Results 61 to 70 of about 33,699 (313)

Biodiversitätsmonitoring im Südtiroler Kräuteranbau

open access: yesJulius-Kühn-Archiv, 2023
Der Anbau von Arznei- und Gewürzpflanzen zeichnet sich in der Regel durch vielfältige Anbaukulturen auf relativ kleinen Flächen aus. Dies gilt insbesondere für Südtirol, wo diese Kulturen hauptsächlich von kleinen Betrieben im Berggebiet angebaut werden.
Obwegs, Lisa   +8 more
doaj   +1 more source

The influence of pigmentation patterning on bumblebee foraging from flowers of Antirrhinum majus [PDF]

open access: yes, 2013
Patterns of pigmentation overlying the petal vasculature are common in flowering plants,and have been postulated to play a role in pollinator attraction.
Milne, Georgina   +11 more
core   +1 more source

Advancing European Plant Variety Registration: Data‐Driven Insights and Stakeholder Perspectives

open access: yesAgribusiness, EarlyView.
ABSTRACT Efficient plant variety registration is crucial for fostering innovation in the European Union, yet the current regulatory framework is complex and faces calls for reform. This study provides data‐driven evidence to inform the ongoing legislative debate by employing a mixed‐methods approach.
Sergio Urioste Daza   +2 more
wiley   +1 more source

The C-type lectin AcCTL5 from Apis cerana mediates anti-Nosema ceranae defense via agglutination and hemolymph melanization

open access: yesVirulence
Unlike vertebrates, which use adaptive immunity, insects depend on humoral and cellular innate immunity to resist pathogens, with pattern recognition receptors (PRRs) like C-type lectins (CTLs) critical for recognizing pathogen-associated molecular ...
Dufu Li   +8 more
doaj   +1 more source

Pervasiveness of Parasites in Pollinators [PDF]

open access: yesPLoS ONE, 2012
Many pollinator populations are declining, with large economic and ecological implications. Parasites are known to be an important factor in the some of the population declines of honey bees and bumblebees, but little is known about the parasites afflicting most other pollinators, or the extent of interspecific transmission or vectoring of parasites ...
Sophie E F Evison   +8 more
openaire   +4 more sources

Why flower visitation is a poor proxy for pollination : measuring single-visit pollen deposition, with implications for pollination networks and conservation

open access: yes, 2013
Funding: NERC studentship (CK - NE/H527291/1), St Andrews Scholarship (GB)Summary The relative importance of specialized and generalized plant-pollinator relationships is contentious, yet analyses usually avoid direct measures of pollinator quality ...
Ballantyne, Gavin   +4 more
core   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios   +4 more
wiley   +1 more source

Using stable isotopes in hummingbird breath to estimate reliance on supplemental feeders

open access: yesEcology and Evolution, 2023
Understanding the ecological consequences of supplemental feeding to both hummingbirds and the plants they pollinate is complicated by logistical challenges associated with assessing relative dietary resource use with commonly applied observational ...
Nathan Wolf   +3 more
doaj   +1 more source

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

Multidimensional Profiling of Senescence in Eastern Honey Bee, Apis cerana (Hymenoptera: Apidae), Workers: Morphology, Microstructure, and Transcriptomics

open access: yesInsects
Worker honey bees are crucial for colony stability and ecosystem pollination. However, the cross-scale aging features and underlying mechanisms in the Eastern honey bee (Apis cerana) remain poorly understood.
Qiang Ma   +8 more
doaj   +1 more source

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