Ecological Correlates of Reproductive Output in a Tennessee Population of Short's Bladderpod, Physaria globosa (Brassicaceae)

IF 0.2 4区生物学 Q4 PLANT SCIENCES

Castanea Pub Date : 2022-06-15 DOI:10.2179/0008-7475.87.1.20

Shawn E. Krosnick, James H. Thacker, Hayden T. Mattingly, Geoff P. Call, Silas C. Maynord, Daniel S. Adams, Kit Wheeler

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引用次数: 1

Abstract

ABSTRACT Physaria globosa (Brassicaceae), commonly known as Short's Bladderpod, is a federally protected species restricted to Tennessee, Kentucky, and southern Indiana. In 2016, we studied aspects of life history and ecology in a population of P. globosa near Hartsville, Tennessee. Our objectives were to document fecundity-related life history traits and to examine the potential influence of light levels and soil depth on plant growth and reproductive output. In addition, we examined 45 herbarium specimens of P. globosa to assess the potential relationship between taproot size and number of inflorescences per plant. We found the strongest positive relationships between the number of flowering stems per plant and the number of flowers and fruits per plant. Relationships between light levels, soil depth, and biotic factors were only weakly significant. Taproot width was positively correlated with the number of flowering stems on herbarium specimens. Our findings increase the life history and ecology knowledge base available to guide ongoing recovery efforts for the species.

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田纳西州Short's Bladderpod、Physaria globosa（Brassicaceae）种群繁殖产量的生态相关性

摘要:球Physaria globosa(芸苔科)，俗称Short's Bladderpod，是一种联邦保护物种，仅分布于田纳西州、肯塔基州和印第安纳州南部。2016年，我们在田纳西州哈茨维尔附近研究了P. globosa种群的生活史和生态学方面。我们的目标是记录与繁殖力相关的生活史特征，并研究光照水平和土壤深度对植物生长和繁殖产量的潜在影响。此外，我们还检测了45份植物标本室标本，以评估单株原根大小与花序数之间的潜在关系。我们发现每株开花茎数与每株花和果实数之间的正相关关系最强。光照水平、土壤深度和生物因子之间的关系不显著。植物标本室标本主根宽度与开花茎数呈正相关。我们的发现增加了生活史和生态学知识基础，可以指导该物种的持续恢复工作。

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来源期刊

Castanea 生物-植物科学

CiteScore

0.50

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： Castanea is named in honor of the American Chestnut tree. Castanea is thebotanical name for Chestnuts, dating back to what the ancient Greeks calledthem. The American Chestnut is a critically endangered tree that once made up 35%of the forests of the Eastern US before being devastated by a blight thatdestroyed up to 4 billion American Chestnut trees. Castanea serves professional and amateur botanists by reviewing andpublishing scientific papers related to botany in the Eastern United States. We accept papers relating to plant biology, biochemistry, ecology, floristics,physiology and systematics.