Climate is Changing Faster than Animal Adaptation


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 20 August 2019

 

ECO-CRASHING ANTHROPOCENE

Song Sparrow
Song Sparrow, Jennifer Taggart, courtesy Cornell Lab of Ornithology.
Song Sparrow is one of the species considered in an international review of climate change studies, Jennifer Taggart, courtesy Cornell Lab of Ornithology.

 

Birds

Climate is Changing Faster than Animal Adaptation,
Cornell University, August 20, 2019.

MAIN POINTS

"Birds and other animals cannot adapt fast enough to keep pace with climate change, throwing species survival in doubt."

"Our research focused on birds because complete data on other groups were scarce."

"...reviewed more than 10,000 published climate change studies..."

Phrenological Shift
"We demonstrate that in temperate regions, the rising temperatures are associated with a shift in the timing of biological events to earlier dates."

Changes
"These biological events include hibernation, reproduction, and migration. Changes in body size, body mass, or other physical traits have also been associated with climate change but--as confirmed by this study--show no systematic pattern."

"The rate of climate change has increased so much over the last 20 years that in general birds and other animals cannot respond fast enough, leading to a mismatch between the timing of nesting and when food needed to feed the babies is peaking."

"The data analyzed included common and abundant species which are known to cope with climate change relatively well. Even they cannot keep pace."

 

Phenology
"The Timing of Life"

"Phenology is a key component of life on earth. Many birds time their nesting so that eggs hatch when insects are available to feed nestlings. Likewise, insect emergence is often synchronized with leaf out in host plants. For people, earlier flowering means earlier allergies. Farmers and gardeners need to know the schedule of plant and insect development to decide when to apply fertilizers and pesticides and when to plant to avoid frosts. Phenology influences the abundance and distribution of organisms, ecosystem services, food webs, and global cycles of water and carbon. In turn, phenology may be altered by changes in temperature and precipitation.

Changes in phenological events like flowering and animal migration are among the most sensitive biological responses to climate change. Across the world, many spring events are occurring earlier—and fall events are happening later—than they did in the past. However, not all species are changing at the same rate or direction, leading to mismatches. How plants and animals respond can help us predict whether their populations will grow or shrink – making phenology a “leading indicator” of climate change impacts."

National Phenology Network

 

 

Our Radically Changing Phenology
"The Timing of Life"

Aug 2019

Bee-Flower Mismatches Rising with Temperatures

 

July 12, 2019
Changing Timing of Life Bleeding Fertility Out of Nature, The Case of the Japanese Bumblebees

April 2019
ECO-CRASHING NEWS: Comprehensive Arctic Warming Underway

 

March 2019
CHANGING ARCTIC SEASONS: Harbigner of Deadly Changes

 

May 2019
Eco-Crashing News, 2019 Arctic Warming Specifics, Timing Spring

 

Updated
Jan 2019
BIRDS & INSECTS, A Shared Decline

 

June 2018
Climate Change News: Nature Losing its Integrated Timing; Life no longer supporting itself

 

May 2018
Timing of Life Changing with Changing Seasons: Birds Paying the Price

 

April 2018
The Timing and Character of Seasons have Changed: Nature-Ecosystems-Watersheds Crash

 

Nov 2017
Changes in flowering, fruiting affecting bird abundance, activities

 

 

 

Bird News

ECO-CRASH NEWS

News of Man & Nature, August 2019

 

 

 

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