Saturday, December 20, 2014

 

 



Soy un nuevo usuario

Olvidé mi contraseña

Entrada usuarios

Lógica Matemáticas Astronomía y Astrofísica Física Química Ciencias de la Vida
Ciencias de la Tierra y Espacio Ciencias Agrarias Ciencias Médicas Ciencias Tecnológicas Antropología Demografía
Ciencias Económicas Geografía Historia Ciencias Jurídicas y Derecho Lingüística Pedagogía
Ciencia Política Psicología Artes y Letras Sociología Ética Filosofía


Regional differences in land use affect population performance of the threatened insectivorous plant Drosophyllum lusitanicum (L.) Link

1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario
    registrado en Universia


  Descargar recurso

Detalles del recurso

Pertenece a: Digital.CSIC  

Descripción: We analyse populations of the insectivorous plant Drosophyllum lusitanicum (L.) Link (Droseraceae) and their habitats throughout the species' distribution range (Portugal, Spain and Morocco), and examine their relations. We have surveyed 32 populations and we analyse their demographic structures, accompanying plant communities (by TWINSPAN analyses), and relationships between population features and several edaphic and nonedaphic environmental variables (by multiple regression analyses). Plant communities, their floristic richness and degree of endemism change across the geographical range of Drosophyllum. Populations vary strongly in size, density and age structure. Their recruitment seems largely determined by competition with the surrounding vegetation, while only weak relationships were detected between population performance and other environmental factors. The demographic structure of populations exhibits a marked geographical differentiation, with populations becoming older and sparser towards the north-western part of the range. The largest and presumably most stable populations are mostly found in southern Spanish heathlands, which are nowadays scarcely affected by man. Moroccan populations suffer from browsing by cattle and experience an accelerated generation turnover, while most Portuguese populations occur in afforested areas and experience strongly reduced recruitment. The historical distribution range of Drosophyllum within its peculiar habitat has probably been relatively stable, but recent regional differences in human land use have resulted in present-day differences in population performance, as well as in types and degrees of threat across the three countries involved. Conservation strategies should take into account this range-wide variation and combine approaches on different spatial scales.

Autor(es): Garrido, Begoña -  Hampe, Arndt -  Marañón, Teodoro -  Arroyo Marín, Juan - 

Id.: 55147017

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveCarnivorous plant - 

Tipo de recurso: Artículo  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: openAccess

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://dx.doi.org/10.1046/j.1472-4642.2003.00029.x

Fecha de contribución: 02-abr-2012

Contacto:

Localización:
* Diversity and Distributions 9(5): 335-350 (2003)
* 1366-9516
* 10.1046/j.1472-4642.2003.00029.x
* 1472-4642


Otros recursos del mismo autor(es)

  1. Modelos de comportamiento femenino en las producciones cinematográficas de Blancanieves: la belleza como valor definitorio
  2. Regeneration of tree species and restoration under contrasted Mediterranean habitats: field and glasshouse experiments Understanding the processes of tree population recruitment and their limitations, is the scientific ...
  3. Ecología de los bancos de semilla en el suelo: una revisión de estudios españoles [EN]The ecology of soil seed banks plays a crucial role in the dynamics of grassland populations and...
  4. Los árboles en la naturaleza y la cultura: una experiencia bloguera En el marco de las actuaciones encaminadas a conectar los ciudadanos con los árboles, la divulgación...
  5. Anatomical notes on Turkish Frangula alnus Mill. (Rhamnaceae) In this study, the Turkish representatives of Frangula alnus were investigated in terms of wood, lea...

Otros recursos de la misma colección

  1. Técnicas no destructivas para la monitorización cuantitativa y cualitativa de procesos de biodeterioro en materiales pétreos [ES]: La colonización biológica de la piedra es uno de los principales problemas para la conservació...
  2. Influencia del fotoperíodo sobre el crecimiento y la composición mineral de plantas jóvenes de olivo. Se estudia la influencia de tres fotoperíodos, 6, 12 y 18 horas de iluminación por día, sobre el des...
  3. Regeneration of tree species and restoration under contrasted Mediterranean habitats: field and glasshouse experiments Understanding the processes of tree population recruitment and their limitations, is the scientific ...
  4. Reduced metribuzin pollution with phosphatidylchline clay formulations BACKGROUND: Metribuzin is a widely used herbicide that has been identified as a groundwater contamin...
  5. Ecología de los bancos de semilla en el suelo: una revisión de estudios españoles [EN]The ecology of soil seed banks plays a crucial role in the dynamics of grassland populations and...

Valoración de los usuarios

No hay ninguna valoración para este recurso.Sea el primero en valorar este recurso.
 

Busque un recurso