1,721,198 research outputs found
Gladiolus x hortulanus
No full textGladiolus x hortulanus, anthers. Family Iridaceae, Subclass Liliidae
Tool use in three wrasses: Halichoeres hortulanus, Thalassoma jansenii, and Thalassoma lunare [Dataset]
No full textSupporting data:1. Videos showing anvil use by three wrasse species: Halichoeres hortulanus, Thalassoma jansenii, and Thalassoma lunare. -- 2. Supplementary Information containing a. Detailed description of anvil use videos uploaded b. Description of videos of smaller wrasses unable to attack and handle E. molaris c. List of wrasses found at the site, and observed information on tool use by themPeer reviewe
Tabula Smaragdica
No full textJohannes Garlandius, auch genannt Hortulanus. - Enth. auf S. 79 Die Tabula Smaragdica Hermeti
PARALLELLE LOOPLIJNEN: EEN INTERVIEW MET ROELOF HORTULANUS
No full textRoelof Hortulanus is sinds 1995 verbonden aan het Journal of Social Intervention en neemt dit jaar afscheid van de redactie. We spreken Hortulanus op een zonnige lentedag in bijzondere en nogal onwerkelijke omstandigheden via een beeldbelverbinding. De reden hiervoor is de zogeheten intelligente lock-down die als maatregel is afgekondigd in de Nederlandse aanpak van de Covid-19 epidemie, oftewel de Coronacrisis. Hortulanus is emeritus-hoogleraar ‘Sociale interventies en lokaal sociaal beleid’ aan de Universiteit voor Humanistiek, was directeur van het Landelijk Expertisecentrum Sociale Interventie en schreef vele boeken, artikelen en andere publicaties. Met zijn staat van dienst, zowel in zijn rol als redactielid als daarbuiten als socioloog en methodoloog in het sociaal domein, is dat reden te meer om met hem te reflecteren op het tijdschrift, de ontwikkelingen in het sociaal domein en zijn periode als lid van de redactie
Corallus hortulanus testes histology: morphological and reproductive aspects
No full textAbstract In general snakes show differentiate anatomical, biological and behavioral particularities compared to other species. Basic information about the snakes anatomy, physiology and reproductive biology is scarce in several species, making the reproduction a challenge. Thus, the present work aims to evaluate morphological aspects of the Corallus hortulanus testes, correlating these findings with environmental factors and reproductive aspects. The testes of three specimens of Corallus hortulanus were cut to a thickness of 3μm in microtome, stained with 1% toluidine blue, photo documented and described. Seasonality was observed in the sperm production of Corallus hortulanus, with the presence of mature spermatozoa in the wettest and hottest periods of the year, as well as the largest testicular volume in these periods
Anvil use by three wrasse species: Halichoeres hortulanus, Thalassoma jansenii, and Thalassoma lunare
No full textOver the past few decades, tool use has been described in a variety of animals across taxa. However, there are relatively limited reports and studies of tool use in marine environments. Among marine fish though, labrids have been reported to be proficient at using tools. Here, we describe the first observations of tool use in two species of tropical wrasses—Halichoeres hortulanus (checkerboard wrasse) and Thalassoma jansenii (Jansen’s wrasse)—and the first report of tool use from the wild for the wrasse Thalassoma lunare (Moon wrasse). These observations were made incidentally as part of size-specific predation assays for a small burrow-dwelling sea urchin (Echinostrephus molaris) in the Lakshadweep Archipelago, Indian Ocean. We documented multiple instances of anvil use by the wrasses H. hortulanus, and T. jansenii, and one instance of anvil use by T. lunare. All three species were recorded carrying the assay urchins to a nearby coral or benthic substrate and striking them repeatedly to break off their spines and crack their tests before consuming them. The behaviour was observed multiple times in different wrasse individuals. Also, sea urchin test size was a good predictor of the size of the fish that preyed on them. As naturalists spend more time observing fish in their natural environment, records of tool use in fish are increasing. Often these observations are incidental, yet documenting them carefully is critical, so we can ask larger questions about the evolution and development of animal intelligence. This study adds to observations of predation-associated tool use by fishes expanding reports of this behaviour taxonomically as well as geographically.This work was supported financially and logistically by the National Centre for Biological Sciences (NCBS), Bangalore, The Habitats Trust (THT), Shri A.M.M. Murugappa Chettiar Research Centre, Rohini Nilekani Philanthropies, Cholamandalam Investment and Finance Company Limited, Arvind Dattar, Centre D’Estudis Avançats de Blanes (CEAB, CSIC) and Nature Conservation Foundation (NCF). The authors have no relevant non-financial interests to disclose.Peer reviewe
Corallus hortulanus eating a bat in "Les Nouragues", French Guiana
No full textAmazon Tree Boa (Corallus hortulanus) eating a bat in "Les Nouragues", French Guiana
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Mus hortulanus Nordmann 1840
No full textMus hortulanus Nordmann, 1840. In Demidoff Voy. Russie, 3:45. TYPE LOCALITY: U.S. S. R., N. Caucasus. DISTRIBUTION: Austria; Yugoslavia; trans-Caucasian U.S. S.R. COMMENT: Considered a species distinct from musculus by Marshall and Sage, 1981, Symp. Zool. Soc. Lond., 47: 18.Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Rodentia (Part 5), pp. 504-560 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 532, DOI: 10.5281/zenodo.735303
Ortolanus (Hortulanus): Kommentar zu Hermes' Tabula smaragdina (Fragment) - BSB Clm 27489(d
No full textBrevitalitrus hortulanus
No full textBrevitalitrus hortulanus (Calman, 1912) (Figs 2–6) Talitrus hortulanus Calman, 1912: 133, figs 1–7; Barnard 1960: 16, fig. 1. Talitroides hortulanus: Stephensen 1943: 296, fig. 2. Brevitalitrus hortulanus: Bousfield 1971: 285, fig. 17. Brevitalitrus hortulanus var.: Bousfield 1971: 285. Brevitalitrus hortulanus var. (?): Bousfield 1971: 285. Material examined. Green Island, Taiwan, 22°40′N, 121°30′E, 7 August 1981, 3 females (4–8 mm), NSMT-Cr 21456; same data, 1 female (7 mm), NSMT-Cr 21457; same data, 5 females (5–7 mm), NMNS-6545-003. In Green Island, the present species was found under fallen leaves in the Guanyin-dong (ca. 54 m alt). Description of specimens from Taiwan. Female (7 mm, NSMT-Cr 21457). Eye (Fig. 2) weakly pigmented. Antenna 1 (Fig. 3A) long, peduncular article 3 1.3 times as long as article 2; flagellum 0.8 times as long as peduncle, 6-articulated. Antenna 2 (Fig. 3B) 0.5 times as long as body length; peduncular article 5 subequal in length to or slightly shorter than articles 3 and 4 combined; flagellum 1.4 times as long as peduncle, 17-articulated. Upper lip (Fig. 3C) deeper than wide, ventral margin pilose. Left mandible (Fig. 3D) with 4-dentate lacinia mobilis. Right mandible (Fig. 3E) with tricuspate lacinia mobilis. Lower lip (Fig. 3F) pilose along inner shoulders and margin of central cleft. Maxilla 1 (Fig. 3G, H) with outer plate dentition formula 0-0-3-4-4-3-3-3-3. Maxilla 2 (Fig. 3I, J) with outer plate bearing 6–8 blunt spines on edge (Fig. 3I, bl), 3–4 setulose sharp spines on dorsal side (Fig. 3I, st), and 7–8 brushy sharp spines on ventral side (Fig. 3J, br); inner plate with 7–8 blunt spines on oblique edge, 2–3 brushy sharp spines on ventral side, and 3–4 setulose sharp spines and 2 pappose spines on dorsal side (Fig. 3I, pp). Maxilliped (Fig. 3K, L) with inner plate bearing 3 teeth on distal margin, innermost tooth very small; outer plate with group of dense submarginal spines on ventral side (Fig. 3M) and distal pappose spine on dorsal side (Fig. 3N, pp); palp article 3 with many fine setae on inner margin, inner distal corner slightly produced, with a few spines, ventral surface with 2 long spines distally, and dorsal surface with 2–3 short spines distally; palp article 4 (Fig. 3O) partly fused to article 3, with 4–5 spines apically. Gnathopod 1 (Fig. 4A, B) with coxal plate bearing a few long spines on ventral margin; basis almost parallel-sided, with a few spines on posterior margin; carpus with a few long imbricated spines on lateral surface and posterior margin (Fig. 4B, im), posterodistal part of medial surface covered by tiny setae and with 3 long sheathed spines (Fig. 4B, sh); propodus shorter than carpus, with 5 bifid spines along posterior margin (Fig. 4B, bf), of which distal spine situated medially (Fig. 4C, bf), lateral surface with 3 long sheathed spines submarginally and 3 groups of 2 imbricated spines distally (Fig. 4B, im), medial surface with 3 short sheathed spines (Fig. 4B, sh); dactylus 0.5 times as long as propodus, with short imbricated spine near posterodistal angle of base. Gnathopod 2 (Fig. 4D) with coxal plate gently convex along ventral margin, posterior cusp strongly projecting; basis narrow, convex anteriorly, with several spines on anterior margin; ischium 0.5 times as long as basis; merus and carpus with blister-shaped swelling; propodus subequal in length to carpus; dactylus (Fig. 4E) hooked, with long imbricated spine on base of nail and short imbricated spine on grasping margin. Pereopods 3 and 4 each with coxal plate wider than deep; carpus 3.0 times as long as wide; propodus 1.3 times as long as carpus, distal spine lacking (Fig. 5I, J); dactylus 0.3 times as long as propodus. Pereopod 3 (Fig. 5A) with coxal plate posterior cusp hooked. Pereopod 4 (Fig. 5B) 0.9 times as long as pereopod 3; posterior cusp of coxal plate knob-shaped; dactylus (Fig. 5J) weakly notched. Pereopod 5 (Fig. 5C) 0.9 times as long as pereopod 3; anterior coxal lobe much broader (ca. 2.5 times) and slightly deeper (ca. 1.3 times) than posterior lobe, ventral margin gently curved; basis elliptic, posterior margin weakly serrated; propodus 1.2 times as long as carpus, with minute distal spine (Fig. 5K); dactylus 0.3 times as long as propodus. Pereopods 6 and 7 each with propodus subequal in length to basis, distal spine distinct on dactyl hinge (Fig. 5L, M); dactylus 0.3 times as long as propodus. Pereopod 6 (Fig. 5D) 1.4 times as long as pereopod 3; posterior lobe of coxal plate deeper than wide, ventral margin convex, serrated; basis long oval, posterior margin sparsely spinose, lacking posterodistal lobe; propodus 1.4 times as long as carpus. Pereopod 7 (Fig. 5E) 1.6 times as long as pereopod 3; basis ovate, posterior margin sparsely serrated, posterodistal lobe incised near junction with ischium; propodus 1.5 times as long as carpus, distal spine longer than that of pereopod 6 (Fig. 5M). Coxal gill of gnathopod 2 (Fig. 4D) large, leaf-shaped. Coxal gills of pereopods 3–5 (Fig. 5A–C) long and oval. Coxal gill of pereopod 6 (Fig. 5Q) convoluted, broadened distally, reaching distal margin of basis. Epimeral plates 1–3 each with straight posterior margin, posterodistal corner slightly produced. Epimeral plate 1 (Fig. 6F 1) with ventral margin slightly oblique. Anterodistal corner of epimeral plate 2 (Fig. 6F 2) rounded, ventral margin almost straight. Epimeral plate 3 (Fig. 6F 3) with gently curved ventral margin. Pleopods 1–3 each with 2 coupling hooks on peduncle (Fig. 6E); ramus shorter than peduncle. Pleopod 2 (Fig. 6B) slightly longer and wider than pleopod 1 (Fig. 6A); peduncle lacking marginal plumose setae; inner ramus longer than outer ramus, rami 3-articulated. Pleopod 3 (Fig. 6C, D) 0.6 times as long as pleopod 2; peduncle 1.4 times as wide as that of pleopod 2, outer margins pilose, with plumose seta on distal corner; inner ramus subequal in length to outer ramus, indistinctly articulated (Fig. 6D). Uropod 1 (Fig. 6G) with simple distolateral spine, 0.3 times as long as outer ramus; outer ramus with 2 marginal spines, inner ramus with 3 marginal spines. Uropod 2 (Fig. 6H) 0.5 times as long as uropod 1; outer ramus with marginal spine, inner ramus 1.3 times as long as outer ramus, with 2 marginal spines. Uropod 3 (Fig. 6I) shorter than telson; ramus 0.5 times as long as peduncle, with long spine and minute spine terminally (Fig. 6J). Telson (Fig. 6K) with medial suture-line on dorsal surface, each lobe with bifid spine terminally. Oostegites of gnathopod 2 (Fig. 4D) and pereopods 3–5 (Fig. 5N, O, P) each with 4–5 simple-tipped setae on distal margin. Remarks. Only females were available for examination. This species was originally described by Calman (1912) based on one male (8 mm) and one female (9.5 mm) from the "Tropical Pits" of Kew Gardens in London, U.K. Although the original location is unknown, there is little doubt that the occurrence of this species in London is due to an artificial introduction associated with soil or roots of plants. Since then, this species has been reported from the New Hebrides and Samoa (Stephensen 1943) and the Caroline Islands (Barnard 1960) in the tropical western Pacific region. Bousfield (1971) re-examined the type series of Talitrus hortulanus and the material of Stephensen (1943) and revealed that Stephensen's material from Samoa represented an undescribed species that Bousfield (1971) named B. stephenseni. The specimens from the New Hebrides and the Caroline Islands were referred to a variant of B. hortulanus because of the presence of subtle morphological differences from the type lot (Bousfield 1971). The present specimens from Taiwan agree with the descriptions and the figures of Calman (1912) and Bousfield (1971) except for the following points: (1) pereopods 6 and 7 each with propodus subequal in length to basis (vs propodus about 1.2 times longer than basis); (2) pleopod 2 lacking plumose setae on peduncle (vs with plumose seta); and (3) uropod 1 with 2 marginal spines on outer ramus and with 3 marginal spines on inner ramus (vs with 3 spines on outer ramus and 4 spines on inner ramus). These differences are subtle, and thus it is reasonable to consider that they could be within the range of intraspecific variation. Distribution. Peleliu Island, Palau, and Ton Island, Truk Islands (Barnard 1960); New Hebrides (Stephensen 1943); and Green Island, Taiwan (present study).Published as part of Miyamoto, Hisashi & Morino, Hiroshi, 2012, Taxonomic Studies on the Talitridae (Crustacea: Amphipoda) of Taiwan. V. The Genus Brevitalitrus Bousfield, 1971, pp. 187-200 in Species Diversity 17 (2) on pages 188-193, DOI: 10.12782/sd.17.2.187, http://zenodo.org/record/464931
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