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  • 1
    Online Resource
    Online Resource
    Declining fruit production before death in a widely distributed tree species, Sorbus aucuparia L.
    Springer Science and Business Media LLC ; 2019
    In:  Annals of Forest Science Vol. 76, No. 1 ( 2019-03)
    Details
    In: Annals of Forest Science, Springer Science and Business Media LLC, Vol. 76, No. 1 ( 2019-03)
    Type of Medium: Online Resource
    ISSN: 1286-4560 , 1297-966X
    URL: Article
    DOI: 10.1007/s13595-018-0791-x
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2019
    detail.hit.zdb_id: 2012340-1
    SSG: 23
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  • 2
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    Natural disturbances and masting: from mechanisms to fitness consequences
    The Royal Society ; 2021
    In:  Philosophical Transactions of the Royal Society B: Biological Sciences Vol. 376, No. 1839 ( 2021-12-06)
    Details
    In: Philosophical Transactions of the Royal Society B: Biological Sciences, The Royal Society, Vol. 376, No. 1839 ( 2021-12-06)
    Abstract: The timing of seed production and release is highly relevant for successful plant reproduction. Ecological disturbances, if synchronized with reproductive effort, can increase the chances of seeds and seedlings to germinate and establish. This can be especially true under variable and synchronous seed production (masting). Several observational studies have reported worldwide evidence for co-occurrence of disturbances and seed bumper crops in forests. Here, we review the evidence for interaction between disturbances and masting in global plant communities; we highlight feedbacks between these two ecological processes and posit an evolutionary pathway leading to the selection of traits that allow trees to synchronize seed crops with disturbances. Finally, we highlight relevant questions to be tested on the functional and evolutionary relationship between disturbances and masting. This article is part of the theme issue ‘The ecology and evolution of synchronized seed production in plants’.
    Type of Medium: Online Resource
    ISSN: 0962-8436 , 1471-2970
    URL: Article
    DOI: 10.1098/rstb.2020.0384
    RVK:
    WA 15000
    Language: English
    Publisher: The Royal Society
    Publication Date: 2021
    detail.hit.zdb_id: 1462620-2
    SSG: 12
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  • 3
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    Individual resource limitation combined with population‐wide pollen availability drives masting in the valley oak ( Quercus lobata )
    Wiley ; 2016
    In:  Journal of Ecology Vol. 104, No. 3 ( 2016-05), p. 637-645
    Details
    In: Journal of Ecology, Wiley, Vol. 104, No. 3 ( 2016-05), p. 637-645
    Abstract: Masting, the synchronized production of variable seed crops, is widespread among woody plants, but there is no consensus about the underlying proximate mechanisms. To understand this population‐level behaviour, it is necessary to dissect the behaviour of individual trees as well as the interactions that synchronize them. Here, we test a model of masting in which variability in seed set is driven by resource limitation within trees and synchrony is driven by pollen limitation due to phenological asynchrony in some years. We used a 35‐year seed set data set and a 12‐year phenological data set to analyse seed production of 84 valley oaks ( Quercus lobata ) in central coastal California. Individual trees varied tremendously in their seed production patterns; trees with high levels of seed production were less variable over time, but showed stronger negative autocorrelation between years, suggesting that they are more resource‐limited than unproductive trees. In years of more asynchronous flowering, Q. lobata produced fewer seeds, consistent with the importance of phenological synchrony. We parametrized a model with these results to investigate how individual resource limitation and population‐wide pollen limitation – a consequence of asynchronous flowering during cold spring temperatures – interact to shape annual variation in seed production. The model illustrates that this proximate abiotic driver can synchronize the behaviour of individuals, resulting in population‐wide seed production patterns that closely resemble the field data. Synthesis . Our findings support the hypothesis that an interaction between two proximate mechanisms, individual resource limitation and environmental variation affecting population‐wide pollen availability, drives masting in this population of Quercus lobata . This combination of internal and external proximate drivers may underlie masting behaviour in many wind‐pollinated plants.
    Type of Medium: Online Resource
    ISSN: 0022-0477 , 1365-2745
    URL: Issue
    URL: Article
    DOI: 10.1111/jec.2016.104.issue-3
    DOI: 10.1111/1365-2745.12554
    Language: English
    Publisher: Wiley
    Publication Date: 2016
    detail.hit.zdb_id: 3023-5
    detail.hit.zdb_id: 2004136-6
    SSG: 12
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  • 4
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    Investigating the relationship between climate, stand age, and temporal trends in masting behavior of European forest trees
    Wiley ; 2020
    In:  Global Change Biology Vol. 26, No. 3 ( 2020-03), p. 1654-1667
    Details
    In: Global Change Biology, Wiley, Vol. 26, No. 3 ( 2020-03), p. 1654-1667
    Abstract: Masting—temporally variable seed production with high spatial synchrony—is a pervasive strategy in wind‐pollinated trees that is hypothesized to be vulnerable to climate change due to its correlation with variability in abiotic conditions. Recent work suggests that aging may also have strong effects on seed production patterns of trees, but this potential confounding factor has not been considered in previous times series analysis of climate change effects. Using a 54 year dataset for seven dominant species in 17 forests across Poland, we used the proportion of seed‐producing trees (PST) to contrast the predictions of the climate change and aging hypotheses in Abies alba , Fagus sylvatica , Larix decidua , Picea abies , Pinus sylvestris , Quercus petraea , and Quercus robur . Our results show that in all species, PST increased over time and that this change correlated most strongly with stand age, while the standardized precipitation–evapotranspiration index, a measure of drought, contributed to temporal trends in PST of F. sylvatica and Q. robur . Temporal variability of PST also increased over time in all species except P. sylvestris , while trends in temporal autocorrelation and among‐stand synchrony reflect species‐specific masting strategies. Our results suggest a pivotal role of plant ontogeny in driving not only the extent but also variability and synchrony of reproduction in temperate forest trees. In a time of increasing forest regrowth in Europe, we therefore call for increased attention to demographic effects such as aging on plant reproductive behavior, particularly in studies examining global change effects using long‐term time series data.
    Type of Medium: Online Resource
    ISSN: 1354-1013 , 1365-2486
    URL: Issue
    URL: Article
    DOI: 10.1111/gcb.v26.3
    DOI: 10.1111/gcb.14945
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2020313-5
    SSG: 12
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  • 5
    Online Resource
    Online Resource
    Context-dependent post-dispersal predation of acorns in a California oak community
    Elsevier BV ; 2018
    In:  Acta Oecologica Vol. 92 ( 2018-10), p. 52-58
    Details
    In: Acta Oecologica, Elsevier BV, Vol. 92 ( 2018-10), p. 52-58
    Type of Medium: Online Resource
    ISSN: 1146-609X
    URL: Article
    DOI: 10.1016/j.actao.2018.08.005
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2018
    detail.hit.zdb_id: 2003658-9
    SSG: 12
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  • 6
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    Fire history and weather interact to determine extent and synchrony of mast-seeding in rhizomatous scrub oaks of Florida
    The Royal Society ; 2021
    In:  Philosophical Transactions of the Royal Society B: Biological Sciences Vol. 376, No. 1839 ( 2021-12-06)
    Details
    In: Philosophical Transactions of the Royal Society B: Biological Sciences, The Royal Society, Vol. 376, No. 1839 ( 2021-12-06)
    Abstract: In disturbance-prone ecosystems, fitness consequences of plant reproductive strategies are often determined by the relative timing of seed production and disturbance events, but the role of disturbances as proximate drivers of seed production has been overlooked. We use long-term data on seed production in Quercus chapmanii , Q. geminata and Q. inopina , rhizomatous oaks found in south central Florida's oak scrub, to investigate the role of fire history and its interaction with weather in shaping acorn production and its synchrony . Acorn production increased with the time since last fire, combined with additive or interactive effects of spring precipitation (+) or drought (–). Furthermore, multiple matrix regression models revealed that ramet pairs with shared fire history were more synchronous in seed production than ones that burned in different years. Long-term trends suggest that increasingly drier spring weather, in interaction with fire frequency, may drive a decline of seed production. Such declines could affect the community of acorn-reliant vertebrates in the Florida scrub, including endangered Florida scrub-jays ( Aphelocoma coerulescens ). These results illustrate that fire can function as a proximate driver of seed production in mast-seeding species, highlighting the increasingly recognized importance of interactions among reproductive strategies and disturbance regimes in structuring plant populations and communities. This article is part of the theme issue ‘The ecology and evolution of synchronized seed production in plants’.
    Type of Medium: Online Resource
    ISSN: 0962-8436 , 1471-2970
    URL: Article
    DOI: 10.1098/rstb.2020.0381
    RVK:
    WA 15000
    Language: English
    Publisher: The Royal Society
    Publication Date: 2021
    detail.hit.zdb_id: 1462620-2
    SSG: 12
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  • 7
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    Weather cues associated with masting behavior dampen the negative autocorrelation between past and current reproduction in oaks
    Wiley ; 2019
    In:  American Journal of Botany Vol. 106, No. 1 ( 2019-01), p. 51-60
    Details
    In: American Journal of Botany, Wiley, Vol. 106, No. 1 ( 2019-01), p. 51-60
    Abstract: The influence of weather conditions on masting and the ecological advantages of this reproductive behavior have been the subject of much interest. Weather conditions act as cues influencing reproduction of individual plants, and similar responses expressed across many individuals lead to population‐level synchrony in reproductive output. In turn, synchrony leads to benefits from economies of scale such as enhanced pollination success and seed predator satiation. However, there may also be individual‐level benefits from reproductive responses to weather cues, which may explain the origin of masting in the absence of economies of scale. In a previous study, we found support for a mechanism whereby individual responses to weather cues attenuate the negative autocorrelation between past and current annual seed production—a pattern typically attributed to resource limitation and reproductive tradeoffs among years. Methods Here we provide a follow‐up and more robust evaluation of this hypothesis in 12 species of oaks ( Quercus spp.), testing for a negative autocorrelation (tradeoff) between past and current reproduction and whether responses to weather cues associated with masting reduce the strength of this negative autocorrelation. Key Results Our results showed a strong negative autocorrelation for 11 of the species, and that species‐specific reproductive responses to weather cues dampened this negative autocorrelation in 10 of them. Conclusions This dampening effect presumably reflects a reduction in resource limitation or increased resource use associated with weather conditions, and suggests that responses to weather cues conferring these advantages should be selected for based on individual benefits.
    Type of Medium: Online Resource
    ISSN: 0002-9122 , 1537-2197
    URL: Issue
    URL: Article
    DOI: 10.1002/ajb2.2019.106.issue-1
    DOI: 10.1002/ajb2.1210
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2053581-8
    SSG: 12
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  • 8
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    Masting in wind‐pollinated trees: system‐specific roles of weather and pollination dynamics in driving seed production
    Wiley ; 2017
    In:  Ecology Vol. 98, No. 10 ( 2017-10), p. 2615-2625
    Details
    In: Ecology, Wiley, Vol. 98, No. 10 ( 2017-10), p. 2615-2625
    Abstract: Masting, the highly variable production of synchronized large seed crops, is a common reproductive strategy in plant populations. In wind‐pollinated trees, flowering and pollination dynamics are hypothesized to provide the mechanistic link for the well‐known relationship between weather and population‐level seed production. Several hypotheses make predictions about the effect of weather on annual pollination success. The pollen coupling hypothesis predicts that weather and plant resources drive the flowering effort of trees, which directly translates into the size of seed crops through efficient pollination. In contrast, the pollination Moran effect hypothesis predicts that weather affects pollination efficiency, leading to occasional bumper crops. Furthermore, the recently formulated phenology synchrony hypothesis predicts that Moran effects can arise because of weather effects on flowering synchrony, which, in turn, drives pollination efficiency. We investigated the relationship between weather, airborne pollen, and seed production in common European trees, two oak species ( Quercus petraea and Q. robur ) and beech ( Fagus sylvatica ) with a 19‐yr data set from three sites in Poland. Our results show that warm summers preceding flowering correlated with high pollen abundance and warm springs resulted in short pollen seasons (i.e., high flowering synchrony) for all three species. Pollen abundance was the best predictor for seed crops in beech, as predicted under pollen coupling. In oaks, short pollen seasons, rather than pollen abundance, correlated with large seed crops, providing support for the pollination Moran effect and phenology synchrony hypotheses. Fundamentally different mechanisms may therefore drive masting in species of the family Fagacae.
    Type of Medium: Online Resource
    ISSN: 0012-9658 , 1939-9170
    URL: Issue
    URL: Article
    DOI: 10.1002/ecy.2017.98.issue-10
    DOI: 10.1002/ecy.1951
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 1797-8
    detail.hit.zdb_id: 2010140-5
    SSG: 12
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  • 9
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    Pollen limitation and flower abortion in a wind-pollinated, masting tree
    Wiley ; 2015
    In:  Ecology Vol. 96, No. 2 ( 2015-02), p. 587-593
    Details
    In: Ecology, Wiley, Vol. 96, No. 2 ( 2015-02), p. 587-593
    Type of Medium: Online Resource
    ISSN: 0012-9658
    URL: Article
    URL: Article
    DOI: 10.1890/14-0297.1
    DOI: 10.1890/14-0297.1.sm
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 1797-8
    detail.hit.zdb_id: 2010140-5
    SSG: 12
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  • 10
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    Flowering synchrony drives reproductive success in a wind‐pollinated tree
    Wiley ; 2020
    In:  Ecology Letters Vol. 23, No. 12 ( 2020-12), p. 1820-1826
    Details
    In: Ecology Letters, Wiley, Vol. 23, No. 12 ( 2020-12), p. 1820-1826
    Abstract: Synchronised and quasi‐periodic production of seeds by plant populations, known as masting, is implicated in many ecological processes, but how it arises remains poorly understood. Flowering and pollination dynamics are hypothesised to provide the mechanistic link for the observed relationship between weather and population‐level seed production. We report the first experimental test of the phenological synchrony hypotheses as a driver of pollen limitation in mast seeding oaks ( Quercus ilex ). Higher flowering synchrony yielded greater pollination efficiency, which resulted in 2‐fold greater seed set in highly synchronised oaks compared to asynchronous individuals. Pollen addition removed the negative effect of asynchronous flowering on seed set. Because phenological synchrony operates through environmental variation, this result suggests that oak masting is synchronised by exogenous rather than endogenous factors. It also points to a mechanism by which changes in flowering phenology can affect plant reproduction of mast‐seeding plants, with subsequent implications for community dynamics.
    Type of Medium: Online Resource
    ISSN: 1461-023X , 1461-0248
    URL: Issue
    URL: Article
    DOI: 10.1111/ele.v23.12
    DOI: 10.1111/ele.13609
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2020195-3
    SSG: 12
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