Kiwa is a marine species living in hot water holes and cold springs in the deep sea. After a wonderful snowman, animals are often called "snowman lobster" or "snowman crab". This genus belongs to its family, Kiwaidae, in the superfamily Chirostyloidea.
Kiwa hirsuta discovered in 2005 and Kiwa puravida discovered in 2006 are listed. The third species, commonly known as "Hofkani", was found in the east Scotia ridge and was named after discoverer Kiwa Tyleri, University of Southampton Paul Taylor. Analysis of mitochondrial and nuclear rDNA markers confirmed that it is genetically different from K. hirusuta. The same data shows the difference between the two species of 12 million years ago. In 2011, a deformation similar to East Scotia Ridge was collected at the vent of East Indian West Ridge and West Indian Ridge.
Based on sulfur oxidizing bacteria present on K. Hillstar and new species bristles, they can also feed bacteria in addition to purification. For K. puravida, bacteria have been identified, feeding behavior, and recycling rhythm movement of crabs have been suspected to increase the flow of methane and sulfide (bacterial food) to bacteria. New sexes prefer different temperatures, men like warm water, women who carry eggs prefer the coldest.
Mike Phawson et al Kiwa is a marine male guardian of Maori myth, but Kiwa is named after the "goddess of shells in Polynesian mythology" as Kiwa.
An important issue in Kiwaidae's biogeography is how they can spread from the vent of the Pacific to the vents of ESR and SWIR. The presently known position of kiwidae (Fig. 2), together with the phylogeny present here, indicates that it entered the Atlantic part of the South Atlantic through the Drake passage from the Pacific Ocean. The estimated date range (13.4-25.9 Ma) of the segmentation between the Pacific and the non-Pacific is consistent with this situation, as deep-sea connections in the Drake Strait may occur around 33 Ma.
Biographical geography of the snowman club (Kiwaidae), which recorded the phylogeny of Chirostyloidea (Apomuth: Anomura)
Considering the uncertainties of the affinity of Kiiridae, Eumuididae and Chirostylidae in Chirostyloidea, Mr. The Bayes v.3.2 treadmill method was used to evaluate the surrounding model hypothesis and three alternative a priori phase hypotheses were verified. The topology is assumed as follows: Kiwidae - Ouminaidae Clade, Kiwidae - Kilostaya clay and Yumu - dae - Kilostayae clade. For each topology constraint, we performed two simultaneous analyzes of 2.5 million generations using default settings
Biographical geography of the snowman club (Kiwaidae), which recorded the phylogeny of Chirostyloidea (Apomuth: Anomura)
The purpose of this study is to solve the phylogenetic uncertainty of Chirostyloidea, especially Kiwaidae, by analyzing the ribosomal DNA sequence dataset of the linked 9 genes and the DNA sequence data set encoding the protein for the following purposes It is to be. Earthworm Family; (ii) conducting multiple surveys in the Silos Department; (iii) elucidating the internal lineage of the family Cyperaceae; (iv) the relationship between the differences in the Kiro family and the past constructive and marine events
Biographical geography of the snowman club (Kiwaidae), which recorded the phylogeny of Chirostyloidea (Apomuth: Anomura)
Little is known about the phylogeny of the superfamily Chirostyloidea (Decapoda: Anomura) due to conflicting classification group sampling and disparity between different genes. In order to improve the phylogenetic affinity solution within different families and between different families as well as the difference in date determination using fossil calibration we measured 15 silothyroids including all known snow crab (Kiwaniidae) Present 9 gene data sets to cover. This research supports the unity of Chirostyloidea, and among them, the division between Eumunididae and Kiwaidae-Chirostylidae. All three families had origins in the Middle Cretaceous, but the existing kiwide and most kilostilides began to spread radially from the Eocene. In Kiwaidae, the basal segment between permeable Kiwa puravida and ventilated branches including Kiwa hirsuta and Kiwa spp. Hypothetical penetration found on the ridges of East Scotia and southwestern India - consistent with the evolutionary evolutionary trajectory
Biographical geography of the snowman club (Kiwaidae), which recorded the phylogeny of Chirostyloidea (Apomuth: Anomura)