Monthly Archives: August 2015

Back to school

Kids are going back to school this week in the northeast United States, where I live. And some of them will learn about the seasons in their classrooms. One of the great things about plant phenology is that it’s so … Continue reading

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Friday favorites: Hawaii grassland

This PhenoCam is looking out over a grazed grassland on the Big Island of Hawaii towards Mauna Kea.

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Layer cake: on canopy gaps, leaf area, and photosynthesis

By now you are familiar with PhenoCams. However, a few extraordinary cameras exist in the network. In general, PhenoCams track seasonality and the structure of the vegetation in a top-down fashion, mostly looking down onto the the top of the … Continue reading

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Indications of spring

In 1789, British naturalist Robert Marsham published a chart in the Philosophical Transactions of the Royal Society called “Indications of spring.” In this chart he lists the first day of the year on which he noticed particular events at his … Continue reading

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Friday favorites: Rainforest landscape

In the tropics, trees don’t always have synchronized seasons of leaf growth, flowering, and leaf drop because there is no cold winter to synchronize them. In rainforests like this one in Panama, the trees across a landscape can simultaneously be … Continue reading

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Marking shifts in time-series

One of the tasks we ask you to do in Season Spotter (Image Marking) is to mark places where there is an obvious shift in the camera’s view over time. We do this by extracting the center vertical line of … Continue reading

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How do they get the camera up there?

If you have been participating in Season Spotter, no doubt you’ve seen tens – if not hundreds – of photos taken from above the top of the forest canopy. And, you’ve probably wondered, “How do they get the camera up … Continue reading

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