Upper littoral rhombognathines (Acari: Halacaridae) from Singapore: description of a new species

Biases and distribution patterns in hard‐bodied microscopic animals (Acari: Halacaridae): Size does not matter, but generalism and sampling effort do

“…This is because most of the studies on marine halacarids in Europe were performed in littoral areas by researchers associated with marine facilities (e.g. Bartsch, 1975, 1976a, 1976b, 1977, 1979, 1980 at Roscoff). Therefore, we expect a decay in species richness as the distance from marine biological stations increases (H1a) but also the number of records and papers associated with each marine station will explain the differences in species richness (H1b).…”

“…This is because most of the studies on marine halacarids in Europe were performed in littoral areas by researchers associated with marine facilities (e.g. Bartsch, 1975, 1976a, 1976b, 1977, 1979, 1980.…”

“…Separating the contributions of species richness differences and replacement to the total beta diversity might reveal distinct underlying processes concealing similarity in composition amongst locations or habitats. For instance, although some halacarid species occur across the Mediterranean, the Black Sea and the Atlantic Ocean (Bartsch, 1989(Bartsch, , 2004a(Bartsch, , 2004b, others are restricted to one of those seas (André, 1939;Bartsch, 1983Bartsch, , 1998. Due to the differences in the distribution area and range amongst those species, we expect to find a strong effect of the marine province and country in which each station is located on the total beta taxonomic diversity and its replacement component (H2a), reflecting the substitution of species with increasing geographical distances.…”

Scanning electron microscopic observations of Copidognathus balakrishnani Chatterjee (Acari: Halacaridae) with notes on species of the Copidognathus balakrishnani group

“…C. lutarius was reported among the turf of A. marina on the east coast of the Burrup Peninsula, Dampier, Western Australia (Bartsch 2003). Bartsch (2006) described C. rhom bognathoideus from algae on sediments, as well as pneumatophores and stems of mangroves in Singapore. C. rhombognathoideus was also reported by Chatterjee et al (2012) from algal turf growing on Rhizophora mangrove pneumatophores at Batu Marang, Brunei Darussalam.…”

New Records of the Copidognathus gibbus Group (Acari, Halacaridae) from Korea, with Descriptions of C. levicostatus n. sp. and C. vicinus

“…The genus Copidognathus Trouessart, 1888 in the family Halacaridae Murray, 1877 is the most diverse and representative mite within marine halacarid [1][2][3][4], comprising approximately 380 valid species known to date [5]. Among them, approximately 160 species are allocated to 13 species groups: the bairdi, balakrishnani, curassaviensis, hartmanni, gibberipes, gibbus, lamellosus, oculatus, ornatus, pulcher, spinula, temaeus, and tricorneatus groups; however, the remaining species have not yet been grouped definitely [6][7][8][9][10][11][12][13][14][15].…”