hydrophytes. One year later, in 2008, Typha had increased its RIV and has
remained the dominant species over time. Dalbergia disappeared from the monitored zones, while Mikania micrantha and Pontederia sagittata (hereafter named
Pontederia), both desirable species, increased six- and five-fold respectively. In
several species the importance values fell, and this was when water was flushed
out of the site. Sagittaria remained stable and by 2009, had increased its RIV
values. In 2010 Sagittaria was the third dominant after Typha and Pontederia.
Echinochloa was recorded again in some quadrats with low RIV values.
(a)
(b)
Fig. 16.3 a Hydroperiod changes across time from March 2007 (project start, time 0) to April
2010 (time 36). b Mean monthly rainfall during the study period obtained from La Mancha
weather station
262
H. López-Rosas et al.
remained the dominant species over time. Dalbergia disappeared from the monitored zones, while Mikania micrantha and Pontederia sagittata (hereafter named
Pontederia), both desirable species, increased six- and five-fold respectively. In
several species the importance values fell, and this was when water was flushed
out of the site. Sagittaria remained stable and by 2009, had increased its RIV
values. In 2010 Sagittaria was the third dominant after Typha and Pontederia.
Echinochloa was recorded again in some quadrats with low RIV values.
(a)
(b)
Fig. 16.3 a Hydroperiod changes across time from March 2007 (project start, time 0) to April
2010 (time 36). b Mean monthly rainfall during the study period obtained from La Mancha
weather station
262
H. López-Rosas et al.