You searched for:
Journal name
Annals of botany
Remove constraint Journal name: Annals of botany
Publication year rev
7991-2009
Remove constraint Publication year rev: 7991-2009
Source
2009 v.103 no.9
Remove constraint Source: 2009 v.103 no.9
PubAg
Main content area
Limit your search
Search
22 Search Results
« Previous |
1 - 20 of 22
|
Next »
Search Results
- Author:
- Muchhala, Nathan; Caiza, Angelica; Vizuete, Juan Carlos; Thomson, James D.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1481-1487
- ISSN:
- 0305-7364
- Subject:
- pollination; flowering; moths; Aphelandra; pollinators; phenology; tropical forests; tropics; Chiroptera; dehiscence; grains; hummingbirds; pollen; habitats
- Abstract:
- ... BACKGROUND AND AIMS: A number of different types of flower-visiting animals coexist in any given habitat. What evolutionary and ecological factors influence the subset of these that a given plant relies on for its pollination? Addressing this question requires a mechanistic understanding of the importance of different potential pollinators in terms of visitation rate (pollinator 'quantity') and ef ...
- DOI:
- 10.1093/aob/mcn260
- PubMed:
- 19131378
- PubMed Central:
- PMC2701763
- https://doi.org/10.1093/aob/mcn260
- Author:
- Ollerton, Jeff; Alarcón, Ruben; Waser, Nickolas M.; Price, Mary V.; Watts, Stella; Cranmer, Louise; Hingston, Andrew; Peter, Craig I.; Rotenberry, John
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1471-1480
- ISSN:
- 0305-7364
- Subject:
- functional diversity; pollination; covariance; phenotype; animals; pollinators; pollen
- Abstract:
- ... BACKGROUND AND AIMS: 'Pollination syndromes' are suites of phenotypic traits hypothesized to reflect convergent adaptations of flowers for pollination by specific types of animals. They were first developed in the 1870s and honed during the mid 20th Century. In spite of this long history and their central role in organizing research on plant-pollinator interactions, the pollination syndromes have ...
- DOI:
- 10.1093/aob/mcp031
- PubMed:
- 19218577
- PubMed Central:
- PMC2701765
- https://doi.org/10.1093/aob/mcp031
- Author:
- Mitchell, Randall J.; Irwin, Rebecca E.; Flanagan, Rebecca J.; Karron, Jeffrey D.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1355-1363
- ISSN:
- 0305-7364
- Subject:
- ecology; evolution; interdisciplinary research; landscapes; mathematical models; mating systems; pollen; pollination; pollinators
- Abstract:
- ... BACKGROUND: Some of the most exciting advances in pollination biology have resulted from interdisciplinary research combining ecological and evolutionary perspectives. For example, these two approaches have been essential for understanding the functional ecology of floral traits, the dynamics of pollen transport, competition for pollinator services, and patterns of specialization and generalizatio ...
- DOI:
- 10.1093/aob/mcp122
- PubMed:
- 19482881
- PubMed Central:
- PMC2701755
- https://doi.org/10.1093/aob/mcp122
- Author:
- Ollerton, Jeff; Masinde, Siro; Meve, Ulrich; Picker, Mike; Whittington, Andrew
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1501-1514
- ISSN:
- 0305-7364
- Subject:
- Araceae; Aristolochiaceae; Ceropegia; Diptera; center of diversity; females; flowers; oviposition sites; phylogeny; phylogeography; pollination; pollinators; species diversity
- Abstract:
- ... BACKGROUND AND AIMS: Ceropegia (Apocynaceae subfamily Asclepiadoideae) is a large, Old World genus of >180 species, all of which possess distinctive flask-shaped flowers that temporarily trap pollinators. The taxonomic diversity of pollinators, biogeographic and phylogenetic patterns of pollinator exploitation, and the level of specificity of interactions were assessed in order to begin to underst ...
- DOI:
- 10.1093/aob/mcp072
- PubMed:
- 19339298
- PubMed Central:
- PMC2701756
- https://doi.org/10.1093/aob/mcp072
- Author:
- Lonsdorf, Eric; Kremen, Claire; Ricketts, Taylor; Winfree, Rachael; Williams, Neal; Greenleaf, Sarah
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1589-1600
- ISSN:
- 0305-7364
- Subject:
- Apoidea; Helianthus annuus; animals; coffee beans; crops; ecosystem services; farms; habitats; issues and policy; landscapes; mechanistic models; nesting; pollination; pollinators; prediction; variance; watermelons; California; Costa Rica
- Abstract:
- ... BACKGROUND AND AIMS: Crop pollination by bees and other animals is an essential ecosystem service. Ensuring the maintenance of the service requires a full understanding of the contributions of landscape elements to pollinator populations and crop pollination. Here, the first quantitative model that predicts pollinator abundance on a landscape is described and tested. METHODS: Using information on ...
- DOI:
- 10.1093/aob/mcp069
- PubMed:
- 19324897
- PubMed Central:
- PMC2701767
- https://doi.org/10.1093/aob/mcp069
- Author:
- Karron, Jeffrey D.; Holmquist, Karsten G.; Flanagan, Rebecca J.; Mitchell, Randall J.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1379-1383
- ISSN:
- 0305-7364
- Subject:
- Mimulus; flowering; fruits; genetic heterogeneity; genetic markers; inbreeding depression; mating systems; paternity; pollen; pollinators; progeny; seedlings; selfing
- Abstract:
- ... BACKGROUND AND AIMS: Adjacent flowers on Mimulus ringens floral displays often vary markedly in selfing rate. We hypothesized that this fine-scale variation in mating system reflects the tendency of bumble-bee pollinators to probe several flowers consecutively on multiflower displays. When a pollinator approaches a display, the first flower probed is likely to receive substantial outcross pollen. ...
- DOI:
- 10.1093/aob/mcp030
- PubMed:
- 19218584
- PubMed Central:
- PMC2701766
- https://doi.org/10.1093/aob/mcp030
- Author:
- Armbruster, W. Scott; Hansen, Thomas F.; Pélabon, Christophe; Pérez-Barrales, Rocío; Maad, Johanne
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1529-1545
- ISSN:
- 0305-7364
- Subject:
- dichogamy; flowering; phenotype; pollinators; variance; biologists; stigma; genotype; phenotypic variation; pollen; self-pollination
- Abstract:
- ... BACKGROUND AND AIMS: From Darwin's time onward, biologists have thought about adaptation as evolution toward optimal trait values, but they have not usually assessed the relative importance of the distinct causes of deviations from optima. This problem is investigated here by measuring adaptive inaccuracy (phenotypic deviation from the optimum), using flower pollination as an adaptive system. METH ...
- DOI:
- 10.1093/aob/mcp095
- PubMed:
- 19429671
- PubMed Central:
- PMC2701747
- https://doi.org/10.1093/aob/mcp095
- Author:
- Whelan, Robert J.; Ayre, David J.; Beynon, Fiona M.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1395-1401
- ISSN:
- 0305-7364
- Subject:
- Apoidea; Grevillea; birds; forage; honey bees; mating behavior; mating systems; outcrossing; perennials; pollen; pollinating insects; pollination; shrubs; social insects; stigma
- Abstract:
- ... BACKGROUND AND AIMS: In Australia, honey-bees have invaded systems that evolved without social insect pollinators, where many plants are adapted to vertebrate pollination. Behavioural differences between pollinators are likely to influence mating patterns, but few studies have examined this empirically in long-lived, woody, perennials. It was shown previously that outcrossing rates in Grevillea ma ...
- DOI:
- 10.1093/aob/mcp091
- PubMed:
- 19403627
- PubMed Central:
- PMC2701754
- https://doi.org/10.1093/aob/mcp091
- Author:
- Schlumpberger, Boris O.; Cocucci, Andrea A.; Moré, Marcela; Sérsic, Alicia N.; Raguso, Robert A.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1489-1500
- ISSN:
- 0305-7364
- Subject:
- Apoidea; Echinopsis; cacti and succulents; flowering; geographical variation; horticultural exhibitions; nectar; nectar secretion; pollen; pollination; pollinators; population distribution; solitary bees; stigma; sugars; Andes region
- Abstract:
- ... BACKGROUND AND AIMS: A South American cactus species, Echinopsis ancistrophora (Cactaceae), with dramatic among-population variation in floral traits is presented. METHODS: Eleven populations of E. ancistrophora were studied in their habitats in northern Argentina, and comparisons were made of relevant floral traits such as depth, stigma position, nectar volume and sugar concentration, and anthesi ...
- DOI:
- 10.1093/aob/mcp075
- PubMed:
- 19342397
- PubMed Central:
- PMC2701769
- https://doi.org/10.1093/aob/mcp075
- Author:
- Kameyama, Yoshiaki; Kudo, Gaku
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1385-1394
- ISSN:
- 0305-7364
- Subject:
- Phyllodoce; alpine plants; flowering; genetic techniques and protocols; hybridization; inbreeding depression; mating systems; outcrossing; pollen; pollinators; seed set; seeds; selfing; shrubs; temporal variation
- Abstract:
- ... BACKGROUND AND AIMS: Because of differences in snowmelt time, the reproductive phenologies of alpine plants are highly variable among local populations, and there is large variation in seed set across populations. Temporal variation in pollinator availability during the season may be a major factor affecting not only seed production but also outcrossing rate of alpine plants. METHODS: Among local ...
- DOI:
- 10.1093/aob/mcp037
- PubMed:
- 19228703
- PubMed Central:
- PMC2701752
- https://doi.org/10.1093/aob/mcp037
11. How much does agriculture depend on pollinators? Lessons from long-term trends in crop production
- Author:
- Aizen, Marcelo A.; Garibaldi, Lucas A.; Cunningham, Saul A.; Klein, Alexandra M.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1579-1588
- ISSN:
- 0305-7364
- Subject:
- Food and Agriculture Organization; agricultural land; crop yield; crops; global change; pollinating insects; pollination
- Abstract:
- ... BACKGROUND AND AIMS: Productivity of many crops benefits from the presence of pollinating insects, so a decline in pollinator abundance should compromise global agricultural production. Motivated by the lack of accurate estimates of the size of this threat, we quantified the effect of total loss of pollinators on global agricultural production and crop production diversity. The change in pollinato ...
- DOI:
- 10.1093/aob/mcp076
- PubMed:
- 19339297
- PubMed Central:
- PMC2701761
- https://doi.org/10.1093/aob/mcp076
- Author:
- Mitchell, Randall J.; Flanagan, Rebecca J.; Brown, Beverly J.; Waser, Nickolas M.; Karron, Jeffrey D.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1403-1413
- ISSN:
- 0305-7364
- Subject:
- climate change; ecologists; history; introduced species; mating systems; models; mutualism; pollen; pollination; pollinators
- Abstract:
- ... BACKGROUND: Co-flowering plant species frequently share pollinators. Pollinator sharing is often detrimental to one or more of these species, leading to competition for pollination. Perhaps because it offers an intriguing juxtaposition of ecological opposites - mutualism and competition - within one relatively tractable system, competition for pollination has captured the interest of ecologists fo ...
- DOI:
- 10.1093/aob/mcp062
- PubMed:
- 19304814
- PubMed Central:
- PMC2701753
- https://doi.org/10.1093/aob/mcp062
- Author:
- Brunet, Johanne
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1567-1578
- ISSN:
- 0305-7364
- Subject:
- Aquilegia coerulea; Bombus; Hyles lineata; Sphinx; altitude; calyx; color; nectar; pollen; pollinators; population size; temporal variation; Rocky Mountain region
- Abstract:
- ... BACKGROUND AND AIMS: Pollinators together with other biotic and some abiotic factors can select for floral traits. However, variation in pollinator abundance over time and space can weaken such selection. In the present study, the variation in pollinator abundance over time and space was examined in populations of the Rocky Mountain columbine. The variation in three floral traits is described and ...
- DOI:
- 10.1093/aob/mcp096
- PubMed:
- 19414518
- PubMed Central:
- PMC2701757
- https://doi.org/10.1093/aob/mcp096
- Author:
- Irwin, Rebecca E.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1425-1433
- ISSN:
- 0305-7364
- Subject:
- Apoidea; Ipomopsis aggregata; herbivores; nectar; nectar robbing; pathogens; pollen; pollination; pollinators; seeds
- Abstract:
- ... BACKGROUND AND AIMS: Although the ecological and evolutionary consequences of foliar herbivory are well understood, how plants cope with floral damage is less well explored. Here the concept of tolerance, typically studied within the context of plant defence to foliar herbivores and pathogens, is extended to floral damage. Variation in tolerance to floral damage is examined, together with some of ...
- DOI:
- 10.1093/aob/mcp056
- PubMed:
- 19304813
- PubMed Central:
- PMC2701760
- https://doi.org/10.1093/aob/mcp056
- Author:
- Bronstein, Judith L.; Huxman, Travis; Horvath, Brianna; Farabee, Michael; Davidowitz, Goggy
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1435-1443
- ISSN:
- 0305-7364
- Subject:
- Datura wrightii; pollination; Agave; moths; nectar; Manduca sexta; pollinators; breeding; fruit set; pollen; stigma; grains; mutualism; larvae; eggs; prediction
- Abstract:
- ... BACKGROUND AND AIMS: A deeper understanding of mutualism can be reached by studying systems with measurable costs and benefits. Most studies of this type focus on an unusual class of obligate, species-specific pollination mutualisms. The interaction between Datura wrightii (Solanaceae) and the hawkmoth Manduca sexta offers similar advantages but greater generality. Adult moths both nectar at and d ...
- DOI:
- 10.1093/aob/mcp053
- PubMed:
- 19287014
- PubMed Central:
- PMC2701751
- https://doi.org/10.1093/aob/mcp053
- Author:
- Stang, Martina; Klinkhamer, Peter G.L.; Waser, Nickolas M.; Stang, Ingo; van der Meijden, Eddy
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1459-1469
- ISSN:
- 0305-7364
- Subject:
- nectar secretion; probability distribution; proboscis; nectar; pollinators; models; flowers; biogeography
- Abstract:
- ... BACKGROUND AND AIMS: Many recent studies show that plant-pollinator interaction webs exhibit consistent structural features such as long-tailed distributions of the degree of generalization, nestedness of interactions and asymmetric interaction dependencies. Recognition of these shared features has led to a variety of mechanistic attempts at explanation. Here it is hypothesized that beside size th ...
- DOI:
- 10.1093/aob/mcp027
- PubMed:
- 19228701
- PubMed Central:
- PMC2701768
- https://doi.org/10.1093/aob/mcp027
- Author:
- Conner, Jeffrey K.; Sahli, Heather F.; Karoly, Keith
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1547-1556
- ISSN:
- 0305-7364
- Subject:
- fauna; dimorphism; weight-of-evidence; corolla; radishes; variance; Apoidea; genetic techniques and protocols; natural selection; pollen; artificial selection; Raphanus raphanistrum
- Abstract:
- ... BACKGROUND: There are a number of difficulties associated with the study of adaptation. One is a lack of variation in the trait, which is common in adaptations because past selection has removed unfit variants. This lack of variation makes it difficult to determine the relationship between trait variation and fitness. Another difficulty is proving causation in this trait-fitness relationship, beca ...
- DOI:
- 10.1093/aob/mcp071
- PubMed:
- 19324895
- PubMed Central:
- PMC2701762
- https://doi.org/10.1093/aob/mcp071
- Author:
- Ohashi, Kazuharu; Thomson, James D.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1365-1378
- ISSN:
- 0305-7364
- Subject:
- automated feeders; economics; foraging; genetic variation; hummingbirds; inbreeding depression; nectar; ontogeny; pollen; pollen flow; pollinators; self-pollination; simulation models
- Abstract:
- ... BACKGROUND: Trapline foraging (repeated sequential visits to a series of feeding locations) has been often observed in pollinators collecting nectar or pollen from flowers. Although field studies on bumble-bees and hummingbirds have clarified fundamental aspects of this behaviour, trapline foraging still poses several difficult questions from the perspectives of both animals and plants. These ques ...
- DOI:
- 10.1093/aob/mcp088
- PubMed:
- 19398446
- PubMed Central:
- PMC2701764
- https://doi.org/10.1093/aob/mcp088
- Author:
- Vázquez, Diego P.; Blüthgen, Nico; Cagnolo, Luciano; Chacoff, Natacha P.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1445-1457
- ISSN:
- 0305-7364
- Subject:
- biologists; ecologists; mutualism; researchers
- Abstract:
- ... BACKGROUND: Ecologists and evolutionary biologists are becoming increasingly interested in networks as a framework to study plant-animal mutualisms within their ecological context. Although such focus on networks has brought about important insights into the structure of these interactions, relatively little is still known about the mechanisms behind these patterns. SCOPE: The aim in this paper is ...
- DOI:
- 10.1093/aob/mcp057
- PubMed:
- 19304996
- PubMed Central:
- PMC2701748
- https://doi.org/10.1093/aob/mcp057
- Author:
- Campbell, Diane R.
- Source:
- Annals of botany 2009 v.103 no.9 pp. 1557-1566
- ISSN:
- 0305-7364
- Subject:
- alpine plants; experimental design; flowers; pollinators; selection methods; Colorado; New Zealand
- Abstract:
- ... BACKGROUND: A basic theme in the study of plant-pollinator interactions is that pollinators select not just for single floral traits, but for associations of traits. Responses of pollinators to sets of traits are inherent in the idea of pollinator syndromes. In its most extreme form, selection on a suite of traits can take the form of correlational selection, in which a response to one trait depen ...
- DOI:
- 10.1093/aob/mcp032
- PubMed:
- 19218579
- PubMed Central:
- PMC2701750
- https://doi.org/10.1093/aob/mcp032