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Method of Travel | High Sierra Backpacker

You are hereMonarch

Monarch


Alex Wierbinski's picture

BUTTERFLY NEWS sticky icon

Video embed: 
See video

Endless Butterflies Video

 

Identification
Art Shapiro High Sierra Butterfly Identification by Common Name

 

Trail Guide
High Sierra Butterfly Identification & Resources

 

Review
High Sierra Nevada All Living Things Forum

 

 

BUTTERFLY NEWS
 The whole web of life is being distorted by the  changing character of the seasons on and around the the vastness of the North Pacific Ocean.

 The Sierra Nevada Mountain Range is a significant element in the complex relationship of the North Pacific Ocean weather patterns with the North American continent.

 The relationship between North Pacific weather patterns and the High Sierra is vitally important for the vast overlapping webs of social and natural life depending on bountiful and predictable weather patterns.
These predictable and bountiful resources no longer exist on their own, in Nature, nor in the context of the vast populations to overwhelm Nature that we have spawned.

We have overwhelmed Nature and its resources fundamentally and on its face..

Alex Wierbinski's picture

Understanding the Complexity of Monarch Environmental Engagement

MONARCH RESEARCH

Female Monarch Butterfly: Orange
Monarch butterfly by Kenneth Dwain Harrelson, wiki.
Males have reddish hue, Wiki. Photo by Kenneth Dwain Harrelson, Wiki

Many, Many Monarchs
Many, many Monarchs, credit to MSU, by Karen Oberhauser.
MSU, by Karen Oberhauser, big show-shot.

 

Understanding the Complexity of Monarch Environmental Engagement

When it comes to Monarchs, Fall Migration Matters,
Michigan State University, March 18, 2019.

MAIN POINTS

Huge Declines
“Monarch butterflies in eastern North America have declined by 84% on Mexican wintering grounds since the observed peak in 1996.”

Alex Wierbinski's picture

Alternative Migration Strategies Part of Monarch Decline?

BUTTERFLIES

The Mighty Monarch Butterfly
Monarch butterfly, Wiki, by Kenneth Dwain Harrelson
Monarch butterfly, by Kenneth Dwain Harrelson

Alternative Migration Strategies Part of Monarch Decline?

Fewer monarch butterflies are reaching their overwintering destination,
De Gruyter, January 2, 2019.

MAIN POINTS

Dwindling Numbers of Monarchs
“...monarch butterfly, is currently experiencing dire problems with its migration in eastern North America.”

“Fewer and fewer monarchs are successfully reaching their overwintering destinations, and scientists aren’t sure why.”

Why?

Some midwestern monarchs are overwintering in Florida, rather than Mexico.

An Issue?
"...“alternative” overwintering locations..."

 

Bottom Line

Alex Wierbinski's picture

Florida Monarch Butterflies dropped 80 percent since 2005

BUTTERFLIES: MONARCHS CRASHING

Long Disaster tied to Human's Glyphosate & Climate Effects Disrupting Milkweed

Florida monarch butterfly populations have dropped 80 percent since 2005,
Florida Museum of Natural History, November 8. 2018.

MAIN POINTS

Radical Decline
"A 37-year survey of monarch populations in North Central Florida shows that caterpillars and butterflies have been declining since 1985 and have dropped by 80 percent since 2005."

"...decrease parallels monarchs' dwindling numbers in their overwintering grounds in Mexico."

Milkweed Connection
"This study shows the tight connection between monarchs and milkweed and highlights very dramatic losses in abundance in Florida that further confirm the monarch is declining."

Herbicide Glyphosate & Milkweed
"...shrinking native milkweed populations and a boost in glyphosate use in the Midwest are part of the problem."

Glyphosate
"...is lethal to milkweed, the monarchs' host plant."

Alex Wierbinski's picture

Western Monarch Butterfly Migration Measured: Long Fliers

 

BUTTERFLY NEWS

Segment of Western Monarch Migration Measured

Long Fliers: One Generation's Part?

Monarchs ride west coast winds: Proof of butterfly migration gathered,
Washington State University, June 25, 2018.

WHAT

"...five years and nearly 15,000 tagged butterflies..."

Alex Wierbinski's picture

Monarch Survival Strategies Dependent on Climate-Controlled Chemical Connection

 

Butterfly News
Monarch Survival Strategies

Dependent on Climate-Controlled Chemical Connection

It's an ecological trap,
Louisiana State University, April 3, 2018.

 

Deeply Intertwined Lives
"...a new relationship between climate change, monarch butterflies and milkweed plants."

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