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Daniel Zuleta: Do small-scale changes in topography affect functional trait variability in an aseasonal Amazon forest? In our newest post Daniel Zuleta—a postdoc researcher at Smithsonian ForestGEO—presents his last work ‘Interspecific and intraspecific variation of tree branch, leaf, and stomatal traits in relation to topography in an aseasonal Amazon forest’. He presents the huge Amacayacu Forest Dynamics Plot, findings about the major impact that tree size exerts on tree functional traits, and how he changed his interests from forest plantations industry …
https://functionalecologists.c....om/2022/12/08/daniel

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Discovery of world's oldest DNA breaks record by one million years Two-million-year-old DNA has been identified -- opening a 'game-changing' new chapter in the history of evolution. Microscopic fragments of environmental DNA were found in Ice Age sediment in northern Greenland. Using cutting-edge technology, researchers discovered the fragments are one million years older than the previous record for DNA sampled from a Siberian mammoth bone. The ancient DNA has been used to map a two-million-year-old ecosystem which weathered extreme climate change.
https://www.sciencedaily.com/r....eleases/2022/12/2212


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3 days ago - Translate

Luca Carisio: How much nectar is produced when the effect of flower-visiting insects is considered? About the paper Our paper describes how to estimate the nutritional contribution of plants to pollinators and to other flower-visiting insects. The nutritional contribution of plants to pollinators is usually estimated by measuring—using a mesh bag—the nectar volume produced by flowers isolated for a 24 h period from flower-visiting insects. Many studies adopted this 24 h measure as a proxy of plant nectar production. When …
https://functionalecologists.c....om/2022/12/06/luca-c

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Climate change in the forests of northern Germany More and more trees are suffering the consequences of decades of human-made climate change. The growth of the European beech has so far suffered decline mainly in southern Europe. European beech is Germany's most important native forest tree species and it is most commonly found in Central Europe. A research team has now been able to show that the European beech is suffering from increasing drought stress in summer in northern Germany as well. This climate stress is particularly pronounced at warmer sites, when there is a higher density of these trees together, and on very sandy soils.
https://www.sciencedaily.com/r....eleases/2022/12/2212


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Bee study: Both habitat quality and biodiversity can impact bee health Efforts to promote the future health of both wild bees and managed honeybee colonies need to consider specific habitat needs, such as the density of wildflowers. At the same time, improving other habitat measures -- such as the amount of natural habitat surrounding croplands -- may increase bee diversity while having mixed effects on overall bee health. Those are the key findings from a new analysis of several thousand Michigan bees from 60 species. The study looked at how the quality and quantity of bee habitat surrounding small farm fields affects the levels of common viral pathogens in bee communities.
https://www.sciencedaily.com/r....eleases/2022/12/2212


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