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41. On the Use of Stable Hydrogen Isotope Measurements (δ2H) to Discern Trophic Level in Avian Terrestrial Food Webs

Author:
van Wijk, Rien E.; Barshep, Yahkat; Hobson, Keith A.
Source:
Diversity 2021 v.13 no.5
ISSN:
1424-2818
Subject:
nectar feeding,   etc   ; birds; canopy; diet; forests; frugivores; granivores; insectivores; migratory behavior; shrublands; trophic levels; Nigeria;     Show all 12 Subjects
Abstract:
... The measurement of stable hydrogen isotope ratios (δ²H) in animal tissues is a popular means of inferring spatial origins and migratory connections. However, the use of this isotope to infer diet and potentially trophic position remains poorly understood, especially in non-aquatic terrestrial ecosystems. In many animal communities, tissue δ¹⁵N values are strongly associated with trophic position. ...
DOI:
10.3390/d13050202

42. Bioactive compounds in Apis mellifera monofloral honeys

Author:
Viteri, Rafael; Zacconi, Flavia; Montenegro, Gloria; Giordano, Ady
Source:
Journal of food science 2021 v.86 no.5 pp. 1552-1582
ISSN:
0022-1147
Subject:
nectar,   etc   ; Apis mellifera; antioxidants; food science; honey; honey bees; saliva; sweetness; therapeutics;     Show all 9 Subjects
Abstract:
... Honey is a natural product with a sweet flavor. Honey is made by the honeybee (Apis mellifera L.) from the nectar of flowers or other plant secretions that are collected near the hive. These products are mixed with bee saliva and stored. Several studies have demonstrated that honey exhibits antioxidant, antimicrobial, nematicidal, antifungal, anticancer, and anti‐inflammatory activities. These pro ...
DOI:
10.1111/1750-3841.15706

43. GoNe encoding a class VIIIb AP2/ERF is required for both extrafloral and floral nectary development in Gossypium

Author:
Pei, Yanfei; Zhang, Jun; Wu, Peng; Ye, Li; Yang, Duofeng; Chen, Jiedan; Li, Jie; Hu, Yan; Zhu, Xiefei; Guo, Xiaoping; Zhang, Tianzhen
Source:
Theplant journal 2021 v.106 no.4 pp. 1116-1127
ISSN:
0960-7412
Subject:
nectar,   etc   ; Gossypium; cotton; evolution; genes; nectaries; phenotype; plant reproduction; point mutation; tetraploidy;     Show all 10 Subjects
Abstract:
... The floral nectary, first recognized and described by Carl Linnaeus, is a remarkable organ that serves to provide carbohydrate‐rich nectar to visiting pollinators in return for gamete transfer between flowers. Therefore, the nectary has indispensable biological significance in plant reproduction and even in evolution. Only two genes, CRC and STY, have been reported to regulate floral nectary devel ...
DOI:
10.1111/tpj.15223

44. Net benefits of a mutualism: Influence of the quality of extrafloral nectar on the colony fitness of a mutualistic ant

Author:
Calixto, Eduardo Soares; Lange, Denise; Del‐Claro, Kleber
Source:
Biotropica 2021 v.53 no.3 pp. 846-856
ISSN:
0006-3606
Subject:
nectar,   etc   ; Camponotus; adults; ant colonies; carbohydrates; liquids; mutualism; nitrogen; nutrient content; probability;     Show all 10 Subjects
Abstract:
... AIM: Extrafloral nectar, a carbohydrate‐rich liquid, is the main plant‐based resource offered in exchange for ant protection. The positive results of this protection provided by ants are widely studied and supported; however, studies showing the benefits that ants and their colonies have from the resources offered by plants such as extrafloral nectar are scarce. Here, we evaluated how extrafloral ...
DOI:
10.1111/btp.12925

45. Nitrogen Assimilation Varies Among Clades of Nectar- and Insect-Associated Acinetobacters

Author:
Álvarez-Pérez, Sergio; Tsuji, Kaoru; Donald, Marion; Van Assche, Ado; Vannette, Rachel L.; Herrera, Carlos M.; Jacquemyn, Hans; Fukami, Tadashi; Lievens, Bart
Source:
Microbial ecology 2021 v.81 no.4 pp. 990-1003
ISSN:
0095-3628
Subject:
nectar,   etc   ; Acinetobacter; ammonium; growth performance; microbial ecology; nitrogen; phenotype; phylogeny; provenance; urea;     Show all 10 Subjects
Abstract:
... Floral nectar is commonly colonized by yeasts and bacteria, whose growth largely depends on their capacity to assimilate nutrient resources, withstand high osmotic pressures, and cope with unbalanced carbon-to-nitrogen ratios. Although the basis of the ecological success of these microbes in the harsh environment of nectar is still poorly understood, it is reasonable to assume that they are effici ...
DOI:
10.1007/s00248-020-01671-x

46. Rapid evolution of a floral trait following acquisition of novel pollinators

Author:
Mackin, Christopher R.; Peña, Julián F.; Blanco, Mario A.; Balfour, Nicholas J.; Castellanos, Maria Clara
Source:
Thejournal of ecology 2021 v.109 no.5 pp. 2234-2246
ISSN:
0022-0477
Subject:
nectar,   etc   ; Digitalis purpurea; Neotropics; corolla; evolutionary adaptation; floral characteristics; natural selection; pollen; pollinators; reproductive success;     Show all 10 Subjects
Abstract:
... Changes in the pollinator assemblage visiting a plant can have consequences for reproductive success and floral evolution. We studied a recent plant trans‐continental range expansion to test whether the acquisition of new pollinator functional groups can lead to rapid adaptive evolution of flowers. In Digitalis purpurea, we compared flower visitors, floral traits and natural selection between nati ...
DOI:
10.1111/1365-2745.13636

47. Seasonal and vertical distribution of floral resources and its implications for the conservation of pollinators

Author:
Silva, Cláudia Inês da; Filho, Alípio José de Souza Pacheco; Toppa, Rogério Hartung; Arena, Mariana Victorino Nicolosi; Oliveira, Paulo Eugênio de
Source:
Flora 2021 v.278 pp. 151787
ISSN:
0367-2530
Subject:
nectar,   etc   ; biodiversity; cerrado; ecosystems; flora; forests; oils; phenology; pollen; pollination; savannas; spatial distribution; Brazil;     Show all 13 Subjects
Abstract:
... The diversity of plant species in blooming throughout the year is a way of ensuring the presence of floral resources, as the spatiotemporal distribution of these resources assists in the movement of pollinators and guarantees local ecosystem services. The aim of this study was to describe the seasonal variations in the vertical distribution of the floral resources that keep the pollinators in Cerr ...
DOI:
10.1016/j.flora.2021.151787

48. Behavioural and ecological data on Dryudella stigma (Panzer, 1809) (Hymenoptera, Astatidae) with the first description of the mature larva

Author:
Olszewski, Piotr; Bogusch, Petr; Mięsikowski, Michał; Baños-Picón, Laura; Puchałka, Radosław
Source:
Journal of Hymenoptera research 2021 v.82 pp. 305-316
ISSN:
1314-2607
Subject:
nectar,   etc   ; Achillea millefolium; Aelia acuminata; Coreidae; Hymenoptera; Rhopalidae; burrows; eggs; females; larvae; research; stigma; Poland;     Show all 13 Subjects
Abstract:
... Data on the bionomics of Dryudella stigma (Panzer, 1809) in Poland are presented. The larva is described for the first time for a European Dryudella, and second in the world with only larva of D. immigrans described before. The egg stage lasts 2–3 days, and the larval stage 11–14 days. The praepupal stage lasts the longest time and overwinters in a cocoon from mid-July to the end of May. The femal ...
DOI:
10.3897/jhr.82.63594

49. Energetic efficiency of foraging mediates bee niche partitioning

Author:
Balfour, Nicholas J.; Shackleton, Kyle; Arscott, Natalie A.; Roll‐Baldwin, Kimberley; Bracuti, Anthony; Toselli, Gioelle; Ratnieks, Francis L.W.
Source:
Ecology 2021 v.102 no.4 pp. e03285
ISSN:
0012-9658
Subject:
nectar,   etc   ; body weight; energy costs; energy efficiency; flowers; honey; species diversity; tongue;     Show all 8 Subjects
Abstract:
... Revitalizing our understanding of species distributions and assembly in community ecology requires greater use of functional (physiological) approaches based on quantifiable factors such as energetics. Here, we explore niche partitioning between bumble and honey bees by comparing a measure of within‐patch foraging efficiency, the ratio of flower visitation rate (proportional to energy gain) to bod ...
DOI:
10.1002/ecy.3285

50. How did the agricultural policy during the communist period affect the decline in orchid biodiversity in central and eastern Europe?

Author:
Štípková, Zuzana; Tsiftsis, Spyros; Kindlmann, Pavel
Source:
Global ecology and conservation 2021 v.26 pp. e01498
ISSN:
2351-9894
Subject:
nectar,   etc   ; Orchidaceae; agricultural policy; biodiversity; decline; flora; wildlife management; Czech Republic; Eastern European region;     Show all 9 Subjects
Abstract:
... One of the key goals of conservation biology is to determine what causes declines in biodiversity and suggest ways of stopping or slowing them down. Studies on the temporal changes in the distributions of species provide critical information on temporal trends in local extinctions and information on what causes these changes. This is especially true for endangered groups of plants, such as orchids ...
DOI:
10.1016/j.gecco.2021.e01498

51. Identification of simple sequence repeat (SSR) and single nucleotide polymorphism (SNP) that are associated with the nectariless trait of Gossypium hirsutum L

Author:
Park, Sang-Hyuck; Scheffler, Jodi A.; Ray, Jeffery D.; Scheffler, Brian E.
Source:
Euphytica 2021 v.217 no.4 pp. 78
ISSN:
0014-2336
Subject:
nectar,   etc   ; DNA; Gossypium hirsutum; Lygus; calyx; cotton; cultivars; microsatellite repeats; phenotype; single nucleotide polymorphism; stomata;     Show all 11 Subjects
Abstract:
... Cotton (Gossypium hirsutum L.) has nectar containing modified stomates called nectaries that can be located on leaves, bracts or calyces. The nectar attracts some beneficial insects such as bees, but also predatory damaging insects such as heliothines and Lygus species. There is a naturally occurring mutation that eliminates the nectar containing nectaries and makes the cotton plants less attracti ...
DOI:
10.1007/s10681-021-02799-8

52. Soil Humus, Iron, Sulphate and Magnesium Content Affect Nectar Traits of Wild Garlic (Allium ursinum L.)

Author:
Bodó, Alexandra; Farkas, Ágnes; Nagy, Dávid U.; Rudolf, Kinga; Hoffmann, Richárd; Kocsis, Marianna; Morschhauser, Tamás
Source:
Plants 2021 v.10 no.3
ISSN:
2223-7747
Subject:
nectar,   etc   ; Allium ursinum; Allium vineale; bees; habitats; humus; iron; magnesium; microclimate; sugar content; sugars; sulfates;     Show all 12 Subjects
Abstract:
... Recent studies revealed that from various ecological factors influencing nectar yield and quality of a plant, soil properties can be as important as microclimatic features. To date, few studies have investigated the relationship of soil characters to nectar traits of bee pollinated plants growing in natural associations. Our study intended to reveal which soil properties had the most powerful impa ...
DOI:
10.3390/plants10030597

53. Effects of pollen and nectar inoculation by yeasts, bacteria or both on bumblebee colony development

Author:
Pozo, María I.; Mariën, Toon; van Kemenade, Gaby; Wäckers, Felix; Jacquemyn, Hans
Source:
Oecologia 2021 v.195 no.3 pp. 689-703
ISSN:
0029-8549
Subject:
nectar,   etc   ; Bombus terrestris; Torulaspora delbrueckii; animals; diet; evolution; intestinal microorganisms; males; nests; pollen; sugars;     Show all 11 Subjects
Abstract:
... It is increasingly recognized that gut microbiota have a major effect on the physiology, biology, ecology and evolution of their animal hosts. Because in social insects, the gut microbiota is acquired through the diet and by contact with nest provisions, it can be hypothesized that regular supplementation of microorganisms to the diet will have an impact on the fitness of the consumer and on the d ...
DOI:
10.1007/s00442-021-04872-4

54. Slow learning of feeding skills in a nocturnal extractive forager

Author:
Maynard, Keely Q.; Birot, Hélène; Campera, Marco; Imron, Muhammad Ali; Jasso del Toro, Cristina; Poindexter, Stephanie A.; Nekaris, K.A.I.
Source:
Animal behaviour 2021 v.173 pp. 1-7
ISSN:
0003-3472
Subject:
nectar,   etc   ; Nycticebus; adults; animal behavior; diet; early development; ontogeny; reproduction; sexual maturity; Indonesia;     Show all 10 Subjects
Abstract:
... A long developmental period in animals is often needed to learn skills for adult reproduction and survival, including feeding behaviour. The nocturnal Javan slow loris, Nycticebus javanicus, is unusual in that it consumes a specialized diet of difficult to extract resources, as well as disperses up to a year after sexual maturity. Here, we examined the ontogeny of its feeding behaviour to understa ...
DOI:
10.1016/j.anbehav.2020.12.015

55. The impact of home storage conditions on the accumulation of acrylamide precursors in potato tubers

Author:
Ducreux, Laurence J. M.; Pont, Simon D. A.; Verrall, Susan R.; McManus, William; Hancock, Robert D.; Taylor, Mark A.
Source:
Annals of applied biology 2021 v.178 no.2 pp. 304-314
ISSN:
0003-4746
Subject:
nectar,   etc   ; acrylamides; asparagine; cold storage; cultivars; potatoes; refrigerators; shelf life; storage temperature; sugar content; wastes;     Show all 11 Subjects
Abstract:
... The aim of this work was to investigate the impact of domestic storage conditions on total reducing sugars and free asparagine in fresh potatoes to understand the implications for acrylamide‐forming potential. Current advice to consumers is that potatoes should be stored in a dark cool place, but not in the refrigerator based on an expectation that home storage in the refrigerator will result in “ ...
DOI:
10.1111/aab.12634

56. Agronomic Traits in Oilseed Rape (Brassica napus) Can Predict Foraging Resources for Insect Pollinators

Author:
Fairhurst, Stacey M.; Cole, Lorna J.; Kocarkova, Tereza; Jones-Morris, Catherine; Evans, Andy; Jackson, Gail
Source:
Agronomy 2021 v.11 no.3
ISSN:
2073-4395
Subject:
nectar,   etc   ; Brassica napus; agronomic traits; agronomy; early development; hybrids; pollen; pollination; rapid methods; vigor; winter hardiness;     Show all 11 Subjects
Abstract:
... Mass-flowering crops, such as oilseed rape (OSR; Brassica napus), provide pulses of nectar and pollen, helping to support pollinators and their pollination services in agricultural landscapes. Despite their value to declining pollinators, varietal in-field OSR testing focusses on agronomic traits, with floral resources being largely overlooked. OSR has a high varietal turnover, and consequently, f ...
DOI:
10.3390/agronomy11030440

57. Bioecological and Behavioral Interaction between Pollinating Bees and the Pioneer Shrub Ludwigia nervosa in Degraded Area Suggests an Exotic Bee as Its Major Pollinator

Author:
Ferreira, Eliana Aparecida; Boff, Samuel; Verza, Sandra S.; Mussury, Rosilda Mara
Source:
Biology 2021 v.10 no.2
ISSN:
2079-7737
Subject:
nectar,   etc   ; ; Ludwigia; cross pollination; dominant species; honey; open pollination; phenology; pollen; reproductive success; shrubs;     Show all 11 Subjects
Abstract:
... The flowers of plants of the genus Ludwigia are an important source of food for several species of bees. In the current study, we conducted an experiment with the aim to describe the reproductive biology and phenology of L. nervosa; to identify the species of visiting bees; analyze the foraging behavior of bees; and to investigate whether the reproductive success of the species is related to the f ...
DOI:
10.3390/biology10020114

58. Pollination by Non-Apis Bees and Potential Benefits in Self-Pollinating Crops

Author:
Esquivel, Isaac L.; Parys, Katherine A.; Brewer, Michael J.
Source:
Annals of the Entomological Society of America 2021 v.114 no.2 pp. 257-266
ISSN:
0013-8746
Subject:
nectar,   etc   ; Anthophila; Apis; canola; cotton; cross pollination; habitats; honey; natural history; pollen; self-pollination; soybeans;     Show all 12 Subjects
Abstract:
... The diversity and abundance of native bees (Hymenoptera: Anthophila) are important in providing pollination services to a diverse array of crops. An extensive literature base is available on the contributions of bees as crop pollinators. The focus of the majority of these studies are on honey bees (Apis spp.) pollinating crops that depend on cross-pollination to produce a yield. Self-pollinating c ...
DOI:
10.1093/aesa/saaa059

59. Climate seasonality drives ant–plant–herbivore interactions via plant phenology in an extrafloral nectary‐bearing plant community

Author:
Calixto, Eduardo Soares; Novaes, Letícia Rodrigues; dos Santos, Danilo Ferreira Borges; Lange, Denise; Moreira, Xoaquín; Del‐Claro, Kleber
Source:
Thejournal of ecology 2021 v.109 no.2 pp. 639-651
ISSN:
0022-0477
Subject:
nectar,   etc   ; Neotropics; cerrado; climate; herbivores; mutualism; phenology; plant communities; rain; temperature; wet season;     Show all 11 Subjects
Abstract:
... Interactions between ants and plants bearing extrafloral nectaries (EFNs) are among the most common mutualisms in Neotropical regions. Plants secrete extrafloral nectar, a carbohydrate‐rich food that attracts ants, which in return protect plants against herbivores. This ant–plant mutualism is subjected to temporal variation, in which abiotic factors can drive the establishment and frequency of suc ...
DOI:
10.1111/1365-2745.13492

60. Effect of stevia and pectin supplementation on physicochemical properties, preservation and in‐vivo hypoglycemic potential of orange nectar

Author:
Nabi, Ikram; Megateli, Ismaïn; Nait Bachir, Yacine; Djellouli, Salim; Hadj‐Ziane‐Zafour, Amel
Source:
Journal of food processing and preservation 2021 v.45 no.2 pp. e15124
ISSN:
0145-8892
Subject:
nectar,   etc   ; Stevia; antioxidant activity; blood glucose; glycemic effect; half life; pH; pectins; titratable acidity; turbidity;     Show all 10 Subjects
Abstract:
... This work aims to optimize a new formulation of orange nectar sweetened with Stevia and enriched with Pectin using full factorial design with two factors, two levels, and one central point. Factors were the concentration in stevia and pectin. Physicochemical characterization and stability study were carried‐out at 4 and 25°C where pH, Brix°, total titratable acidity, turbidity, sedimentation, and ...
DOI:
10.1111/jfpp.15124