Results 41 to 50 of about 778 (160)

Beyond Extrafloral Nectaries: Plant Traits as Drivers of Spider Occurrence in the Cerrado

Austral Ecology, Volume 51, Issue 6, June 2026.
ABSTRACT Patterns of predator occurrence arise from a mosaic of plant‐derived cues, yet most studies address these traits in isolation. Although extrafloral nectaries have received considerable attention, we lack a comprehensive view of how multiple plant traits jointly affect the diversity and abundance of spiders.
Fábio Carlos da Silva Filho, Vanessa Stefani   +1 more
wiley   +1 more source

Morphology, ontogeny and structure of the stipular nectaries in Caamembeca spectabilis (Polygalaceae) [PDF]

Acta Amazonica, 2016
Nodal glands are found in one third of the Polygalaceae genera and have valuable taxonomic, ecological and evolutionary significance. In Brazil, they occur in five of the eleven genera already registered.
Joana Patrícia Pantoja Serrão FILGUEIRA, Tatiani Yuriko Souza KIKUCHI, Márlia Regina COELHO-FERREIRA   +2 more
doaj   +2 more sources

Arthropods on native versus alien woody plants: Understanding variation across host plant taxonomy and geography

Ecosphere, Volume 17, Issue 5, May 2026.
Abstract Alien plants have generally been shown to support reduced arthropod abundance, biomass, and diversity compared to native plant species, but inferences have typically come from studies limited in taxonomic and geographic scope. Here, we make use of data from a unique citizen science project, Caterpillars Count!, that consists of nearly 70,000 ...
Colleen Whitener, Allen H. Hurlbert
wiley   +1 more source

Plant species and floral traits shape arthropod communities in prairie plantings more than neonicotinoid contamination

Ecosphere, Volume 17, Issue 5, May 2026.
Abstract Agricultural practices are significant drivers of biodiversity loss, leading to reductions in ecological function and services across regions. To mitigate these effects, habitat restorations within agroecosystems have gained prominence as a strategy to enhance ecological stability and increase biodiversity.
Jonathan Tetlie, Alexandra Harmon‐Threatt   +1 more
wiley   +1 more source

Sugar provisioning increases parasitoid numbers in agroecosystems but may not reduce pest densities: A meta‐analysis

Journal of Applied Ecology, Volume 63, Issue 5, May 2026.
Our findings demonstrate that providing sugar sources reliably supports parasitoid populations and parasitism rate but does not systematically translate into improved pest suppression or yield gains. These results suggest that, for economic and practical reasons, sugar inputs at the edge of cultivated fields should be favoured.
Martin Luquet, Blas Lavandero, Emmanuel Desouhant, Bruno Jaloux   +3 more
wiley   +1 more source

An inverse latitudinal gradient in intraspecific genetic diversity of a dominant ant in the neotropical savanna

Ecosphere, Volume 17, Issue 4, April 2026.
Abstract Although latitudinal gradient of diversity (LGD) is a biogeographic pattern widely shown for distinct animal groups, some display the opposite pattern, with biodiversity peaking away from the equator. These inverse gradients may result from drivers that also overlap with extrinsic factors shaping genetic diversity across taxa, a level of ...
Marianne Azevedo‐Silva, Marina C. Côrtes, Sebastian F. Sendoya, Pedro A. S. Longo, Anselmo Nogueira, Gustavo M. Mori, Shun K. Hirota, Yoshihisa Suyama, A. P. de Souza, Paulo S. Oliveira   +9 more
wiley   +1 more source

Ants visit nectaries of Epidendrum denticulatum (Orchidaceae) in a Brazilian rainforest: effects on herbivory and pollination

Brazilian Journal of Biology
Epidendrum denticulatum (Orchidaceae) produces nectar on the petioles of buds, flowers, and fruits (extrafloral nectaries) but no nectar is found on its flowers, and it is probably a deceptive species.
A. M. Almeida, R. A. Figueiredo
doaj   +1 more source

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

Nordic Journal of Botany, Volume 2026, Issue 4, April 2026.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho, D. Victor Souza e Silva, William Matzenauer, Yuri Couceiro, Marccus Alves   +4 more
wiley   +1 more source

Chemical defense responses of upland cotton, Gossypium hirsutum L. to physical wounding

Plant Direct, 2019
Upland cotton (Gossypium hirsutum L.) produces terpenoid aldehydes (TAs) that protect the plant from microbial and insect infestations. Foliar TAs include plus (+)‐ and minus (−)‐gossypol, hemigossypolone, and heliocides.
Sang‐Hyuck Park, Jodi Scheffler, Brian Scheffler, Charles L. Cantrell, Christopher S. Pauli   +4 more
doaj   +1 more source

Alternative flowering crops as potential food sources for beneficial arthropods

Journal für Kulturpflanzen, 2017
Various flowering crops (buckwheat, caraway, carrot, faba bean, flax, lupine, milk thistle, mustard, parsnip, phacelia) were evaluated for their suitability in providing nutritional resources for natural enemies and pollinators in small scale field ...
Annette Herz
doaj   +1 more source