Results 131 to 140 of about 48,862 (265)
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
In situ ambient vibration modal analysis of saguaro cacti (Carnegiea gigantea)
Abstract Premise The structural and dynamic properties of columnar cacti are key inputs for stability analyses; however, no previous studies have been able to resolve these properties from full‐scale tests in situ. Methods I present an approach using non‐destructive ambient vibration data to measure the resonance properties (modal frequencies and mode ...
Jeffrey R. Moore
wiley +1 more source
Historical ecology reveals the "surprising" direction and extent of shifting baselines for the Florida manatee (Trichechus manatus latirostis). [PDF]
Pluckhahn TJ, Thulman DK.
europepmc +1 more source
Historical ecology: a critique of François Péron’s account of Southern Elephant Seals, Mirounga leonina (Linn.), [PDF]
JK Ling
openalex +1 more source
Abstract Premise Pollination by beetles is relatively rare in orchids, and this has been attributed to the clumsy behavior of beetles being unsuitable for the precise pollen transfer mechanisms that characterize the orchid family. We investigated floral specialization for beetle pollination in the rare fire‐dependent South African orchid Disa elegans ...
Steven D. Johnson +3 more
wiley +1 more source
Towards biocultural realism: Connecting conservation with historical ecology and common sense. A European perspective. [PDF]
Bobiec A +4 more
europepmc +1 more source
Abstract Premise Fire is a key ecological process that shapes ecosystems globally, yet fire adaptation strategies remain unclear for many species, especially for ground lichens that are reliant on pyrogenic landscapes but are evidently fire‐intolerant.
Sterling A. Herron +6 more
wiley +1 more source
Enhancing biodiversity: historical ecology and biogeography of the Santa Catalina Island ground squirrel, Otospermophilus beecheyi nesioticus. [PDF]
Rick TC +12 more
europepmc +1 more source

