyclobalanopsis glaucoides is critical to the maintenance of these forests.

These studies began in 2006 and are on-going. Specifically, we are testing if there is a relationship between large weather cells, such as the Pacific Decadal Oscillation and the Southern Oscillation Index, with acorn production, and if acorn germination & seedling establishment is affected by weevils, small mammals, birds, or the quality and quantity of litter in the understorey of these forests.

5 Comments

Do you havea close up picture of the leaf?

Unbelievable how thick a canopy this is, yet, seeds are not obvious.

General aspect, both inside and out quite similar to broad-leaved evergreen forests seen in California.

Looks like exclosures to me! ;)

They hire spiders to build them.

thank you for a wonderful week

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