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The joe gardener Show - Organic Gardening - Vegetable Gardening - Expert Garden Advice From Joe Lamp'l

380-Monarch Butterflies and Milkweed: A Remarkable Story of Co-evolution-Encore Presentation

The joe gardener Show - Organic Gardening - Vegetable Gardening - Expert Garden Advice From Joe Lamp'l

Joe Lamp'l

Hobbies, Home & Garden, Leisure

4.6 • 1.7K Ratings

🗓️ 29 August 2024

⏱️ 57 minutes

🧾️ Download transcript

Summary

The annual monarch butterfly migration south starts this month, so I thought it would be a good time to revisit my conversation with ecologist and evolutionary scientist Dr. Anurag Agrawal, an expert on monarch butterflies and milkweed — the only type of plant that monarchs lay their eggs on.

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Transcript

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0:00.0

Hi everybody this is Joe Lample the Joe behind Joe Gardner and welcome to the Joe Gardner show

0:05.2

Today's episode is curated from the archives and I am so glad to be republishing it today

0:11.4

It is a conversation I had with Dr. Anarag Agrual,

0:15.0

author of the best-selling book, Monarchs and Milkweed.

0:18.0

I suspect a good number of you have read that book,

0:21.0

and if you haven't, put it on your list. It was and is a

0:24.4

fascinating dive into the symbiotic relationship of the two and some

0:28.6

many geeky information about both the monarchs and the milkweed that will probably have you soaking this

0:34.3

episode up not only for the information but nearly everything about our conversation

0:39.1

is still relevant today except for the population of overwintering monarchs in Central Mexico's

0:45.4

forest. The newest data reported as of February 2024 provides a scientific

0:51.3

indicator of the monarch's current population status and the results are alarming.

0:55.6

The most recent estimates of the total population of eastern monarch butterfly colonies

1:00.4

wintering in central Mexico's forest during the 2023-24 winter season

1:05.8

occupied only 2.2 acres 59% less than the previous year when scientists observed that population spanning 5.5 acres.

1:16.7

This is the second lowest number ever recorded.

1:20.0

The World Wildlife Federation and its partners conduct the annual survey in which experts

1:24.7

measure the area of forest where monarch butterflies hybrid 80 twinter, and the survey provides

1:29.8

a scientific indicator of their population status each year. The reasons cited for the

1:35.1

near all-time low include the usual ones such as habitat loss including increased

1:40.3

forest degradation where most monarchs cluster in colonies during the winter.

1:44.5

Pesticide use, in this past year, severe drought conditions

...

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