Results 81 to 90 of about 7,904 (250)

Nectar Theft and Floral Ant-Repellence: A Link between Nectar Volume and Ant-Repellent Traits?

PLoS ONE, 2012
As flower visitors, ants rarely benefit a plant. They are poor pollinators, and can also disrupt pollination by deterring other flower visitors, or by stealing nectar. Some plant species therefore possess floral ant-repelling traits. But why do particular species have such traits when others do not?
Ballantyne, Gavin Andrew, Willmer, Patricia Gillian   +1 more
openaire   +6 more sources

Pollinator community composition and pollen resource use in calcareous grasslands under different landscape contexts across Europe

Journal of Animal Ecology, EarlyView.
In this paper, we show that pronounced differences in pollinator communities exist between grasslands embedded in contrasting agricultural landscape contexts. Opportunistic foraging strategies of most pollinators resulted in large interaction turnover, but these shifts did not translate into major changes in overall network structure, most likely as a ...
Olivia Bernhardsson, Epp Valdaru, Tsipe Aavik, Lucie M. Baltz, Tomáš Dostálek, L. Marie Ende, Khalil Jegham, Marianne Kivastik, Zuzana Münzbergová, Hana Pánková, Jan Plue, Patrycja Pluta, Iris Reinula, Virve Sõber, Panagiotis Theodorou, Sabrina Träger, Mari‐Liis Viljur, Hans Jacquemyn   +17 more
wiley   +1 more source

Nectar in Plant–Insect Mutualistic Relationships: From Food Reward to Partner Manipulation

Frontiers in Plant Science, 2018
It has been known for centuries that floral and extra-floral nectar secreted by plants attracts and rewards animals. Extra-floral nectar is involved in so-called indirect defense by attracting animals (generally ants) that prey on herbivores, or by ...
Massimo Nepi, Donato A. Grasso, Stefano Mancuso   +2 more
doaj   +1 more source

Floral nectar production in Helleborus foetidus: an ultrastructural study

Botany, 2012
The floral nectaries of Helleborus foetidus L. were studied using scanning and transmission electron microscopy, as well as light microscopy. Nectaries are tubular and consist of an external epidermis, a photosynthesizing parenchyma, large branches of vascular tissue, a nectar-producing parenchyma, and an internal epidermis.
Vesprini J., Pacini E., Nepi M.
openaire   +4 more sources

Optimising daily sampling of plant–bee interaction networks

Journal of Animal Ecology, EarlyView.
Daily variation in ecological interaction networks is rarely quantified due to limited temporal sampling, yet network structure may change substantially within a single day. We show that plant–bee networks exhibit strong intraday shifts in composition and structure, and that sampling distributed across key daily periods better captures network ...
Caio S. Ballarin, Jorge Isla, Blanca Arroyo‐Correa, Elena Quintero, Leandro Hachuy‐Filho, Felipe W. Amorim, Pedro Jordano   +6 more
wiley   +1 more source

Offspring performance does not explain oviposition preference in the leafminer Stigmella sorbi (Lepidoptera: Nepticulidae): a tri‐trophic perspective

Insect Science, EarlyView.
We studied oviposition site selection in a leaf‐mining moth (Stigmella sorbi) on rowan trees (Sorbus aucuparia) in northwestern Russia, assessing larval performance across different shoot types, leaf positions, and leaflets. Larval survival was highest on long vegetative shoots, yet females showed no preference for these optimal sites.
Mikhail V. Kozlov, Vitali Zverev
wiley   +1 more source

Drought response and urban-pollinator attractiveness of ornamental plant species

Basic and Applied Ecology
Faced with pollinator declines, cities could serve as refuges for biodiversity conservation by managing floral resources in public green spaces. Ornamental plants could play an important role in attracting pollinators because they form part of urban ...
Margaux Quinanzoni, David Marcolet, Alice Michelot-Antalik   +2 more
doaj   +1 more source

Characterization of the dynamic microbiome evolution across thrips species

Insect Science, EarlyView.
Comprehensive survey of the microbiome in thrips. The dominant bacterial genera found in thrips include intracellular ones, such as Wolbachia and Spiroplasma, and extracellular ones, including Serratia, Pantoea, and Acinetobacter. We isolated and sequenced high‐quality genomes of two dominant symbionts, Pantoea dispersa and Serratia marcescens.
Xiaodi Hu, Zhaohui Shi, Yangwei Gao, Hanze Zheng, Lin Lin, Jian‐Ping Chen, Yong Chen, Chuan‐Xi Zhang, Yiyuan Li   +8 more
wiley   +1 more source

Climatic conditions, landscape, and habitat quality drive patch occupancy and larval density of a threatened mire butterfly

Insect Science, EarlyView.
The Moorland Clouded Yellow (Colias palaeno) benefited from cattle grazing in three different ways by (i) fostering the nectar supply; (ii) enhancing rejuvenation of the host plant (Vaccinium uliginosum); and (iii) improving microclimatic conditions for successful development of the immature stages.
Florian Fumy, Stefan Hafner, Georg Paulus, Thomas Fartmann   +3 more
wiley   +1 more source

Ant-Pollinator Conflict Results in Pollinator Deterrence but no Nectar Trade-Offs

Frontiers in Plant Science, 2018
Direct and indirect negative interactions between ant guards and pollinators on ant-plants are expected for two reasons. First, aggressive ants may deter pollinators directly.
Nora Villamil, Karina Boege, Graham N. Stone   +2 more
doaj   +1 more source