Avtor/Urednik		Kuntner, Matjaž; Sket, Boris; Blejec, Andrej
Naslov		A comparison of the respiratory system in some cave and surface species of spiders (Aranea, Dysderidae)
Tip		članek
Vir		J Arachnol
Vol. in št.		Letnik 27
Leto izdaje		1999
Obseg		str. 142-8
Jezik		eng
Abstrakt		We tested the hypothesis that the respiratory system of hypogean spiders is subject tn regressive evolution by examining representatives of the family Dysderidae. This comparison included the epigean species Dysdera ninnii Canestrini 1868, and Harpactea lepida (C.L. Koch 1838), and the hypogean species Stalita taenaria Schioedte 1847, and Parastalita stygia (Joseph 1882). Both tube tracheae and book lungs of these species were measured and compared using 10 indices. Both the tracheal system ancl book lungs of the hypogean species were less developed than those of the epigean ones. We suggest that the cause is reduction of the respiratory system as a part of general structural reductions in the troglohite5. This is consistent with the lower respiratory rates that characterize many troglobites.
Deskriptorji		SPIDERS RESPIRATORY SYSTEM ARACHNIDA