DOCSLIB.ORG

Functional Structure of the Bromeliad Tank Microbiome Is Strongly Shaped by Local Geochemical Conditions

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Functional Structure of the Bromeliad Tank Microbiome Is Strongly Shaped by Local Geochemical Conditions Environmental Microbiology (2017) 19(8), 3132–3151 doi:10.1111/1462-2920.13788 Functional structure of the bromeliad tank microbiome is strongly shaped by local geochemical conditions Stilianos Louca,1,2* Saulo M. S. Jacques,3,4 denitrification steps, ammonification, sulfate respira- Aliny P. F. Pires,3 Juliana S. Leal,3,5 tion, methanogenesis, reductive acetogenesis and 6 1,2,7 Angelica L. Gonzalez, Michael Doebeli and anoxygenic phototrophy. Overall, CO2 reducers domi- Vinicius F. Farjalla3 nated in abundance over sulfate reducers, and 1Biodiversity Research Centre, University of British anoxygenic phototrophs largely outnumbered oxy- Columbia, Vancouver, BC, Canada. genic photoautotrophs. Functional community 2Department of Zoology, University of British Columbia, structure correlated strongly with environmental vari- Vancouver, BC, Canada. ables, between and within a single bromeliad species. 3Department of Ecology, Biology Institute, Universidade Methanogens and reductive acetogens correlated Federal do Rio de Janeiro, Rio de Janeiro, Brazil. with detrital volume and canopy coverage, and exhib- 4Programa de Pos-Graduac ¸ao~ em Ecologia e ited higher relative abundances in N. cruenta.A Evoluc¸ao,~ Universidade Estadual do Rio de Janeiro, Rio comparison of bromeliads to freshwater lake sedi- de Janeiro, Brazil. ments and soil from around the world, revealed stark differences in terms of taxonomic as well as func- 5Programa de Pos-Graduac ¸ao~ em Ecologia, tional microbial community structure. Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. 6Biology Department & Center for Computational & Introduction Integrative Biology, Rutgers University, Camden, NJ, USA. Bromeliads (fam. Bromeliaceae) are plants found through- 7Department of Mathematics, University of British out the neotropics, with many species having rosette-like Columbia, Vancouver, BC, Canada. foliages that can accumulate water and detritus (e.g. dead leaves from the surrounding canopy) in a central cavity (Kitching, 2001). The accumulation and decomposition of Summary detritus inside these cavities (‘tanks’) provides nutrients to Phytotelmata in tank-forming Bromeliaceae plants are the plant (Benzing and Renfrow, 1974; Endres and Mer- regarded as potential miniature models for aquatic cier, 2003; Romero et al., 2006) and to a plethora of ecology, but detailed investigations of their microbial organisms residing in the tanks (Srivastava, 2006). In communities are rare. Hence, the biogeochemistry in coastal sand dune forests or ‘restingas’ (Fig. 1A), which bromeliad tanks remains poorly understood. Here we cover 70% of the Brazilian coast, bromeliads can reach 21 investigate the structure of bacterial and archaeal densities over 15 000 ha and constitute moist and communities inhabiting the detritus within the tanks nutrient-rich oases amid a predominantly sandy and of two bromeliad species, Aechmea nudicaulis and nutrient-poor environment (Cogliatti-Carvalho et al., 2001). Neoregelia cruenta, from a Brazilian sand dune forest. In such environments, bromeliad tanks are biodiversity hot- We used metagenomic sequencing for functional spots and central hubs for biomass and regional nutrient community profiling and 16S sequencing for taxo- cycling (Rocha et al., 2000; Romero et al., 2006; Martinson nomic profiling. We estimated the correlation et al., 2010). A great number of organisms, including bac- between functional groups and various environmen- teria, archaea, fungi, protozoans, insects, amphibians and tal variables, and compared communities between reptiles, spend part or all of their life cycle in these tanks bromeliad species. In all bromeliads, microbial com- (Rocha et al., 2000). These organisms can engage in a munities spanned a metabolic network adapted to plethora of interactions and ecosystem processes includ- oxygen-limited conditions, including all ing active nitrogen fixation (Brighigna et al., 1992; Goffredi et al., 2011b; Giongo et al., 2013), photosynthesis (Bouard Received 19 October, 2016; accepted 24 April, 2017. *For Corre- et al., 2012), chemolithotrophy (Goffredi et al., 2011a), her- spondence. E-mail louca@zoology.ubc.ca bivory, predation and detritivory (Ngai and Srivastava, VC 2017 Society for Applied Microbiology and John Wiley & Sons Ltd Functional structure of the bromeliad tank microbiome 3133 A B Aechmea nudicaulis C Neoregelia cruenta D 10 cm 10 cm light intensity number plant tank detrital tank temperature salinity shading (%) ( mol/m /s) of leaves height (cm) depth (cm) volume (mL) volume (mL) pH (PSU) EFGHP=0.006 P=0.40 P<0.001 P<0.001 I P<0.001 J P=0.43 KLP<0.001 P=0.04 MP=0.86 N P=0.01 turbidity water color DOC oxygen (NTU) (1/m) TSS (mg/L) conc. (mg/L) total N ( M) total P ( M) molar N:P CH4 ( M) N2O ( M) (% satur.) OPQRSP=0.11 P=0.006 P=0.04 P<0.001 P=0.94 T P=0.84 U P=0.70 V P=0.099 W P=0.03 X P=0.78 A.n. N.c. A.n. N.c. A.n. N.c. A.n. N.c. A.n. N.c. A.n. N.c. A.n. N.c. A.n. N.c. A.n. N.c. A.n. N.c. Fig. 1. Sampling site and bromeliads. A. Sampling site in the Jurubatiba National Park, on the east coast of Brazil. B. Aechmea nudicaulis (also indicated by white arrows in A) and (C) Neoregelia cruenta, the two bromeliad species considered in this study and the dominant bromeliad species in Jurubatiba. The rosette-like foliage arrangement forms multiple small peripheral cavities and a larger central tank, which accumulate rainwater, litter and dead animals and support intense nutrient cycling by specialized microbial communities. D. Detritus extracted from the bottom of a bromeliad tank. E–X. Box-whisker plots of physical (E–L) and chemical (M–X) variables across 22 A. nudicaulis (A.n., red) and 9 N. cruenta (N.c., blue) bromeliads. Whiskers show 95% percentiles around the medians. Statistical significances of differences in mean values between A. nudicaulis and N. cruenta (P-values based on permutation tests) are indicated in the plots. [Colour figure can be viewed at wileyonlinelibrary.com] 2006). Extensive research on protist and animal communi- gradient gel electrophoresis (DGGE) revealed rich and ties in bromeliad tanks reveals a food web structure that is highly variable microbial communities without, however, comparable in complexity to much larger aquatic ecosys- providing detailed information on taxonomic or functional tems (Richardson, 1999; Kitching, 2000; Rocha et al., structure (Farjalla et al., 2012). Sequencing of 16S ribo- 2000; Marino et al., 2013). Because bromeliad tanks con- somal RNA (rRNA) clone libraries (Goffredi et al., 2011b) stitute semi-isolated and self-contained systems, they are and shotgun environmental mRNA sequencing (Goffredi considered ideal models for ecosystem ecology, biogeog- et al., 2015) have provided further insight on microbial tax- raphy and climate change research (Srivastava et al., onomic composition and on active metabolic pathways in 2004; Farjalla et al., 2012; Atwood et al., 2013; Brandt rainforest bromeliads. These studies revealed that decom- et al., 2015). position of organic matter leads to oxygen depletion inside The bulk of organic matter decomposition and nutrient bromeliad tanks, where oxygen (O2) can drop below micro- cycling within bromeliad tanks is catalysed by microorgan- molar levels within the detrital mass accumulating at the isms (Bouard et al., 2012). Using bromeliad tanks as tank bottom (Guimaraes-Souza et al., 2006). This oxygen models for ecosystem ecology thus requires a solid under- depletion promotes fermentative activity that can decrease standing of the microbial component and the biochemical pH to levels below 4 (Goffredi et al., 2011b). Along such 2 22 processes that it catalyses. The vast majority of past stud- strong redox gradients, nitrate (NO3 ), sulfate (SO4 ) and ies on bromeliad tank communities either exclusively eventually carbon dioxide (CO2) may become alternative focused on animals or only considered microbial commu- terminal electron acceptors for bacterial and archaeal res- nity structure at coarse resolutions, for example, piration (Canfield and Thamdrup, 2009), potentially combining all bacteria into a single group (Ngai and Srivas- causing nitrogen loss via denitrification or driving sulfur tava, 2006; Farjalla et al., 2012; Marino et al., 2013; cycling and methanogenesis. High concentrations of Gonzalez et al., 2014). Previous work utilizing denaturation methanogens and intense methanogenesis have indeed VC 2017 Society for Applied Microbiology and John Wiley & Sons Ltd, Environmental Microbiology, 19, 3132–3151 3134 S. Louca et al. been detected in bromeliads (Martinson et al., 2010; Gof- study, we examine this functional composition in detail and fredi et al., 2011a; Brandt et al., 2016), however the role of discuss its meaning in terms of the biogeochemistry of the other potentially important anaerobic pathways remains bromeliad tank ecosystem. To facilitate the interpretation of unknown. Dissimilatory sulfur and nitrogen metabolism, for metagenomic content, whenever possible, we associated example, are typically active in other aquatic sediments detected taxa with various potential metabolic functions and oxygen-depleted water columns, where they strongly using the existing literature on cultured organisms (Louca shape local physicochemical conditions (Canfield and et al., 2016b,a). To explore the potential interaction Thamdrup, 2009). Moreover, the relative roles of various between environmental conditions and functional commu- microbial functional groups, including photoautotrophs, nity structure, we performed
Load more

Recommended publications
  • General Information Bromeliaceae Family
    General Information Bromeliads are a unique and fascinating family of hundreds of extremely diversified and exotic plants, which are amazingly adaptable, tough and relatively easy to grow. People often say that Bromeliads thrive on neglect. The species can tolerate a huge variety of growing conditions including heat, light, air and moisture. No Bromeliads are native to Australia and therefore have all been imported and introduced here. The plants are native to the Southern States of the USA, Central America and deep into South America, with regions like Florida, Mexico, the West Indies, parts of Brazil and as far south as Chile having many and various species. One very primitive species is also found in Africa and has survived since the two continents separated. Bromeliaceae Family The entire bromeliad family called Bromeliaceae, is divided into three subfamilies containing many genera, with the Bromelioideae and Tillandsioideae subfamilies being the most popular bromeliads for enthusiasts and collectors. The subfamily Bromelioideae is distributed from Mexico to Argentina and has the greatest number of genera. They are mostly epiphytic, tank-type plants with spiny leaves and berry-like fruit containing wet seeds. The subfamily Pitcairnioideae are the most primitive bromeliads, descended from the grass family. Nearly all are terrestrial. Most have spiny leaves. The seeds are dry and usually winged. The subfamily Tillandsioideae has few genera, but includes about half of the species of bromeliads. Growing throughout the Americas, they are mostly epiphytes. All have spineless leaves. Seeds are dry, with feathery "parachutes" and are blown and float in the wind. The most notable and commercially developed of the family is the edible pineapple (Ananus comosus).
    [Show full text]
  • Functional Structure of the Bromeliad Tank Microbiome Is Strongly Shaped by Local Geochemical Conditions
    Environmental Microbiology (2017) 19(8), 3132–3151 doi:10.1111/1462-2920.13788 Functional structure of the bromeliad tank microbiome is strongly shaped by local geochemical conditions Stilianos Louca,1,2* Saulo M. S. Jacques,3,4 denitrification steps, ammonification, sulfate respira- Aliny P. F. Pires,3 Juliana S. Leal,3,5 tion, methanogenesis, reductive acetogenesis and 6 1,2,7 Angelica L. Gonzalez, Michael Doebeli and anoxygenic phototrophy. Overall, CO2 reducers domi- Vinicius F. Farjalla3 nated in abundance over sulfate reducers, and 1Biodiversity Research Centre, University of British anoxygenic phototrophs largely outnumbered oxy- Columbia, Vancouver, BC, Canada. genic photoautotrophs. Functional community 2Department of Zoology, University of British Columbia, structure correlated strongly with environmental vari- Vancouver, BC, Canada. ables, between and within a single bromeliad species. 3Department of Ecology, Biology Institute, Universidade Methanogens and reductive acetogens correlated Federal do Rio de Janeiro, Rio de Janeiro, Brazil. with detrital volume and canopy coverage, and exhib- 4Programa de Pos-Graduac ¸ao~ em Ecologia e ited higher relative abundances in N. cruenta.A Evoluc¸ao,~ Universidade Estadual do Rio de Janeiro, Rio comparison of bromeliads to freshwater lake sedi- de Janeiro, Brazil. ments and soil from around the world, revealed stark differences in terms of taxonomic as well as func- 5Programa de Pos-Graduac ¸ao~ em Ecologia, tional microbial community structure. Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. 6Biology Department & Center for Computational & Introduction Integrative Biology, Rutgers University, Camden, NJ, USA. Bromeliads (fam. Bromeliaceae) are plants found through- 7Department of Mathematics, University of British out the neotropics, with many species having rosette-like Columbia, Vancouver, BC, Canada.
    [Show full text]
  • ANATOMICAL and PHYSIOLOGICAL RESPONSES of Billbergia Zebrina (Bromeliaceae) UNDER DIFFERENT in VITRO CONDITIONS
    JOÃO PAULO RODRIGUES MARTINS ANATOMICAL AND PHYSIOLOGICAL RESPONSES OF Billbergia zebrina (Bromeliaceae) UNDER DIFFERENT IN VITRO CONDITIONS LAVRAS- MG 2015 JOÃO PAULO RODRIGUES MARTINS ANATOMICAL AND PHYSIOLOGICAL RESPONSES OF Billbergia zebrina (BROMELIACEAE) UNDER DIFFERENT IN VITRO CONDITIONS This thesis is being submitted in a partial fulfilment of the requirements for degree of Doctor in Applied Botanic of Universidade Federal de Lavras. Supervisor Dr. Moacir Pasqual Co-supervisor Dr. Maurice De Proft LAVRAS- MG 2015 Ficha catalográfica elaborada pelo Sistema de Geração de Ficha Catalográfica da Biblioteca Universitária da UFLA, com dados informados pelo(a) próprio(a) autor(a). Martins, João Paulo Rodrigues. Anatomical and physiological responses of Billbergia zebrina (Bromeliaceae) under different in vitro conditions / João Paulo Rodrigues Martins. – Lavras : UFLA, 2015. 136 p. : il. Tese(doutorado)–Universidade Federal de Lavras, 2015. Orientador(a): Moacir Pasqual. Bibliografia. 1. Bromeliad. 2. In vitro culture. 3. Photoautotrophic growth. 4. Plant anatomy. 5. Plant physiology. I. Universidade Federal de Lavras. II. Título. JOÃO PAULO RODRIGUES MARTINS ANATOMICAL AND PHYSIOLOGICAL RESPONSES OF Billbergia zebrina (BROMELIACEAE) UNDER DIFFERENT IN VITRO CONDITIONS This thesis is being submitted in a partial fulfilment of the requirements for degree of Doctor in Applied Botanic of Universidade Federal de Lavras. APPROVED 09th of June, 2015 Dr Diogo Pedrosa Corrêa da Silva UFLA Dra Leila Aparecida Salles Pio UFLA Dr Thiago Corrêa de Souza UNIFAL-MG Dra Vânia Helena Techio UFLA Dra Cynthia de Oliveira UFLA Supervisor Dr. Moacir Pasqual Co-supervisor Dr. Maurice De Proft LAVRAS- MG 2015 ACKNOWLEDGEMENTS God for having guided my path. My wonderful family (Including Capivara), I could not ask for better people.
    [Show full text]
  • Low-Maintenance Landscape Plants for South Florida1
    Archival copy: for current recommendations see http://edis.ifas.ufl.edu or your local extension office. ENH854 Low-Maintenance Landscape Plants for South Florida1 Jody Haynes, John McLaughlin, Laura Vasquez, Adrian Hunsberger2 Introduction The term "low-maintenance" refers to a plant that does not require frequent maintenance—such as This publication was developed in response to regular watering, pruning, or spraying—to remain requests from participants in the Florida Yards & healthy and to maintain an acceptable aesthetic Neighborhoods (FYN) program in Miami-Dade quality. A low-maintenance plant has low fertilizer County for a list of recommended landscape plants requirements and few pest and disease problems. In suitable for south Florida. The resulting list includes addition, low-maintenance plants suitable for south over 350 low-maintenance plants. The following Florida must also be adapted to—or at least information is included for each species: common tolerate—our poor, alkaline, sand- or limestone-based name, scientific name, maximum size, growth rate soils. (vines only), light preference, salt tolerance, and other useful characteristics. An additional criterion for the plants on this list was that they are not listed as being invasive by the Criteria Florida Exotic Pest Plant Council (FLEPPC, 2001), or restricted by any federal, state, or local laws This section will describe the criteria by which (Burks, 2000). Miami-Dade County does have plants were selected. It is important to note, first, that restrictions for planting certain species within 500 even the most drought-tolerant plants require feet of native habitats they are known to invade watering during the establishment period.
    [Show full text]
  • Ecological Functions of Neotropical Amphibians and Reptiles: a Review
    Univ. Sci. 2015, Vol. 20 (2): 229-245 doi: 10.11144/Javeriana.SC20-2.efna Freely available on line REVIEW ARTICLE Ecological functions of neotropical amphibians and reptiles: a review Cortés-Gomez AM1, Ruiz-Agudelo CA2 , Valencia-Aguilar A3, Ladle RJ4 Abstract Amphibians and reptiles (herps) are the most abundant and diverse vertebrate taxa in tropical ecosystems. Nevertheless, little is known about their role in maintaining and regulating ecosystem functions and, by extension, their potential value for supporting ecosystem services. Here, we review research on the ecological functions of Neotropical herps, in different sources (the bibliographic databases, book chapters, etc.). A total of 167 Neotropical herpetology studies published over the last four decades (1970 to 2014) were reviewed, providing information on more than 100 species that contribute to at least five categories of ecological functions: i) nutrient cycling; ii) bioturbation; iii) pollination; iv) seed dispersal, and; v) energy flow through ecosystems. We emphasize the need to expand the knowledge about ecological functions in Neotropical ecosystems and the mechanisms behind these, through the study of functional traits and analysis of ecological processes. Many of these functions provide key ecosystem services, such as biological pest control, seed dispersal and water quality. By knowing and understanding the functions that perform the herps in ecosystems, management plans for cultural landscapes, restoration or recovery projects of landscapes that involve aquatic and terrestrial systems, development of comprehensive plans and detailed conservation of species and ecosystems may be structured in a more appropriate way. Besides information gaps identified in this review, this contribution explores these issues in terms of better understanding of key questions in the study of ecosystem services and biodiversity and, also, of how these services are generated.
    [Show full text]
  • Water Relations of Bromeliaceae in Their Evolutionary Context
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Apollo Botanical Journal of the Linnean Society, 2016, 181, 415–440. With 2 figures Think tank: water relations of Bromeliaceae in their evolutionary context JAMIE MALES* Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK Received 31 July 2015; revised 28 February 2016; accepted for publication 1 March 2016 Water relations represent a pivotal nexus in plant biology due to the multiplicity of functions affected by water status. Hydraulic properties of plant parts are therefore likely to be relevant to evolutionary trends in many taxa. Bromeliaceae encompass a wealth of morphological, physiological and ecological variations and the geographical and bioclimatic range of the family is also extensive. The diversification of bromeliad lineages is known to be correlated with the origins of a suite of key innovations, many of which relate directly or indirectly to water relations. However, little information is known regarding the role of change in morphoanatomical and hydraulic traits in the evolutionary origins of the classical ecophysiological functional types in Bromeliaceae or how this role relates to the diversification of specific lineages. In this paper, I present a synthesis of the current knowledge on bromeliad water relations and a qualitative model of the evolution of relevant traits in the context of the functional types. I use this model to introduce a manifesto for a new research programme on the integrative biology and evolution of bromeliad water-use strategies. The need for a wide-ranging survey of morphoanatomical and hydraulic traits across Bromeliaceae is stressed, as this would provide extensive insight into structure– function relationships of relevance to the evolutionary history of bromeliads and, more generally, to the evolutionary physiology of flowering plants.
    [Show full text]
  • Bromeletter the Official Journal of the Bromeliad Society of Australia Inc
    1 BROMELETTER THE OFFICIAL JOURNAL OF THE BROMELIAD SOCIETY OF AUSTRALIA INC. MEETING DATE *3rd Saturday in bromeliad.org.au NOVEMBER ONLY ISSN 2208-0465 (Online) 18th NOVEMBER Vol 55 No 6 - November / December 2017. CONTENTS Management Details 2,3, 15,18,19 September - Plant of the Month, Margaret Draddy Artistic Competition 4,5 September Show, Tell, Ask 6 Aechmea ‘Pie in the Sky’ 6,7 BSA Spring Show - Results and Photos 8,9,10,11, 12,13 How to Ease Sunburn in Bromeliads - Paul Turvey 14 New Members 15 October - Plant of the Month, Margaret Draddy Artistic Competition 16,17 Seed Bank 18 Time to RENEW your MEMBERSHIP Membership renewal is due JANUARY 1st each year. Please consider whether or not you wish to receive your Bromeletter by email (as a PDF) Please return the enclosed (attached) renewal form to renew and update any details which have changed (or email the form found on our website). BROMELETTER is published bi-monthly at Sydney by The Bromeliad Society of Australia Incorporated. Deadlines for articles:15th of February, April, June, Au- gust, October and December, To allow for publishing in the first week of March, May, July, September, November and January. 2 COMMITTEE President Ian Hook 408 202 269 (president @bromeliad.org.au) Vice President(1), Kerry McNicol 0439 998 049 & Editor (membsec@bromeliad.org.au) Vice President (2) Meryl Thomas 0401 040 762 Secretary Carolyn Bunnell 02 9649 5762 Treasurer Alan Mathew 02 9516 5976 Member Helga Nitschke 0447 955 562 Member Patricia Sharpley 0439 672 826 Member Bob Sharpley 0409 361 778 Member Joy Clark 02 4572 3534 Member John Noonan 02 9627 5704 Member Ron Farrugia 02 9533 2546 BROMELIAD SOCIETIES AFFILIATED WITH THE BROMELIAD SOCIETY OF AUSTRALIA INC.
    [Show full text]
  • Plant-Hummingbird Interactions and Temporal Nectar Availability in a Restinga from Brazil
    Anais da Academia Brasileira de Ciências (2015) 87(4): 2163-2175 (Annals of the Brazilian Academy of Sciences) Printed version ISSN 0001-3765 / Online version ISSN 1678-2690 http://dx.doi.org/10.1590/0001-3765201520140349 www.scielo.br/aabc Plant-hummingbird interactions and temporal nectar availability in a restinga from Brazil LORENA C.N. FONSECA1,5, JEFERSON VIZENTIN-BUGONI2,6, ANDRÉ R. RECH3 and MARIA ALICE S. ALVES4 1Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio de Janeiro/ UFRJ, CCS, IB, Caixa Postal 68020, 21941-590 Rio de Janeiro, RJ, Brasil 2Programa de Pós-Graduação em Ecologia, Instituto de Biologia, Universidade Estadual de Campinas/ UNICAMP, Rua Monteiro Lobato, 970, Barão Geraldo, 13083-970 Campinas, SP, Brasil 3Instituto de Biologia, Universidade Federal de Uberlândia/UFU, Av. Pará, 1720, Campus Umuarama, 38405-320 Uberlândia, MG, Brasil 4Departamento de Ecologia, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro/UERJ, Rua São Francisco Xavier, 524, Maracanã, 20550-011 Rio de Janeiro, RJ, Brasil 5Companhia Ambiental do Estado de São Paulo/CETESB, Av. Professor Frederico Hermann Jr, 345, Pinheiros, 05459-900 São Paulo, SP, Brasil 6Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark Manuscript received on July 10, 2014; accepted for publication on April 27, 2015 ABSTRACT Hummingbirds are the most important and specialized group of pollinating birds in the Neotropics and their interactions with plants are key components to many communities. In the present study we identified the assemblage of plants visited by hummingbirds and investigated the temporal availability of floral resources in an area of restinga, sandy plain coastal vegetation associated with the Atlantic forest, in Southeastern Brazil.
    [Show full text]
  • Clusia Hilariana, a Key Species on Nutrient Cycling in Sand Dune Vegetation Thickets
    Oecologia Australis 24(2):420-437, 2020 https://doi.org/10.4257/oeco.2020.2402.13 Clusia hilariana, A KEY SPECIES ON NUTRIENT CYCLING IN SAND DUNE VEGETATION THICKETS Dora Maria Villela1,*, Ana Paula da Silva2, Giselle Sobrosa Levesque Bonadiman3, Anandra de Souza da Silva1 & Raphael Pires de Souza1 1 Universidade Estadual do Norte Fluminense Darcy Ribeiro, Centro de Biociências e Biotecnologia, Programa Pós- Graduação de Ecologia e Recursos Naturais, Laboratório de Ciências Ambientais, Avenida Alberto Lamego 2000, CEP: 28013-602, Campos dos Goytacazes, RJ, Brazil. 2 Instituto Federal do Rio de Janeiro, campus Arraial do Cabo, Laboratório de Ciências Ambientais, Rua José Pinto de Macedo, s/n, CEP: 28930-000, Prainha, Arraial do Cabo, RJ, Brazil. 3 Secretaria Municipal de Meio Ambiente de Cachoeiro de Itapemirim, Rua Agripino de Oliveira, nº 60, CEP:29306-450, Bairro Independência, Cachoeiro de Itapemirim, ES, Brazil. E-mails: dora@uenf.br (*corresponding author); doravillela@gmail.com; ana.paula@ifrj.edu.br; giselleslb@gmail.com; anandrauenf@gmail.com; rapharaphaeu@hotmail.com. Abstract: Interspecific plant-plant interactions studies showed that Clusia hilariana plays a facilitation role in the scattered vegetation thickets of the Brazilian sandy coastal plain vegetation (Restinga). In the Clusia open formation in the Jurubatiba Restinga National Park there are thickets differing in the presence and senescence of Clusia: (1) healthy Clusia thickets (HCT); (2) senescent Clusia thickets (SCT); and also (3) thickets without Clusia (TWC). The aim of this long term study was to assess soil chemistry, litterfall mass and nutrient input and its leaf-litter decomposition in Clusia thickets, testing the hypotheses that: (1) the presence of Clusia increases soil nutrient concentrations in the thickets; (2) litterfall mass and nutrient input are dependent on the senescence stage of Clusia, being higher in HCT than in SCT; (3) decomposition and nutrient release of Clusia leaves are faster in HCT than in SCT, evaluating if C.
    [Show full text]
  • Bromeletter the Official Journal of the Bromeliad Society of Australia Inc
    1 BROMELETTER THE OFFICIAL JOURNAL OF THE BROMELIAD SOCIETY OF AUSTRALIA INC. bromeliad.org.au ISSN 2208-0465 (Online) Vol 56 No 6 - November / December 2018. Have a Merry Christmas & a safe and Happy New Year Photo by Ross Little Reminder: Annual subscriptions fall due 1.01.2019 BROMELETTER is published bi-monthly at Sydney by The Bromeliad Society of Australia Incorporated. Deadlines for articles:15th of February, April, June, August, October and December, To allow for publishing in the first week of March, May, July, September, November and January. 2 CONTENTS Management Details 2,3,15,18,19 Plant Of The Month, Discussion: September 4,5 Spring Show 2018 Results and photographs 6,7,8,9,10 Vale - Ivan Hope 10 Frost then Sun!!! Presentation of Trophies, Spring Show 11 Plant Of The Month, Discussion: October 12,13,14 Removing pups from plants with short stolons, eg Vriesea 16 Nidularium angustifolium - from FNCBSG - April2018 17 COMMITTEE President Ian Hook 0408 202 269 (president @bromeliad.org.au) Vice President(1), Kerry McNicol 0439 998 049 & Editor (membsec@bromeliad.org.au) Vice President (2) Meryl Thomas 0401 040 762 Secretary Carolyn Bunnell 02 9649 5762 Treasurer Alan Mathew 02 9516 5976 Member Helga Nitschke 0447 955 562 Member Patricia Sharpley 0439 672 826 Member Bob Sharpley 0409 361 778 Member Joy Clark 02 4572 3534 Member John Noonan 02 9627 5704 BROMELIAD SOCIETIES AFFILIATED WITH THE BROMELIAD SOCIETY OF AUSTRALIA INC. Bromeliad Society of Victoria. The Secretary, P.O. Box 101, Darling. Vic. 3145 Cover: Caboolture & Districts Brom. Society Inc., Nidularium angustifolium The Secretary, P.O.
    [Show full text]
  • UFFLORIDA IFAS Extension
    ENH854 UFFLORIDA IFAS Extension Low-Maintenance Landscape Plants for South Florida1 Jody Haynes, John McLaughlin, Laura Vasquez, Adrian Hunsberger2 Introduction The term "low-maintenance" refers to a plant that does not require frequent maintenance-such as This publication was developed in response to regular watering, pruning, or spraying-to remain requests from participants in the Florida Yards & healthy and to maintain an acceptable aesthetic Neighborhoods (FYN) program in Miami-Dade quality. A low-maintenance plant has low fertilizer County for a list of recommended landscape plants requirements and few pest and disease problems. In suitable for south Florida. The resulting list includes addition, low-maintenance plants suitable for south over 350 low-maintenance plants. The following Florida must also be adapted to--or at least information is included for each species: common tolerate-our poor, alkaline, sand- or limestone-based name, scientific name, maximum size, growth rate soils. (vines only), light preference, salt tolerance, and other useful characteristics. An additional criterion for the plants on this list was that they are not listed as being invasive by the Criteria Florida Exotic Pest Plant Council (FLEPPC, 2001), or restricted by any federal, state, or local laws This section will describe the criteria by which (Burks, 2000). Miami-Dade County does have plants were selected. It is important to note, first, that restrictions for planting certain species within 500 even the most drought-tolerant plants require feet of native habitats they are known to invade watering during the establishment period. Although (Miami-Dade County, 2001); caution statements are this period varies among species and site conditions, provided for these species.
    [Show full text]
  • JOURNAL of NEMATOLOGY in Bromeliad Phytotelma, Anthropic
    JOURNAL OF NEMATOLOGY Article | DOI: 10.21307/jofnem-2020-101 e2020-101 | Vol. 52 In bromeliad phytotelma, anthropic disturbance does not affect the nematode trophic structure Alexandre Macedo Almeida1, Janeo Eustáquio Almeida Filho2 and Ricardo Moreira Souza1,* Abstract 1Grupo de Pesquisa em Phytotelmata (sing. phytotelma) are plant-associated reservoirs of Nematologia, Universidade rainwater and organic debris. These freshwater ecosystems are Estadual do Norte Fluminense found in tree and bamboo holes, pitcher plants, and tank-forming Darcy Ribeiro, Avenida Alberto bromeliads. Some studies suggest that anthropic disturbance Lamego, 2000, Campos dos (AD) may change the physico-chemical properties (PCPs) of the Goytacazes (RJ), 28015-602, water retained in the phytotelma, and indirectly impact its biota. Brazil. Hence, new AD-bioindicators could be found in the phytotelma biota. To test this hypothesis, three areas of Atlantic Forest were 2 Bayer do Brasil. Av. Fernando selected, distinct only by the level of long-term AD. In these areas, Osório, 2158, Pelotas (RS), we monitored the nematode trophic structure and the water PCPs in 96065-000, Brazil. the bromeliad Neoregelia cruenta during two years (eight seasons). *E-mail: ricmsouza@censanet. Significant differences among areas were found in some seasons for com.br total nematode abundance and/or the abundance of some trophic groups, but no pattern emerged relative to the level of AD. Anthropic This paper was edited by disturbance did not impact nematode trophic structure possibly Maria Viketoft. because the water PCPs remained fairly similar in all three areas. Our Received for publication results do not corroborate previous reports that AD alters phytotelma January 9, 2020.
    [Show full text]