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Nothofagus Gradient on Mt. Robert
February 17, 2012

As you follow the trail up Mt. Robert in St. Arnaud, you will notice that the dominant Nothofagus (beech tree) canopy type changes with altitude. At the top of the tree line (around 1300m), the dominant canopy is comprised primarily of a monoculture of N. solandri (black/mountain beech). As you descend, you will see increasing N. menziesii (silver beech), eventually forming a monoculture (around 1200m), and at lower altitudes (1100m and below), N. (more...)

tags: Biogeography of New Zealand, Life in Extreme Environments, Nelson Lakes

location: St Arnaud, Tasman, New Zealand

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Mason Bay Grasses
January 22, 2012

This photo exhibits the invasive, introduced grass Ammophila arenaria, commonly known as European Marram Grass or European Beach Grass. The grass was introduced to the Stewart Island west coast as part of farming efforts in the 1930s and has been rapidly spreading ever since. This hardy grass is approximately one meter in height and has deeper roots than the native grasses it replaced. (more...)

tags: Conservation Biology, Field trip Stewart Island

location: Southland, New Zealand

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fancy

Spoon-Leaf Sundew
January 21, 2012

This photo is of the species Drosera spatulata, commonly known as the Spoon-Leaf Sundew. As a carnivorous angiosperm (flowering plant), it feeds on invertebrates, primarily small flies and other insects. Drosera spatulata is found throughout New Zealand, eastern Australia, and South East Asia, and is thought to have evolved in New Zealand and then spread west and north. (more...)

tags: Biogeography of New Zealand, Field trip Stewart Island

location: Southland, New Zealand

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