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93 results for “flower visitation”
Data from: Bees use the taste of pollen to determine which flowers to visit
Pollen plays a dual role as both a gametophyte and a nutritional reward for pollinators. Although pollen chemistry varies across plant species, its functional significance in pollination has remained obscure, in part because little is known about how floral visitors assess it. Bees rely on pollen for protein, but whether foragers evaluate its chemistry is unclear, as it is primarily consumed by larvae. We asked whether the chemical composition of pollen influences bumblebees' foraging behaviour. Using putatively sweet and bitter pollen blends, we found that chemical composition influenced two aspects of bee behaviour relevant to plant fitness: the amount of pollen collected and the likelihood of subsequently visiting a visually similar flower. These findings offer a new perspective on the nutritional ecology of plant–pollinator interactions, as they show that pollen's taste may mediate its collection and transfer.
Fig. 3 in Flower-visiting behaviour and habitats of the taxa of the Andrena wollastoni group (Hymenoptera, Anthophila, Micrandrena) on the Canary Islands compared to the Madeira Archipelago *
Fig. 3: Plant family preferences of the taxa of the A. wollastoni group and A. lineolata in the Madeira Archipelago and the Canary Islands (only flower-visiting interactions by females are shown); for specific numbers of interactions, see text.
Figures 54-59 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figures 54-59 - Zygophyllaceae: 54 Fagonia indica 55, 56 Tribulus macropterus 57, 58 Zygophyllum qatarense 59 Zygophyllum simplex.
Figure 5 from: Tan MK, Artchwakom T, Abdul Wahab RH, Lee C-Y, Belabut DM, Wah Tan HT (2017) Overlooked flower-visiting Orthoptera in Southeast Asia. Journal of Orthoptera Research 26: 143-153. https://doi.org/10.3897/jor.26.15021
Figure 5 - Examples of flower-visiting orthopterans on native plant species: A. Alloteratura species on Dillenia suffruticosa in Singapore, B. Tremellia timah on Dillenia suffruticosa in Singapore, C. Elimaea carinata on Melastoma malabathricum in Singapore, and D. Ornebius rufonigrus on Ixora congesta in Singapore.
Figure 1 from: Tan MK, Artchwakom T, Abdul Wahab RH, Lee C-Y, Belabut DM, Wah Tan HT (2017) Overlooked flower-visiting Orthoptera in Southeast Asia. Journal of Orthoptera Research 26: 143-153. https://doi.org/10.3897/jor.26.15021
Figure 1 - Map of Southeast Asia with black squares indicating sampling locations between 2015–2017.
Figure 4 from: Tan MK, Artchwakom T, Abdul Wahab RH, Lee C-Y, Belabut DM, Wah Tan HT (2017) Overlooked flower-visiting Orthoptera in Southeast Asia. Journal of Orthoptera Research 26: 143-153. https://doi.org/10.3897/jor.26.15021
Figure 4 - Examples of unidentified Phaneropterinae nymphs visiting flowers of various plants: A. Dillenia suffruticosa in Singapore, B. Acacia auriculiformis in Singapore, C. Costus lucanusianus in Singapore, D. Youngia japonica in Bukit Larut, E. Praxelis clematidea in Sakaerat, and F. Lantana camara in Sakaerat.
Figure 2 from: Tan MK, Artchwakom T, Abdul Wahab RH, Lee C-Y, Belabut DM, Wah Tan HT (2017) Overlooked flower-visiting Orthoptera in Southeast Asia. Journal of Orthoptera Research 26: 143-153. https://doi.org/10.3897/jor.26.15021
Figure 2 - The interaction web between flower-visiting orthopterans (right row) and flower species (left row) in Southeast Asia. The width of the linkage represents the number of observations. Legends for orthopteran families: Acri = Acrididae; Grylla = Gryllacrididae; Grylli = Gryllidae; Mogo = Mogoplistidae; Pyrg =Pyrgomorphidae; Tett = Tettigoniidae. Legends for flower families: Aca = Acanthaceae; Ama = Amaryllidaceae; Apo = Apocynaceae; Ast = Asteraceae; Con = Convolvulaceae; Cos = Costaceae; Dil = Dilleniaceae; Fab = Fabaceae; Mal = Malvaceae; Mel = Melastomataceae; Orc = Orchidaceae; Poa = Poaceae; Rub = Rubiaceae; Ver = Verbenaceae; Vit = Vitaceae.
Figure 6 from: Tan MK, Artchwakom T, Abdul Wahab RH, Lee C-Y, Belabut DM, Wah Tan HT (2017) Overlooked flower-visiting Orthoptera in Southeast Asia. Journal of Orthoptera Research 26: 143-153. https://doi.org/10.3897/jor.26.15021
Figure 6 - Examples of flower-visiting orthopterans visiting weedy Praxelis clematidea in Sakaerat: A. Ceracris cf. fasciata, B. Chlorizeina cf. unicolor, C. Dialarnaca? species, D. Velarifictorus (Pseudocoiblemmus) bilobus, E. Ducetia melodica, F. Paraducetia cruciata and G. Letana rubescens.
Figure 3 from: Tan MK, Artchwakom T, Abdul Wahab RH, Lee C-Y, Belabut DM, Wah Tan HT (2017) Overlooked flower-visiting Orthoptera in Southeast Asia. Journal of Orthoptera Research 26: 143-153. https://doi.org/10.3897/jor.26.15021
Figure 3 - Examples of common flower-visiting orthopterans from Southeast Asia: A. Phaneroptera brevis feeding on the anthers of Tithonia diversifolia in Bukit Larut, B. Nisitrus species feeding on the petals of Centrosema molle in Ulu Temburong, C. Valanga nigricornis feeding on a corolla lobe of Hibiscus rosa-sinensis in Pulau Tioman, D. Conocephalus species feeding on the florets of Ageratum conyzoides, E. Xenocatantops humilis feeding on a corolla lobe of Gardenia jasminoides in Singapore, and F. Atractomorpha species on the corolla of Ipomoea pes-caprae in Pulau Tioman.
Figures 17-19 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figures 17-19 - Study sites to east of DDCR: 17 Site 2. Shawka dam Rumex dentatus (Polygonaceae) fringing the area from which water had retreated 18 Site 3. Wadi in Hajar Mountains 19 Site 6. Khor Kalba, Ramsa outside Mangrove and Alhafeya Protected Area.
Figures 2-7 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figures 2-7 - Study sites in DDCR: 2 Site 8 – Quarn Nazwa, watering point 3 Site 8 – Quarn Nazwa, southeast slope 4 Site 10 – Tawi Ruwayyan 5 Site 14 – Dune grazing and browsing exclusion plot 6 Site 15 – Gravel plain without irrigation 7 Site 17. Irrigated planted trees in netting cages.
Figures 14-16 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figures 14-16 - Study sites to the west of DDCR: 14 Crossing from the DDCR to the coast the dunes level out and the dominant plants are scattered plants of Zygophyllum species (Zygophyllaceae), not found within the DDCR 15 Site 28. Ghantoot. In addition to Zygophyllum qatarense (Zygophyllaceae), well grown plants of Heliotropium kotschyi (Boraginaceae) were abundant and in flower 16 Site 30. EMEC, coastal sand inland from beach.
Figure 1 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figure 1 - Map of the UAE with inset enlargement of the DDCR, giving the positions of the collection sites.
Figures 26-29 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figures 26-29 - Asteraceae: 26 Centaurea pseudosinaica 27, 28 Rhanterium epapposum 29 Launaea procumbens.
Figures 8-13 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figures 8-13 - Study sites in DDCR: 8 Site 19/20 Tawi Manana Lake 9 Site 19/20 Tawi Manana drip irrigation area 10 Site 24 Lucerne Farm 11 Site 24 Lucerne Farm grazing and browsing exclusion area 12 Site 25 Sand dunes with isolated Calotropis procera trees 13 Site 26 Faqah watering point with planted Prosopis cineraria.
Figures 22-25 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figures 22-25 - Apocynaceae, Asclepiadoideae: 22, 23 Calotropis procera 24, 25 Leptadenia pyrotechnica.
Figures 30-34 from: Gess SK, Roosenschoon PA (2016) A preliminary survey of flower visiting by aculeate wasps and bees in the Dubai Desert Conservation Reserve, UAE. Journal of Hymenoptera Research 52: 81-141. https://doi.org/10.3897/jhr.52.10034
Figures 30-34 - Boraginaceae: 30 Arnebia hispidissima 31, 32 Heliotropium kotschyi 33, 34 Moltkiopsis ciliata.
Data from: Dispersal of fungi spores by non-specialized flower-visiting birds
Birds are important biotic dispersers of a wide range of propagules. Fungi spores are mainly dispersed by wind. Nevertheless there are several animals known to disperse fungi spores, which might be particularly important if spores are delivered to particularly favourable sites i.e. directed dispersal. This may be especially important for fungi that require specific microsites such as flowers. We sampled birds for the presence of fungi spores and pollen grains during one year at two forest sites in central Portugal. We found that out of the 894 birds sampled, 131 individuals from 11 species carried spores from at least 6 morphological types, mainly during winter. The great majority of birds found to carry fungi spores was also found to carry pollen grains, suggesting that they were feeding on flowers which are the main origin of the spores. This co-dispersion of pollen and fungi spores suggest that the latter are not randomly dispersed on the environment, but are likely to have an increased probability of being deposited on flowers propitious to fungi development. Our results suggest that directed dispersal of fungi by flower-visiting birds might by a common and under-appreciated phenomenon with potentially important ecological, biogeographic and even economic outcomes.
Data from: Dispersal of fungi spores by non-specialized flower-visiting birds
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Data from: Enhancing gardens as habitats for flower-visiting aerial insects (pollinators): should we plant native or exotic species?
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