Match!
Niklas Dreyer
University of Copenhagen
4Publications
3H-index
16Citations
Publications 4
Newest
Published on May 17, 2018in Journal of Crustacean Biology1.07
Momoko Kobayashi1
Estimated H-index: 1
(Akita Prefectural University),
Yue Him Wong1
Estimated H-index: 1
(Akita Prefectural University)
+ 4 AuthorsKeiju Okano6
Estimated H-index: 6
(Akita Prefectural University)
Published on Mar 1, 2018in Organisms Diversity & Evolution2.14
Niklas Dreyer3
Estimated H-index: 3
(UCPH: University of Copenhagen),
Jens T. Høeg30
Estimated H-index: 30
(UCPH: University of Copenhagen)
+ 3 AuthorsYoichi Yusa4
Estimated H-index: 4
(Nara Women's University)
Mating behaviour between a dwarf male and its hermaphrodite partner was observed for the first time in cirripedes using the androdioecious barnacle Scalpellum scalpellum. Mating between hermaphrodites was also observed. The dwarf males are located on the rim of the mantle cavity of the hermaphrodite partner. When mating, the male extends the penis, which is four times longer than its body. The penis first assumes a straight stance where it is waved around in a searching mode. Upon touching the c...
Published on Jun 1, 2016in Biological Journal of The Linnean Society2.20
Jens T. Høeg30
Estimated H-index: 30
(UCPH: University of Copenhagen),
Yoichi Yusa4
Estimated H-index: 4
(Nara Women's University),
Niklas Dreyer3
Estimated H-index: 3
(UCPH: University of Copenhagen)
How androdioecy (coexistence of hermaphrodites and males) is maintained is still poorly understood. Therefore, sex determination was studied in the androdioecious barnacle Scalpellum scalpellum L. First, 247 cypris larvae from seven broods were investigated for sexual dimorphism in larval morphology and found to be all identical. Second, experiments with cyprids showed that males and hermaphrodites differ distinctly in morphology as soon as 4–5 days after settlement. Third, 14 252 cyprids were a...
1