top
From the Open-Publishing Calendar
From the Open-Publishing Newswire
Indybay Feature
Wed Feb 15 2017 (Updated 02/16/17)
Monarch Butterfly Population Drops by Nearly One-third
Wed Feb 15 2017 (Updated 02/16/17)
Number of Monarchs Overwintering in California Remains Low
The annual overwintering count of monarch butterflies released on February 9 confirms Monarch numbers fell by nearly one-third from last year’s count, indicating an ongoing risk of extinction for America’s most well-known butterfly. Scientists report that this year’s population is down by 27 percent from last year’s count, and down by more than 80 percent from the mid-1990s. Additionally, a survey of monarch butterflies overwintering in California shows that the Western population has not rebounded.

A recent study by the U.S. Geological Survey concluded that there is a substantial probability that monarch butterflies east of the Rockies could decline to such low levels that they face extinction. Researchers estimate the probability that the monarch migration could collapse within the next 20 years is between 11 percent and 57 percent. This year’s drastic decline is attributed in part to more extreme winter storms that killed millions of monarchs last March in Mexico’s mountain forests, where 99 percent of the world’s monarchs migrate for the winter.

On the West Coast of California, volunteers with the Xerces Society’s Western Monarch Thanksgiving Count visited 253 sites and tallied a total of 298,464 monarchs—a fraction of the 1.2 million monarchs recorded in the late 1990s. Key sites such as Pismo Beach and Natural Bridges saw lower populations this year, and all but one of the 15 sites which have been continuously monitored since 1997 had lower counts than in the prior year. Monarchs from as far away as Idaho, Utah and Arizona converge to spend the winter in tree groves along the Pacific coast from Mendocino County, California, to northern Baja, Mexico. This gathering of monarchs provides a unique opportunity to gauge the health of the monarch population from the western United States.

Read More: Monarch Butterfly Population Drops by Nearly One-third | Number of Monarchs Overwintering in California Remains Low

Related Features: California Monarch Butterflies Sites in Need of Protection | Lawsuit Launched for Endangered Species Act Protection of Monarch Butterflies
02/17/17 Santa Cruz DA Won't File Charges Against Police Officer Who Killed Man Holding Garden Rake Police State and Prisons | Health, Housing, and Public Services | Santa Cruz Indymedia02/16/17 Nationwide Ramp-Up of Highly Militarized ICE Raids Includes California's Central Coast Front Page | Police State and Prisons | California | U.S. | Immigrant Rights | Santa Cruz Indymedia02/15/17 Number of Monarchs Overwintering in California Remains Low Front Page | Environment & Forest Defense | California | U.S. | International | Americas | Santa Cruz Indymedia02/15/17 Civil Rights Groups Condemn New York City's Fordham University Ban on SJP Front Page | Education & Student Activism | U.S. | Palestine02/14/17 Safe Drinking Water Exemptions Allow Oil Companies to Dump Waste Fluid Into Aquifers Front Page | Environment & Forest Defense | Central Valley | East Bay | California | Government & Elections | Santa Cruz Indymedia02/13/17 Eight Banks Funding the Dakota Access Pipeline Protested Front Page | Environment & Forest Defense | Racial Justice | Peninsula | U.S.02/13/17 Dam Maintenance Neglected as Governor Brown Promotes Delta Tunnels Front Page | Environment & Forest Defense | Central Valley | California | Government & Elections02/09/17 International Women's General Strike on March 8: Walk Out, March and Demonstrate Front Page | Health, Housing, and Public Services | Labor & Workers | Global Justice and Anti-Capitalism | LGBTI / Queer | Womyn | U.S. | International02/09/17 Public Bank of Oakland Aims to Serve the People, Use Bank’s Profits for Common Good Front Page | Health, Housing, and Public Services | Global Justice and Anti-Capitalism | East Bay | Government & Elections02/08/17 Mayor and City Administrator Bulldoze Homes & Village of Services for Oakland’s Homeless Residents Front Page | Police State and Prisons | Racial Justice | East Bay | Government & Elections02/07/17 Settlement Reached for Berkeley Police Brutality at 2014 Black Lives Matter Protest Front Page | Police State and Prisons | Racial Justice | East Bay | Government & Elections
Related Categories: Americas | California | International | Santa Cruz Indymedia | U.S. | Environment & Forest Defense | Front Page
Monarch Butterfly Population Drops by Nearly One-third Center for Biological Diversity Friday Feb 10th 3:26 PM
México : Gasolinazo, cólera proletaria y reformismo en punto muerto. partido comunista internacional Thursday Feb 2nd 5:31 PM
"We have a dream, may Hueyapan becomes autonomous municipality" Demián Revart Wednesday Feb 1st 1:26 AM
Oversight Board Meets as Puerto Rico Crisis Deepens Greg Williams Friday Jan 27th 2:01 PM
Indigenous Armed Group Created in the Mountains of Guerrero Ruptura Colectiva Thursday Dec 15th 5:35 PM
Evicted Okupa Chanti Ollin Calls for Solidarity El Enemigo Común (1 comment) Wednesday Dec 14th 1:47 PM
More News...