Growing Returns

Selected tag(s): mexico

Monarch butterfly population down 53% from last year. Here’s the swift action we need.

Last week, scientists released results from the latest count of the eastern monarch butterfly population — the main population that migrates east of the Rockies and overwinters in Mexico. The 53% drop from just last year was an unexpected and staggering outcome that left conservationists like me downcast, but ready to act.

While many of us were expecting to see some small decline, this significant drop is especially alarming because it indicates that the monarch population is below the threshold at which scientists predict the migration could collapse. Read More »

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Raise a glass (of tequila!) to celebrate this endangered bat’s recovery

When the lesser long-nosed bat was first listed as an endangered species 30 years ago, there were fewer than 1,000 bats in existence. Today, the bat’s population has grown to an estimated 200,000 bats living in 75 roosts across the southwestern United States and Mexico.

A lesser long-nosed bat feeding on an Agave blossom at night in Tucson, Arizona.

The lesser long-nosed bat is one of only three nectar-feeding bat species in the U.S. – uniquely providing valuable ecosystem services through bat pollination and the dispersal of fruit seeds, including for agave plants used in tequila production.

The relationship between bats and tequila may seem obscure at first, but the bat-plant association is so strong that the disappearance of one would threaten the survival of the other.

BATS Magazine

The lesser long-nosed bat is the first bat species to be removed from the endangered species list due to successful recovery. How the bat bounced back is not your typical conservation success story. Read More »

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Three threats to the monarch butterfly’s winter habitat and what we can do about it

Monarchs cluster on oyamel fir branches to stay warm. Tens of thousands of monarchs can cluster on a single tree.

Monarchs cluster on oyamel fir branches to stay warm. Tens of thousands of monarchs can cluster on a single tree. Photo credit: Pablo Leautaud (license)

Just as some people travel great distances to spend the holiday season with family and friends, monarch butterflies, too, make a long journey to spend the winter gathered together in the oyamel fir forests of Mexico.

The eastern population passes through Oklahoma and Texas on its annual migration south, stopping periodically to fuel up on nectar, ultimately reaching their destination in the mountains of central Mexico.

Unfortunately, the monarch’s winter home is under stress, which has contributed to a 90-percent decline in the species’ population over the last two decades. Read More »

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From Mexico City to San Francisco: A multi-national perspective on water management

Ana Lucia Garcia Briones (left) joined colleagues for a visit to the Kern Water Bank, which uses California’s groundwater space to store 1.5 million acre feet of water and retrieve it when account holders need it.

Ana Lucia Garcia Briones (left) joined colleagues for a visit to the Kern Water Bank in Bakersfield, California, which uses California’s groundwater space to store 1.5 million acre feet of water and retrieve it when account holders need it.

On World Water Day, I am reminded of what brought me to the Environmental Defense Fund: a passion for working on market-based incentive programs to improve groundwater management in California, ultimately benefiting multiple, diverse communities.

Born and raised in Mexico City, I moved to San Francisco to work on drought-related problems in California. It has been a surreal experience, allowing me to help disproportionately impacted communities, many of which are poor Latino communities in the rural Central Valley, where most of the nation’s fruits and vegetables are grown. In this way, I feel a little bit closer to home.

Water security for all

Many people may not realize it, but only about 5 percent of usable water in California is visible; the rest is underground. With access to surface water curtailed because of a five-year drought, many of the state’s biggest water users – farms and cities – have relied on groundwater pumping as a last resort. This has drawn down aquifers to dangerously low levels, and has left some rural communities without any water at all.  Read More »

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