Results 21 to 30 of about 1,547 (136)

Good to the Last Drop? Nectar Depletion by Insect Pollinators Varies Among Plant Species and Through Time

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
Understanding how pollinators compete for available floral resources (nectar, pollen, etc.) across time is poorly studied, especially in the western hemisphere. To address this knowledge gap, we measured nectar availability and subsequent depletion as a proxy for resource competition intensity among pollinators in an early successional old field ...
Skylar H. Gillies   +3 more
wiley   +1 more source

Trapped honey bees reduce floral visitation on milkweed flowers

open access: yesEcology, Volume 107, Issue 7, July 2026.
Abstract Trapped arthropods have been shown to benefit plants in several ways, but few studies have examined the potential costs of arthropod entanglement. Milkweeds (Asclepias spp.) have an unusual pollination system that requires relatively large packets of pollen (pollinia) to become attached to the appendages of insect pollinators and be pulled ...
Ian D. Jett, Louie H. Yang
wiley   +1 more source

To provide pollinator nesting habitat, cut dead perennial stems in their first winter

open access: yesInsect Conservation and Diversity, Volume 19, Issue 4, Page 933-944, July 2026.
Garden management practises need to consider stem‐nesting bees and wasps to avoid destroying active nests and important nesting materials. Volunteers collected samples of dead stems (in situ where they grew) in winter, spring, summer and fall as part of a participatory research project.
Hannah K. Levenson   +3 more
wiley   +1 more source

Cattle foraging on milkweed: Intra‐seasonal herbivory shifts and implications for monarch butterfly conservation

open access: yesEcosphere, Volume 17, Issue 6, June 2026.
Abstract Managing milkweed (Asclepias spp.) is of high conservation concern due to its association with monarch butterflies (Danaus plexippus L.), which are proposed for listing under the Endangered Species Act. To counteract monarch declines, conservation goals aim to establish ≥1.6 billion nonagricultural milkweed stems within the Midwestern United ...
Ellysa R. Johnson   +5 more
wiley   +1 more source

Wilting wildflowers and bummed‐out bees: Climate change threatens US state symbols

open access: yesPeople and Nature, Volume 8, Issue 6, Page 1832-1851, June 2026.
Abstract Species designated as state symbols in the United States carry cultural importance, embody historical heritage and maintain long‐standing linkages to Indigenous traditions. However, they are threatened by climate change and even face the risk of local or global extinction.
Xuezhen Ge   +3 more
wiley   +1 more source

Henry Trimen: Under‐appreciated pioneer in the typification of Linnaean plant names?

open access: yesTAXON, Volume 75, Issue 3, June 2026.
Abstract In 1887, Henry Trimen published a paper summarising the contents of the Hermann Herbarium, in what is now the Natural History Museum, London (BM), in terms of the plant names published by Linnaeus. Trimen referred to the Hermann specimens as types of Linnaeus's names.
I.M. Turner
wiley   +1 more source

Foliar Contributions to Methane and Nitrous Oxide Exchange in Urban Green Roof Systems

open access: yesGCB Bioenergy, Volume 18, Issue 6, June 2026.
Biochar amendment of extensive green roof substrates enhanced foliar methane (CH4) uptake (~3×) and reduced nitrous oxide (N2O) emissions across native and stonecrop vegetation. City‐scale extrapolation to Toronto's permitted green roof area indicates measurable, management‐sensitive non‐CO2 mitigation within urban green infrastructure systems ...
Md Rezaul Karim, Sean C. Thomas
wiley   +1 more source

Biological and environmental drivers of early life fawn survival in a declining pronghorn population

open access: yesWildlife Biology, Volume 2026, Issue 3, May 2026.
Pronghorn Antilocapra americana occupy only a portion of their historical range and in Oklahoma occur at the eastern edge of the species' contemporary distribution. Monitoring has suggested pronghorn populations in Oklahoma have declined in recent years.
Derek P. Hahn   +10 more
wiley   +1 more source

Integrative taxonomy supports DNA barcoding in revealing an abundant cryptic species in the United States Coastal Plain

open access: yesJournal of Systematics and Evolution, Volume 64, Issue 3, Page 520-535, May 2026.
A densely sampled phylogeny of Carex section Lupulinae (107 specimens) is presented, along with a new cryptic species from the southern United States. This species is locally abundant and genetically and morphologically distinct from other Lupulinae. An identification key is provided and phenological and ecological patterns are discussed.
Étienne Lacroix‐Carignan   +4 more
wiley   +1 more source

Asclepias syriaca L.

open access: yes, 2018
Published as part of Konrad Lauber, Gerhart Wagner & Andreas Gygax, 2018, Flora Helvetica - Apocynaceae, pp.
Konrad Lauber   +2 more
openaire   +2 more sources

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