TY - JOUR
T1 - Tardigrades from iztaccihuatl volcano (trans-mexican volcanic belt), with the description of minibiotus citlalium sp. nov. (eutardigrada: Macrobiotidae)
AU - Dueñas-Cedillo, Alba
AU - Martínez-Méndez, Evelyn
AU - García-Román, Jazmín
AU - Armendáriz-Toledano, Francisco
AU - Ruiz, Enrico Alejandro
N1 - Publisher Copyright:
© 2020 by the authors.
PY - 2020/7
Y1 - 2020/7
N2 - The study of tardigrade diversity in Mexico is at early stage of development, to date, 56 extant species have been reported. To identify the tardigrade fauna associated with mosses in the Iztaccihuatl volcano, we performed a systematic sampling along an altitudinal and multi-habitat gradient. A total of 57 moss samples were collected, 233 adults, 20 exuviae, and 40 free-laid tardigrade eggs were extracted from them. Five species were identified, and three putative species were determined. Diphascon mitrense and Minibiotus sidereus represents new records for Mexico and North America, while Adropion scoticum is a new record for Mexico. Additionally, one new species, Minibiotus citlalium sp. nov. was discovered; it resembles to Min. constellatus, Min. sidereus and Min. pentannulatus by the presence of a similar distribution pattern of star-shaped pores in the dorsal cuticle arranged in 11 transverse rows, which become double in the segments of the legs I-III, and by a very large star-shaped pore (5-6 tips) on each leg of the fourth pair. Minibiotus citlalium sp. nov. differs from other Minibiotus species mainly by macroplacoid length sequence, presence of both small and large star-shaped pores on the external surface on all legs, and by egg processes with inconspicuous ornamentation.
AB - The study of tardigrade diversity in Mexico is at early stage of development, to date, 56 extant species have been reported. To identify the tardigrade fauna associated with mosses in the Iztaccihuatl volcano, we performed a systematic sampling along an altitudinal and multi-habitat gradient. A total of 57 moss samples were collected, 233 adults, 20 exuviae, and 40 free-laid tardigrade eggs were extracted from them. Five species were identified, and three putative species were determined. Diphascon mitrense and Minibiotus sidereus represents new records for Mexico and North America, while Adropion scoticum is a new record for Mexico. Additionally, one new species, Minibiotus citlalium sp. nov. was discovered; it resembles to Min. constellatus, Min. sidereus and Min. pentannulatus by the presence of a similar distribution pattern of star-shaped pores in the dorsal cuticle arranged in 11 transverse rows, which become double in the segments of the legs I-III, and by a very large star-shaped pore (5-6 tips) on each leg of the fourth pair. Minibiotus citlalium sp. nov. differs from other Minibiotus species mainly by macroplacoid length sequence, presence of both small and large star-shaped pores on the external surface on all legs, and by egg processes with inconspicuous ornamentation.
KW - Multi-habitat gradient
KW - New records
KW - Systematic sampling
KW - Water bears
UR - http://www.scopus.com/inward/record.url?scp=85088533868&partnerID=8YFLogxK
U2 - 10.3390/d12070271
DO - 10.3390/d12070271
M3 - Artículo
AN - SCOPUS:85088533868
SN - 1424-2818
VL - 12
JO - Diversity
JF - Diversity
IS - 7
M1 - 271
ER -