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A new species of Tardigrada (Eutardigrada : Macrobiotidae) from Iberian peninsula and Canary Islands (Spain)
No full textMinibiotus gumersindoi n. sp. is described. This species was collected on a granite mountain range in Sierra de Guadarrama ( Bustarviejo valley, Embalse de la Jarosa and Cercedilla, Madrid, Spain) and on a volcanic island in Parque Natural Caldera de Taburiente ( La Palma, Canary Islands, Spain). This new species is characterized by a unique set of characters in the genus: the presence of large round pores in the body and a larger round pore at the distal part of each leg. New records of several known species, for Madrid, Canary Islands and/or the Iberian Peninsula are given
Minibiotus gumersindoi Guil & Guidetti, 2005, n. sp.
No full textMinibiotus gumersindoi n. sp. Diagnosis Cuticle with transversal bands of large and round pores, a very large round pore close to the end of each leg; granulation on legs not visible; three round macroplacoids of the same size and a solid and distinct microplacoid; slender claws with short but evident accessory points and smooth lunules. Description Body length 162.0 m (Tables 1–2), colourless. Eyes not visible, probably lost due to mounting medium action (see Remarks). Cuticle with transverse bands of round and large pores around the body (Figure 1). Pores larger on the head region. A very large and round pore present close to the claws on external side of all legs (pore diameter = 2.0% of body length; Figures 1, 2 A; Tables 1–2). In some legs, three or five smaller pores forming a triangle or pentagon figure present over the large round pore (Figure 2 A). Buccal armature and transversal ridges not visible at light microscope. Buccal tube long (19.8 µm) and narrow (1.2 µm) (Tables 1–2) and with double curvature (Figure 2 B). Stylet support inserted at 55.0% of buccal tube length (Tables 1–2). Pharyngeal bulb round (Tables 1–2) with large, round apophyses, three round macroplacoids of similar size (Figure 2 B) and solid, and small but distinct microplacoid (Figures 1, 2 B). Macroplacoid row: 5.4 m (27.5 % of buccal tube length; Table 1). Claws slender (main branch of fourth pair of claws 4.9 m long) with long secondary branches (Figure 2 C). Short but well developed accessory points on main branches present (Figure 2 C). Lunules small, smooth and thin in all claws (Figure 2 C). Eggs unknown. Etymology The species is named in memory of Mr. Gumersindo Guil Valverde, Dr. Guil’s grandfather. Type locality Moss on rock, in oak forest at 1098 m a.s.l. in Bustarviejo Valley (Madrid, Spain; UTM 30 T0437017 4521195). Repositories The holotype and paratype are deposited in the noninsect invertebrate collection of National Museum of Natural Science of Madrid (Consejo Superior de Investigaciones Científicas, CSIC) (collection number: 23.00/ 1). Remarks Cuticle transverse bands are not well identifiable in the paratype and in some specimens of west Madrid and Canary Islands. Eyes are visible in specimens of Minibiotus gumersindoi n. sp. from west Madrid and Canary Islands. Differential diagnosis Minibiotus gumersindoi n. sp. differs from all the other species of the genus for the presence of a very large pore in the external distal part of the leg and for a set of large pores in the proximal part of the leg. In particular Minibiotus gumersindoi n. sp. differs from other similar species (Table 3) for: the presence of large and almost regular rounded pores: irregular in M. bisoctus (Horning, Schuster & Grigarick), M. ethelae Claxton, M. furcatus (Ehrenberg), M. stuckenbergi (Dastych, Ryan & Watkins), and M. vinciguerrae Binda & Pilato, and small in M. keppelensis Claxton, M. poricinctus Claxton and M. ramazzottii Binda & Pilato; the absence of granulation on legs: present in M. bisoctus (Horning, Schuster & Grigarick), M. keppelensis Claxton, M. poricinctus Claxton, M. stuckenbergi (Dastych, Ryan & Watkins), M. vinciguerrae Binda & Pilato, and M. weinerorum (Dastych); the absence of cuticle thickened in caudal region: present in M. ethelae Claxton; the presence of three macroplacoids; two in M. scopulus Claxton; the presence of smooth lunules on the fourth leg pair: with teeth in M. stuckenbergi (Dastych, Ryan & Watkins). Habitat In Cercedilla, specimens were found in rock mosses in a xerophilus landscape (xerophilus bushes: thyme, rosemary and broom) at 1228 m a.s.l.. In Embalse de la Jarosa the new species has been found in rock mosses in a pine forest (of Pinus nigra Arnold) at 1107 m a.s.l. and in the Canary Islands in rock mosses in a pine forest (of Pinus canariensis Smith) at 1460 m a.s.l. Population variability We consider the specimens collected in the different localities belonging to the same species due to the well defined morphological characters shared by these specimens. Due to the relatively small number of specimens collected in the different localities, we did not performed a statistical analyses of the morphometric data. Anyway, we report the morphometric differences identified in the populations. Morphometric differences appear when the Madrid populations (Table 1 from M 1 to M 2, type locality population, and from M 3 to M 7, west Madrid populations) and the Caldera de Taburiente (Canary Islands) population (Table 1 from CT 1 to CT 9) are compared. Body length, stylet support insertion length and secondary branch of claws in fourth pair of legs are larger in the Caldera de Taburiente (Canary Islands) population than in the Madrid (type locality) and the west Madrid populations (Table 2), while main branch of claws in fourth pair of legs is larger in the Madrid populations than in the Caldera de Taburiente (Canary Islands) population (Table 2). The Caldera de Taburiente population (Canary Islands) (from pine forest) has the bigger distal leg pore diameters, followed by the west Madrid population (from xerophilous and pine forest) and the type locality population (from oak forest) (Table 2). Buccal tube length and body pores diameters are larger in the type locality population than in the west Madrid and the Caldera de Taburiente (Canary Islands) populations, where their values are similar. Body length and pharyngeal width are shorter in the type locality population than in the others (Table 2). Other species of tardigrades There is no other tardigrade species that occurs always in all the four localities where we have found Minibiotus gumersindoi n. sp. Echiniscus trisetosus Cuénot is present in three of the four localities (Bustarviejo valley, Cercedilla and Caldera de Taburiente). We present other tardigrade species found together with the new species in Table 4, where information is given on which species are new records for Madrid, Canary Islands and/or the Iberian Peninsula.Published as part of Guil, Noemi & Guidetti, Roberto, 2005, A new species of Tardigrada (Eutardigrada: Macrobiotidae) from Iberian Peninsula and Canary Islands (Spain), pp. 1-11 in Zootaxa 889 on pages 3-8, DOI: 10.5281/zenodo.17092
Guil — Guillestre
No full textDauzat Albert. Guil — Guillestre. In: Revue Internationale d'Onomastique, 3e année N°2, juin 1951. p. 82
Observations on the "tenuis group" (Eutardigrada, Macrobiotidae) and description of a new Macrobiotus species
No full textA new species of the tardigrade genus Macrobiotus is described. The species, designated M. ciprianoi n.sp., was isolated from a mixture of Provence broom leaf litter and mosses, and from rock mossescollected in the Sierra de Guadarrama, Madrid (Spain). Given that Macrobiotus ciprianoi n. sp. sharesseveral characters to members of the ‘‘tenuis group’’, we assessed the taxonomic homogeneity of thegroup. The new species differs from those of the ‘‘tenuis group’’ according to a unique set ofcharacters related with claw shape, features of the buccal-pharyngeal apparatus, and egg morphology.Our analysis of holotypes and/or paratypes of ‘‘tenuis group’’ species and other Macrobiotus specieswith similar characters (M. bondavallii and M. caelicola) reflects the heterogeneity of this group ofspecies as currently described
High level of phenotypic homoplasy amongst eutardigrades (Tardigrada) based on morphological and total evidence phylogenetic analyses
No full textMuch of what is known about the phylogenetic relationships of the neglected phylum Tardigrada comes from
molecular data, rather than from morphology-based phylogenetic studies. Several molecular phylogenies have been
proposed, but morphological and total evidence phylogenetic approaches are scarce. We performed the first
morphological phylogeny (based on maximum parsimony and Bayesian inference) including all genera from the
class Eutardigrada. Furthermore, we carried out a total evidence approach adding molecular information available
in public databases. We compared the morphological and total evidence phylogenies with current molecular
hypotheses and Eutardigrada classifications, which our results partially support. These classifications were
supported only when homoplastic characters (related to the buccopharyngeal apparatus) were excluded. The
importance of morphological phylogenies is discussed as well as their utility for questioning current phylogenetic
hypotheses and classifications based solely on molecular information. Lastly, we propose evolutionary hypotheses
about eutardigrade phylogenetic relationships that should be tested based on our morphological results
Guil et Guillestre
No full textDauzat Albert. Guil et Guillestre. In: Revue Internationale d'Onomastique, 2e année N°3, Septembre 1950. p. 161
Flore de la vallée du Guil
No full textCarié Paul. Flore de la vallée du Guil. In: Bulletin mensuel de la Société linnéenne de Lyon, 32ᵉ année, n°6, juin 1963. pp. 172-174
La crue du Guil, les 14 et 15 mai 1948
No full textVeyret Paul. La crue du Guil, les 14 et 15 mai 1948. In: Revue de géographie alpine, tome 36, n°4, 1948. pp. 611-613
La flore de la vallée moyenne du Guil
No full textQuéney Auguste. La flore de la vallée moyenne du Guil. In: Bulletin mensuel de la Société linnéenne de Lyon, 27ᵉ année, n°9, novembre 1958. pp. 252-257
Physicochemical and nutritional characteristics of Béni Guil lamb meat raised in eastern Morocco
No full textpeer reviewedBACKGROUND: The Béni Guil sheep is the main ovine breed that dominates livestock farming in the semi-arid region of eastern Morocco. No previous data is available on the quality of Béni Guil PGI (Protected Geographical Indication) lamb meat raised on the natural pasture of this area.
OBJECTIVE: This study aims to provide the physicochemical and nutritional characteristics of Béni Guil PGI lamb meat.
METHODS: Béni Guil PGI lamb meat was analysed for its quality parameters, fatty acid composition and amino acid profile.
RESULTS: Results show that the Béni Guil PGI lamb meat has a significant juiciness (high water holding capacity), a marked tenderness (low collagen content) and a bright red colour. Longissimus lumborum muscle from Béni Guil PGI lambs contains 25.72% dry matter, including 19.43% protein, 5.14% fat, and 0.94% minerals. Gas chromatography-flame ionisation detection, for fatty acid analysis, revealed 49.45% saturated fatty acids (SFA), 38.48% monounsaturated fatty acids (MUFA) and 12.4% polyunsaturated fatty acids (PUFA). The UFA:SFA and n-6:n-3 PUFA ratios were 1.04 and 3.78, respectively, and were comparable to those recommended for a balanced diet. The amino acid analysis, allowed the identification of eight essential amino acids. The chemical index and the protein digestibility-corrected amino acid score values were 132 and 124, respectively.
CONCLUSION: The results of this study indicate that the Béni Guil PGI meat has nutritional values in accordance with the nutritional recommendations and specific to the feeding system based mainly on grazing.WBI-Project 1-6, “2015-2017
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