دورية أكاديمية
أعرض في EDS

Effect of soil heterogeneity and endogenous processes on plant spatial structure.

التفاصيل البيبلوغرافية
العنوان: Effect of soil heterogeneity and endogenous processes on plant spatial structure.
المؤلفون: Schouten OS; Department of Biological Sciences, Wichita State University, 537 Hubbard Hall, Campus Box 26, 1845 Fairmount Street, Wichita, Kansas, 67260, USA., Houseman GR; Department of Biological Sciences, Wichita State University, 537 Hubbard Hall, Campus Box 26, 1845 Fairmount Street, Wichita, Kansas, 67260, USA.
المصدر: Ecology [Ecology] 2019 Nov; Vol. 100 (11), pp. e02837. Date of Electronic Publication: 2019 Aug 22.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
اللغة: English
بيانات الدورية: Publisher: Ecological Society of America Country of Publication: United States NLM ID: 0043541 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1939-9170 (Electronic) Linking ISSN: 00129658 NLM ISO Abbreviation: Ecology Subsets: MEDLINE
أسماء مطبوعة: Publication: Washington, DC : Ecological Society of America
Original Publication: Brooklyn, NY : Brooklyn Botanical Garden
مواضيع طبية MeSH: Plants* , Soil*, Ecosystem
مستخلص: Within communities, organisms potentially self-organize through endogenous processes that create nonrandom spatial structure as they interact with one another or modify the abiotic environment. In contrast, exogenous processes such as environmental heterogeneity or variable immigration are thought to be dominant processes controlling these spatial patterns. Although both endogenous and exogenous processes likely occur, their relative importance is still largely unknown because of limited analytical tools and the lack of experimental evidence, particularly those that address exogenous sources of environmental heterogeneity. Here, we used a soil heterogeneity experiment to examine the relative effect of endogenous and exogenous processes on plant spatial structure after five years of community assembly. Soil heterogeneity was manipulated by splitting the vertical soil profile into three soil-types that were randomly assigned to 40 × 40 cm patches within 2.4 × 2.4 m plots. Homogeneous plots were created by mixing all soils before filling each patch. Thirty-four grassland species were then sown into all plots and allowed to grow for five years after which the location of all plants was mapped using a 5 × 5 cm grid. Results from point-pattern spatial analysis indicated that, even in the absence of soil heterogeneity and with initial seed arrival, spatial structure was primarily generated by endogenous processes. Although soil heterogeneity increased species aggregation at certain scales, most of the spatial structure was created by endogenous processes. These results suggest that endogenous processes may be more important than expected for generating spatial structure and can develop much faster than anticipated.
(© 2019 by the Ecological Society of America.)
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فهرسة مساهمة: Keywords: O-ring statistic; aggregation; coexistence; community assembly; endogenous process; environmental heterogeneity; exogenous process; plant-plant interactions; point-pattern analysis; segregation
المشرفين على المادة: 0 (Soil)
تواريخ الأحداث: Date Created: 20190723 Date Completed: 20191212 Latest Revision: 20200108
رمز التحديث: 20221213
DOI: 10.1002/ecy.2837
PMID: 31330044
قاعدة البيانات: MEDLINE
الوصف
تدمد:1939-9170
DOI:10.1002/ecy.2837