Phalaris paradoxa (awned canary-grass).

Author(s):  
Ian Popay

Abstract P. paradoxa is a tufted annual grass which is considered a weed in many areas and can be invasive. It contains tryptamine alkaloids, which are toxic to some animals. It is native to the Mediterranean region of Europe, but has spread to locations including the USA, Australia and South America. It is a serious weed of wheat in Australia, with its success attribued to high seed production, innate dormancy and periodicity of emergence (Taylor et al., 1999).

Nova Hedwigia ◽  
2019 ◽  
Vol 109 (3) ◽  
pp. 425-433
Author(s):  
Carlos Lado ◽  
Miguel Ángel Ribes ◽  
Juan Francisco Moreno

The species Tubifera microsperma, distributed in tropical Asia, Hawaii, Japan, tropical Africa, Central and South America, tropical and temperate North America, and central and north of Europe is reported for the first time in the continental Mediterranean region. The specimens were recorded in two localities of the coast of Spain, on the trunk of Olea europaea and Alnus glutinosa, and confirm the expansion of the species to the Mediterranean region. A detailed description of the European collections, as well as comments on morphology, distribution and ecology are provided. Illustrations, with macro, micro and SEM photographs, of the Spanish collections, are also included. Documented climate changes have a negative effect on the distribution of some species, but provide new opportunities for others like T. microsperma, that slowly expand their area of distribution.


Author(s):  
M. Monir Madkour

There are four species of the Gram-negative, aerobic brucella bacillus, each comprising several biovars: Brucella melitensis (‘Malta fever’, most commonly associated with goats, sheep, and camels), B. abortus (cattle), B. suis (pigs), and B. canis (dogs). The disease that they cause—brucellosis—occurs worldwide, but is especially prevalent in the Mediterranean region, the Indian subcontinent, Mexico, and Central and South America. Transmission is commonly by ingestion of untreated dairy products or other contaminated foods, but can also be by inhalation or inoculation....


2021 ◽  
Author(s):  
Aleta Nafus

Abstract T. caput-medusae is a self-pollinating, annual grass. It is originally from the Mediterranean region, occurring eastwards in Asia to Kyrgyzstan and northwards in Europe to Budapest in Hungary. Introduced to the Americas in at least seven events between 1887 and 1988, it now occupies over one million hectares of rangelands in the western USA where it is considered invasive and is listed as a noxious weed in many states, and is estimated to be spreading at a rate of 12% per year. In the western USA. It is highly competitive, forming monotypic stands that not only exclude native species but transform the ecological functioning of its invaded habitat to better facilitate its own survival to the detriment of the entire invaded ecosystem.


2012 ◽  
Vol 38 (2) ◽  
pp. 53-66 ◽  
Author(s):  
Christian Perennou ◽  
Coralie Beltrame ◽  
Anis Guelmami ◽  
Pere Tomàs Vives ◽  
Pierre Caessteker

2007 ◽  
Vol 114 (4) ◽  
pp. 263-267 ◽  
Author(s):  
H. Ayanoğlu ◽  
S. Bayazit ◽  
G. İnan ◽  
M. Bakır ◽  
A.E. Akpınar ◽  
...  

1988 ◽  
Vol 64 (3-4) ◽  
pp. 265-286 ◽  
Author(s):  
Michael W. Howell ◽  
Robert Thunell ◽  
Eric Tappa ◽  
Domenico Rio ◽  
Rodolfo Sprovieri

Sign in / Sign up

Export Citation Format

Share Document