Growing Returns

Selected tag(s): monarch

Latest population count could spell doom for the monarch. Unless we act now.

The Western Monarch Thanksgiving Count began in 1997, when scientists first noticed declines and started to track the population.

In the years since, the western monarch butterfly population (the smaller of the two North American populations, which overwinters on the California coast) has dropped dramatically, and this year’s preliminary data is especially alarming.

Early reports on this year’s count suggest that populations have dropped 86 percent since last year, with the population at less than 0.5 percent of historic levels. Approximately 20,000 monarchs were counted at the monarch’s overwintering sites this Thanksgiving, compared to 148,000 counted last year. The Xerces Society estimates that the overall population will be around 30,000.

So far, 97 of the monarch’s overwintering sites along the California coast have been counted, representing approximately 75 percent of the total western population. (Photo Credit: Amy Marbach)

This is a grim number, especially when you consider studies showing that 30,000 butterflies is the average population needed to avoid a complete collapse of the western migration, and extinction of the entire western population.

It’s clear that western monarchs cannot survive even one more year of decline like this one. Read More »

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Why I have more hope than ever for the monarch’s recovery

A monarch butterfly nectars on an eryngo plant at Wagley Ranch on October 11. Read more about the monarch and explore David’s notes from the field here.

I recently returned to Wagley Ranch near Mineral Wells, Texas to work with some of the very first landowners participating in the emerging Monarch Butterfly Habitat Exchange.

The visit was the last on my fall field testing tour of the state, during which I visited five Texas ranchers in just six weeks. It was great to end on a high note at Wagley Ranch, where we had the chance to see southward migrating monarchs. We even saw one monarch feeding on an eryngo plant.

It was a wonderful reminder of why our work with these ranchers is so important, because the habitat they are restoring and enhancing is providing a new home to monarchs. Each acre of healthy habitat restored will support 70 butterflies on their migration to their wintering grounds in Mexico.

So how do we bring these activities to scale in time to save the monarch from extinction? With the right tools, the right practices, and the right people. Read More »

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