Causes of individual mortality in the endangered star cactus Astrophytum asterias (Cactaceae): The effect of herbivores and disease in Mexican populations

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:30:57Z
Fecha de publicación2007-06-16
ResumenLittle is known about the causes of mortality in natural populations of threatened cactus species. In particular we focus on the endangered Astrophytum asterias in four populations where most individuals of the species are found. At two sites one of each vegetation type (Tamaulipan thornscrub {[}TS] and Piedmont thornscrub {[}PT]) we measured individual mortality by three causes: the plant pathogen Phytophtora infestans, a cerambicid beetle and the terrestrial squirrel Spermophilus mexicanus. We found that damage by the combination of pathogen and herbivore meant a reduction of more than 50\% in population size. From these factors, the most important cause of death was S. mexicanus followed by the cerambicid beetle in TS and P. infestans in PT. Mortality was concentrated in the small size categories, even though large size plants were also affected albeit to a lesser extent. More quantitative studies in field conditions are necessary to establish sound conservation efforts that could improve the recovery plans for this endangered plant species. (c) 2007 Elsevier Ltd. All rights reserved.es_ES
Doihttps://doi.org/10.1016/j.jaridenv.2007.03.017es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/2683
Idiomaenes_ES
EditorialElsevier BVes_ES
RelaciónJournal of Arid Environmentses_ES
URL relacionadohttps://doi.org/10.1016/j.jaridenv.2007.03.017es_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuenteJournal of Arid Environments
Palabra claveEndangered specieses_ES
Palabra claveBiologyes_ES
Palabra claveCactuses_ES
Palabra claveEcologyes_ES
Palabra claveThreatened specieses_ES
Palabra claveHerbivorees_ES
Palabra clavePopulationes_ES
Palabra claveHabitates_ES
Palabra claveDemographyes_ES
ClasificaciónBotany, Ecology, and Taxonomy Studieses_ES
TítuloCauses of individual mortality in the endangered star cactus Astrophytum asterias (Cactaceae): The effect of herbivores and disease in Mexican populationses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorMartínez-Ávalos, José Guadalupe
AutorGolubov, Jordán
AutorMartínez-Ávalos, José Guadalupees_ES
AutorMandujano, María C.
AutorGolubov, Jordánes_ES
AutorMandujano, María C.es_ES
AutorJurado, Enrique
AutorJurado, Enriquees_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número2es_ES
Rango de páginas250-258es_ES
URL relacionadahttps://doi.org/10.1016/j.jaridenv.2007.03.017
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen71es_ES

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