Results 261 to 270 of about 1,109,640 (363)

Heat drastically alters floral color and pigment composition without affecting flower conspicuousness

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Floral pigments primarily serve to attract pollinators through color display and also contribute to protection against environmental stress. Although pigment composition can be plastically altered under stress, its impact on pollinator color perception remains poorly understood.
Eduardo Narbona   +6 more
wiley   +1 more source

Identifying the drivers of microbial community changes and interactions in polluted coastal sediments. [PDF]

open access: yesEnviron Microbiome
Ramljak A   +7 more
europepmc   +1 more source

Reconstructing the evolutionary history of herbaceous crops through trait‐based ecology

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Reconstructing the evolution of crop plants is fundamental to understanding their origins, ecological adaptations, and impacts on ecosystem processes. However, our understanding of crop evolution stems largely from archaeology and genetics, with less focus on a trait‐based ecological approach.
Alicia Gómez‐Fernández
wiley   +1 more source

Toward a functional understanding of novel fire regimes in tropical forests

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Climate change and land‐use alterations are driving forest fires to unprecedented frequencies and intensities worldwide. Even wet tropical forests—historically rarely subjected to fire—are increasingly experiencing fire disturbances. The impact of wildfires on these forests is likely large, since many of their tree species are not adapted to ...
David Pacuk   +3 more
wiley   +1 more source

Causes of delayed angiosperm diversification: The photosynthetic revolution, increased opportunity costs of anti‐herbivore defenses, selection for qualitative toxins, and acceleration of plant–herbivore coevolution

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Why did it take so long for angiosperms to diversify after they arose? Here I consider the indirect but potentially crucial impact of the “photosynthetic revolution” on plant–herbivore coevolution. Increased vein density in fossil leaves implies a doubling in photosynthesis 125–100 million years ago.
Thomas J. Givnish
wiley   +1 more source

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