Results 71 to 80 of about 23,240 (266)

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

American Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording, Erik W. Ertsgaard, David E. Giblin, Iris H. Dimpsey, Owen B. Bard   +4 more
wiley   +1 more source

Establishing native wildflower habitats in urban settings on a low budget

Folia Horticulturae
This study aimed to compare the costs of two methods in establishing a native wildflower habitat using transplants while controlling weeds. The first method involved no-tillage and glyphosate herbicide and the second method used dazomet herbicide with ...
Shelton J. S., Florkowski W. J., Pennisi S. V.   +2 more
doaj   +1 more source

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

American Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard, Elissa Harb, Stacy D. Holt Jr., Courtney M. Patterson, Nicholas J. Kooyers   +4 more
wiley   +1 more source

Pollinator conservation—the difference between managing for pollination services and preserving pollinator diversity

Current Opinion in Insect Science, 2015
Our review looks at pollinator conservation and highlights the differences in approach between managing for pollination services and preserving pollinator diversity. We argue that ecosystem service management does not equal biodiversity conservation, and that maintaining species diversity is crucial in providing ecosystem resilience in the face of ...
Senapathi, Deepa, Biesmeijer, J.C., Breeze, T., Kleijn, D., Potts, S.G., Carvalheiro, L.G.   +5 more
openaire   +3 more sources

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

American Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd, Elise Cadiou, Alain G. Belliveau, Zoe A. Panchen, Terrell T. Roulston, Zoë Migicovsky   +5 more
wiley   +1 more source

Longitudinal Analysis of Honey Bee Colony Health as a Function of Pesticide Exposure

Agronomy
Sixty commercial honey bee colonies were monitored over the course of one year with the goal of assessing potential correlations between measured colony strength and environmental stressors, including exposures to pesticides and pathogens. We developed a
Susan E. Kegley, Rosemarie Radford, Timothy J. Brown, Jeff Anderson, Darren Cox, Steve Ellis, Geoffrey W. Marcy   +6 more
doaj   +1 more source

Phenological evaluation of three apple cultivars at Bom Retiro – SC, Brazil [PDF]

Biotemas, 2007
This work was conducted in a single apple orchard, located in Bom Retiro, Santa Catarina, in order to make a phenological assessment of the Imperatriz, Imperial Gala and Fuji cultivars planted there and their relationships with the physical conditions ...
Ana Frederica Latorre, Maria Tereza Bolzon Soster   +1 more
doaj  

Integrating developmental and macroevolutionary approaches reveals a staminodial origin of all alternisepalous organs in Caryophyllaceae

American Journal of Botany, EarlyView.
Abstract Premise The identity of sterile floral organs in second‐whorl, alternisepalous positions within Caryophyllaceae remains contentious, having been described as staminodes, “petaloids,” or petals homologous with those of other Pentapetalae. Limited ingroup and outgroup sampling and floral developmental data and inadequate phylogenetic comparative
Riley J. Rees, Andrea D. Appleton, John J. Schenk   +2 more
wiley   +1 more source

Buzzing Guardians Buzzing Guardians: Protecting Pollinators in Agricultural Landscapes

Sociobiology
In agriculture crop ecosystem, pollination is the foremost fundamental activity performed by fascinating creatures like bees, butterflies, hoverflies, birds and bats that ensures reproductive success in angiosperms.
Hunasikote Shamappa Venu , Amala Udayakumar, A.N. Shylesha, Timalapur M. Shivalingaswamy   +3 more
doaj   +1 more source

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

American Journal of Botany, EarlyView.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian, Emily B. Sessa, Richard S. Barclay, Regan E. Dunn, Jacquelyn L. Gill, Kirk R. Johnson, S. Augusta Maccracken, Ian M. Miller, Jarmila Pittermann, Ellen D. Currano   +9 more
wiley   +1 more source