Author Archives: Andrew Richardson

About Andrew Richardson

I am an Associate Professor in the Department of Organismic and Evolutionary Biology at Harvard University

It’s finally springtime in the Northeast

Last time I posted, I commented on the fact that winter temperatures in New Hampshire were almost 7°C warmer in 2016 than 2015, and that “spring 2016 is just around the corner.” It turns out that spring has been a … Continue reading

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Spring is just around the corner!

It’s been a really unusual winter, with almost no snow in the Northeast, and some incredibly warm temperatures. Last winter, at our research site in New Hampshire, the mean air temperature from January to mid-March was -8.5°C (17°F), and with … Continue reading

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Flowering in winter? It’s witch-hazel!

The witch-hazel genus (Hamamelis) consists of five species of deciduous shrubs. Three of these are native to North America, while two are native to the temperate regions of Asia. What is remarkable about these species is when they flower. The … Continue reading

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Warmer temperatures allow plants to stay green longer in autumn

In September, I wrote a blog post about our research at the SPRUCE site in Minnesota, where a Department of Energy project is trying to answer the question: What effects will warmer temperatures and rising atmospheric carbon dioxide have on … Continue reading

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The end of autumn

It’s early December, and in Cambridge, MA, most of the trees have shed all their leaves by now. There are exceptions: some of the red oaks are still holding on to a few crispy-dry, brown leaves (the same is true … Continue reading

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Autumn colors

It’s late autumn in northern New England, and this year the colors are beautiful. I spent last weekend with my family in the White Mountains of New Hampshire – we went for an afternoon walk, and I was amazed by … Continue reading

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Reporting from the Phenology 2015 meeting in Kuşadasi, Turkey

Greetings, Season Spotters! I’m writing from the eastern coast of the Mediterranean Sea – I’m in Kuşadasi, Turkey, for Phenology 2015: The Third International Conference on Phenology (Phenology 2010 was in Dublin, Ireland, and Phenology 2012 was in Milwaukee, Wisconsin). … Continue reading

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