Microhabitat Relationships of the Endangered Hemiparasite Schwalbea americana (American Chaffseed) in the New Jersey Pine Barrens

IF 0.5 4区环境科学与生态学 Q4 BIODIVERSITY CONSERVATION Northeastern Naturalist Pub Date : 2022-02-21 DOI:10.1656/045.029.0104

Jay F. Kelly, R. Denhof

引用次数: 1

Abstract

Abstract - We conducted observational and experimental studies of the endangered hemiparasitic plant species Schwalbea americana (American Chaffseed, hereafter Schwalbea) in the New Jersey pine barrens to better understand its association with fine-scale environmental conditions. Spatial analyses of Schwalbea coordinates revealed a clustered distribution and analyses of environmental variables found clear associations of Schwalbea clusters with various soil, water, and plant community conditions, including several grass and composite (Asteraceae) species, especially Chrysopsis mariana (Maryland Golden-aster) and Schizachyrium scoparium (Little Bluestem). Subsequent experiments found soil from adjacent areas completely inhibited Schwalbea germination, and greater growth and survival occurred when planted with composites than with grass or woody host species. These factors appeared to explain the failures of past propagation and restoration efforts, which did not reflect these microhabitat preferences.

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新泽西松园中濒危半寄生虫美洲施瓦布（美洲沙夫塞德）的微生境关系

摘要-我们在新泽西州松树荒地对濒危的半寄生植物Schwalbea americana（American Chaffseed，以下简称Schwalbea）进行了观测和实验研究，以更好地了解其与精细环境条件的关系。Schwalbea坐标的空间分析揭示了一种聚类分布，环境变量的分析发现Schwalbea聚类与各种土壤、水和植物群落条件有明显的关联，包括几种草和复合（菊科）物种，特别是马里亚纳金藻（Maryland Golden aster）和scoparium Schizachyrium（Little Bluestem）。随后的实验发现，邻近地区的土壤完全抑制了Schwalbea的发芽，与草或木质寄主物种相比，复合材料种植的Schwalbea生长和存活率更高。这些因素似乎解释了过去繁殖和恢复工作的失败，而这些努力并没有反映出这些微栖息地的偏好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Northeastern Naturalist 环境科学-生态学

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

18-36 weeks

期刊介绍： The Northeastern Naturalist covers all aspects of the natural history sciences of terrestrial, freshwater, and marine organisms and the environments of the northeastern portion of North America, roughly bounded from Virginia to Missouri, north to Minnesota and Nunavut, east to Newfoundland, and south back to Virginia. Manuscripts based on field studies outside of this region that provide information on species within this region may be considered at the Editor’s discretion. The journal welcomes manuscripts based on observations and research focused on the biology of terrestrial, freshwater, and marine organisms and communities as it relates to their life histories and their function within, use of, and adaptation to the environment and the habitats in which they are found, as well as on the ecology and conservation of species and habitats. Such studies may encompass measurements, surveys, and/or experiments in the field, under lab conditions, or utilizing museum and herbarium specimens. Subject areas include, but are not limited to, anatomy, behavior, biogeography, biology, conservation, evolution, ecology, genetics, parasitology, physiology, population biology, and taxonomy. Strict lab, modeling, and simulation studies on natural history aspects of the region, without any field component, will be considered for publication as long as the research has direct and clear significance to field naturalists and the manuscript discusses these implications.