caa a22 4500 445893974 CHVBK 20180317145625.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10750-011-0613-8 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0613-8 Egg viability of the rotifer Brachionus urceolaris after ingestion by the predatory cladoceran Leptodora kindtii [Elektronische Daten] [Takamaru Nagata, Masaki Sakamoto, Yoshinari Tanaka, Takayuki Hanazato] Egg resistance against the digestive process of a predator is an effective strategy for zooplankton to compensate population loss due to predation. Parthenogenetic eggs of the rotiferan Brachionus urceolaris, which were ingested by the predatory cladoceran Leptodora kindtii, were expelled from the feeding basket of the predator without digestion. We found a negative correlation between the unconsumed ratio of eggs after ingestion and body length of the predator. As high as 75% of the unconsumed eggs successfully hatched and the hatch ratio was independent of body length of L. kindtii. Our results indicate that the rotifer has an effective strategy to maintain its population in the environment with abundant invertebrate predators. Springer Science+Business Media B.V., 2011 Rotifer nationallicence Parthenogenetic egg nationallicence Resistance against digestion nationallicence Leptodora nationallicence Prey-predator interaction nationallicence Size dependence nationallicence Nagata Takamaru Institute of Mountain Science, Shinshu University, Kogandori 5-2-4, 392-0027, Suwa, Japan aut Sakamoto Masaki Research Center for Environmental Risk, National Institute for Environmental Studies, Onogawa 16-2, 305-8506, Tsukuba, Japan aut Tanaka Yoshinari Research Center for Environmental Risk, National Institute for Environmental Studies, Onogawa 16-2, 305-8506, Tsukuba, Japan aut Hanazato Takayuki Institute of Mountain Science, Shinshu University, Kogandori 5-2-4, 392-0027, Suwa, Japan aut Hydrobiologia Springer Netherlands 665/1(2011-05-01), 263-266 0018-8158 665:1<263 2011 665 10750 https://doi.org/10.1007/s10750-011-0613-8 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0613-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nagata Takamaru Institute of Mountain Science, Shinshu University, Kogandori 5-2-4, 392-0027, Suwa, Japan aut NATIONALLICENCE 700 1- Sakamoto Masaki Research Center for Environmental Risk, National Institute for Environmental Studies, Onogawa 16-2, 305-8506, Tsukuba, Japan aut NATIONALLICENCE 700 1- Tanaka Yoshinari Research Center for Environmental Risk, National Institute for Environmental Studies, Onogawa 16-2, 305-8506, Tsukuba, Japan aut NATIONALLICENCE 700 1- Hanazato Takayuki Institute of Mountain Science, Shinshu University, Kogandori 5-2-4, 392-0027, Suwa, Japan aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 665/1(2011-05-01), 263-266 0018-8158 665:1<263 2011 665 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer