DOCSLIB.ORG

Adaptive Radiation and Hybridization in Wallace's Dreamponds: Evidence from Sailfin Silversides in the Malili Lakes of Sulawes

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Adaptive Radiation and Hybridization in Wallace's Dreamponds: Evidence from Sailfin Silversides in the Malili Lakes of Sulawes Proc. R. Soc. B (2006) 273, 2209–2217 doi:10.1098/rspb.2006.3558 Published online 22 June 2006 Adaptive radiation and hybridization in Wallace’s Dreamponds: evidence from sailfin silversides in the Malili Lakes of Sulawesi Fabian Herder1,4,*, Arne W. Nolte2, Jobst Pfaender1, Julia Schwarzer1, Renny K. Hadiaty3 and Ulrich K. Schliewen4 1Sektion Ichthyologie, Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160, 53113 Bonn, Germany 2Institute for Genetics, University of Cologne, Weyertal 121, 50931 Ko¨ln, Germany 3Ichthyology Laboratory, Division of Zoology, Research Center for Biology, Indonesian Institute of Sciences (LIPI), Jl. Raya Bogor Km 46, Cibinong 16911, Indonesia 4Department of Ichthyology, Bavarian State Collection of Zoology (ZSM), Mu¨nchhausenstr 21, 81247 Mu¨nchen, Germany Adaptive radiations are extremely useful to understand factors driving speciation. A challenge in speciation research is to distinguish forces creating novelties and those relevant to divergence and adaptation. Recently, hybridization has regained major interest as a potential force leading to functional novelty and to the genesis of new species. Here, we show that introgressive hybridization is a prominent phenomenon in the radiation of sailfin silversides (Teleostei: Atheriniformes: Telmatherinidae) inhabiting the ancient Malili Lakes of Sulawesi, correlating conspicuously with patterns of increased diversity. We found the most diverse lacustrine species-group of the radiation to be heavily introgressed by genotypes originating from streams of the lake system, an effect that has masked the primary phylogenetic pattern of the flock. We conclude that hybridization could have acted as a key factor in the generation of the flock’s spectacular diversity. To our knowledge, this is the first empirical evidence for massive reticulate evolution within a complex animal radiation. Keywords: hybridization; introgression; adaptive radiation; Malili Lakes; Telmatherinidae; amplified fragment length polymorphism 1. INTRODUCTION processes, it is only recently that hybridization has been Introgressive hybridization can play a significant role in proposed as a major explanatory factor for the generation evolution by creating novel gene combinations, which in of diversity (Seehausen 2004). Indeed, recent molecular turn may create key innovations leading to expansions of phylogenetic evidence shows that introgression and hybrid niche, habitat or range (Gilbert 2003; Rieseberg et al. 2003; speciation has occurred within species flocks (Barrier et al. Grant et al. 2004). Although it remains debatable whether 1999; Ru¨ber et al. 2001; Salzburger et al.2002; Shaw 2002; introgressive hybridization and hybrid speciation contrib- Smith et al.2003; Schliewen & Klee 2004; Sullivan et al. ute significantly to the generation of global species diversity 2004; Joyce et al. 2005). However, unequivocal evidence (Arnold 1997; Dowling & Secor 1997; Barton 2001), most for large scale hybridization events that are related to the authors agree that overall fitness of introgressed popu- evolution of megadiversity is still lacking. lations may reach its highest levels in novel habitats, when Reasons for the deficiency in knowledge concerning the selection intensity against introgressed alleles is low and the evolutionary role of hybridization lie partially in methodo- evolution along new evolutionary trajectories is facilitated logical problems (Seehausen 2004). However, the ampli- (Grant et al. 2004; Nolte et al. 2005). fied fragment length polymorphism (AFLP) technique (Vos Adaptive radiations are prime examples for the et al. 1995) constitutes a powerful tool to investigate ‘explosive’ genesis of biodiversity in novel habitats such phylogenetic relationships within species flocks (Albertson as newly formed lakes. Some of these harbour species et al. 1999; Allender et al. 2003; Schliewen & Klee 2004; flocks containing hundreds of endemic species, e.g. the Sullivan et al.2004) with the advantage to provide cichlids of ‘Darwin’s Dreamponds’ (Goldschmidt 1998), numerous unlinked nuclear loci. These can be used to test i.e. the East African Great Lakes (Turner et al.2001; hypotheses of hybridization by screening for homoplastic Kocher 2004). Although these systems have served for effects in phylogenetic trees (Seehausen 2004;see§2d ). A second major problem is the need to study ideally all decades as natural laboratories for the study of speciation potential partners of the hybridization scenario in order to quantify the contribution of introgressive hybridization to * Author for correspondence ([email protected]). speciation processes. To overcome the problem of com- plexity, radiations with lower species richness and less The electronic supplementary material is available at http://dx.doi. org/10.1098/rspb.2006.3558 or via http://www.journals.royalsoc.ac. spatial complexity (McKaye et al. 2002; Schliewen & Klee uk. 2004) or single pairs of sympatric species (Pigeon et al. Received 23 December 2005 2209 q 2006 The Royal Society Accepted 21 March 2006 2210 F. Herder and others Radiation and hybridization 3 2 4 stream Nuha 1 stream West Lake Matano 6 5 7 River Petea 100 km Lake Mahalona Lake Lontoa 8 River Tominanga 13 River Larona 12 9 Lake Towuti depth (m) –100 –150 Lake Masapi 10 –200 –300 –400 11 –500 –550 10 km 14 Figure 1. The Malili Lakes system and its endemic sailfin silversides. L. Matano is a very deep (590 m) graben-lake, drained by the steep R. Petea to L. Mahalona, from where the flow continues to L. Towuti. L. Towuti is drained to the sea. Lake Lontoa is connected by a stream to L. Towuti; no telmatherinids were found in L. Masapi. Fish inside the lakes represent the major groups of lake phenotypes. Sampling locations of stream telmatherinids are indicated as dots, with numbers referring to location names specified in electronic supplementary material Table 2. Map by von Rintelen & Zitzler, modified with permission. 1997; Lu & Bernatchez 1999; Turgeon et al. 1999; sharpfins than in the predominantly pelagic roundfins McKinnon & Rundle 2002) have been developed as (Herder et al. in press; supplementary table 1). In rivers models. However, to understand the mechanisms shaping and streams of the Malili Lakes drainage system, as well as whole radiations, model systems should be larger than a in several isolated neighbouring watersheds, morpho- single species pair but small enough to be covered almost logically more or less distinct stream populations completely. Recent molecular phylogenetic evidence (Telmatherina cf. bonti ) were recently discovered (figure 1; based on freshwater gastropods (von Rintelen et al. supplementary table 2). 2004) and fishes (Roy et al. 2004) suggest strongly that Here, we use multilocus AFLP marker and mito- the organismic diversity of the Malili Lakes of Central chondrial haplotypes to test for phylogenetic signals of Sulawesi (Indonesia) may represent such a system. This ancient or ongoing introgressive hybridization during ancient lake system (Brooks 1950) consists of the three species flock formation. Tests based on the multilocus main lakes, Matano, Towuti and Mahalona, and two dataset are applied to demonstrate that hybridization is a smaller lakes, Lontoa and Masapi (figure 1). They harbour common phenomenon in the radiation of sailfin silver- an endemic species flock of sailfin silversides (Teleostei: sides. There is a conspicuous correlation of the high Atheriniformes: Telmatherinidae; see figures 1 and 2), morphological diversity and pronounced patterns of hybridization in the adaptive radiation of L. Matano’s which exhibit a conspicuous chromatic polymorphism in sharpfins. We discuss findings in the context of hybrid male coloration in several species consisting of ‘yellow’ speciation in species flocks. and ‘blue’ colour components; they are endemic either to Lakes Towuti and Mahalona or to isolated L. Matano alone (Kottelat 1990, 1991; Herder et al. in press). Their 2. MATERIAL AND METHODS diversity comprises the genera Paratherina, Tominanga and (a) Study system Telmatherina. Lake Matano’s Telmatherina can be assigned The Malili Lakes system is located in the central highland of according to shape of their second dorsal and anal fins to Sulawesi. Its main lakes have a size of 24–561 km2, are ‘roundfins’ and ‘sharpfins’ (Kottelat 1991), with consider- characterized by crystal clear water and are interconnected by ably higher diversity in the predominantly benthic rivers or streams, allowing for contact among sailfin silverside Proc. R. Soc. B (2006) Proc. R. Soc. B (a) Marosatherina ladigesi Lakes Towuti/Mahalona/Lontoa Lake Matano Surrounding streams 0.80 74 73 Paratherina (Towuti/Mahalona) Telmatherina roundfins (Matano) Telmatherina cf. bonti (streams) (2006) 0.79 69 77 Telmatherina celebensis (Towuti/Mahalona/Lontoa) Telmatherina sharpfins (Matano) Telmatherina cf. bonti West (West-stream) 1.00 99 99 Tominanga (Towuti/Mahalona) Bootstrap-support (2000 replicates) 0.66 -- -- 100 (b) 100 100 1.00 98 96 91 99 1.00 98 Radiation and hybridization 99 98 1.00 100 100 1.00 56 82 92 1.00 1 change 84 78 1.0 0.68 -- -- 0.89 87 80 0.88 F. Herder and others 2211 93 92 1.00 99 98 0.96 55 -- 10.0 Figure 2. Phylogenies of Malili Lakes telmatherinids. (a) Bayesian tree of mitochondrial haplotypes, rooted with Marosatherina (SW-Sulawesi). The numbers above branches refer to Bayesian posterior probabilities of the major nodes. Bootstrap and jackknife values (more than 50%; upper and lower values, respectively) are shown below branches. (b) Distance-based phylogenetic
Load more

Recommended publications
  • The Species Flocks in the Ancient Lakes of Sulawesi, Indonesia
    12 Aquatic biodiversity hotspots in Wallacea: the species fl ocks in the ancient lakes of Sulawesi, Indonesia T h o m a s v o n R i n t e l e n , K r i s t i n a v o n R i n t e l e n , M a t t h i a s G l a u b r e c h t , C h r i s t o p h D . S c h u b a r t a n d F a b i a n H e r d e r 12.1 Introduction Some of the world’s most spectacular species radiations or species fl ocks are found in so-called ‘ancient lakes’. Th ese are long-lived lakes that have existed for 100 000 years (Gorthner et al. 1994 , but see also Albrecht and Wilke 2008 ) or more (e.g. Lake Tanganyika and Lake Baikal). Ancient lakes are justifi ably regarded as hotspots of diversifi cation (e.g. Martens 1997 , Rossiter and Kawanabe 2000 ), even if not all ancient lake species fl ocks match the diversity of the super-fl ock of East African cichlids (e.g. Kornfi eld and Smith 2000 , Kocher 2004 ). Studies on the evo- lution of ancient lake organisms have continuously resulted in important insights into general patterns of speciation and radiation (e.g. Streelman and Danley 2003 ) ever since the seminal review of Brooks ( 1950 ). During the last decade, smaller ancient lakes (c. <1 000 km 2 ), which are generally less well investigated, have attracted increasing attention.
    [Show full text]
  • Adaptive Sympatric Speciation of Polychromatic “Roundfin” Sailfin Silverside Fish in Lake Matano (Sulawesi)
    ORIGINAL ARTICLE doi:10.1111/j.1558-5646.2008.00447.x ADAPTIVE SYMPATRIC SPECIATION OF POLYCHROMATIC “ROUNDFIN” SAILFIN SILVERSIDE FISH IN LAKE MATANO (SULAWESI) Fabian Herder,1,2,3 Jobst Pfaender,1,4 and Ulrich K. Schliewen2,5 1Sektion Ichthyologie, Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160, D-53113 Bonn, Germany 2Department of Ichthyology, Bavarian State Collection of Zoology (ZSM), Munchhausenstr.¨ 21, D-81247 Munchen,¨ Germany 3E-mail: [email protected] 4E-mail: [email protected] 5E-mail: [email protected] Received December 21, 2007 Accepted June 9, 2008 The significance of sympatric speciation is one of the most controversial topics in evolutionary biology. Theory suggests that different factors can lead to speciation in full geographical contact, including selection and nonrandom mating. Strict criteria have been established for assessing sympatric speciation, which have been met in only a very few cases. Here, we investigate differen- tiation among sympatric morphospecies and color morphs of “roundfin” sailfin silversides (Telmatherinidae), small freshwater fish endemic to ancient Lake Matano in Central Sulawesi (Indonesia). Morphospecies are distinct according to body shape (geometric morphometrics), population structure (population-level amplified fragment length polymorphism [AFLP] markers), ecology, and mating behavior (habitat transects, stomach contents). Explorative genome scans based on AFLPs indicate that divergent selection affects only 1.3–4.2% of the analyzed loci, suggesting an early stage of speciation. Transect data demonstrate strong assortative mating and adaptive niche differentiation. However, we find no restrictions in gene flow among the conspicuous male color morphs. In summary, our data are consistent with a sympatric mode of divergence among three morphospecies under conditions effectively ruling out allopatric scenarios.
    [Show full text]
  • Sorowako Dan Sekitarnya Akan Sangat Kental Kami Sajikan
    WELCOME TO SOROWAKWHERE TRANQUILITY AND HUSTLE-BUSTLE ENTWINE IN HARMONYO Bersantai di Pantai Ide Trekking di Atap Langit Towuti Buah Tangan dari Bumi Batara Guru Pembaca yang berbahagia, Di edisi ini, nuansa kelokalan Luwu Timur, khususnya Sorowako dan sekitarnya akan sangat kental kami sajikan. Hal itu karena cukup banyak perkembangan dan peruba- han yang mengagumkan terjadi di Sorowako dan sekitarnya dalam waktu dua tahun terakhir. Kota ini tampak terasa semakin hidup dengan munculnya berbagai fasilitas, spot rekreasi hingga tempat nongkrong baru berbasis usaha kecil dan menengah dan in- dustri kreatif. Tentu hal ini menjadi kabar yang membanggakan dan menggembirakan bagi Luwu Timur yang memang memproyeksikan sebagai salah satu destinasi wisata di Sulawesi Selatan juga motor baru penggerak ekonominya. Editorial Semoga majalah ini dapat menjadi panduan Anda ketika liburan dan jalan-jalan di Sorowako dan sekitarnya. Selamat menjelajah! Salam Dear readers, In this edition, the local nuances of East Luwu, especially Sorowako and its surround- ings, will be very strong. It’s because quite a number of amazing developments and chang- es have taken place in Sorowako and its surroundings in the past two years. This city seems to be increasingly alive with the development of various facilities, recreation spots to new hangout places based on small-medium businesses and creative industries. For sure, this growth brings pride and excitement to East Luwu who is indeed projecting itself as one of the tourist destinations in South Sulawesi, as well as an eco- nomic driving force. We hope this magazine can guide you whenever you are having a holiday or do sight- seeing in Sorowako and its surroundings.
    [Show full text]
  • The Etyfish Project © Christopher Scharpf and Kenneth J
    ATHERINIFORMES (part 2) · 1 The ETYFish Project © Christopher Scharpf and Kenneth J. Lazara COMMENTS: v. 4.0 - 9 Dec. 2019 Order ATHERINIFORMES (part 2 of 2) Family BEDOTIIDAE Malagasy Rainbowfishes 2 genera · 16 species Bedotia Regan 1903 -ia, belonging to: Maurice Bedot (1859-1927), director of the Geneva Natural History Museum (where holotype of type species B. madagascariensis is housed) and editor of journal in which description appeared Bedotia albomarginata Sparks & Rush 2005 albus, white; marginatus, edged or bordered, referring to characteristic white marginal stripes on second dorsal fin and anal fin Bedotia alveyi Jones, Smith & Sparks 2010 in honor of Mark Alvey (b. 1955), Field Museum (Chicago, Illinois, USA), for his “tremendous” efforts to promote natural history research and species discovery during his tenure as Administrative Director of Academic Affairs Bedotia geayi Pellegrin 1907 in honor of pharmacist and natural history collector Martin François Geay (1859-1910), who collected type Bedotia leucopteron Loiselle & Rodriguez 2007 leukos, white; pteron, fin, referring to iridescent-white fin coloration particularly evident in adult male Bedotia longianalis Pellegrin 1914 longus, long; analis, anal, referring to more anal-fin rays (19) compared to the similar B. geayi (14-17) Bedotia madagascariensis Regan 1903 -ensis, suffix denoting place: Madagascar, where it (and entire family) is endemic Bedotia marojejy Stiassny & Harrison 2000 named for Parc national de Marojejy, northeastern Madagascar, type locality Bedotia masoala Sparks 2001 named for Masoala Peninsula of northeastern Madagascar, where this species appears to be endemic Bedotia tricolor Pellegrin 1932 tri-, three, referring to anal-fin coloration of adults, “three equal parallel bands: black, yellow, red, exactly reproducing the Belgian flag” (translation) Rheocles Jordan & Hubbs 1919 etymology not explained, presumably rheos, current or stream, referring to occurrence of R.
    [Show full text]
  • Status Taksonomi Iktiofauna Endemik Perairan Tawar Sulawesi (Taxonomical Status of Endemic Freshwater Ichthyofauna of Sulawesi) Renny Kurnia Hadiaty
    Jurnal Iktiologi Indonesia, 18(2): 175-190 DOI: https://doi.org/10.32491/jii.v18i2.428 Ulas-balik Status taksonomi iktiofauna endemik perairan tawar Sulawesi (Taxonomical status of endemic freshwater ichthyofauna of Sulawesi) Renny Kurnia Hadiaty Laboratorium Iktiologi, Bidang Zoologi, Puslit Biologi-LIPI Jl. Raya Bogor Km 46, Cibinong 16911 Diterima: 25 Mei 2018; Disetujui: 5 Juni 2018 Abstrak Perairan tawar Pulau Sulawesi merupakan habitat beragam iktiofauna endemik Indonesia yang tidak dijumpai di bagian manapun di dunia ini. Dari perairan tawar pulau ini telah dideskripsi 68 spesies ikan endemik dari tujuh familia, tergo- long dalam empat ordo. Ke tujuh familia tersebut adalah Adrianichthyiidae (19 spesies, dua genera), Telmatherinidae (16 spesies, empat genera), Zenarchopteridae (15 spesies, tiga genera), Gobiidae (14 spesies, empat genera), Anguilli- dae (satu spesies, satu genus), Eleotridae dua spesies, dua genera), dan Terapontidae (satu spesies, satu genus). Seba- gian besar spesies endemik di P. Sulawesi hidup di perairan danau (45 spesies atau 66,2%), 23 spesies hidup di perairan sungai. Spesies pertama yang dideskripsi dari P. Sulawesi adalah Glossogobius celebius oleh Valenciennes tahun 1837, spesimen tipenya disimpan di Museum Paris. Delapan spesies ditemukan pada abad 19, sampai sebelum kemerdekaan Indonesia telah ditemukan 29 spesies, setelah merdeka ditemukan 39 spesies di P. Sulawesi. Di awal penemuan spesies baru, spesimen tipe disimpan di museum luar negeri, namun sejak tahun 1990 dipelopori oleh Dr. Maurice Kottelat spesimen tipe disimpan di Museum Zoologicum Bogoriense (MZB), Bidang Zoologi, Pusat Penelitian Biologi. Sampai saat ini spesimen tipe iktiofauna dari P. Sulawesi disimpan di 27 museum dari 11 negara di dunia, terbanyak di Ame- rika (8), Jerman (6), Swiss (3), Australia, dan Belanda (2), sedangkan di Austria, Jepang, Perancis, Singapura, Inggris, dan Indonesia masing-masing satu museum.
    [Show full text]
  • Evolutionary History and Whole Genome Sequence of Pejerrey (Odontesthes Bonariensis): New Insights Into Sex Determination in Fishes
    Evolutionary History and Whole Genome Sequence of Pejerrey (Odontesthes bonariensis): New Insights into Sex Determination in Fishes by Daniela Campanella B.Sc. in Biology, July 2009, Universidad Nacional de La Plata, Argentina A Dissertation submitted to The Faculty of The Columbian College of Arts and Sciences of The George Washington University in partial fulfillment of the requirements for the degree of Doctor of Philosophy January 31, 2015 Dissertation co-directed by Guillermo Ortí Louis Weintraub Professor of Biology Elisabet Caler Program Director at National Heart, Lung and Blood Institute, NIH The Columbian College of Arts and Sciences of The George Washington University certifies that Daniela Campanella has passed the Final Examination for the degree of Doctor of Philosophy as of December 12th, 2014. This is the final and approved form of the dissertation. Evolutionary History and Whole Genome Sequence of Pejerrey (Odontesthes bonariensis): New Insights into Sex Determination in Fishes Daniela Campanella Dissertation Research Committee: Guillermo Ortí, Louis Weintraub Professor of Biology, Dissertation Co-Director Elisabet Caler, Program Director at National Heart, Lung and Blood Institute, NIH, Dissertation Co-Director Hernán Lorenzi, Assistant Professor in Bioinformatics Department, J. Craig Venter Institute Rockville Maryland, Committee Member Jeremy Goecks, Assistant Professor of Computational Biology, Committee Member ! ""! ! Copyright 2015 by Daniela Campanella All rights reserved ! """! Dedication The author wishes to dedicate this dissertation to: My love, Ford, for his unconditional support and inspiration. For teaching me that admiration towards each other’s work is the fundamental fuel to go anywhere. My family and friends, for being there, meaning “there” everywhere and whenever. My grandpa Hugo, a pejerrey lover who knew how to fish, cook and enjoy the “silver arrows”.
    [Show full text]
  • Suzanne M. Gray, Ph.D. Curriculum Vitae Updated February 3, 2020
    Suzanne M. Gray, Ph.D. Curriculum Vitae Updated February 3, 2020 Address: School of Environment and Natural Resources, The Ohio State University 420B Kottman Hall, 2021 Coffey Rd, Columbus, OH, USA 43210 Phone: 614-292-4643 Email: [email protected] Website: http://senr.osu.edu/our-people/suzanne-gray Lab Website: http://u.osu.edu/gray.1030/ Citizenship: Canadian; US Permanent Resident PROFESSIONAL SYNOPSIS Appointments 2019-current Associate Professor, School of Environment and Natural Resources, OSU 2013-2019 Assistant Professor, School of Environment and Natural Resources, OSU 2015-current Associate Editor, Canadian Journal of Fisheries and Aquatic Sciences Academic Positions 2012-2013 Research Associate McGill University Dr. Lauren Chapman 2010-2012 Visiting Fellow Fisheries and Oceans Canada Dr. Nicholas Mandrak & McGill University Dr. Lauren Chapman 2009-2010 NSERC Postdoc McGill University Dr. Lauren Chapman 2007-2008 Postdoc Queen’s University Dr. Craig Hawryshyn Education 2007 - Ph.D. Behavioural Ecology Simon Fraser University Dr. Lawrence Dill & Dr. Jeffrey McKinnon 2002 - M.Sc. Zoology University of Guelph Dr. Beren Robinson 1999 - B.Sc. Honours Zoology University of Guelph Dissemination of Knowledge: 32 peer-reviewed articles, >30 international and national conference presentations, hosted international workshop, supervised 28 undergraduate research projects, trained >30 lab and field research assistants. PEER-REVIEWED PUBLICATIONS (*denotes students supervised/mentored) 32. Nieman*, C.L., Gray, S.M. 2019. Elevated algal and sedimentary turbidity alter prey consumption by emerald shiner (Notropis atherinoides). Ecology of Freshwater Fish 00: 1– 9. 31. Carlson, A.K., Taylor, W.W., Kinnison, M.T., Sullivan, S.M.P., Weber, M.J., Melstrom, R.T., Venturelli, P.A., Wuellner, M.R., Newman, R.M., Hartman, K.J., Zydlewski, G.B., DeVries, D.D., Gray, S.M., Infante, D.M., Pegg, M.A., Harrell, R.M., and A.E.
    [Show full text]
  • Self Study Report: Ecu Biology Unit Academic Program Review (2011)
    SELF STUDY REPORT: ECU BIOLOGY UNIT ACADEMIC PROGRAM REVIEW (2011) I. PROGRAM DESCRIPTION 1.1 Exact Title(s) of Unit Program Department of Biology 1.2 Department or Interdisciplinary Group Authorized to Offer Degree Program(s) Biology; Interdisciplinary PhD in Biological Sciences; Coastal Resource Management 1.3 Exact Title(s) of Degrees granted Bachelor of Science, Master of Science, Doctor of Philosophy (students supervised by faculty members) 1.4 College or School Thomas Harriot College of Arts and Sciences 1.5 Brief History and Mission The first biology course at East Carolina University (ECU) was offered in 1910, and the Department of Biology was established in 1963. The Master’s in Biology was initiated in 1964. During the succeeding 20 years, concentrations in ecology and environmental science, biochemistry, and cell biology were developed within this MS program. Revision and expansion of the Biochemistry concentration during 1990-91 led to the establishment of a second Master’s program in Molecular Biology/Biotechnology in 1992. Interdisciplinary doctoral programs in Coastal Resources Management (CRM) and Biological Sciences (IDPBS) were established in 1998 and1999, respectively. The CRM program hosts approximately 16 departments, and students pursue studies in and conduct research relevant to two of the following concentrations: coastal and estuarine ecology, coastal geosciences, and social science and coastal policy. Participants in the IDPBS program consist of the academic departments of the Brody School of Medicine, and the departments of Biology and Chemistry. Students complete a concise core curriculum, followed by an individually tailored selection of electives offered by the three participating units. In 2009 Biology obtained control of its own track within IDPBS.
    [Show full text]
  • Length-Weight Relationship and Condition Factor of the Celebes
    Length-weight relationship and condition factor of the Celebes rainbowfish Marosatherina ladigesi, endemic to the Maros karst region, South Sulawesi, Indonesia 1Sharifuddin B. A. Omar, 2Kariyanti, 1Dewi Yanuarita, 1Mohammad T. Umar, 2Yeni S. A. Lawi 1 Aquatic Resources Management Study Program, Hasanuddin University, Makassar, South Sulawesi, Indonesia; 2 Balik Diwa College of Marine Technology, Makassar, South Sulawesi, Indonesia. Corresponding author: S. B. A. Omar, [email protected] Abstract. Locally called beseng-beseng, Marosatherina ladigesi (Ahl 1936) is a rainbowfish endemic to the Maros karst region in South Sulawesi, Indonesia. The colorful > ladigesi male has become popular within ornamental fish hobbyists worldwide. However there is a lack of published information on the basic biological parameters of this species. This research aimed to determine the length-weight relationship and condition factors of two wild M. ladigesi populations. Sampling was carried out in two studies. In the first study, samples were collected 12 times at fortnightly intervals from October 2013 to March 2014. The fish were caught using a rectangular net (3 x 1m), 0.5 cm mesh size, from Bantimurung River (N = 338) and Pattunuang River (N = 331), both in Maros District. The samples were examined in the Fisheries Biology Laboratory, Hasanuddin University. The fish collected from Bantimurung river comprised 69 males and 269 females, while those from Pattunuang River comprised 88 males and 243 females. In the second study, samples were collected 8 times from July to October 2020. The number of samples obtained from the Bantimurung River was 206 individuals, while in the Pattunuang River no fish samples were obtained.
    [Show full text]
  • Aquatic Biodiversity Conservation and Ecosystem Services Ecological Research Monographs
    Ecological Research Monographs Shin-ichi Nakano · Tetsukazu Yahara Tohru Nakashizuka Editors Asia-Pacific Biodiversity Observation Network Aquatic Biodiversity Conservation and Ecosystem Services Ecological Research Monographs Asia-Pacific Biodiversity Observation Network Series editor Yoh Iwasa More information about this series at http://www.springer.com/series/8852 Shin-ichi Nakano • Tetsukazu Yahara • Tohru Nakashizuka Editors Aquatic Biodiversity Conservation and Ecosystem Services Editors Shin-ichi Nakano Tetsukazu Yahara Center for Ecological Research Department of Biology Kyoto University Kyushu University Otsu, Shiga Fukuoka, Japan Japan Tohru Nakashizuka Graduate School of Life Sciences Tohoku University Sendai, Japan ISSN 2191-0707 ISSN 2191-0715 (electronic) Ecological Research Monographs ISBN 978-981-10-0778-1 ISBN 978-981-10-0780-4 (eBook) DOI 10.1007/978-981-10-0780-4 Library of Congress Control Number: 2016939121 © Springer Science+Business Media Singapore 2016 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication.
    [Show full text]
  • Speciation in Ancient Lakes: Insights from the Copepods of Sulawesi
    University of Windsor Scholarship at UWindsor Electronic Theses and Dissertations Theses, Dissertations, and Major Papers 2012 Speciation in ancient lakes: Insights from the copepods of Sulawesi James Joseph Vaillant University of Windsor Follow this and additional works at: https://scholar.uwindsor.ca/etd Recommended Citation Vaillant, James Joseph, "Speciation in ancient lakes: Insights from the copepods of Sulawesi" (2012). Electronic Theses and Dissertations. 5587. https://scholar.uwindsor.ca/etd/5587 This online database contains the full-text of PhD dissertations and Masters’ theses of University of Windsor students from 1954 forward. These documents are made available for personal study and research purposes only, in accordance with the Canadian Copyright Act and the Creative Commons license—CC BY-NC-ND (Attribution, Non-Commercial, No Derivative Works). Under this license, works must always be attributed to the copyright holder (original author), cannot be used for any commercial purposes, and may not be altered. Any other use would require the permission of the copyright holder. Students may inquire about withdrawing their dissertation and/or thesis from this database. For additional inquiries, please contact the repository administrator via email ([email protected]) or by telephone at 519-253-3000ext. 3208. Speciation in ancient lakes: insights from the copepods of Sulawesi by James J Vaillant A Thesis Submitted to the Faculty of Graduate Studies through Environmental Science in Partial Fulfillment of the Requirements for the Degree of Master of Science at the University of Windsor Windsor, Ontario, Canada 2012 © 2012 James J Vaillant Speciation in ancient lakes: insights from the copepods of Sulawesi by James J Vaillant APPROVED BY: ______________________________________________ Dr.
    [Show full text]
  • Ancient Lakes As Hotspots of Diversity: A
    Hydrobiologia (2007) 592:11–94 DOI 10.1007/s10750-007-0765-8 PRIMARY RESEARCH PAPER Ancient lakes as hotspots of diversity: a morphological review of an endemic species flock of Tylomelania (Gastropoda: Cerithioidea: Pachychilidae) in the Malili lake system on Sulawesi, Indonesia Thomas von Rintelen Æ Philippe Bouchet Æ Matthias Glaubrecht Received: 1 February 2007 / Revised: 30 April 2007 / Accepted: 11 May 2007 / Published online: 3 August 2007 Ó Springer Science+Business Media B.V. 2007 Abstract The viviparous freshwater gastropod species flock on Sulawesi is among the largest Tylomelania (Caenogastropoda: Cerithioidea: freshwater mollusc radiations known. Since the Pachychilidae) endemic to the Indonesian island Malili lake system also contains other large Sulawesi has radiated extensively in two ancient endemic species flocks of e.g. crustaceans and lake systems. We here present the first systematic fishes, it is a major hotspot of freshwater biodi- species-level review of taxa in the five lakes of the versity in Asia to become a conservation priority. Malili lake system, which contains the most diverse and best studied freshwater fauna on Keywords Freshwater gastropods Á Adaptive Sulawesi. Our results indicate a significantly radiation Á Taxonomy Á Morphology Á Ecology Á higher diversity of Tylomelania in these lakes Biodiversity than previously perceived based on morphologi- cal evidence for delimiting the taxa. We describe nine new species, thus increasing the number of Introduction taxa known from the Malili lakes to 25. Tylomel- ania species are inhabiting all available substrates The Indonesian island Sulawesi (Fig. 1a), the in the lakes, and the diversity of habitats is easternmost of the Greater Sunda islands, has a reflected in an unparalleled range of radula types peculiar and highly endemic fauna very different in this closely related group.
    [Show full text]