News tagged with tree species
Related topics: species , climate change , trees
This beetle uses eggs as shields against wasps
(PhysOrg.com) -- New University of Arizona research has discovered that seed beetles from the desert Southwest shelter their broods from attacking parasitic wasps under a stack of dummy eggs.
Sep 14, 2011 |
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Rock-paper-scissors tournaments explain ecological diversity
According to classical ecology, when two species compete for the same resource, eventually the more successful species will win out while the other will go extinct. But that rule cannot explain systems such as the Amazon, ...
Mar 14, 2011 |
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Study finds surprising new branches on arthropod family tree
Any way you look at it -- by sheer weight, species diversity or population -- the hard-shelled, joint-legged creepy crawlies called arthropods dominate planet Earth. Because of their success and importance, scientists have ...
Feb 10, 2010 |
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Scientists find 56 new species in Papua New Guinea
Jumping spiders, a tiny chirping frog and an elegant striped gecko are among 56 species believed new to science discovered during a Conservation International (CI) Rapid Assessment Program (RAP) expedition ...
Mar 25, 2009 |
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Rapid burst of flowering plants set stage for other species
A new University of Florida study based on DNA analysis from living flowering plants shows that the ancestors of most modern trees diversified extremely rapidly 90 million years ago, ultimately leading to the formation of ...
Other Sciences / Archaeology & Fossils
Feb 09, 2009 |
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What are the Chances? Probability Solves an Evolutionary Puzzle
The origin of species may be almost as random as a throw of the dice. Iosif Pinelis, a professor of mathematical sciences at Michigan Technological University, has worked out a mathematical solution to a biological puzzle: ...
Jan 30, 2009 |
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Tree deaths have doubled across the western US
(PhysOrg.com) -- A new study led by the U.S. Geological Survey and involving the University of Colorado at Boulder indicates tree deaths in the West's old-growth forests have more than doubled in recent decades, ...
Jan 22, 2009 |
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Forest diversity from Canada to the sub-tropics influenced by family proximity
How species diversity is maintained is a fundamental question in biology. In a new study, a team of Indiana University biologists has shown for the first time that diversity is influenced on a spatial scale ...
May 17, 2012 |
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Competition is at the root of diversity in rainforests: study
Another attractive theory falls foul of the facts. A census of trees in rainforests on three continents has confirmed that competition plays a central role in structuring communities. This contradicts the so-called neutral ...
Jan 26, 2012 |
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Frogs use calls to find mates with matching chromosomes
When it comes to love songs, female tree frogs are pretty picky. According to a new study from the University of Missouri, certain female tree frogs may be remarkably attuned to the songs of mates who share the same number ...
Dec 27, 2011 |
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Scientists use fossil feathers reveal lineage of extinct, flightless ibis
A remarkable first occurred recently at the Smithsonian's National Museum of Natural History when ornithologists Carla Dove and Storrs Olson used 700- to 1,100-year-old feathers from a long extinct species ...
Other Sciences / Archaeology & Fossils
Nov 22, 2011 |
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Forests not keeping pace with climate change: study
More than half of eastern U.S. tree species examined in a massive new Duke University-led study aren't adapting to climate change as quickly or consistently as predicted.
Oct 31, 2011 |
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A living species of aquatic beetle found in 20-million-year-old sediments
The fossil beetle discovered in the 16-23 million years old sediments of the Irtysh River in southern Siberia belongs to the modern species Helophorus sibiricus, a member of the water scavenger beetles (Hydro ...
Other Sciences / Archaeology & Fossils
Oct 06, 2011 |
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Forest structure, services and biodiversity may be lost even as form remains
A forest may look like a forest, have many of the same trees that used to live there, but still lose the ecological, economic or cultural values that once made it what it was, researchers suggest this week in articles in ...
Oct 03, 2011 |
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Symbiotic species reconnect across distances, study finds
(PhysOrg.com) -- Species that are mutually dependent on each other can, in some cases, become separated and reconnect again over distances of thousands of miles, a new study from UC Berkeley has found.
Sep 08, 2011 |
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