Allelopathic and Biochemical Characteristics of the Root Environment of Asimina Triloba (L.) Dunal

Павлюченко, Наталія

doi:10.15414/agrobiodiversity.2018.2585-8246.062-068

Cited by 2 publications

(3 citation statements)

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“…In our study ecosystem, sites invaded by the allelopathic shrub, bush honeysuckle (Lonicera mackii), have low diversity of native plant species (Powell et al 2013), making this a particularly intriguing hypothesis. However, the current evidence for allelopathy in pawpaws is weak (McEwan et al 2010, Pavliuchenko 2018 to negative (Cole and Weltzin 2005). Third, pawpaw's interaction with a dominant herbivore, white-tailed deer (Odocoileus virginianus), may explain patterns of diversity.…”

Section: Observed Simulated and Standardized Effect Sizes Of Beta-div...mentioning

confidence: 90%

“…In addition, high pawpaw stem densities and clonal growth may increase belowground competition for soil nutrients and water (Baumer and Runkle 2010). Second, pawpaw may be allelopathic (McEwan et al 2010, Pavliuchenko 2018). In our study ecosystem, sites invaded by the allelopathic shrub, bush honeysuckle (Lonicera mackii), have low diversity of native plant species (Powell et al 2013), making this a particularly intriguing hypothesis.…”

Section: Observed Simulated and Standardized Effect Sizes Of Beta-div...mentioning

confidence: 99%

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Pawpaws prevent predictability: A locally-dominant tree alters understory beta-diversity and community assembly

Wassel,

Myers

2024

Preprint

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While dominant species are known to be important in ecosystem functioning and community assembly, biodiversity responses to the presence of dominant species can be highly variable. Dominant species can increase the importance of deterministic community assembly by competitively excluding species in a consistent way across local communities, resulting in low site-to-site variation in community composition (beta-diversity) and non-random community structure. In contrast, dominant species could increase the importance of stochastic community assembly by reducing the total number of individuals in local communities (community size), resulting in high beta-diversity and more random community structure. We tested these hypotheses in a large, temperate oak-hickory forest plot containing a locally-dominant tree species, pawpaw (Asimina triloba; Annonaceae), an understory tree species that occurs in dense, clonal patches in forests throughout the east-central United States. We determined how the presence of pawpaw influences local species diversity, community size, and beta-diversity by measuring the abundance of all vascular plant species in 1x1-m plots both inside and outside pawpaw patches. To test whether the presence of pawpaw influences local assembly processes, we compared observed patterns of beta-diversity inside and outside patches to a null model of random assembly. We found lower local species diversity, lower community size, and higher observed beta-diversity inside pawpaw patches than outside pawpaw patches. Moreover, standardized effect sizes of beta-diversity from the null model were lower inside pawpaw patches than outside pawpaw patches, indicating more random community composition inside pawpaw patches. Together these results suggest that pawpaw increases the importance of stochastic relative to deterministic community assembly at local scales, likely by decreasing overall numbers of individuals, and increasing random local extinctions inside patches. Our findings provide insights into the ecological processes by which locally-dominant tree species shape the assembly and diversity of understory plant communities at different spatial scales.

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Section: Observed Simulated and Standardized Effect Sizes Of Beta-div...mentioning

confidence: 90%

Section: Observed Simulated and Standardized Effect Sizes Of Beta-div...mentioning

confidence: 99%

Pawpaws prevent predictability: A locally-dominant tree alters understory beta-diversity and community assembly

Wassel,

Myers

2024

Preprint

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“…The success of the introduction of new plant species is largely determined by the allelopathic factor, that regulates the processes of growth and development both in plantings of different plant species and in monoculture (Zaimenko et al, 2017;Pavliuchenko et al, 2018). The study of species interactions between C. sativa and Pseudotsuga menziesii (Mirb.)…”

Section: Sativa Grows In Nature Mainly In the Mediterranean And Atmentioning

confidence: 99%

Allelochemicals from Castanea Sativa Mill.: Plant-Root Environment Interactions

Павлюченко¹

2019

Agrobiodiversity for Improving of Nutrition, Health and Life Quality

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Allelopathic and Biochemical Characteristics of the Root Environment of Asimina Triloba (L.) Dunal

Abstract: AGROBIODIVERSITY f o r i m p r o v i n g n u t r i t i o n , h e a l t h a n d l i f e q u a l i t y 2018

Cited by 2 publications

References 16 publications

Pawpaws prevent predictability: A locally-dominant tree alters understory beta-diversity and community assembly

Pawpaws prevent predictability: A locally-dominant tree alters understory beta-diversity and community assembly

Allelochemicals from Castanea Sativa Mill.: Plant-Root Environment Interactions

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