Invasive species

Brown, B. J. and Mitchell, R. J. (2001). Competition for pollination Effects of pollen of an invasive plant on seed set of a native congener. Oecologia 129 43-49. Brown, B. J., Mitchell, R. J. and Graham, S. A. (2002). Competition for pollination between an invasive species (purple loosestrife) and a native congener. Ecology 83 2328-2336. 

Keywords Ebro River, Global change, Invasive species, Longitudinal patterns, Management, Phytoplankton, Reservoirs... 

Ecosystem and biodiversity conservation presence of invasive species... 

Impact on biodiversity Water level regulation and shortage of fresh water, for instance, due to an increase in brackish water may affect biodiversity. Furthermore, the introduction of invasive species may also result in a decrease of biodiversity as consequence of competitive subsistence processes. 

One of the major future challenges affecting phytodiversity is climate change. In the following, we will discuss current knowledge concerning the influence of climate change on plant species richness via effects on nutrient availabilities and invasive species. 

Climate change leads to shifts of species distribution ranges towards the poles (Parmesan and Yohe 2003) and influences the success of invasive species. 

Lee CE (2002) Evolutionary genetics of invasive species. Trends Ecol Evol 17 386-391 Leonardi PI, Miravalles AB, Faugeron S, Flores V, Beltran J, Correa JA (2006) Diversity, phenomenology and epidemiology of epiphytism in farmed Gracilaria chilensis (Rhodophyta) in northern Chile. Eur J Phycol 41 247-257... 

Of environmental concern is the introduction of species into environments where they were not naturally present (invasive species) due to long range transportation of water in ballast tanks. Vessels immersed can allow fouling communities to develop and spread beyond their native distribution which in some cases will have unwanted consequences for the environment, economics and human health (Minchin and Gollasch, 2003 Godwinn, 2003). 

Invasive species Ships and ballast water, fishery stocking, aquarists Dispiaces native species, introduces new diseases. 

Ecological Impacts from the Interaction of Climate Change, Land Use Change, and Invasive Species... 

Tsutsui, N.D. Suar A.V. Holway, D.A. Case, T.J. (2000) Reduced genetic variation and the success of an invasive species. Proc. Natl. Acad. Sci., 97,5948-53. 

Executive Order 13112 (February 3, 1999). Presidential Documents. Invasive Species. 

The development of second-generation biofuels may however require more patience. Some of the most popular biocrop feedstocks seem to belong to what are called "invasive species," better known as "weeds," with a high tendency to escape biofuel plantations and overrun adjacent farms and natural land [66]. One expert stated that investors have often started these new ventures in the expectation to produce biofuels in return and in the not-too-far future. It is understandable that they do not like negative assessments. But clearly this is another example where a proper assessment has to be made and patience needs to be applied. 

Andersen ME, Adams H, Hope BK, Powell M. 2004. Risk assessment for invasive species. Risk Anal 24 787-793. 

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