Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/BUOS-9TPF4Z
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor1 | Eduardo Leite Borba | pt_BR |
dc.contributor.advisor-co1 | Claudia Maria Jacobi | pt_BR |
dc.creator | Frederic Mendes Hughes | pt_BR |
dc.date.accessioned | 2019-08-09T17:14:59Z | - |
dc.date.available | 2019-08-09T17:14:59Z | - |
dc.date.issued | 2014-08-22 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/1843/BUOS-9TPF4Z | - |
dc.description.abstract | Associations between plants and substrate in drylands enhance the ability of nutrient pools buildup and seedling establishment. However, this relationship has not been extensively demonstrated in populations of lithophytic plants. We report the effects of microrelief and neighboring plants on the population structure of Melocactus species in the semiarid region of northeastern Brazil. The size classes of five populations and the seedling fate in two populations were examined through point pattern analysis. Association patterns between size classes were positive between seedlings and adults in all the populations. Cohorts were positively related to rainfall (> 60%). Recruitment events were microhabitat-dependent and showed high mortality levels (> 70%). The spatio-temporal decoupling between seedling fate and adults may favor population dynamics changes under rainfall uncertainty. Based on our analyses, we suggest that the relationship among size classes, microhabitat and rainfall in lithophytic populations of Melocactus is crucial to buffer negative effects of environmental severity in seedling recruitment and survival. | pt_BR |
dc.language | Inglês | pt_BR |
dc.publisher | Universidade Federal de Minas Gerais | pt_BR |
dc.publisher.initials | UFMG | pt_BR |
dc.rights | Acesso Aberto | pt_BR |
dc.subject | Globose cacti | pt_BR |
dc.subject | Microhabitats | pt_BR |
dc.subject | Seedling survival | pt_BR |
dc.subject | Neighborhood effect | pt_BR |
dc.subject | Point pattern analysis | pt_BR |
dc.subject.other | Ecologia | pt_BR |
dc.title | Biossistemática, filogeografia, estrutura microespacial e dinâmica populacional do complexo Melocactus oreas (Cactaceae) no Brasil | pt_BR |
dc.type | Tese de Doutorado | pt_BR |
Appears in Collections: | Teses de Doutorado |
Files in This Item:
File | Description | Size | Format | |
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hughes_et_al._all.pdf | 5.29 MB | Adobe PDF | View/Open |
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