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Observations on the Biology of the Hermit Crab, Coenobita Compressus H
Rev. Bio!' Tl'Op.. 20(2). 265-273. 1972 Observations on the biology of the hermit crab, Coenobita compressus H. Milne Edwards (Decapoda; Anomura) on the west coast of the Americas* by Eldon E. BaU" t, (Received for pubJi(ation )uly 5, 1972) AnSTRACT: The 5emi·terre,t¡ial hwnit rompl'eJ!llf, IS one erab, Cut/wbitll of tbe most conspicuous supra-littoral invertcbrates on the \Vest coast of the Amtrican UOpiC5. During Stanfvrcl Qctanographic Expeditivn lS. which 5�mplcd lhe intenidal Hora anJ fau"" al variouó points betwc�n Peru ami California, information \Vas (ollcctcd on lhe nahlral history of this species over a \Vide ran,¡;c oí lalitudes and habitatl, Thi5 information, whieh i, sumo mari!�d here, includes detJils on color, distribution, local names, type of .\ hell oc�\lpied, pcrccntage of fcm�k, ovigerous al \'ariou, localities, food and \'JriOllS a:;pteb oi beha,'i()!'. 111e semi·terrcstrial hcrmit crab H. MiJl1C Edwards CQ(J10bit" compl'l'JJtti IS a conspicuous and frcqucntly abundant iohabitant of the supra.Jittoral zone of thc castcrn tropical Pacific fl'OlTI Mcxico to Pcru. However, aside fmm brid mentions in the papers of (2), BRlGHT (1), and I-IAIG, el al. (3), GLASSELL there is little information available 00 the natural histo¡y of this species. ConsiderabJe mformation on the biology of was Coellohifa wmpreJJtiJ obtained as part of a survey oE the hermit crab fauna o[ the castern tropical Pa· cific during Stanford Oceanogra hlC Expcditioo 18 from l\pril to June p 1968. 11115 cxpcdition, abüard lhe RV Te Vega, sampled lhc mteríldal fauna and Íiora from Paila, Perú (50S) to Bahía Magdalena, Ba¡a California (24"N), A mal.' of this cruisc and a station list are prcscnted in Fi¡z.urc 1 ;tnd TabIe 1, rcspcctively. -
Ga7459. B) Polyonyx Pedalis, 1 Female 4.56×4.73 Mm, Mayotte, St
23 Figure 11. A) Polyonyx biunguiculatus, 1 male 2.68×3.23 mm, Mayotte, St. 23, MNHN- Ga7459. B) Polyonyx pedalis, 1 female 4.56×4.73 mm, Mayotte, St. 19, MNHN-Ga7464 (coloration altered by preservative). C) Polyonyx triunguiculatus, 1 male 3.69×4.37, Mayotte, St. 23, MNHN-Ga7438. D) Polyonyx aff. boucheti, 1 ovigerous female 2.20×3.24 mm, Mayotte, St. 12, MNHN-Ga7465. Polyonyx triunguiculatus Zehntner, 1894 Polyonyx triunguiculatus (Figure 11 C) - Haig, 1966: 44 (Mayotte, lagoon, small blocks and coarse sands, coll. A. Crosnier, September 1959, 2 males 2.7 and 3.2 mm, 1 female 1.9 mm, 2 ovigerous females 3.1 and 3.2 mm; same, coarse sands, 50 m, 1 male 3.7 mm, 1 female 3.3 mm, MNHN). - BIOTAS collections, Glorioso, 3-7 May 2009, det. J. Poupin from photo, St. GLOR-2, reef platform and shallow canyons with dead Acropora digitifera head, 7-14 m, specimen MEPA 948; St. GLOR-5, reef slope East side, 17 m, specimen MEPA 1045. - Mayotte, KUW fieldwork November 2009, St. 14, La Prudente bank, 15-17 m, 2 males 3.38×4.13 and 3.31×3.79 mm, 1 ovigerous female 3.29×4.20, 1 juvenile broken, MNHN-Ga7436; St. 17, North reef, 22 m, 1 male 3.43×3.94, 1 ovigerous female 3.10×3.97 mm, MNHN-Ga7437; St. 23, Choizil pass ‘Patate à Teddy’, 15-30 m, 1 male 3.69×4.37, 1 female 2.72×3.12 mm, MNHN-Ga7438; St. 25, islet M'tzamboro, 15-20 m, 1 ovigerous female 3.46×4.45 mm, 1 female 2.74×3.06 mm, 2 ovigerous females 2.89×3.44 and 3.40×3.99 mm, 1 female not measured, MNHN-Ga7439; St. -
Shell Resource Partitioning As a Mechanism of Coexistence in Two Co‑Occurring Terrestrial Hermit Crab Species Sebastian Steibl and Christian Laforsch*
Steibl and Laforsch BMC Ecol (2020) 20:1 https://doi.org/10.1186/s12898-019-0268-2 BMC Ecology RESEARCH ARTICLE Open Access Shell resource partitioning as a mechanism of coexistence in two co-occurring terrestrial hermit crab species Sebastian Steibl and Christian Laforsch* Abstract Background: Coexistence is enabled by ecological diferentiation of the co-occurring species. One possible mecha- nism thereby is resource partitioning, where each species utilizes a distinct subset of the most limited resource. This resource partitioning is difcult to investigate using empirical research in nature, as only few species are primarily limited by solely one resource, rather than a combination of multiple factors. One exception are the shell-dwelling hermit crabs, which are known to be limited under natural conditions and in suitable habitats primarily by the avail- ability of gastropod shells. In the present study, we used two co-occurring terrestrial hermit crab species, Coenobita rugosus and C. perlatus, to investigate how resource partitioning is realized in nature and whether it could be a driver of coexistence. Results: Field sampling of eleven separated hermit crab populations showed that the two co-occurring hermit crab species inhabit the same beach habitat but utilize a distinct subset of the shell resource. Preference experiments and principal component analysis of the shell morphometric data thereby revealed that the observed utilization patterns arise out of diferent intrinsic preferences towards two distinct shell shapes. While C. rugosus displayed a preference towards a short and globose shell morphology, C. perlatus showed preferences towards an elongated shell morphol- ogy with narrow aperture. Conclusion: The two terrestrial hermit crab species occur in the same habitat but have evolved diferent preferences towards distinct subsets of the limiting shell resource. -
An Illustrated Key to the Malacostraca (Crustacea) of the Northern Arabian Sea. Part VI: Decapoda Anomura
An illustrated key to the Malacostraca (Crustacea) of the northern Arabian Sea. Part 6: Decapoda anomura Item Type article Authors Kazmi, Q.B.; Siddiqui, F.A. Download date 04/10/2021 12:44:02 Link to Item http://hdl.handle.net/1834/34318 Pakistan Journal of Marine Sciences, Vol. 15(1), 11-79, 2006. AN ILLUSTRATED KEY TO THE MALACOSTRACA (CRUSTACEA) OF THE NORTHERN ARABIAN SEA PART VI: DECAPODA ANOMURA Quddusi B. Kazmi and Feroz A. Siddiqui Marine Reference Collection and Resource Centre, University of Karachi, Karachi-75270, Pakistan. E-mails: [email protected] (QBK); safianadeem200 [email protected] .in (FAS). ABSTRACT: The key deals with the Decapoda, Anomura of the northern Arabian Sea, belonging to 3 superfamilies, 10 families, 32 genera and 104 species. With few exceptions, each species is accompanied by illustrations of taxonomic importance; its first reporter is referenced, supplemented by a subsequent record from the area. Necessary schematic diagrams explaining terminologies are also included. KEY WORDS: Malacostraca, Decapoda, Anomura, Arabian Sea - key. INTRODUCTION The Infraorder Anomura is well represented in Northern Arabian Sea (Paldstan) (see Tirmizi and Kazmi, 1993). Some important investigations and documentations on the diversity of anomurans belonging to families Hippidae, Albuneidae, Lithodidae, Coenobitidae, Paguridae, Parapaguridae, Diogenidae, Porcellanidae, Chirostylidae and Galatheidae are as follows: Alcock, 1905; Henderson, 1893; Miyake, 1953, 1978; Tirmizi, 1964, 1966; Lewinsohn, 1969; Mustaquim, 1972; Haig, 1966, 1974; Tirmizi and Siddiqui, 1981, 1982; Tirmizi, et al., 1982, 1989; Hogarth, 1988; Tirmizi and Javed, 1993; and Siddiqui and Kazmi, 2003, however these informations are scattered and fragmentary. In 1983 McLaughlin suppressed the old superfamily Coenobitoidea and combined it with the superfamily Paguroidea and placed all hermit crab families under the superfamily Paguroidea. -
Chumbe Island Coral Park Conservation and Education Status Report 2013
Chumbe Island Coral Park Conservation and Education Status Report 2013 Zanzibar, Tanzania Index Foreword………………………………………………………………………………… 3 Part II: Environmental Education……………………………………………………... 25 Introduction CHICOP…………………………………………………………………... 4 Management Plan 2006-2016…………………………………………………… 26 Chumbe Field Excursions………………………………………………………… 27 Part I: Conservation Programs………………………………………………………. 5 Educational Outcomes……………………………………………………………. 28 Management Plan 2006 – 2016…………………………………………………. 6 The Chumbe Challenge………………………………………………………….. 29 Key Values of the MPA…………………………………………………………… 7 Community Outreach …………………………………………………………….. 30 Chumbe Reef Sanctuary (CRS) ………………………………………………… 8 Island Ranger Training……………………………………………………………. 31 Borders of the CRS ………………………………………………………………. 9 Chumbe aims Zero Waste………………………………………………………... 32 Tresspassing ……………………………………………………………………… 10 Celebration of International Events……………………………………………… 33 Fauna in the CRS…………………………………………………………………. 11 Monitoring Programs……………………………………………………………… 12 Acknowledgements……………………………………………………………………... 34 Coral Reef Monitoring…………………………………………………………….. 13 References………………………………………………………………………………... 35 Monitoring results: Fish communities ………………………......……………… 14 Appendix: Species Lists……………………………………………………………….. 36 Monitoring results: Sea urchins …………………………………………………. 15 Monitoring results: Crown-of-thorns starfish …………………………………… 16 Seagrass monitoring……………………………………………………………… 17 Closed Forest Habitat (CFH) ……………………………………………………. 18 Ader’s Duiker………………………………………………………………………..19 Coconut -
Coenobita Clypeatus in the Terrestrial Hermit Crab Transition
Downloaded from rspb.royalsocietypublishing.org on June 6, 2012 Transition from sea to land: olfactory function and constraints in the terrestrial hermit crab Coenobita clypeatus Anna-Sara Krång, Markus Knaden, Kathrin Steck and Bill S. Hansson Proc. R. Soc. B published online 6 June 2012 doi: 10.1098/rspb.2012.0596 Supplementary data "Data Supplement" http://rspb.royalsocietypublishing.org/content/suppl/2012/05/30/rspb.2012.0596.DC1.h tml References This article cites 31 articles, 6 of which can be accessed free http://rspb.royalsocietypublishing.org/content/early/2012/05/30/rspb.2012.0596.full.ht ml#ref-list-1 P<P Published online 6 June 2012 in advance of the print journal. This article is free to access Subject collections Articles on similar topics can be found in the following collections behaviour (800 articles) evolution (1211 articles) neuroscience (154 articles) Receive free email alerts when new articles cite this article - sign up in the box at the top Email alerting service right-hand corner of the article or click here Advance online articles have been peer reviewed and accepted for publication but have not yet appeared in the paper journal (edited, typeset versions may be posted when available prior to final publication). Advance online articles are citable and establish publication priority; they are indexed by PubMed from initial publication. Citations to Advance online articles must include the digital object identifier (DOIs) and date of initial publication. To subscribe to Proc. R. Soc. B go to: http://rspb.royalsocietypublishing.org/subscriptions Downloaded from rspb.royalsocietypublishing.org on June 6, 2012 Proc. -
Population Ecology of the Land Hermit Crab Coenobita Rugosus 31 Nat
POPULATION ECOLOGY OF THE LAND HERMIT CRAB COENOBITA RUGOSUS 31 NAT. HIST. BULL. SIAM. SOC. 60(1): 31–51, 2014 POPULATION ECOLOGY OF THE LAND HERMIT CRAB COENOBITA RUGOSUS (ANOMURA, COENOBITIDAE) AT CAPE PANWA, PHUKET ISLAND, ANDAMAN COAST OF THAILAND Thanakhom Bundhitwongrut 1,2**, Kumthorn Thirakhupt 2 and Art-ong Pradatsundarasar 2* ABSTRACT The population structure, density, dispersion, sex ratio, diet and reproductive activity of Coenobita rugosus at Cape Panwa, Phuket Island, Andaman Coast of Thailand were investigated from April 2011 to March 2012. Crabs were collected monthly by hand by multiple quadrat sampling. Tendency of unimodality of annual size frequency distributions were observed for males, non-ovigerous females, and ovigerous females. Major chela length was determined quantitatively as a secondary sexual character (larger in males) for the first time in terrestrial hermit crabs. The average density of C. rugosus during the study period was 6.98 ± 0.36 crabs/m2. Dispersion of males and non-ovigerous females of C. rugosus was clumped, whereas ovigerous females were distributed uniformly in most sampling months. The overall sex ratio was male-biased (1:0.86 male:female). Nevertheless, the monthly and size class sex ratios were close to the expected 1:1 ratio. Individuals of C. rugosus were observed to consume 16 plant species, mostly decomposing leaves and flowers, but three species of animal carcasses including one case of cannibalism were noted. Reproduction of C. rugosus occurred throughout the year with the highest percentage of ovigerous females in April and September (31.2% and 31.6%, respectively). The characteristics of C. rugosus living Cape Panwa, Phuket Island are consistent with those of hermit crabs inhabiting other constant tropical environments. -
Larval Growth, Development and Duration in Terrestrial Hermit Crabs
Vol. 1: 93–107, 2015 SEXUALITY AND EARLY DEVELOPMENT IN AQUATIC ORGANISMS Published online February 25 doi: 10.3354/sedao00010 Sex Early Dev Aquat Org OPENPEN ACCESSCCESS Larval growth, development and duration in terrestrial hermit crabs Katsuyuki Hamasaki1,*, Saori Kato1, Yu Murakami1, Shigeki Dan2, Shuichi Kitada1 1Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Konan, Minato, Tokyo 108-8477, Japan 2Tamano Laboratory, National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research Agency, Tamano, Okayama 706-0002, Japan ABSTRACT: We investigated patterns of larval growth and development in terrestrial hermit crabs of the family Coenobitidae (genera Coenobita and Birgus). Larvae of 5 species (C. cavipes, C. purpureus, C. rugosus, C. violascens, and B. latro) were cultured individually at ~28°C, and their moulting, growth and developmental duration were analysed in conjunction with published data for coenobitid species (C. brevimanus, C. cavipes, C. clypeatus, C. compressus, C. purpureus, C. rugosus, C. scaevola, C. variabilis, and B. latro). Coenobitid crabs metamorphosed into mega- lopae after 2 to 7 zoeal stages, and intraspecific variability in developmental pathways (number of zoeal stages) was observed in 6 out of 10 species. Interspecific variability in body lengths was large at hatching but reduced in megalopae. Linear growth equations (y = a + bx) between num- ber of moults (x) and body length (y) in the zoeal stages were determined, parameters a -
Terrestrial Hermit Crabs (Anomura: Coenobitidae) As Taphonomic Agents in Circum-Tropical Coastal Sites
University of Wollongong Research Online Faculty of Science - Papers (Archive) Faculty of Science, Medicine and Health 2012 Terrestrial hermit crabs (Anomura: Coenobitidae) as taphonomic agents in circum-tropical coastal sites Katherine Szabo University of Wollongong, [email protected] Follow this and additional works at: https://ro.uow.edu.au/scipapers Part of the Life Sciences Commons, Physical Sciences and Mathematics Commons, and the Social and Behavioral Sciences Commons Recommended Citation Szabo, Katherine: Terrestrial hermit crabs (Anomura: Coenobitidae) as taphonomic agents in circum- tropical coastal sites 2012, 931-941. https://ro.uow.edu.au/scipapers/4604 Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library: [email protected] Terrestrial hermit crabs (Anomura: Coenobitidae) as taphonomic agents in circum-tropical coastal sites Abstract Hermit crabs are ever alert for more suitable shells to inhabit, but what this may mean for coastal shell middens has rarely been considered. Here, the impact of the most landward-based of hermit crab families, the tropical Coenobitidae, upon archaeological shell-bearing deposits is assessed using a case study: the Neolithic Ugaga site from Fiji. At Ugaga, hermit crabs were found to have removed the majority of shells from the midden and had deposited their old, worn shells in return. The behavioural ecology of genus Coenobita suggests a mutualistic interaction whereby humans make available shell and food resources to hermit crabs, which in turn provide a site cleaning service by consuming human and domestic waste. Diagnostic indicators of terrestrial hermit crab wear patterns on gastropod shells are outlined and the conditions under which extensive ‘hermitting’ of shell midden deposits may occur are investigated. -
Landeinsiedlerkrebse
http://www.landeinsiedlerkrebs-forum.de/ präsentiert: Landeinsiedlerkrebse Bestimmung, Pflege, Fütterung, Terrarieneinrichtung und Nachzuchtratschläge Eine Zusammenfassung von: Daniela Bolz Stand: April 2015 Lieber Leser, dieses eBook entstand aus den gesammelten Erfahrungen der Forengemeinde des Landeinsiedlerkrebs-Forums. Es soll Haltern oder an diesen Tieren interessierten Personen dazu dienen, eine Übersicht darüber zu bekommen, was für die durchaus anspruchsvolle Haltung dieser Tiere nötig ist. Dieses eBook wird kostenlos zur Verfügung gestellt! Es ist erlaubt, das eBook kostenlos weiter zugeben. Gewerblicher Vertrieb ist nicht gestattet! Da die Texte und Bilder von Forenmitgliedern stammen und hier nach Absprache zusammengetragen wurden, obliegt das Urheberrecht einzelner Passagen und Bilder weiter dem jeweiligen Verfasser im Forum. Ich bedanke mich hiermit bei allen, die dabei geholfen haben im Forum ausreichend Wissen zusammenzutragen. Und nun viel Vergnügen in der Welt der Landeinsiedlerkrebse! Daniela Bolz (Forenname: Dany) 2 Inhaltsverzeichnis: 1. Wissenswertes über Landeinsiedlerkrebse........................5 1.1. Natürlicher Lebensraum.............................................5 1.2. Systematik.................................................................7 1.3. Körperbau..................................................................7 1.4. Größe.......................................................................10 1.5. Alter und Wachstum.................................................11 2. Artenbestimmung............................................................12 -
Terrestrial Hermit Crabs (Anomura: Coenobitidae) As Taphonomic Agents in Circum-Tropical Coastal Sites Katherine Szabo University of Wollongong, [email protected]
University of Wollongong Research Online Faculty of Science - Papers (Archive) Faculty of Science, Medicine and Health 2012 Terrestrial hermit crabs (Anomura: Coenobitidae) as taphonomic agents in circum-tropical coastal sites Katherine Szabo University of Wollongong, [email protected] Publication Details Szabo, K. (2012). Terrestrial hermit crabs (Anomura: Coenobitidae) as taphonomic agents in circum-tropical coastal sites. Journal of Archaeological Science, 39 (4), 931-941. Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library: [email protected] Terrestrial hermit crabs (Anomura: Coenobitidae) as taphonomic agents in circum-tropical coastal sites Abstract Hermit crabs are ever alert for more suitable shells to inhabit, but what this may mean for coastal shell middens has rarely been considered. Here, the impact of the most landward-based of hermit crab families, the tropical Coenobitidae, upon archaeological shell-bearing deposits is assessed using a case study: the Neolithic Ugaga site from Fiji. At Ugaga, hermit crabs were found to have removed the majority of shells from the midden and had deposited their old, worn shells in return. The behavioural ecology of genus Coenobita suggests a mutualistic interaction whereby humans make available shell and food resources to hermit crabs, which in turn provide a site cleaning service by consuming human and domestic waste. Diagnostic indicators of terrestrial hermit crab wear patterns on gastropod shells are outlined and the conditions under which extensive ‘hermitting’ of shell midden deposits may occur are investigated. The ba ility to recognise hermit crab modification of shells is considered not only important for archaeomalacologists analysing tropical shell deposits, but also for field archaeologists wishing to select suitable shell samples for radiocarbon dating. -
Reappraisal of Hermit Crab Species (Crustacea: Anomura: Paguridea) Reported by Camill HELLER in 1861, 1862 and 1865
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Annalen des Naturhistorischen Museums in Wien Jahr/Year: 2001 Band/Volume: 103B Autor(en)/Author(s): Dworschak Peter C., McLaughlin Patsy A. Artikel/Article: Reappraisal of hermit crab species (Crustacea: Anomura: Paguridea) reported by Camill HELLER in 1861, 1862 and 1865. 135-176 ©Naturhistorisches Museum Wien, download unter www.biologiezentrum.at Ann. Naturhist. Mus. Wien 103 B 135- 176 Wien, Dezember 2001 Reappraisal of hermit crab species (Crustacea: Anomura: Paguridea) reported by Camill Heller in 1861,1862 and 1865 P.A. McLaughlin1 & P.C. Dworschak2 Abstract Redescriptions based on the type material are presented for 11 species of hermit crabs described as new by Camill Heller (HELLER 1861a, c, 1862, 1865): Coenobita violascens HELLER, 1862, Diogenes avarus HELLER, 1865 - for which a lectotype is designated, Diogenes senex HELLER, 1865, Pagurus varipes HELLER, 1861 [= Dardanus tinctor (FORSKÂL, 1775)], Pagurus depressus HELLER, 1861 [= Dardanus lago- podos (FORSKAL, 1775)], Calcinus rosaceus HELLER, 1861, Calcinus nitidus HELLER, 1865, Clibanarius carni/ex HELLER, 1861, Clibanarius signatus HELLER, 1861, Paguristes barbatus (HELLER, 1862) and Paguristes ciliatus HELLER, 1862. For 7 of those, detailed figures are provided. In addition, the material from the Red Sea along with the hermit crabs obtained during the circumnavigation of the earth by the fri- gate 'Novara' and identified by