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During the last centuries, humans have transformed global ecosystems. With their temporal
dimension,herbaria provide the otherwise scarce long-termdata crucial for trackingecological and
Authored by more than 200 scientists from the United States, Canada, and Mexico, the Second
State of the Carbon Cycle Report (SOCCR2) provides an up-to-date assessment of scientific
The impacts of climate change are already being felt in communities across the country.
More frequent and intense extreme weather and climate-related events, as well as changes
In a pollen supplementation experiment, fruit or seed production by flowers exposed to natural pollination is compared to that following hand pollination either by pollen supplementation (i.e.
The first two decades of the twenty-first century have seen a rapid rise in the mobilization of digital biodiversity data.
Functional traits are increasingly used to understand the ecology of plants and to predict their responses to global changes. Unfortunately, trait data are unavailable for the majority of plant species.
Ulmus americana (American elm) was an important urban tree in North America prior to the introduction of the Dutch elm disease pathogen in 1930. Subsequently, urban and community forests were devastated by the loss of large canopies.
Access and benefit-sharing (ABS) refers to the way in which genetic resources
may be accessed, and how the benefits that result from their use are shared
between the people or countries using the resources (users) and the people or
Plant breeders require genetic diversity to develop cultivars that are productive, nutritious,
“Soil pollution” refers to the presence in the soil of a chemical or substance out
of place and/or present at a higher than normal concentration that has adverse