truncatula mollusks are biological hosts exclusively for F hepatica, as well as the fact that they are widely distributed in the ponds of Ukrainian Polissya and the damage by the trematodes' partenites and larvae (especially in biotopes
of lakes and swamps), there is a high risk for ruminants about fasciolosis throughout the studied area.
Percentage of plant species available by biotopes
in study area and their occurrence in Mourning dove diet
The [delta][sup.15] signal for the five studied echinoids of hardground biotopes
varied from 5.77 [+ or -] 0.25 [mean [+ or -] SD] to 8.22 [+ or -] 0.36 %; whereas the species collected on seagrass biotopes
showed values of nitrogen from 6.09 [+ or -] 0.79 to 8.02 [+ or -] 0.36 % (Fig.
nitedula numbers in both forest biotopes
. For a given study period, average numbers of these dormice in oak forest was 1.7 times higher than in hornbeam-beech forest (t = 5.7, p < 0.0002).
, aquatic macrophytes and plankton, were sampled at five sites (Figure 2) along the Ubatiba stream.
Example of Jelgava shows ecologically valuable biotopes
in the centre of the city.
Immature stages were collected using the dipping method of Service (10) and each larval biotope
was characterized quantitatively by means of a portable multi-parameter for studying the chemical proprieties of water collections.
The study was carried out in five main biotopes
(1) fixed grey dune, (2) salty mud, (3) salty meadow, (4) Pinus dune forest and (5) afforestation with Eucalyptus spp.
Nous avons donc cherche a connaitre le choix du Criquet pour toutes les especes vegetales presentes dans les differents biotopes
prospectes, quelles que soient leurs abondances.
Miladi said that Tunisia has about 2,000 species of native medicinal plants of saline biotopes
, arid or desert, Aastressing in this regard, the need to properly operate these plants and their biological substances so as to use them as antibiotics and anti-inflammatory medicines.
However, after fully occupying forest habitat and expanding to treeless biotopes
, reproductive efficiency declined.
All the grounds are established in natural biotopes
where wild scallops occur.