Results 21 to 30 of about 13,734 (101)

Intoxicação por Senecio spp. (Compositae) em bovinos no sul do Brasil

Acta Scientiae Veterinariae, 2018
Plantas do genero Senecio sao nativas em varias regioes do mundo e consideradas causadoras de uma enfermidade de carater enzootico em bovinos, com importante reflexo na producao animal. Este trabalho descreve a ocorrencia de intoxicacao por Senecio spp.
Basile, João Roberto, Diniz, João Maria Ferraz, Okano, Werner, Cirio, Silvana Maris, Leite, Luiz Carlos   +4 more
openaire   +3 more sources

Chemical fingerprinting identifies Echium vulgare, Eupatorium cannabinum and Senecio spp. as plant species mainly responsible for pyrrolizidine alkaloids in bee-collected pollen [PDF]

Food Additives & Contaminants: Part A, 2017
Various studies have shown that bee-collected pollen sold as nutritional supplements may contain toxic pyrrolizidine alkaloids (PAs) and, thus, pose a potential health risk for consumers. The level of contamination may vary according to its geographical and botanical origin.
Christina Kast, Verena Kilchenmann, Hans Reinhard, Benoit Droz, Matteo Angelo Lucchetti, Arne Dübecke, Gudrun Beckh, Otmar Zoller   +7 more
openaire   +3 more sources

Long‐term surveillance reveals hybridization by nuclear reassortment and intercontinental spread as major evolutionary drivers in wheat yellow rust

New Phytologist, EarlyView.
Documented incursions of Puccinia striiformis 2009–2023 based on sequential resampling of MLGs/pathogen races on different continents. Summary Evolutionary forces affecting crop pathogens, including hybridization and long‐distance dispersal (LDD), may have strong implications for food security and sustainable plant disease control at global scales ...
Mogens Støvring Hovmøller, Tine Thach, Julian Rodriguez‐Algaba, Jens Grønbech Hansen, Marcel Meyer, David P. Hodson, Kumarse Nazari, Robert F. Park, Rita Tam, Mareike Möller, Benjamin Schwessinger, John P. Rathjen, Paula Silva, Venancio Riella, Annemarie Fejer Justesen   +14 more
wiley   +1 more source

Contrasting Refugial Dynamics in Central Apennine Sky‐Islands: A Comparative Phylogeography of Two Endemic Beetles

Journal of Biogeography, Volume 53, Issue 6, June 2026.
ABSTRACT Aim Quaternary climatic oscillations have profoundly shaped the genetic structure and geographic distributions of alpine biotas. Understanding how cold‐adapted taxa responded to past climatic shifts is essential for unravelling the processes shaping mountain biodiversity, yet cold‐adapted taxa may have followed divergent refugial histories. We
Emanuele Berrilli, Maurizio Biondi, Daniele Salvi   +2 more
wiley   +1 more source

The pollination ecology and mouthpart morphology of a pollen‐feeding fly Incurviseta cf. maculifrons (Diptera: Lauxaniidae) in the Australian Alpine

Physiological Entomology, Volume 51, Issue 2, Page 214-225, June 2026.
The Lauxaniid fly Incurviseta cf. maculifrons (Malloch, 1925) is a locally abundant but poorly understood flower visitor in the Australian Alpine. We describe the flower visitation, pollen transport, pollen diet and mouthpart morphology of I. cf. maculifrons using field observations, pollen analyses and scanning electron microscopy. I. cf.
Tomas Mitchell‐Storey, Francisco Encinas‐Viso, Joshua Botti‐Anderson, Joanne M. Bennett   +3 more
wiley   +1 more source

Pollinator conservation paradox: Exotic wildflowers provision native pollinators under anthropogenic changes

Ecosphere, Volume 17, Issue 5, May 2026.
Abstract Invasive wildflowers pose a conservation paradox: While they often reduce the diversity and abundance of native wildflowers, they can provide resources for native pollinators, including imperiled species. Previous work has framed wildflower invasions as outcomes of global change, but less is known about how interacting anthropogenic drivers ...
Rebecca A. Nelson, Eric W. Seabloom, Elizabeth T. Borer   +2 more
wiley   +1 more source

Alternative Approaches and Plant‐Based Remedies for Livestock Health Management Among the Batswana of Southern Africa: A Review

Chemistry &Biodiversity, Volume 23, Issue 4, April 2026.
ABSTRACT Due to limited access to, and the high cost of conventional veterinary services, Batswana communities often rely on ethnoveterinary practices for livestock health management. This review provides an in‐depth analysis on the ethnoveterinary uses, biological properties and safety assessment of plants utilised in livestock husbandry. A systematic
Tswelelopele G. Mpolokeng, Ndzalama Shikwambana, Mompati V. Chakale, John A. Asong, Lyndy J. McGaw, Stephen O. Amoo, Nqobile A. Masondo, Adeyemi O. Aremu   +7 more
wiley   +1 more source

Inundation Duration Shapes Germination of Native and Non‐Native Plant Assemblages From Floodplain Soil Seedbanks

Ecohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Episodic inundation regulates germination and recruitment from soil seedbanks, which are key processes driving vegetation dynamics in dryland floodplains. In the Murray‐Darling Basin, extensive floodplain modification and flow regulation have altered flow regimes so that anthropogenically controlled environmental watering is often required to ...
Jaiden Johnston‐Bates, Samantha J. Capon, Fran Sheldon, Jane A. Catford   +3 more
wiley   +1 more source

Post‐fire vegetation shifts: Role of invasives and seedbanks in an Australian grassy woodland ecosystem

Journal of Ecology, Volume 114, Issue 4, April 2026.
Wildfire and invasive species interact in a south‐eastern Australian grassy woodland, with the soil seedbank introducing predominantly non‐native species into the extant vegetation after fire. This influx can temporarily increase ecosystem flammability and promote a grass–fire cycle.
Sarah C. McColl‐Gausden, Craig R. Nitschke, Sabine Kasel   +2 more
wiley   +1 more source

Brown Bear (Ursus arctos) Field Sign Monitoring for 40 Years (1976–2015) in Northern Hokkaido, Japan, During a Wildlife Management Policy Shift

Ecological Research, Volume 41, Issue 2, March 2026.
Long‐term (1976–2015) field sign monitoring of brown bears in northern Hokkaido, Japan, yielded 2421 records (feeding signs, tracks, scats) along 9890 km of survey routes. The digitized spatiotemporal dataset provides insights into population dynamics, habitat use, and feeding behavior across a major wildlife management policy shift.
Hino Takafumi, Kanzi M. Tomita, Hiroto Takinami, Taiki Ito, Muku Tsujino, Kazuaki Ikeda, Yu Endo, Shiho Furumaki, Takuya Ono, Nobuo Ishiyama   +9 more
wiley   +1 more source