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39 results for “plant-pollinator communities”
Figure 2 in Community-level plant-pollinator interactions in a Palaeotropical montane evergreen oak forest ecosystem
Figure 2. Seasonal changes in monthly temperature (averages of monthly maximum, mean and minimum) and rainfall at Xam Neua near S4.
Figure 6 in Community-level plant-pollinator interactions in a Palaeotropical montane evergreen oak forest ecosystem
Figure 6. Flowers visited by honeybees: A. laboriosa (a–c), A. dorsata (d–f), Apis cerana (g–k) and A. florea (l). (a) Castanopsis diversifolia; (b) Castanopsis diversifolia; (c) Rubus multibracteatus; (d) Stachytarpheta jamaicensis; (E) Symplocos ramosissima; (f) Pogostemon nelsonii; (g) Ageratum houstonianum; (h) Photinia prunifolia; (i) Rubus obcordatus; (j) Bidens pilosa var. radiata; (k) Ixeris gracilis; (l) Photinia prunifolia.
Figure 3 in Community-level plant-pollinator interactions in a Palaeotropical montane evergreen oak forest ecosystem
Figure 3. Landscapes of the study sites S1–S5. (a) a meadow at S1; (b) paddy fields and secondary deciduous forests at S2; (c) a subtropical evergreen forest at S3; (d) a landscape at S4; (e) a valley inhabited by several Impatiens species at S4; (f) an evergreen oak forest near the summit of a mountain at S4; (g) a riverine forest inhabited by Mytilaria laosensis at S4; (h) limestone hills at S5.
Figure 11 in Community-level plant-pollinator interactions in a Palaeotropical montane evergreen oak forest ecosystem
Figure 11. Flowers visited by lepidopterans. (a) Isodon glaucocalyx visited by papilionid butterfly Papilio polytes; (b) Barleria cristata visited by a papilionid butterfly Papilio protenor; (c) Mussaenda cambodiana visited by a papilionid butterfly Troides helena; (d) Baliospermum montanum visited by a lycaenid butterfly Heliophorus epicles; (e) Lindera tonkinensis visited by a lycaenid butterfly Pithecos corbus; (f) Blumea martiniana visited by a nymphalid butterfly Zemeros flegyas; (g) Lindera tonkinensis visited by a nymphalid butterfly Yptima confusa; (h) Impatiens violaeflora visited by a hesperiid butterfly Onryza siamica; (i) Pottsia laxiflora visited by a pierid butterfly Appias albina; (j) Swertia aungustifolia visited by an arctiid moth and a hovering blue-banded Amegilla bee; (k) Ligustrum indicum visited by an arctiid moth.
Figure 16 in Community-level plant-pollinator interactions in a Palaeotropical montane evergreen oak forest ecosystem
Figure 16. The observed plant–pollinator network between flowers and eight groups of long-tongued bees. See Table 2 for plant species codes.
Figure 15 in Community-level plant-pollinator interactions in a Palaeotropical montane evergreen oak forest ecosystem
Figure 15. Flowers of eight observed Impatiens species (Bal1–Bal8): (a) I. chinensis; (b) I. commellinoides; (c) I. ernestii; (d) I. longiloba; (e) I. mengtszeana; (f) I. rubricolor; (g) I. tigrina; (h) I. violaeflora.
Figure 18 in Community-level plant-pollinator interactions in a Palaeotropical montane evergreen oak forest ecosystem
Figure 18. Comparison of pollination systems among climatic and geographical regions: subalpine forests and meadows at Mt. Kushigata, central Japan (Kato 2000; Kato et al. 1993b), cool temperate deciduous forests at Ashu (Kato et al. 1990), warm temperate evergreen forest ecosystem at Amami Island (Kato 2000), montane evergreen forests in Laos (this paper), tropical monsoon forest ecosystem at lowland Laos (Kato et al. 2008), Bornean tropical rain forests at Lambir Hills National Park in Malaysia (Momose et al. 1998), and a Neotropical rain forest at La Selva (Kress and Beach 1994). The asterisk denotes large bees including long-tongued bees and carpenter bees.
Data from: Spatial variability in a plant-pollinator community across a continuous habitat: high heterogeneity in the face of apparent uniformity
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Data from: Constructing more informative plant-pollinator networks: visitation and pollen deposition networks in a heathland plant community
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Data from: Floral volatiles structure plant-pollinator interactions in a diverse community across the growing season
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Data from: Influence of plant-pollinator interactions on the assembly of plant and hummingbird communities
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Biotic and abiotic drivers of plant-pollinator community assembly across wildfire gradients
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Data from: Dominant bee species and floral abundance drive parasite temporal dynamics in plant-pollinator communities
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When cheating turns into a stabilizing mechanism of plant-pollinator communities
<p>This repository is a complete update to the one linked to our preprint (https://zenodo.org/records/8272889). It includes:</p><ul><li>R codes to reproduce simulations, empirical analyses and figures</li><li>results of theoretical simulations (data_for_analyses.txt in simulations_results)</li><li>empirical data to reproduce analyses (traits_data.csv<i> & </i>empirical_data.csv in empirical<i>_</i>data folder)</li><li>results of simulations calibrated by empirical networks (equilibriums_analyse_empir.txt in simulations_results)</li><li>results of simulations for randomized empirical cheating patterns (equilibriums_analyse_empir_null.txt in simulations_results)</li></ul><p>R (v. 4.3.0) codes are also available here: <a href="https://github.com/f-duchenne/Cheating_in_mutualistic_networks">https://github.com/f-duchenne/Cheating_in_mutualistic_networks</a></p>
Portfolio effect and asynchrony as drivers of stability in plant-pollinator communities along a gradient of landscape heterogeneity
<p>Understanding how pollination services can be maintained in increasingly anthropogenic landscapes is a current challenge for basic and applied ecology. The stability of plant-pollinator communities might increase in heterogeneous landscapes with a high diversity of species and alternative habitats, both through increased portfolio effect (property of communities to fluctuate less than the sum of its counterparts) and decreased synchrony (coincident changes in species abundance). However, how these drivers of stability (portfolio effect and synchrony) vary along land-use gradients remains largely unknown. Using independent samplings for plants, pollinators, and their interactions in Mediterranean communities along a gradient of landscape heterogeneity, we assessed the relationships between within-year stability and its drivers; and between the drivers of stability, landscape heterogeneity, and species diversity. Besides, we evaluated the relationships between the drivers of interaction stability and the structure of mutualistic networks (modularity, nestedness, connectance). Stability increased with larger portfolio effects and asynchronies. Interaction stability was positively related to pollinator stability, but not to plant stability. Landscape evenness increased the stability of plants, pollinators, and their interactions, through increased portfolio effects. However, for plants and pollinators, the landscape effect was detected at a smaller scale (1-km) than for interactions (2-km); and for pollinators and interactions, the effect was only evident from medium-to-high levels of landscape evenness. Temporal synchrony of species/pairwise interactions was an important driver of stability, tightly linked to species/interaction diversity. More asynchronous communities showed a larger portfolio effect and were also those with higher species evenness for all plants, pollinators, and their interactions; while synchrony was also weakly positively related to species richness for plants. Interestingly, more modular network structures conferred enhanced overall community stability, through higher portfolio effect and asynchrony. Preserving diverse communities within the heterogeneous Mediterranean landscapes helps maintain the stability of pollination services, both through increased asynchrony and portfolio effect.</p>
Figure 1 in Community-level plant-pollinator interactions in a Palaeotropical montane evergreen oak forest ecosystem
Figure 1. Map of study sites S1–S5 in Laos. See Table 1 for details of the sites.
Pollen transport networks reveal highly diverse and temporally stable plant-pollinator interactions in an Appalachian floral community
<p>Floral visitation alone has been typically used to characterize plant-pollinator interaction networks even though it ignores differences in the quality of floral visits (e.g. transport of pollen) and thus may overestimate the number and functional importance of pollinating interactions. However, how network structural properties differ between floral visitation and pollen transport networks is not well understood. Furthermore, the strength and frequency of plant-pollinator interactions may vary across fine temporal scales (within a single season) further limiting our predictive understanding of the drivers and consequences of plant-pollinator network structure. Thus, evaluating the structure of pollen transport networks and how they change within a flowering season may help increase our predictive understanding of the ecological consequences of plant-pollinator network structure. Here we compare plant-pollinator network structure using floral visitation and pollen transport data and evaluate within-season variation in pollen transport network structure in a diverse plant-pollinator community. Our results show that pollen transport networks provide a more accurate representation of the diversity of plant-pollinator interactions in a community but that floral visitation and pollen transport networks do not differ in overall network structure. Pollen transport network structure was relatively stable throughout the flowering season despite changes in plan and pollinator species composition. Overall, our study highlights the need to improve our understanding of the drivers of plant-pollinator network structure in order to more fully understand the process that govern the assembly of these interactions in nature.</p>
Pollen transport networks reveal highly diverse and temporally stable plant-pollinator interactions in an Appalachian floral community
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Portfolio effect and asynchrony as drivers of stability in plant-pollinator communities along a gradient of landscape heterogeneity
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