Open AccessLebenszyklen getrenntgeschlechtlicher Tardigraden: Paramacrobiotus tonollii und Macrobiotus sapiens
Author(s) -
Lemloh Marielouise,
Brümmer Franz,
Schill Ralph O.
Publication year - 2011
Publication title -
journal of zoological systematics and evolutionary research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 50
eISSN - 1439-0469
pISSN - 0947-5745
DOI - 10.1111/j.1439-0469.2010.00599.x
Subject(s) - homo sapiens , biology , tardigrade , hatching , zoology , life history , evolutionary biology , ecology , anthropology , sociology
The present work is the first one presenting life‐history information of bisexual tardigrades under laboratory conditions. Two bisexual tardigrade strains ( Paramacrobiotus tonollii and Macrobiotus sapiens ) were examined analysing the following life‐history traits: active life span, body lengths, age at first oviposition, egg‐laying intervals, clutch size, hatching time and hatching percentages. Comparing parthenogenetic and bisexual tardigrades, our results demonstrate that life‐history traits did not correlate to a mode of reproduction but rather vary in between the different species. Differences were observed for embryonic development ( P. tonollii : 16 days; M. sapiens : 12 days), for body lengths ( P. tonollii larger than M. sapiens ) and for a longer life span of M. sapiens (about 83 days).