evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics

We used population projection matrices to analyse the demography of Mammillaria crucigera, a rare cactus endemic to a small region in Central Mexico. Matrices were based on a 2-year period of observations on survival, growth and reproduction. No seed germination or seedling survival were observed

Bibliographic Details
Authors: Contreras, C, Valverde, MT
Format: article
Status:Published version
Publication Date:2002
Country:México
Institution:Universidad Nacional Autónoma de México
Repository:Sistema de Información de la Facultad de Ciencias, UNAM
OAI Identifier:oai:repositorio.fciencias.unam.mx:11154/1856
Online Access:http://hdl.handle.net/11154/1856
Access Level:Open access
Keyword:Ecology
Environmental Sciences
matrix models
cacti
Mammillaria crucigera
conservation
rare species
demography
Tehuacan Valley
population dynamics
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oai_identifier_str oai:repositorio.fciencias.unam.mx:11154/1856
network_acronym_str MX
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spelling evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamicsContreras, CValverde, MTEcologyEnvironmental Sciencesmatrix modelscactiMammillaria crucigeraconservationrare speciesdemographyTehuacan Valleypopulation dynamicsWe used population projection matrices to analyse the demography of Mammillaria crucigera, a rare cactus endemic to a small region in Central Mexico. Matrices were based on a 2-year period of observations on survival, growth and reproduction. No seed germination or seedling survival were observedthus, these matrix entries were experimentally estimated. Population growth rate (lambda) was lower than unity when low germination values (as those expected in natural conditions) were applied. The highest elasticity values corresponded to the survival of large adults. Matrix simulations indicated that only significant increases in fecundity and seedling survival resulted in positive lambda values. (C) 2002 Elsevier Science Ltd.2011-01-22T10:26:53Z2011-01-22T10:26:53Z2011-01-22T10:26:53Z2011-01-22T10:26:53Z2002info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0140-1963http://hdl.handle.net/11154/1856218610.1006/jare.2001.092651(1):89-102reponame:Sistema de Información de la Facultad de Ciencias, UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMenJournal of Arid Environmentsinfo:eu-repo/semantics/openAccessoai:repositorio.fciencias.unam.mx:11154/18562025-09-17T19:20:34Z
dc.title.none.fl_str_mv evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics
title evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics
spellingShingle evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics
Contreras, C
Ecology
Environmental Sciences
matrix models
cacti
Mammillaria crucigera
conservation
rare species
demography
Tehuacan Valley
population dynamics
title_short evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics
title_full evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics
title_fullStr evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics
title_full_unstemmed evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics
title_sort evaluation of the conservation status of a rare cactus (mammillaria crucigera) through the analysis of its population dynamics
dc.creator.none.fl_str_mv Contreras, C
Valverde, MT
author Contreras, C
author_facet Contreras, C
Valverde, MT
author_role author
author2 Valverde, MT
author2_role author
dc.subject.none.fl_str_mv Ecology
Environmental Sciences
matrix models
cacti
Mammillaria crucigera
conservation
rare species
demography
Tehuacan Valley
population dynamics
topic Ecology
Environmental Sciences
matrix models
cacti
Mammillaria crucigera
conservation
rare species
demography
Tehuacan Valley
population dynamics
description We used population projection matrices to analyse the demography of Mammillaria crucigera, a rare cactus endemic to a small region in Central Mexico. Matrices were based on a 2-year period of observations on survival, growth and reproduction. No seed germination or seedling survival were observed
publishDate 2002
dc.date.none.fl_str_mv 2002
2011-01-22T10:26:53Z
2011-01-22T10:26:53Z
2011-01-22T10:26:53Z
2011-01-22T10:26:53Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0140-1963
http://hdl.handle.net/11154/1856
2186
10.1006/jare.2001.0926
identifier_str_mv 0140-1963
2186
10.1006/jare.2001.0926
url http://hdl.handle.net/11154/1856
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv Journal of Arid Environments
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv 51(1):89-102
reponame:Sistema de Información de la Facultad de Ciencias, UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Sistema de Información de la Facultad de Ciencias, UNAM
collection Sistema de Información de la Facultad de Ciencias, UNAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1858176194610987008
score 15,812429

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