兰州大学机构库 >生命科学学院
Niche construction for desert plants in individual and population scales: Theoretical analysis and evidences from saksaul (Haloxylon ammodendron) forests
Yue, DX; Hui, C; Li, Z
2004
Source PublicationISRAEL JOURNAL OF PLANT SCIENCES   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN0792-9978
Volume52Issue:3Pages:235-244
AbstractNiche construction, also called "ecosystem engineering", means that organisms can modify their environments, and this phenomenon has been observed in a wide variety of ecosystems. Selecting the desert plant Haloxylon ammodendron (saksaul) as our research object, we reveal the mechanism of niche construction in the relationship between saksaul and soil resource content and discuss the patterns in individual and population scales. Theoretical analyses show that the dynamics of these desert vegetation systems are governed by a positive feedback between focal ecological index and resource content in different scales. Feedback in individual scales generates a positive correlation between biomass and individual niche fitness, which forms a biomass threshold for seedlings. Feedback in population scales generates a positive correlation between vegetation cover rate and habitat niche fitness, which forms a density threshold for planting. Mechanisms of niche construction in gene scale, individual scale, and population scale are compared. The results imply that similar mechanisms of niche construction produce different patterns with altering scales, which also means that the selection unit may be altered with scales. Our study indicates that ecological or evolutionary patterns under a similar mechanism may be diverse, and the evolutionary directions induced by niche construction may be opposite with different scales, which can generate alternative stable states in desert vegetation systems. One state is characterized by low density and high local fitness but low regional fitness, with large individuals; and the other, by high density and relatively low local fitness but high regional fitness, with small individuals.
Keywordpositive feedback ecosystem engineering organism-environmental relationship fertile island effect
Subject AreaPlant Sciences
PublisherLASER PAGES PUBL LTD
DOI10.1560/XBQW-L1WH-1Q3X-DJHR
Publication PlaceJERUSALEM
Indexed BySCIE ; BIOSIS
Language英语
First Inst
WOS IDWOS:000225785400007
SubtypeArticle
BIOSIS IDBIOSIS:PREV200500118835
DepartmentLanzhou Univ, State Key Lab Arid Agroecol, Lanzhou 730000, Gansu, Peoples R China;
Univ Stellenbosch, Dept Conservat Ecol, Spatial Physiol & Conservat Ecol Grp, ZA-7602 Matieland, South Africa
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/114202
Collection生命科学学院
资源环境学院
Corresponding AuthorLi, Z
Affiliation
1.Lanzhou Univ, State Key Lab Arid Agroecol, Lanzhou 730000, Gansu, Peoples R China
2.Univ Stellenbosch, Dept Conservat Ecol, Spatial Physiol & Conservat Ecol Grp, ZA-7602 Matieland, South Africa
Recommended Citation
GB/T 7714
Yue, DX,Hui, C,Li, Z. Niche construction for desert plants in individual and population scales: Theoretical analysis and evidences from saksaul (Haloxylon ammodendron) forests[J]. ISRAEL JOURNAL OF PLANT SCIENCES,2004,52(3):235-244.
APA Yue, DX,Hui, C,&Li, Z.(2004).Niche construction for desert plants in individual and population scales: Theoretical analysis and evidences from saksaul (Haloxylon ammodendron) forests.ISRAEL JOURNAL OF PLANT SCIENCES,52(3),235-244.
MLA Yue, DX,et al."Niche construction for desert plants in individual and population scales: Theoretical analysis and evidences from saksaul (Haloxylon ammodendron) forests".ISRAEL JOURNAL OF PLANT SCIENCES 52.3(2004):235-244.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Yue, DX]'s Articles
[Hui, C]'s Articles
[Li, Z]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yue, DX]'s Articles
[Hui, C]'s Articles
[Li, Z]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yue, DX]'s Articles
[Hui, C]'s Articles
[Li, Z]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Niche construction for desert plants in individual and population scales_ Theoretical analysis and evidences from saksaul (Haloxylon ammodendron) forests.pdf
Format: Adobe PDF
No comment.
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.