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Update of a local tree field guide offers ‘antidote for plant blindness’（图）
Ecology Morris Arboretum & Gardens Earth and Environmental Science
2023/6/29
Asked to name his favorite tree, Paul W. Meyer, the former director of Penn’s Morris Arboretum, likens the task to “asking a parent to name their favorite child.”
Sometimes getting to where you want to go is a matter of finding the right guide.
Over time, cancer cells can evolve to become resistant to treatment, more aggressive, and metastatic — capable of spreading to additional sites in the body and forming new tumors. The more of these tr...
Tree rings and Iceland's Laki volcano eruption:A closer look at climate（图）
Tree rings Iceland Laki volcano eruption A closer look climate
2021/2/5
By reading between the lines of tree rings, U.S. National Science Foundation-funded researchers at the University of Arizona reconstructed what happened in Alaska the year the Laki Volc...
Tree cover increased in Southeast Michigan over the past 30 years（图）
Tree cover increased Southeast Michigan over past 30 years
2020/8/14
The extent of both tree canopy and urban sprawl increased in Southeast Michigan between 1985 and 2015, according to a new University of Michigan study that used aerial photos and satellite i...
Bedrock type under forests greatly affects tree growth, species, carbon storage（图）
Bedrock type under forests greatly tree growth species carbon storage
2020/6/19
A forest's ability to store carbon depends on the bedrock beneath, according to Penn State researchers who studied forest productivity and composition and the physical characteristics of roc...
Not falling far from the tree: Ecologists study seed-to-seedling transition（图）
tree Ecologists study seed-to-seedling transition
2020/3/6
Why are there so many species of plants? Why do some plants thrive, while others don't?Ecologist Noelle Beckman of Utah State University and her colleagues explore these questions in new fin...
Hot climates to see more variability in tree leafing as temperatures rise（图）
Hot climates variability tree leafing temperatures rise
2020/2/20
Scientists have found that while all regions of the country can expect an earlier start to the growing season as temperatures rise, the trend is likely to become more variable year-over-year in hotter...
Sloths, which once roamed the Americas, ranged from tiny, cat-sized animals that lived in trees to massive ground sloths that may have weighed up to six tons. The only species we know today are two-to...
Hands-on model helps forest stakeholders fight tree disease（图）
Hands-on model forest stakeholders fight tree disease
2019/10/30
When a new, more aggressive strain of the pathogen that causes sudden oak death turned up in Oregon, scientists and stakeholders banded together to try to protect susceptible trees and the region's va...
When a Tree Falls in St. Louis, Will the Power Go Out?（图）
Tree Falls St. Louis Power Go Out
2019/10/30
In a study recently published in Sensors, Saint Louis University researchers paired satellite imaging data with machine learning techniques to map local tree species and help manage the health of urba...
Crabs, lobsters and shrimp now have a family tree dating 500 million years（图）
Crabs lobsters shrimp family tree dating 500 million years
2019/10/30
Researchers have for the first time traced the roots of crabs, lobsters and shrimp to create the family tree of crustaceans people love to eat.The tree shows the 450-million-year evolution of these 10...
Study:Viruses Share Genes With Organisms Across The Tree Of Life（图）
Viruses Share Genes Organisms Across Tree Of Life
2017/12/19
A new study finds that viruses share some genes exclusively with cells that are not their hosts. The study, reported in the journal Frontiers in Microbiology, adds to the evidence that viruses swap ge...
With all the discussion about global climate change effects, new research shows that another kind of climate is an important factor in regional pinyon pine tree recovery after drought events – the mic...
Shaking up the fish family tree:'Living fossil' not as old as we thought（图）
shaking up the fish family tree living fossil as old as we thought
2017/9/19
Polypterids are weird and puzzling African fish that have perplexed biologists since they were discovered during Napoleon's expedition to Egypt in the late 1700s.Often called living fossils, these eel...