Author Archives: Anurag Agrawal

Jigsaw #3 – Specialists vs. Generalists

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Last week in the Plant-Interactions-Group we had our 3rd JIGSAW session. Our topic was specialists vs. generalists in plant-herbivore interactions.  I was inspired to cover this topic because it is a persistent issue, one that has been discussed widely in ecology for decades. Are specialists and generalists fundamentally different in their ecological and evolutionary relationships with plants?  Is this an… Read more

The oldest butterfly?

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It’s unclear when humans became humans.  Presumably it was a gradual growth of our consciousness over the eons.  There are some things, however, that appear to distinguish us from most other animals.  For example, our artistic depictions.  From the deepest, darkest caves have emerged pictures of humanity from thousands of years ago.  And in an Egyptian tomb, that of Nebamun,… Read more

Monarch population size over winter 2016-2017 announced!

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The estimates of the monarch butterfly overwintering population were announced Thursday February 9th by WWF Mexico.  The butterflies are so dense at their dozen or so mountain-top clustering sites that overwintering butterflies cannot be counted.  Instead, the area of forest that is densely coated with butterflies (at about 5,000 butterflies per square meter looking up into the canopy) is estimated… Read more

PIG: The jigsaw experiment

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Cornell’s Plant-Insect Group, affectionately known as PIG, has been meeting for weekly discussions every semester for at least 12 years.  In the old days, Paul Feeny and Dick Root would join us for inspiring discussions, merging the past with the future.  These days, the Ithaca group, digitally connected with folks in Geneva, NY, is frequently a gaggle of over 30… Read more

Where do monarch butterflies come from?

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The plight of monarch butterflies is often in the news and many scientists around the world are working hard to understand their annual migratory cycle.  How do the monarchs produced during summer in the northern reaches of America contribute to the overwintering population in Mexico?  The origins of monarch butterflies that make it to Mexico has been hotly debated and… Read more

Winter Walks 2017 #1

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Winter Walks are a tradition of the Ecology and Evolutionary Biology Department at Cornell University, started by Professor Peter Marks in the 1970s.  Winter walks grew out of the teaching of Plant Ecology field labs (taught in the fall), as students wanted to continue Friday afternoon outings in the “spring” semester.  So while many animals are dormant, gorges are icy,… Read more

Monarch book!

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My new book, Monarchs and Milkweed, a highly illustrated popular science book will be available in late March from Princeton University Press.   Here is what Carl Safina, author of Beyond Words: What Animals Think and Feel, says: It’s impossible to imagine the world without monarch butterflies. But they face mounting challenges. This clear, fact-packed book looks at this astonishing and… Read more

Welcome to the new lab page!

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Hi folks! Welcome to the revised landing page, with the added benefit of blog posts.  You’ll see posts related to interesting ecology and evolutionary biology, monarch butterflies, and and our plant-insect interactions weekly discussions here.  For this first post, I simply want to let you know that past “Lab News” back to 2009 can be found here.… Read more