BIOLOGY 2F03 Lecture Notes - Lecture 1: David Schindler, Epiphyte, Remote Sensing
15 Dec 2016
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Yellow-rumped warblers move their feeding zone upward . Comparing 2 streams: the forestry has destroyed one. [deforested basin] stream completing (clear-cutting led to soil erosion; thus the soil is not fertile) versus. the other stream which has not been clear-cut [forested basin] Nutrient loss is large when the forest is cut: reason: 90% of nutrients is found in organic components of soil. These components disappear after the trees are cut: experimental lake area (w. on david schindler) Al 1990s paper: question: why do horses and cattle help restore the guanacaste forest of costa. Fundamental and applied ecology: lfh (litter fermentation humus) horizons: found in upland soils. Humus: decaying matter: a horizons: mixture of mineral material; clay, iron, aluminum, silicates and soluble organics leach out gradually, b horizons: depositional; materials leached from a settle in b. Is it enough to know mean values or is something else also.
