近年研究主題

  1. 土壤無脊椎動物群聚與多樣性
  2. 蚯蚓的功能群、群聚生態學與穩定同位素生態學
  3. 土壤無脊椎動物對生態系統功能的影響
  4. 土壤無脊椎動物、微生物與植物之交互作用
  5. 蚯蚓系統分類與生物地理

研究室簡介

土壤生態學 (soil ecology) 結合了土壤科學 (soil science)、生態學 (ecology)、動物學 (zoology)、植物學 (botany)、微生物學 (microbiology) 與生物地球化學 (biogeochemistry),是一門跨領域的新興學科,旨在探討土壤中生物與生物、生物與環境間複雜的交互作用。

土壤是許多動物賴以生存的棲地,大如蜈蚣、馬陸、昆蟲與蚯蚓,小至線蚓、跳蟲、蟎與線蟲,還有許多真菌、古菌與細菌等微生物 。這些為數眾多的生物,彼此間形成複雜的互動關係,例如競爭與捕食 。這些發生在地底下的交互作用,也會改變生長在土壤內植物的營養與生理,進而影響地上部的食物網。有人稱土壤為「窮人的熱帶雨林」,因為小小一平方公尺的土壤裡,常常就有數百種、高達數萬隻的線蟲、跳蟲與蟎,以及上百隻的蚯蚓。這個就藏在每個人腳底下的多樣性,我們對牠們分類與生態的瞭解,卻是少之又少。

土壤在物質循環裡扮演著關鍵角色,對生態系統功能 (ecosystem function) 有無法忽視的重要性。陸域生態系中,有大約90%的初級生產力最終進到土壤,由土壤生物分解。以碳循環來說,土壤是陸域生態環境裡最大的碳庫,其碳存量是全球地表植被加起來的兩倍。土壤中的微生物分解有機質,過程中會釋出二氧化碳,擴散到地表,稱之為土壤呼吸。土壤呼吸佔陸域生態系二氧化碳排放量的一半以上,比動植物加起來還高,更是燃燒化石燃料的近10倍。這些排放會隨著全球暖化與土地利用而改變,但我們尚無法有效估算變化的幅度,對相關機制缺乏系統性的認識,也不清楚土壤動物在其中扮演的角色。

我們的團隊結合實驗、觀察與野外採樣,搭配DNA定序 、元素分析、穩定同位素等技術,探索 (1) 土壤動物的多樣性;(2) 土壤動物的功能群、群聚組成與物種間的交互作用;(3) 土壤動物、微生物與植物的交互作用;(4) 上述交互作用對生態系統功能的影響。研究的範疇包含族群 (population)、群聚 (community) 與生態系 (ecosystem),以及森林、農田、里山與都市綠地等生態環境。目前的研究對象包含蚯蚓、線蟲與小型節肢動物,但也非常歡迎對其他土壤動物(例如幼體生活於土壤中的昆蟲)有興趣的人加入我們的行列!

代表著作

Publications

  1. Szlavecz, K., Chang, C.-H.*, Bernard, M.J., Pitz, S.L., Xia, L., Ma, Y., McCormick, M.K., Filley, T., Yarwood, S.A. Yesilonis, I.D., Csuzdi, C. (2018) Litter quality, dispersal and invasion drive earthworm community dynamics and forest soil development. Oecologia 188, 237–250. (*corresponding author)
  2. Chang, C.-H., Johnston, M., Görres, J., Davalos, A., McHugh, D., Szlavecz, K. (2018) Co-invasion of three Asian earthworms, Metaphire hilgendorfi, Amynthas agrestis and Amynthas tokioensis in the USA. Biological Invasions 20, 843–848.
  3. Porco, D., Chang, C.-H., Dupont, L., James, S., Richard, B., Decaëns, T. (2018) A reference library of DNA barcodes for the earthworms from Upper Normandy: biodiversity assessment, new records, potential cases of cryptic diversity and ongoing speciation. Applied Soil Ecology 124, 362–371.
  4. Pitz, S.L., Megonigal, J.P., Chang, C.-H., Szlavecz, K. (2018) Methane fluxes from tree stems and soils along a habitat gradient. Biogeochemistry 137, 307–320.
  5. Görres, J.H., Connolly, S.T., Chang, C.-H., Carpenter, N.R. , Keller, E.L., Nouri-Aiin, M., Schall, J.J. (2018) Winter hatching in New England populations of invasive pheretimoid earthworms Amynthas agrestis and Amynthas tokioensis: a limit on population growth, or aid in peripheral expansion? Biological Invasions 20, 1651–1655.
  6. Shen, H.-P., Chang, C.-H., Chih, W.-J. (2018) Two new earthworm species of the genus Drawida (Oligochaeta: Moniligastridae) from southwestern Taiwan. Zootaxa 4496, 302–312.
  7. Thomson, S., Pyle, R.L., ...... Chang, C.-H. et al. (2018) Taxonomy based on science is necessary for global conservation. PLoS Biology 16(3), e2005075. (Authors listed alphabetically after the first and second authors)
  8. Taheri, S., James, S.W., Roy, V., Decaëns, T., Williams, B.W., Anderson, F., Rougerie, R., Chang, C.-H., Brown, G.G., Cunha, L., Stanton, D.W.G., Da Silva, E., Chen, J-H., Lemmon, A., Bartz, M., Baretta, D., Barois, I., Lapied, E., Coulis, M., Dupont, L. (2018) Complex taxonomy of the ‘brush tail’ peregrine earthworm Pontoscolex corethrurus. Molecular Phylogenetics and Evolution 124, 60–70.
  9. Chang, C.-H., Szlavecz, K., Buyer, J. (2017) Amynthas agrestis invasion increases microbial biomass in Mid-Atlantic deciduous forests. Soil Biology and Biochemistry 114, 189–199.
  10. Csuzdi, C., Chang, C.-H.*, Pavlicek, T., Szederjesi, T., Esopi, D., Szlavecz, K. (2017) Molecular phylogeny and systematics of native North American lumbricid earthworms (Clitellata: Megadrili). PLoS ONE 12(8), e0181504. (*corresponding author and co-first author)
  11. Chang, C.-H., Szlavecz, K., Filley, T., Buyer, J., Bernard, M., Pitz, S. (2016) Belowground competition among invading detritivores. Ecology 97(1), 160–170.
  12. Chang, C.-H., Szlavecz, K., Buyer, J. (2016) Species-specific effects of earthworms on microbial communities and the fate of litter-derived carbon. Soil Biology and Biochemistry 100, 129-139.
  13. Chang, C.-H., Snyder, B.A., Szlavecz, K. (2016) Asian pheretimoid earthworms in North America north of Mexico: An illustrated key to the genera Amynthas, Metaphire, Pithemera, and Polypheretima (Clitellata: Megascolecidae). Zootaxa 4179(3), 495–529.
  14. Chang, C.-H., Chuang, S.-C., Wu, J.-H., Chen, J.-H. (2014) New species of earthworms belonging to the Metaphire formosae species group (Clitellata: Megascolecidae) in Taiwan. Zootaxa 3774 (4), 324–332.
  15. Chang, C.-H., James, S. (2011) A critique of earthworm molecular phylogenetics. Pedobiologia 54S, S3-S9.
  16. Chang, C.-H., Shen, H.-P., Chen, J.-H. (2009). Earthworm Fauna of Taiwan. National Taiwan University Press, Taipei, Taiwan. Pp. 174.
  17. Chang, C.-H., Rougerie, R., Chen, J.-H. (2009) Identifying earthworms through DNA barcodes: pitfalls and promise. Pedobiologia 52, 171-180.
  18. Chang, C.-H., Lin, S.-M., Chen, J.-H. (2008) Molecular systematics and phylogeography of the gigantic earthworms of the Metaphire formosae species group (Clitellata: Megascolecidae). Molecular Phylogenetics and Evolution 49, 958-968.
  19. Chang, C.-H., Lin, Y.-H., Chen, I-H., Chuang, C.-S., Chen, J.-H. (2007) Taxonomic re-evaluation of the Taiwanese montane earthworm Amynthas wulinensis Tsai, Shen & Tsai, 2001 (Oligochaeta: Megascolecidae): Polytypic species or species complex? Organisms Diversity and Evolution 7, 231-240.
  20. Chang, C.-H., Chen, J.-H. (2005) Three new species of octothecate pheretimoid earthworms from Taiwan, with discussion on the biogeography of closely related species. Journal of Natural History 39, 1469-1482.

預計開設課程

  • 無脊椎動物學
  • 無脊椎動物學實驗
  • 土壤生態學
  • 族群生物學
  • 土壤生態學專題討論