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- Heydel, Felix; Engels, Jana Gesina; Feigs, Jannis Till; Vásquez, Evelyn; Rudolph, Barbara; Rohwer, Jens Gunter; Jensen, Kai
- Perspectives in plant ecology, evolution and systematics 2017 v.27 pp. 57-67
- Poaceae; abiotic stress; amplified fragment length polymorphism; biomass production; estuaries; evolution; flooded conditions; freshwater; gene flow; genetic variation; habitats; indigenous species; landscapes; leaves; marshes; perennials; Germany
- ... Divergent selection on ecological traits is thought to be the main driver of ecological speciation, leading directly or indirectly to the evolution of reproductive barriers between populations in different environments without geographic isolation. Low competition in stressful habitats as well as habitat heterogeneity occurring between biotic regimes are factors, which actively promote speciation ...
- Milet-Pinheiro, Paulo; Gerlach, Günter
- Perspectives in plant ecology, evolution and systematics 2017 v.27 pp. 23-34
- Catasetum; Neotropics; bees; chemistry; ecology; evolution; flowers; males; odors; perfumes; pollination; pollinators; sexual dimorphism
- ... The Neotropical genus Catasetum is one of the most notable orchids because of its unusual reproductive strategy. In contrast to most orchids, all of the ca. 170 Catasetum species have sexually dimorphic, unisexual flowers involved in a highly specialized pollination mechanism. Flowers of Catasetum produce strong floral perfumes that act as both attractant and reward for male euglossine bees. While ...