Leaf Traits and Insect Herbivory of Six Native Hardwood Species in Taiwan
2011
Hochschulschrift
Zugriff:
99
From April to November, 2009, we investigated the leaf area loss (LAL, to quantify insect herbivory) and leaf traits in the seedlings of 6 native hardwood species, Machilus thunbergii, Cyclobalanopsis glauca, Michelia compressa var. formosana, Zelkova serrata, Liquidambar formosana and Sapindus mukorossii in Chitou nursery of the Experimental Forest, National Taiwan University. Fertilization and shading were applied to examine the effects of light regime and nutrient supply on these 6 species of different successional stages. Compared to the late-successional species (Mac. thunbergii, C. glauca, Mic. compressa var. formosana), the early-successional species (Z. serrata, L. formosana and S. mukorossii) were higher in LAL and leaf N and lower in leaf toughness. Leaf total phenols were also significantly different between species, but the difference was not consistent with successional stages. Fertilization had no significant effect on LAL, but resulted in higher leaf N, lower leaf total phenols, and lower leaf mass per area (LMA). Shading lowered LAL in the 2nd sampling, leaf total phenols, LMA, and toughness, but increased leaf N. There was significantly positive correlation between LAL and leaf N, and negative correlations between LAL and total phenols, LMA, and leaf toughness in the 1st sampling. In the continuous monitoring, the maximum of leaf area loss was in significantly positive correlation with leaf N, and in negative correlation with LMA and leaf toughness. There was negative correlation between leaf N and total phenols, positive correlation between LMA and leaf N, and positive correlation between LMA and total phenols in the 1st sampling stage. In conclusion, fertilization and shading treatments would affect leaf traits. The early-successional species with lower leaf toughness and higher N suffered higher loss of herbivory. The effects of fertilization and shading on herbivory were not conclusive in this relatively short-term study.
Titel: |
Leaf Traits and Insect Herbivory of Six Native Hardwood Species in Taiwan
|
---|---|
Autor/in / Beteiligte Person: | Liu, Chuan ; 劉佺 |
Link: | |
Veröffentlichung: | 2011 |
Medientyp: | Hochschulschrift |
Sonstiges: |
|