Results 51 to 60 of about 1,485 (167)

One questionnaire—Two points in time: Has plant species knowledge of laypeople changed over a period of 20 years?

People and Nature, Volume 8, Issue 6, Page 1916-1928, June 2026.
Abstract Concern has been raised that in recent decades knowledge of plant species has severely declined in western countries. However, in the absence of regularly repeated and standardized surveys, no reliable statement can be made as to whether plant species knowledge has actually declined in recent decades.
Petra Lindemann‐Matthies, Theresa Gellesch, Diethart Matthies   +2 more
wiley   +1 more source

Introgression despite minimal hybridization: mating system modulates phenotypic associations with introgression in Clarkia

New Phytologist, Volume 250, Issue 4, Page 2619-2633, May 2026.
Summary Secondary contact between incipient species provides the opportunity to understand how trait divergence restricts gene flow. While mating system transitions are particularly common and involve a suite of phenotypic changes, the extent to which these changes influence gene flow during speciation is poorly understood.
Shelley A. Sianta, Brooke R. Kern, Amal Suri, Yaniv Brandvain, David A. Moeller   +4 more
wiley   +1 more source

Assessing the viability of genebanked seeds from rare, wild plants native to the United States using the D.E.A.D. paradigm

Applications in Plant Sciences, Volume 14, Issue 2, March-April 2026.
Abstract Premise Genebanks must maintain viable seeds for decades. Seeds that germinate are clearly alive, but some seeds, often from wild populations, do not germinate because they are dormant, empty, aged, or damaged (D.E.A.D.). This work evaluates the effects of D.E.A.D.
Christina Walters, Lisa M. Hill, Katherine D. Heineman, Hannah M. Tetreault, Shaimaa Ibrahim, Katherine Markstein, Cheryl Birker, Kris Freitag, Dustin Wolkis, Michael Kunz, Sheila Murray, Nathaniel Kingsley, Alexandra Seglias, Nicholas Matsumoto, Thomas N. Kaye, Cheryl Peterson, Matthew A. Albrecht, Noah Dell, Stacy Anderson, Steve Blackwell, David Remucal, Wendy Gibble, Anita Tiller, Emily Coffey, Jason Ligon, Laurie Blackmore, Carrie Radcliffe, Heather E. Schneider, Kristen Nelson, David Sollenberger, Jessamine Finch, Kate Wellspring, Robert Jetton, Joyce Maschinski   +33 more
wiley   +1 more source

Will Females Remain? Fuchsia Excorticata Gender Ratios and Pollen Deposition in Dunedin, New Zealand

New Zealand Journal of Botany, Volume 64, Issue 1, March 2026.
Fuchsia excorticata (J.R.Forst. et G.Forst.) L.f. (Kōtukutuku, Onagraceae) is a gynodioecious and bird pollinated tree, with females reliant on pollinators, while hermaphrodites can self‐pollinate. Females are important for population persistence as only they produce female offspring, and all their seed is the product of cross‐pollination so not ...
Anna Christensen, Janice Lord
wiley   +1 more source

CHROMOSOME TRANSLOCATIONS INGAYOPHYTUM(ONAGRACEAE) [PDF]

Evolution, 1969
Gayophytum, a small genus of nine species endemic to western North and South America, has a basic chromosome number of 7 (Lewis and Szweykowski, 1964). Three of the diploid species, G. eriospermum, G. keterozygum, and G. oligospermum are morphologically very similar and indistinguishable on the basis of habit or other vegetative characteristics.
openaire   +2 more sources

Seasonal variation in wild pig (Sus scrofa) diet revealed by DNA metabarcoding

Wildlife Society Bulletin, Volume 50, Issue 1, March 2026.
Using DNA metabarcoding of fecal samples, we investigated the diet of wild pigs at an extensive bottomland hardwood forest ecosystem within Felsenthal National Wildlife Refuge in Southern Arkansas. We found that wild pig diet was highly diverse and included at least 74 plant families and 106 genera and 23 species of vertebrates.
Kenneth C. Wilson, Scott J. Chiavacci, Caleb P. Roberts, Brett A. DeGregorio   +3 more
wiley   +1 more source

Changing Rainfall Drives Locally Asynchronous Reproduction of Tropical Birds via Modular Trophic Pathways

Global Change Biology, Volume 32, Issue 3, March 2026.
In low‐latitude mountains, we found insectivorous bird communities switched from breeding before to after the dry season at a threshold in dry‐season insects. Localized breeding season reversal of insectivores across wet‐to‐dry gradients magnified short‐term effects of drought and contrasted with the seasonal stability of nectar‐fruit consumers.
Felicity L. Newell, Ian J. Ausprey, Scott K. Robinson   +2 more
wiley   +1 more source

Dominant Species Drive Biomass and Diversity Responses to Nutrient Inputs

Ecology and Evolution, Volume 16, Issue 2, February 2026.
In a mesic grassland co‐limited by nitrogen and phosphorus, responses in plant community diversity and particularly of dominant species do not always correspond to responses in aboveground net primary productivity and functional group biomass production.
Philip A. Fay, Anita C. Risch, Michael J. Aspinwall, Robert W. Heckman, Albina R. Khasanova, Lara G. Reichmann   +5 more
wiley   +1 more source

The Systematics of Lopezieae (Onagraceae)

Annals of the Missouri Botanical Garden, 1973
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Plitmann, Uzi, Raven, Peter H, Breedlove, Dennis E. (Dennis Eugene)   +2 more
openaire   +2 more sources

A Revision of the African Species of Epilobium

Bothalia: African Biodiversity & Conservation, 1967
There are in Africa 10 native species of Epilobium, one of Circaea, and between 8 and 12 of Ludwigia (including  Jussiaea), depending upon how many species are considered native. These three genera include all native African species of Onagraceae.
Peter H Raven
doaj   +1 more source