Ψηφιακό Τεκμήριο

nefeli.lib.teicrete.gr

Ψηφιακό Τεκμήριο

SUMMARY

Forestry ecosystems of Crete have been degraded as far as quantity and quality are

concerned. This problem is due to overgrazing, tourism and wide spread monocultures.

The existed forests are mainly consisted of oaks (Quercus spp.), as well as Pine trees

(Cupressus sempervirens on Western Crete and Pinus Brutia in Eastern Crete).

In this study we mainly collect arthropods from four forests of Western Crete, presenting

data that were revealed by the comparison of the different. Samplings took place in the

following regions of Western Crete: a) Quercus macrolepis forest, near Armenoi village,

Southern of Rethimno. b) Quercus ilex forest near Kastelos village at Apokorona region

of Chania. c) Quercus coccifera forest over Krapi plateau. d) mixed Cupressus

sempervirens, Acer campestre, Quercus coccifera forest, after Askyfou’ s village, before

Niato’s plateau.

A large number of soil invertebrates from different taxa and some small vertebrates were

collected by means of pitfall traps (8 cm height and 6,5 cm in diameter) from four

sampling stations (The areas that were described before) The fixing medium was

ethylenoglycole, which is colorless, odorless and not volatile. Pitafall traps were set in

operation for six months period (Spring months and Autumn months), and the content of

the traps were collected and studied monthly. Arthropods were preserved in 70% alcohol.

Based on the number of items, comparisons have been made among the sampling areas

and between the seasons per sampling area. Moreover biodiversity was compared with

Shannon – Wiener (H’) index among the sampling stations and between the seasons per

station. Centipedes were studied in detail and seasonal distribution of the main species

referred in the present study. Main species appeared to be Eupolybothrus litoralis,

Scolopendra cretica, and Lithobious nigripalpis.

5

More magazines by this user