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Status of Global Migrations 2018: Everything Unwinding | High Sierra Backpacker

Status of Global Migrations 2018: Everything Unwinding

Alex Wierbinski's picture

By Alex Wierbinski - Posted on 29 March 2018


Eco Crash News
Status of Global Migrations

Everything Unwinding

Animal migrations,
University of California - Santa Barbara, March 26, 2018.

"...set out to estimate the vulnerability and extinction risk of migratory birds, mammals and fishes from different regions and ecosystems around the world."

“...we found that the vulnerability of migratory animals varied depending on the regional, environmental, behavioral and taxonomic context of the species.”

"...examined more than 6,000 migratory species by taxonomic group (birds, mammals and fishes) and by environmental system (terrestrial, marine or freshwater)..."


"... while migratory birds are relatively abundant, their numbers are decreasing disproportionately to nonmigratory birds."


"...migratory mammals, whose population size is increasing compared to their nonmigratory counterparts. Nonetheless, IUCN lists them as “more endangered.”

“The relative increase of migratory mammals compared to nonmigratory mammals underscores the success of previous conservation efforts,” Hardesty-Moore said. “Still, migratory mammals have an overall high extinction risk because they face so many barriers — roads and development, hunting and poaching — so more work still needs to be done.” "

"...found that migratory freshwater fishes are at greater risk than their marine brethren, which makes sense considering that the avenues of travel available to freshwater species are much more restricted. Dams are a major problem for some of these migrators."


Climate Change News: Nature Losing its Integrated Timing; Life no longer supporting itself


Eco-Crash News: Everything is Changing, Timing of migration is changing for songbirds on the Pacific coast



Climate Change Bad for the Everything, then the Birds
Changes in flowering, fruiting affecting bird abundance, activities


BIRD POPULATIONS CRASHING: Migrating Birds Are Running Out of Water


Warming Affecting Birds in California; Birds Around the World are Freaking Out


Changing Seasons, Changing Sierra

Climate Change News: The Western US Climate Already Changed, Measuring the Effects

Climate News Report: Jerry's Worthless Junket to Jermany while California Burns

Changing Timing of Everything, & the Birds


The Forces of Change are just picking up speed

2017 Hottest in Ca History, still increasing


Climate Crash News: Hanging on Under Diminishing Habitat Shadows. Are Populations Stable?









March 2018 News of Man & Nature




News from Nature


Climate Destruction News



Bee News

Bear News

Spider Forum

Bird News

Small Mammals

Frogs and Reptiles

Butterfly News


Health and Fitness

Mountain Safety

Mosquito News

Female Trail

High Sierra History


Astro-Phys, Space, & Science News

High Sierra Geology News

Fish, Oceans, & Water News



All High Sierra News





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