Seed Germination Ecology in Neotropical Melastomataceae: Past, Present, and Future – ScienceOpen
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      Systematics, Evolution, and Ecology of Melastomataceae 

      Seed Germination Ecology in Neotropical Melastomataceae: Past, Present, and Future

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          Plant Ecological Strategies: Some Leading Dimensions of Variation Between Species

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            An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm

            Abstract We assess progress toward the protection of 50% of the terrestrial biosphere to address the species-extinction crisis and conserve a global ecological heritage for future generations. Using a map of Earth's 846 terrestrial ecoregions, we show that 98 ecoregions (12%) exceed Half Protected; 313 ecoregions (37%) fall short of Half Protected but have sufficient unaltered habitat remaining to reach the target; and 207 ecoregions (24%) are in peril, where an average of only 4% of natural habitat remains. We propose a Global Deal for Nature—a companion to the Paris Climate Deal—to promote increased habitat protection and restoration, national- and ecoregion-scale conservation strategies, and the empowerment of indigenous peoples to protect their sovereign lands. The goal of such an accord would be to protect half the terrestrial realm by 2050 to halt the extinction crisis while sustaining human livelihoods.
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              Why intraspecific trait variation matters in community ecology.

              Natural populations consist of phenotypically diverse individuals that exhibit variation in their demographic parameters and intra- and inter-specific interactions. Recent experimental work indicates that such variation can have significant ecological effects. However, ecological models typically disregard this variation and focus instead on trait means and total population density. Under what situations is this simplification appropriate? Why might intraspecific variation alter ecological dynamics? In this review we synthesize recent theory and identify six general mechanisms by which trait variation changes the outcome of ecological interactions. These mechanisms include several direct effects of trait variation per se and indirect effects arising from the role of genetic variation in trait evolution.
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                2022
                July 21 2022
                : 707-733
                10.1007/978-3-030-99742-7_32
                1cd30324-b941-41e9-b0b4-8d2bf3cdfea3
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