Compensatory growth of the clonal understory tree, Asimina triloba, in response to small-scale disturbances

Hosaka, Naomi; Kachi, Naoki; Kudoh, Hiroshi; Stuefer, Josef F.; Whigham, Dennis F.

doi:10.1007/s11258-016-0592-y

Cited by 4 publications

(5 citation statements)

References 39 publications

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“…The extensive research on A. triloba ramet demography and growth by Hosaka et al . (2005, 2008, 2016) did not include stem length or leaf area measurements. Young (1985) quantified architectural variables not measured here, including branch dimensions, bifurcation ratios, leaf size/ mass relationships, and laminar orientations.…”

Section: Discussionmentioning

confidence: 99%

“…There are few published data on A. triloba architecture and no data on total ramet leaf area with which the results of this study can be compared. The extensive research on A. triloba ramet demography and growth by Hosaka et al (2005Hosaka et al ( , 2008Hosaka et al ( , 2016 did not include stem length or leaf area measurements. Young (1985) quantified architectural variables not measured here, including branch dimensions, bifurcation ratios, leaf size/ mass relationships, and laminar orientations.…”

Section: Discussion Ramet Architecture and Leafmentioning

confidence: 99%

“…2005), ramet demography, growth and clonal persistence (Hosaka et al . 2005, 2008), geographic variation in ramet size and reproduction (Lagrange and Tramer 1985), patch responses to ramet damage (Hosaka et al . 2016), herbivore impacts on patch condition after invasive shrub removal (Mercader et al .…”

mentioning

confidence: 99%

“…Asimina triloba L. Dunal (pawpaw) is a native deciduous understory shrub/small tree that establishes clonal patches in temperate forests across its broad range in the eastern USA. Published research on A. triloba biology and ecology other than arboriculture includes patch genotypic composition (Botkins et al 2012), pollination ecology (Willson and Schemske 1980), ecophysiology (Young 1985(Young , 1987Young and Yavitt 1987;Jacquart et al 1992;Nash and Graves 1993;Augspurger et al 2005), ramet demography, growth and clonal persistence (Hosaka et al 2005(Hosaka et al , 2008, geographic variation in ramet size and reproduction (Lagrange and Tramer 1985), patch responses to ramet damage (Hosaka et al 2016), herbivore impacts on patch condition after invasive shrub removal (Mercader et al 2020), twig biomechanics in relation to storm wind damage potential (Goodrich et al 2016), effects of chronic deer browsing on A. triloba abundance (McGarvey et al 2013;Slater and Anderson 2014), and correlations with tree seedling abundance and survival (Baumer and Runkle 2010). Curiously-given its distinctive growth form compared with other eastern North American shrub taxa-there are no published studies of A. triloba's architectural relationships under forested conditions except for Young (1985), who described crown height, branching, and leaf display contrasts between A. triloba and a co-occurring evergreen shrub (Ilex opaca Ait., American holly) in a Carya-Quercus forest in east-central Virginia, USA.…”

mentioning

confidence: 99%

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Pawpaw (Asimina triloba L.) ramet leaf-area scaling and patch foliar estimation in a midwestern upland forest 1

Sipe

2022

The Journal of the Torrey Botanical Society

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Forest understory shrub and small tree taxa vary in their shoot architectures in response to their physical and biotic environments and in turn alter the conditions around them, particularly patterns of light. Clonal shrubs establish patches that expand three dimensionally over time as new ramets are produced and the ramet population responds to environmental heterogeneity, competition, and disturbance. Ramet leaf-area scaling and patch foliar structure were examined for the shade-tolerant clonal species Asimina triloba L. Dunal (pawpaw) on upland sites in a mixed-deciduous, old-growth forest preserve in west-central Indiana, USA to address three questions: (a) How strong are predictive relationships for ramet foliar organization across individual leaves, leaf clusters, and whole ramets of differing size? (b) Is it possible to estimate patch foliar area nondestructively and accurately using scaling factors derived from the analysis of ramet foliar organization? (c) How does foliar structure differ within and across patches, including total leaf area estimated with scaling factors? A sample of 48 ramets spanning a wide size range of 0.25 to 2.5 m in height was extracted from the field and analyzed for whole-ramet relationships between main-stem length and several foliar variables. Forty-one long and short leaf clusters from these ramets were used to quantify relationships among cluster size, individual leaf area, and total leaf area and to estimate total ramet leaf area. Eight patches varying in areal size, stature, and ramet density were measured for numerous structural variables and a single cluster-based scaling factor was used to estimate total leaf area, leaf-area index (LAI), and leaf-area density in 2 3 2 m quadrats along continuous transects through patches. The results showed strong curve fits among foliar variables for both the ramet-level and cluster-level relationships and suggest that leaf clusters may be an important focus of foliar organization and dynamic adjustment for A. triloba. The eight patches showed substantial within-patch structural variation and their means differed significantly for all structural variables including LAI, which ranged from 0.42 to 1.28 m 2 m À2 . The results also suggest that total leaf area for A. triloba patches in undisturbed, mature upland forests like those in this study may be estimated nondestructively by counting the number of clusters projected over a sample plot base and multiplying by a weighted mean total cluster leaf area derived from the cluster-scaling relationships. This promising method should be tested across other physiographic conditions and forest types and where nontrivial canopy disturbance has affected A. triloba patch history.

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Section: Discussionmentioning

confidence: 99%

Section: Discussion Ramet Architecture and Leafmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Pawpaw (Asimina triloba L.) ramet leaf-area scaling and patch foliar estimation in a midwestern upland forest 1

Sipe

2022

The Journal of the Torrey Botanical Society

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“…Moreover, most of the previous studies on resource foraging of clonal plants have investigated herbaceous [ 7 , 8 , 9 , 10 , 11 , 12 , 16 , 17 , 18 , 19 , 20 , 24 , 38 , 40 , 41 , 42 , 44 , 46 , 47 ] or bamboo [ 13 , 15 ] species. The reproductive biology [ 1 , 29 , 55 , 56 , 57 , 58 , 59 ] and resultant genetic structure of populations [ 60 , 61 , 62 ] of clonal woody species have been studied intensively. However, to the best of our knowledge, no studies have quantitatively investigated light foraging or shade avoidance for clonal woody species.…”

Section: Introductionmentioning

confidence: 99%

Shade Avoidance and Light Foraging of a Clonal Woody Species, Pachysandra terminalis

Iwabe

Koyama

Komamura

2021

Plants

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(1) Background: A central subject in clonal plant ecology is to elucidate the mechanism by which clones forage resources in heterogeneous environments. Compared with studies conducted in laboratories or experimental gardens, studies on light foraging of forest woody clonal plants in their natural habitats are limited. (2) Methods: We investigated wild populations of an evergreen clonal understory shrub, Japanese pachysandra (Pachysandra terminalis Siebold & Zucc.), in two cool-temperate forests in Japan. (3) Results: Similar to the results of herbaceous clonal species, this species formed a dense stand in a relatively well-lit place, and a sparse stand in a shaded place. Higher specific rhizome length (i.e., length per unit mass) in shade resulted in lower ramet population density in shade. The individual leaf area, whole-ramet leaf area, or ramet height did not increase with increased light availability. The number of flower buds per flowering ramet increased as the canopy openness or population density increased. (4) Conclusions: Our results provide the first empirical evidence of shade avoidance and light foraging with morphological plasticity for a clonal woody species.

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Temperate Tree Fruits of North America: Malus Mill., Prunus L., Diospyros L., and Asimina Adans

Volk¹

2019

North American Crop Wild Relatives, Volume 2

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Compensatory growth of the clonal understory tree, Asimina triloba, in response to small-scale disturbances

Cited by 4 publications

References 39 publications

Pawpaw (Asimina triloba L.) ramet leaf-area scaling and patch foliar estimation in a midwestern upland forest 1

Pawpaw (Asimina triloba L.) ramet leaf-area scaling and patch foliar estimation in a midwestern upland forest 1

Shade Avoidance and Light Foraging of a Clonal Woody Species, Pachysandra terminalis

Temperate Tree Fruits of North America: Malus Mill., Prunus L., Diospyros L., and Asimina Adans

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