巨棘龙生态学。撒哈拉以南非洲:分布、生态气候位和植物社会学

IF 0.2 Q4 ECOLOGY
P. Sonkoué, Manuella Kelly Djeuga Youga, Carine Pamela Kenfack, Armel Boris Takenne Wamba, G. Coppens d'Eeckenbrugge, C. Dubois, T. Fonkou
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引用次数: 0

摘要

巨蜥A.富有。是喀麦隆根据准入和利益分享(ABS)标准开发的一种菊科芳香药用植物。尽管它很重要,但关于巨足弓形虫生态学的信息很少。本研究的目的是促进更好地了解其生态,以便在喀麦隆西部高地进行可持续管理。在野外和不同数据库中收集了发生数据和固定生态信息。从WorldClim数据库中提取生物气候数据,使用DIVA-GIS和Maxent软件进行处理。植物社会学研究采用布朗-布兰凯样方法。结果表明,野生状态下的巨足鼠分布仅限于撒哈拉以南非洲地区。这种分布可能受海拔(1000 - 2600米)、光照、温度和降雨的影响。最能解释这种分布的生物气候变量是年平均温度(Bio1: 38.8%)和最冷季降水(Bio19: 24.9%),它们的有利范围分别为2°C ~ 32°C和300 mm ~ 1800 mm。E. giganteus是一种嗜日植物,喜欢排水良好的基质,不需要有机物。通过区系分析,鉴定出28科59属68种植物,其中以菊科最多(49%)。样方平均物种丰富度为8种,以草本植物为主。与巨猿一致的种有非洲Aspilia africana (Pers.)。c.d. Adams和白茅(L.)测定。生物类型以变色虫和显生植物为主,植物地理类型以泛热带植物为主(38.23%)。一水生殖类型和传播方式以pogono杂交种(35.85%)和anemo杂交种(55.38%)最具代表性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ecology of Echinops giganteus A. Rich. in Sub-Saharan Africa: Distribution, Ecoclimatic Niche, and Phytosociology
Echinops giganteus A. Rich. is an aromatic and medicinal plant of the Asteraceae family exploited in Cameroon under the access and benefit sharing (ABS) standard. Despite its importance, little information exists on the ecology of E. giganteus. The aim of the present study was to contribute to a better understanding of its ecology for sustainable management in the Western Highlands of Cameroon. Occurrence data as well as stationary ecological information were collected in the field and from different databases. Bioclimatic data were extracted from the WorldClim database and processed using DIVA-GIS and Maxent software. The Braun-Blanquet quadrat method was used for the phytosociological study. Results showed that the distribution of E. giganteus in its wild state is restricted to sub-Saharan Africa. This distribution is likely conditioned by altitude (1000 m–2600 m), light, temperature, and rainfall. The bioclimatic variables that best explained this distribution were the mean annual temperature (Bio1: 38.8%) and the precipitation of the coldest quarter (Bio19: 24.9%), and their favorable ranges were between 2°C–32°C and 300 mm–1800 mm, respectively. E. giganteus is a heliophilic plant that prefers well-drained substrates and would not have a requirement for organic matter. The floristic analysis of the E. giganteus community identified 68 plant species in 59 genera and 28 botanical families, with the most represented family being the Asteraceae (49%). The average species richness per quadrat was 8 species, dominated by herbs. Species consistent with E. giganteus were Aspilia africana (Pers.) C. D. Adams and Imperata cylindrica (L.) P. Beauv. Chamaephytes and Phanerophytes were dominant among the biological types, while the phytogeographic types were dominated by Pantropical species (38.23%). The most represented diaspore types and modes of dissemination were pogonochores (35.85%) and anemochores (55.38%).
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来源期刊
自引率
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发文量
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期刊介绍: The main aim of the International Journal of Ecology & Development (IJED) is to publish refereed, well-written original research articles, and studies that describe the latest research and developments in ecology and development. It also covers the many potential applications and connections to other areas of Ecological Science, economics and technology such as the use and development of mathematics/statistics in ecology or use and development of economics for ecology & development or inter-disciplinary nature of applications for Ecology & Development. International Journal of Ecology and Development is published three issues in a year in Winter, Summer and Fall.
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