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Ecology Letters
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#1Robert A. Raguso (Cornell University)H-Index: 44
#2Lawrence D. Harder (U of C: University of Calgary)H-Index: 48
Last. Steven D. Johnson (UKZN: University of KwaZulu-Natal)H-Index: 59
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A recent claim that evening primrose flowers adaptively secrete nectar in response to vibrations from hovering bees lacks supporting evidence. The authors fail to demonstrate that bees can access the concealed nectar and that their visits enhance plant fitness. Reanalysis of the authors' data raises additional concerns about their conclusions.
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#1Marine Veits (TAU: Tel Aviv University)H-Index: 2
#2Itzhak Khait (TAU: Tel Aviv University)H-Index: 3
Last. Lilach Hadany (TAU: Tel Aviv University)H-Index: 20
view all 7 authors...
In Veits et al., we showed that flowers respond to a range of pollinator sounds by increased nectar sugar concentration. Here we clarify that (1) our argument is relevant to most pollinators, and not limited to bees (2) specifically, bees do access Oenothera Drumondii nectar in this area.
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#1Aya Goldshtein (TAU: Tel Aviv University)H-Index: 4
#2Marine Veits (TAU: Tel Aviv University)H-Index: 2
Last. Lilach Hadany (TAU: Tel Aviv University)H-Index: 20
view all 7 authors...
Ecol. Lett. 22, 2019, 1483 demonstrated, for the first time, a rapid response of a plant to the airborne sounds of pollinators. Pyke et al. argue that this response is unlikely to be adaptive. Here we clarify some misunderstandings, and demonstrate the potential adaptive value using theoretical modelling and field observations.
Source
#1Graham H. Pyke (CAS: Chinese Academy of Sciences)
#2Zong-Xin Ren (CAS: Chinese Academy of Sciences)H-Index: 7
Last. Hong Wang (CAS: Chinese Academy of Sciences)H-Index: 18
view all 5 authors...
Under noiseless experimental conditions, sugar concentration of secreted floral nectar may increase after flower exposure to nearby sounds of pollinator flight (Veits et al. 2019). However, we reject the argument that this represents adaptive plant behaviour, and consider that the appealing analogy between a flower and human ear is unjustified.
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#1Emma Ladouceur (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 4
#2William Stanley Harpole (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 40
Last. Jonathan M. Chase (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 53
view all 7 authors...
Seed dispersal limitation, which can be exacerbated by a number of anthropogenic causes, can result in local communities having fewer species than they might potentially support, representing a potential diversity deficit. The link between processes that shape natural variation in diversity, such as dispersal limitation, and the consequent effects on productivity is less well known. Here, we synthesised data from 12 seed addition experiments in grassland communities to examine the influence of r...
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#1Víctor Arroyo-Rodríguez (UNAM: National Autonomous University of Mexico)H-Index: 34
#2Lenore Fahrig (Carleton University)H-Index: 76
Last. Felipe P. L. Melo (UFPE: Federal University of Pernambuco)H-Index: 22
view all 22 authors...
Agriculture and development transform forest ecosystems to human-modified landscapes. Decades of research in ecology have generated myriad concepts for the appropriate management of these landscapes. Yet, these concepts are often contradictory and apply at different spatial scales, making the design of biodiversity-friendly landscapes challenging. Here, we combine concepts with empirical support to design optimal landscape scenarios for forest-dwelling species. The supported concepts indicate th...
1 CitationsSource
#1Phoebe D. Edwards (U of T: University of Toronto)H-Index: 2
#2Nicholas Sookhan (U of T: University of Toronto)H-Index: 2
Last. Rudy Boonstra (U of T: University of Toronto)H-Index: 53
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Vertebrates have high species-level variation in circulating hormone concentrations, and the functional significance of this variation is largely unknown. We tested the hypothesis that interspecific differences in hormone concentrations are partially driven by plant consumption, based on the prediction that herbivores should have higher basal hormone levels to 'outcompete' plant endocrine disruptors. We compared levels of glucocorticoids (GCs), the hormones with the most available data, across 1...
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#1Flora Aubree (CNRS: Centre national de la recherche scientifique)H-Index: 1
#2Patrice David (University of Montpellier)H-Index: 42
Last. Vincent Calcagno (CNRS: Centre national de la recherche scientifique)H-Index: 16
view all 6 authors...
Evidence is growing that evolutionary dynamics can impact biodiversity-ecosystem functioning (BEF) relationships. However the nature of such impacts remains poorly understood. Here we use a modelling approach to compare random communities, with no trait evolutionary fine-tuning, and co-adapted communities, where traits have co-evolved, in terms of emerging biodiversity-productivity, biodiversity-stability and biodiversity-invasion relationships. Community adaptation impacted most BEF relationshi...
1 CitationsSource
#1Tanya L. RogersH-Index: 3
#2Stephan B. MunchH-Index: 31
Last. Celia C. Symons (UCSC: University of California, Santa Cruz)H-Index: 7
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Experiments have revealed much about top-down and bottom-up control in ecosystems, but manipulative experiments are limited in spatial and temporal scale. To obtain a more nuanced understanding of trophic control over large scales, we explored long-term time-series data from 13 globally distributed lakes and used empirical dynamic modelling to quantify interaction strengths between zooplankton and phytoplankton over time within and across lakes. Across all lakes, top-down effects were associated...
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#1Seraina L. Cappelli (University of Bern)H-Index: 1
#2Noémie A. Pichon (University of Bern)H-Index: 1
Last. Eric Allan (University of Bern)H-Index: 25
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Aboveground fungal pathogens can substantially reduce biomass production in grasslands. However, we lack a mechanistic understanding of the drivers of fungal pathogen infection and impact. Using a grassland global change and biodiversity experiment we show that the trade-off between plant growth and defense is the main determinant of infection incidence. In contrast, nitrogen addition only indirectly increased incidence via shifting plant communities towards faster growing species. Plant diversi...
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