Invasión de Oenothera drummondii Hook. (Onagraceae) en el Paraje natural Marismas del Odiel (Huelva, S España)bases para la gestión de una invasión avanzada

  1. Juan García de Lomas 1
  2. Laura Fernández Carrillo 1
  3. María Concepción Saavedra 1
  4. Lara Mangas 1
  5. Carmen Rodríguez Hiraldo 2
  6. Enrique Sánchez Gullón 3
  7. Enrique Martínez Montes 3
  1. 1 Agencia de Medio Ambiente y Agua de Andalucía
  2. 2 Consejería de Medio Ambiente y Ordenación del Territorio
  3. 3 Paraje Natural Marismas del Odiel
Journal:
Revista de la Sociedad Gaditana de Historia Natural: RSGHN

ISSN: 2340-5759

Year of publication: 2015

Volume: 9

Pages: 41-50

Type: Article

More publications in: Revista de la Sociedad Gaditana de Historia Natural: RSGHN

Abstract

The coastal evening primrose (Oenothera drummondii Hook.) is a plant native to Mexico and the southern coasts of North America that isinvading habitats of Community interest in the Odiel Marshes Nature Reserve (Huelva, S Spain). Invasiveness was estimated by developing a georeferenced mapping of plant density throughout the sandy environments in the Re- serve. The surface invaded in November, 2014 was 123 ha, co- rresponding to 30.2% of environments potentially invaded (407 ha). O. drummondii colonizes coastal dunes, showing preference for fixed dunes with herbaceous vegetation. The highest densities were found in the middle of the spit, which correspondsto the oldest land arising from the construction of a groin to protect the Huelva harbour (Dique Juan Carlos I). The high degree of invasion in the Reserve and the existence of additional localitiesinvaded in the Huelva and Cadiz provinces suggest that this invasive plant could continue to expand through the Gulf of Cádiz. The magnitude of the invasion and the biological characteristics of the species pose serious management difficulties, so it is recommended to evaluate different control methods adapted to its current distribution