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"tundra"
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Let's visit the tundra
\"Trek to the tundra in this title, which examines a tundra biome's important features, plants, and animals and how they all come together to support life.\"-- Provided by publisher.
Book
Plant functional trait change across a warming tundra biome
The tundra is warming more rapidly than any other biome on Earth, and the potential ramifications are far-reaching because of global feedback effects between vegetation and climate. A better understanding of how environmental factors shape plant structure and function is crucial for predicting the consequences of environmental change for ecosystem functioning. Here we explore the biome-wide relationships between temperature, moisture and seven key plant functional traits both across space and over three decades of warming at 117 tundra locations. Spatial temperature–trait relationships were generally strong but soil moisture had a marked influence on the strength and direction of these relationships, highlighting the potentially important influence of changes in water availability on future trait shifts in tundra plant communities. Community height increased with warming across all sites over the past three decades, but other traits lagged far behind predicted rates of change. Our findings highlight the challenge of using space-for-time substitution to predict the functional consequences of future warming and suggest that functions that are tied closely to plant height will experience the most rapid change. They also reveal the strength with which environmental factors shape biotic communities at the coldest extremes of the planet and will help to improve projections of functional changes in tundra ecosystems with climate warming.
Journal Article
Polar worlds
Describes the Earth's polar environments, the plants and animals that live there, how humans survive there, and how it is becoming an endangered ecosystem.
Book
Global plant trait relationships extend to the climatic extremes of the tundra biome
The majority of variation in six traits critical to the growth, survival and reproduction of plant species is thought to be organised along just two dimensions, corresponding to strategies of plant size and resource acquisition. However, it is unknown whether global plant trait relationships extend to climatic extremes, and if these interspecific relationships are confounded by trait variation within species. We test whether trait relationships extend to the cold extremes of life on Earth using the largest database of tundra plant traits yet compiled. We show that tundra plants demonstrate remarkably similar resource economic traits, but not size traits, compared to global distributions, and exhibit the same two dimensions of trait variation. Three quarters of trait variation occurs among species, mirroring global estimates of interspecific trait variation. Plant trait relationships are thus generalizable to the edge of global trait-space, informing prediction of plant community change in a warming world.
It is unclear whether plant trait relationships found at the global scale extend to climatic extremes. Here the authors analyse six major aboveground traits to show that known plant trait relationships extend to the tundra biomes and exhibit the same two dimensions of variation detected at the global scale.
Journal Article
What is the tundra?
\"Readers will learn what can live in these harsh environments and why such an unwelcoming place is essential to all life on Earth\"-- Provided by publisher.
Book
Caribou
Examines caribou by looking at their physical characteristics, life cycle, and the environment that they live in.
Book
Tundras inside out
\"A seemingly barren, harsh, and cold wilderness, the often icy tundra appears to support little life. However, peel back the corners of this fascinating biome and you will be amazed by the living organisms that thrive within one of Earths toughest environments. Discover the living things that function within the tundra, from polar bears and caribou to seabirds and foxes. Explore tundras all over the world and find out what you can do to help protect the riches of these mysterious places.\"--Amazon.com.
Book