Relevant bibliographies by topics / Alien planets

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Alien planets'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Alien planets"

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Thomsen, D. E. "'Possible' and 'Probable' Alien Planets." Science News 131, no. 26 (June 27, 1987): 405. http://dx.doi.org/10.2307/3971676.

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Thomsen, D. E. "Glimpses of Alien Comets and Planets?" Science News 131, no. 4 (January 24, 1987): 52. http://dx.doi.org/10.2307/3971419.

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Bhattacharjee, Y. "Alien Planets Hit the Commodities Market." Science 330, no. 6011 (December 16, 2010): 1620. http://dx.doi.org/10.1126/science.330.6011.1620.

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Woo, Marcus. "Alien life may flourish on purple planets." New Scientist 220, no. 2943 (November 2013): 18. http://dx.doi.org/10.1016/s0262-4079(13)62678-0.

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Irion, R. "ASTRONOMY: Alien Planets Glimmer in the Heat." Science 307, no. 5717 (March 25, 2005): 1853a. http://dx.doi.org/10.1126/science.307.5717.1853a.

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Oakes, Kelly. "Corpse stars could nurture life on alien planets." New Scientist 215, no. 2878 (August 2012): 8. http://dx.doi.org/10.1016/s0262-4079(12)62102-2.

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Cowen, Ron. "Alien light: Taking the spectra of extrasolar planets." Science News 171, no. 8 (September 30, 2009): 115. http://dx.doi.org/10.1002/scin.2007.5591710802.

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Croswell, Ken, Donald Goldsmith, Paul Halpern, and Steven J. Dick. "Planet Quest: The Epic Discovery of Alien Solar Systems; Worlds Unnumbered: The Search for Extrasolar Planets; The Quest for Alien Planets: Exploring Worlds Outside the Solar System." Physics Today 51, no. 4 (April 1998): 68–70. http://dx.doi.org/10.1063/1.882211.

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Grossman, Lisa. "Oldest planets in galaxy raise hopes of alien life." New Scientist 225, no. 3006 (January 2015): 13. http://dx.doi.org/10.1016/s0262-4079(15)60196-8.

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Claudi, Riccardo, and Eleonora Alei. "Biosignatures Search in Habitable Planets." Galaxies 7, no. 4 (September 29, 2019): 82. http://dx.doi.org/10.3390/galaxies7040082.

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The search for life has had a new enthusiastic restart in the last two decades thanks to the large number of new worlds discovered. The about 4100 exoplanets found so far, show a large diversity of planets, from hot giants to rocky planets orbiting small and cold stars. Most of them are very different from those of the Solar System and one of the striking case is that of the super-Earths, rocky planets with masses ranging between 1 and 10 M ⊕ with dimensions up to twice those of Earth. In the right environment, these planets could be the cradle of alien life that could modify the chemical composition of their atmospheres. So, the search for life signatures requires as the first step the knowledge of planet atmospheres, the main objective of future exoplanetary space explorations. Indeed, the quest for the determination of the chemical composition of those planetary atmospheres rises also more general interest than that given by the mere directory of the atmospheric compounds. It opens out to the more general speculation on what such detection might tell us about the presence of life on those planets. As, for now, we have only one example of life in the universe, we are bound to study terrestrial organisms to assess possibilities of life on other planets and guide our search for possible extinct or extant life on other planetary bodies. In this review, we try to answer the three questions that also in this special search, mark the beginning of every research: what? where? how?
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Dissertations / Theses on the topic "Alien planets"

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Mullins, Shena. "Alien on a Savage Planet." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1934.

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This paper details the process of creating the UNO Graduate thesis film Alien on a Savage Planet. Each major step in the filmmaking process is covered: screenwriting, producing, directing, cinematography, sound, production design, costumes, hair and makeup, workflow, editing, color correction, music and post- sound. A comprehensive assessment of the filmmaking process and the successes and failures of the project are discussed in length.
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Juárez, Escario Alejandro. "A trait-based approach to disentangle the success of alien weeds in irrigated crops." Doctoral thesis, Universitat de Lleida, 2016. http://hdl.handle.net/10803/399590.

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El estudio se centra detectar los cambios temporales sufridos en la composición florística de las comunidades de malas hierbas de los cultivos de regadío y en descifrar los factores intrínsecos y extrínsecos subyacentes al éxito de las especies exóticas en estos cultivos y a su capacidad de colonizar los hábitats naturales adyacentes. Se ha utilizado una aproximación funcional. Los resultados muestran que a largo plazo, ha habido cambios en la diversidad, la composición y la estructura funcional de las comunidades de malas hierbas y un incremento del protagonismo de las malas hierbas exóticas. En los cultivos frutales, entre los atributos funcionales más beneficiados destacan la vía fotosintética C4, las formas graminoides y perennes y la capacidad de reproducción vegetativa, así como la hidrocoria y las semillas adaptadas a más de un modo de dispersión. Estos atributos se encuentran representados principalmente en las especies exóticas y su selección está determinada fundamentalmente por el sistema de riego por inundación. Por otro lado, el manejo de los cultivos regados por goteo configura una comunidad de malas hierbas caracterizada por una menor prominencia de especies exóticas y una estructura funcional que la hace menos competitiva hacia los árboles frutales. Los atributos favorecidos en los cultivos frutales regados por inundación se relacionan con la capacidad de las malas hierbas exóticas para colonizar los ambientes riparios adyacentes a los cultivos.
L'estudi es centra a detectar els canvis temporals de la composició florística de les comunitats de males herbes dels cultius de regadiu i a desxifrar els factors intrínsecs i extrínsecs subjacents a l’èxit de les espècies exòtiques en aquests cultius i a la seva potencial capacitat de colonitzar els hàbitats naturals dels voltants. S’ha utilitzat una aproximació funcional. Els resultats mostren que a llarg termini, ha hagut canvis en la diversitat, la composició i l’estructura funcional de les comunitats de males herbes a més d’un increment del protagonisme de les males herbes exòtiques. Als fruiters, entre els atributs funcionals més beneficiats destaquen la via fotosintètica C4, les formes graminoides i perennes i la capacitat de reproducció vegetativa, així com la hidrocòria i les llavors adaptades a més d’un mode de dispersió. Aquests atributs es troben representats principalment a les espècies exòtiques i la seva selecció està dirigida fonamentalment pel sistema de regadiu per inundació. Per altra banda, el maneig dels cultius regats per degoteig configura una comunitat de males herbes caracteritzada per una menor prominència d’espècies exòtiques i una estructura funcional que la fa menys competitiva envers els arbres fruiters. Els atributs que es veuen afavorits en els fruiterars irrigats per inundació també es troba relacionat amb la capacitat que tenen les males herbes exòtiques per colonitzar els ambients riparis adjacents als cultius.
This study aims at identifying temporal changes in weed community composition as well as unravelling the intrinsic and extrinsic factors that lay behind the success of alien weeds in irrigated crops and their potential capability to spread and colonize surrounding natural habitats. These main goals were addressed using a trait-based approach. Results showed that at long-term temporal scale, there were changes in diversity, composition and functional structure of weed communities, accompanied by a higher prominence of alien plants within these weed assemblages. In orchards, C4 photosynthesis, graminoid and perennial forms, clonal reproduction, hydrochory and seed dispersed by multiple methods were among the most benefited plant traits, which were mainly found in successful alien weeds. This trait selection was mainly driven by flood irrigation. On the other hand, management in drip-irrigated orchards configures a weed community characterized by a lower prominence of alien species and a functional structure that make it less competitive to the trees.Furthermore, the trait syndrome favoured in flood-irrigated orchards was also linked to the capacity of alien species to overcome ecosystems filtering and colonize surrounding natural riparian habitats.
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Charlebois, Julia. "Pollinator-Mediated Interactions Between Alien and Native Plants: Alien Status and Spatial Relationships." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36637.

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The introduction of species outside of their native ranges has been extensively studied in ecology. Particular attention has been paid to examining interactions between alien and native plants, and a large proportion of this attention has focused on pollinator-mediated interactions. In order to interact through pollinators, plants must co-occur, coflower, and share pollinators; studies investigating pollinator-mediated interactions between alien and native plants frequently make fundamental assumptions about the definition of these prerequisites to pollinator-mediated interaction. The present analysis examines assumptions about plant co-occurrence and the effects that these assumptions have on study outcomes. In Chapter 2, I present the results of a meta-analysis of 76 studies which overturns previous findings that pollinator-mediated interactions between plants can be predicted on the basis of whether the neighbour is an alien, phylogenetic distance, or floral trait similarity. Moreover, I demonstrate that the spatial definition of the control group (i.e. the distance between the group of focal plants that ‘do not co-occur’ with the alien/alternate neighbour species and the nearest individuals of that neighbour species), and the spatial arrangements of plants within their treatment groups (i.e. the relative placement of the group of focal plants that ‘co-occurr’ with the neighbour species), both have a significant impact on the outcome of pollinator-mediated interactions between alien and native plants. I also emphasize evidence of bias in the selection of study systems and in the process of publication. In Chapter 3, I present the results of a field experiment testing the role of distance between interacting plants in determining patterns of visitation by insects. The results of this analysis are suggestive of visitor functional group-dependent effects but limited by low power. In both Chapter 2 and Chapter 3, I show that heretofore unexamined assumptions about definitions of co-occurrence of plants may be introducing bias into studies of pollinator-mediated interactions between plants, and that facilitation and competition between plants for visitation may be linked across different spatial scales.
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Zhang, Zhijie [Verfasser]. "Coexistence of alien and native plants / Zhijie Zhang." Konstanz : KOPS Universität Konstanz, 2020. http://d-nb.info/1223371883/34.

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Schonegevel, Lucille. "Modelling alien vegetation invasions and clearing strategies." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52341.

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Thesis (MSc)--Stellenbosch University, 2001.
ENGLISH ABSTRACT: The burgeoning problem of alien plant invasions in South Africa necessitates effective decision-making based on an understanding of the complex processes that govern these invasions. Due to the spatial nature of the problem, this study explored the use of Geographic Information Systems and spatial models for predicting the spread of alien vegetation and assessing the effectiveness of clearing strategies. The Spatially Explicit Individual Based Simulation (SEIBS) model was identified as a potentially useful tool for alien plant management. This thesis documents the further investigation and development that was necessary before recommendations could be made regarding the future use of the model. The landscape version of the SEIBS model was adapted to allow for the convenient input and output of spatial data, making it possible to simulate invasions in different areas. An ArcView extension was developed in order to facilitate the pre- and post-processing of the spatial data required and created by the model. Changes were also made to the fire routine of the model. The new version of the model was called Clear. A series of model tests for Pinus pinaster were conducted to assess the sensitivity of the Clear model to spatial resolution, initial spatial fragmentation and heterogeneity. These tests revealed that the model was sensitive to changes in resolution and needed to be reparameterised when using different resolutions. The initial level of fragmentation was shown to have a major influence on the invasion rate. Although greater levels of spatial heterogeneity with respect to vegetation age did not significantly affect the spread rate, it did increase the effectiveness of clearing strategies based on clearing juvenile or sparse vegetation. Based on these tests, it is concluded that the model can be readily applied to different areas, provided the influence of spatial characteristics is understood and accommodated. The Clear model was shown to be a useful tool for evaluating clearing strategies and for investigating invasion rates. It is recommended that the model be introduced to a wider audience, in order to obtain user feedback and further improve the accessibility of the model.
AFRIKAANSE OPSOMMING: Die toenemende probleem van uitheemse indringerplante in Suid Afrika, noodsaak effektiewe besluitneming wat gebaseer is op 'n begrip van die ingewikkelde prosesse wat indringing beheer. As gevolg van die ruimtelike geaardheid van die probleem, is die gebruik van Geografiese Inligtingstelsels en ruimtelike modelle vir die voorspelling van die verspreiding van indringerplante en die evaluasie van die effektiwiteit van opruimingstrategieë in hierdie studie ondersoek. Die Spatially Explicit Individual Based Simulation (SEIBS) model is as 'n moontlike geskikte hulpmiddel vir die bestuur van uitheemse indringerplante geïdentifiseer, alhoewel verdere ondersoeke en ontwikkeling nodig was voordat aanbevelings vir die gebruik van die model gemaak kon word. Vir hierdie studie is die landskapweergawe van die SEIBS model aangepas om die maklike toevoer en afvoer van ruimtelike data te fasiliteer. 'n ArcView uitbreiding is ontwikkel om met die voor- en naprosessering van ruimtelike data, wat deur die model gebruik en geskep is, te fasiliteer. Veranderinge is ook aan die vuur sub-roetine van die module gemaak. Die nuwe weergawe van die model word Clear genoem. 'n Reeks toetse is vir Pinus pinaster gedoen om die sensitiwiteit van die Clear model te toets teenoor ruimtelike resolusie, aanvanklike vlak van versnippering en vlak van heterogeniteit. Vanuit die toetse het dit geblyk dat die model sensitief was ten opsigte van verandering in resolusie en dat die model se parameters verstel moes word wanneer verskillende resolusies gebruik word. Daar is ook gewys dat die die vlak van aanvanklike versnippering 'n groot impak op die verspreidingstempo het. Alhoewel hoër vlakke van ruimtelike heterogeniteit teenoor plantegroei nie 'n merkbare impak op die verspreidingstempo gehad het nie, het dit wel die effektiwiteit van opruiming-strategieë, gebaseer op die opruiming van jong of yl verspreide plante, verbeter. Die gevolgtrekking wat uit die toetse gemaak kan word is dat die model geredelik op verskillende areas toegepas kan word, op die voorwaarde dat die invloed van ruimtelike eienskappe in ag geneem word en in berekening gebring word. Dit word aanbeveel dat die model wyer bekendgestel word om sodoende gebruikersterugvoer te bekom.
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Ballard, Meg. "Insect populations on early successional native and alien plants." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 50 p, 2006. http://proquest.umi.com/pqdweb?did=1203553531&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Theile, H. Lenore. "Invasion of contrasting ecosystems by alien plant species /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18380.pdf.

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Repath, Charles Fitts. "Evaluating and monitoring invasive plant processes." Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/repath/RepathC0505.pdf.

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De, la Fontaine Samantha. "Assessing the values and impacts of invasive alien plants on the livelihoods of rural land-users on the Agulhas Plain, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/95461.

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Thesis (MSc)--Stellenbosch University, 2013.
ENGLISH ABSTRACT: Invasive alien plants (IAPs) are known for their detrimental impacts on biodiversity and ecosystem goods and services. A substantial body of research has contributed to our understanding of their impacts on ecology. In comparison the socio-economic aspects of IAPs, are not well understood. Additionally, valuation practises have usually excluded the positive and the non-monetary impacts (benefits and uses) that IAPs hold for local livelihoods. Holistic valuation has been regarded as imperative for decision-making and managerial frameworks. A study was conducted in Elim on the southern Cape coast of the Agulhas Plain, South Africa, which aimed to explore the various impacts of IAPs on the livelihoods of rural land-users. Individual qualitative interviews were conducted face to face with landholders (referred to as farmers) (N = 12) and individuals from the economically marginalized community (referred to as marginalized community) (N = 12). The grounded theory approach to data analysis was used and results of the coding method used were displayed by means of superscripts. Results indicate that farmers were aware of broader uses of IAPs although they themselves did not utilise them as extensively as members of the marginalized communities. Invasive alien and problem plants that held value for both land-users were not perceived as being „invasive‟. Invasive alien plants were believed to have detrimental impacts on biodiversity and ecosystems goods and services which support people‟s livelihoods. Alien clearing programmes such as Working for Water (WfW) and LandCare have done much to alleviate the socio-economic burden of unemployment in this marginalized community. Aside from the social development aims set out by WfW (i.e. employment of low-income communities, poverty alleviation and skills training), knock-on social development benefits (e.g. feelings of pride, responsibility and awareness as well as conflict management skills) were also realised by individuals from the marginalized community that were previously employed by the programme. Farmers regarded alien clearing and management as a process that demands excessive time, energy and financial resources. On single occasions it was found that farmers employed methods other than the conventional clearing and management strategies (e.g. livestock that feed on IAPs and giving refuse IAP biomass from clearing and felling to neighbouring poor communities). No clear consensus was reached about regarding alien clearing and management but more support is desired from government. Working for Water relies on private landholders for alien clearing as it is required by law. This study emphasizes that stronger relationships between government and private landholders as well as more substantial incentives to clear IAPs on private land are prerequisites if required outcomes are to be achieved. Educating society at large about the detrimental impacts of IAPs is fundamental. Additionally, informing landholders on effective alien clearing methods and policies and legislation pertaining to it are key activities for the South African government. Finally, clearing and management programmes need to consider the benefits that local land-users obtain from IAPs when prioritising areas for the management of alien vegetation.
AFRIKAANSE OPSOMMING: Uitheemse indringerplante (UIPe) is bekend vir die nadelige gevolge wat hulle vir biodiversiteit en ekosisteem goedere en dienste inhou. ʼn Aansienlike liggaam van navorsing het bygedra tot ons begrip van die impak daarvan op ekologie. In teendeel, die sosio-ekonomiese aspekte van UIPe word egter nie goed verstaan nie. Daarbenewens, evalueringspraktyke het gewoonlik die positiewe en nie-monetêre impakte (voordele en gebruike) wat UIPe vir plaaslike lewensbestaan hou, uitgesluit. Holistiese evaluering word as noodsaaklik beskou vir besluitneming en bestuursraamwerke. ʼn Studie was uitgevoer in Elim op die Suid-Kaapse kus van die Agulhas-vlakte, Suid-Afrika. Die doel was om die verskillende aspekte van UIP impakte op die lewensbestaan van landelike grondgebruikers aan te spreek. Individuele kwalitatiewe onderhoude is van aangesig tot aangesig gevoer met grondeienaars (na wie verwys word as boere) (N = 12) en individue van die ekonomies gemarginaliseerde gemeenskap (na wie verwys word as gemarginaliseerde gemeenskap) (N = 12). Die gegronde teorie metode tot data analise was gebruik en die resultate van die kodering metode is vertoon deur middel van boskrifte. Resultate dui daarop dat boere bewus was van ʼn wyer reeks van gebruike van UIPe alhoewel hulle dit nie so ekstensief benut het soos die lede van die gemarginaliseerde gemeenskappe nie. Uitheemse en probleem plante wat waarde gehou het vir beide landgebruikers,was nie soseer beskou as „indringers‟ nie. Daar was geglo dat UIPe nadelige impakte het op biodiversiteit en ekosisteme goedere en dienste wat mense se lewensbestaan ondersteun. Programme soos Werk vir Water (WvW) en LandCare wat fokus op die uitroeiing van UIPe, het baie gedoen om die sosio-ekonomiese laste as ʼn gevolg van werkloosheid in hierdie gemarginaliseerde gemeenskap te verlig. Benewens die sosiale ontwikkelings doelwitte uiteengesit deur WvW (o.a. indiensneming van lae-inkomste gemeenskappe, armoedeverligting en vaardigheidsopleiding), is daar ook domino-voordele (bv. gevoelens van trots, verantwoordelikheid en bewustheid sowel as konflik bestuursvaardighede) aangaande sosiale ontwikkeling ervaar deur individue van die gemarginaliseerde gemeenskap wat voorheen in diens van die program was. Boere beskou die uitroeiing en bestuur van UIPe as ʼn proses wat oormatige tyd, energie en finansiële hulpbronne vereis. Op enkele geleenthede was dit gevind dat boere gebruik maak van metodes anders as die konvensionele skoonmaak-en bestuurs strategieë (bv. vee wat voed op UIPe en biomassa wat na afloop van skoonmaak aan die naburige arm gemeenskappe gegee word). Geen duidelike konsensus is bereik met betrekking tot die uitroeiing en bestuur van UIP nie, maar meer ondersteuning van die regering word verlang. Werk vir Water maak staat op private grondeienaars vir die uitroeiing van UIPe. Hierdie studie beklemtoon dat sterker verhoudings tussen die regering en private grondeienaars sowel as meer aansienlike aansporings om UIPe op private grond skoon te maak ʼn voorvereiste is as verwagte uitkomste bereik wil word. Opvoeding van die breër gemeenskap oor die nadelige impakte van UIPe is fundamenteel. Om grondeienaars in te lig oor effektiewe UIP verwyderingsmetodes asook beleide en wetgewing met betrekking daartoe, is belangrikste aktiwiteite vir die Suid-Afrikaanse regering. Ten slotte, skoonmaak- en bestuursprogramme moet oorweging skenk aan die voordele wat plaaslike landgebruikers put uit UIPe wanneer daar geprioritiseer word vir gebiede vir die bestuur van indringerplante.
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Andreu, Ureta Jara. "Management of alien plants in Spain: from prevention to restoration." Doctoral thesis, Universitat Autònoma de Barcelona, 2012. http://hdl.handle.net/10803/83943.

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Degut als impactes ecològics i socioeconòmics causats per les invasions biològiques, la seva gestió s’ha convertit en un repte important i una prioritat pels gestors mediambientals. A Espanya, la informació sobre la gestió de les plantes exòtiques està força dispersa i, en general, no hi ha gaire flux d’informació entre el món acadèmic i el món de la gestió. Per aquests motius, el principal objectiu d’aquesta tesi ha estat aprofundir en les mesures de gestió de plantes exòtiques a Espanya, identificant les seves principals limitacions. Conèixer aquestes limitacions ens ha dut a plantejar‐nos els següents objectius específics: 1) Identificar les principals plantes exòtiques problemàtiques a Espanya i avaluar els criteris utilitzats a l’hora de prioritzar la seva gestió; 2) Identificar i classificar les espècies potencialment invasores per Espanya; 3) A nivell global, quantificar mitjançant un metaanalisi els impactes de les plantes invasores i les conseqüències de la seva eliminació en les comunitats natives; i 4) Com a cas d’estudi, avaluar l’eficàcia de l’eliminació manual de Carpobrotus sp. a la costa d’Andalusia, i la recuperació de la vegetació nativa. Tenint en compte que les mesures de control i eradicació d’espècies exòtiques són extremadament costoses és molt important prevenir l’entrada i l’establiment d’espècies potencialment invasores, així com garantir l'eficàcia de les mesures de gestió aplicades. Aquesta tesi omple una mica el buit d’informació entre el món acadèmic i el de la gestió, proporcionant informació als gestors ambientals per tal de millorar l’eficàcia de les mesures de gestió aplicades. Les principals conclusions són: I. Les invasions biològiques són considerades pels gestors ambientals un problema de prioritat mitjana i un total de 109 plantes exòtiques problemàtiques han estat gestionades. II. La gestió de les plantes exòtiques s'ha centrat principalment en l'aplicació de mesures de control mecànic o químic a escala local i dissenyades, normalment, amb objectius a curt termini. Existeix, per tant, una manca de mesures de prevenció, mesures de seguiment a llarg termini i de pautes per a la priorització de la gestió d’espècies exòtiques. III. Mitjançant l'ús d'esquemes d'avaluació de riscos, s'ha elaborat una llista preliminar de 80 espècies potencialment invasores per Espanya, sent la jardineria la principal via d’entrada d’aquestes espècies. Les espècies amb les puntuacions més altes han resultat ser principalment plantes aquàtiques, i s’hauria de prohibir la seva entrada i comerç. Chromolaena odorata (Asteraceae) és l’espècie amb les puntuacions més altes i, per tant, podria ser considerada l'espècie amb major risc d'esdevenir invasora a Espanya, en cas que s'introduís al medi natural. IV. Aquesta tesi presenta un marc conceptual que compara llocs envaïts, llocs de referència no envaïts i llocs on una determinada espècie invasora ha estat eliminada. Aquestes comparacions permeten quantificar el impacte de l’espècie invasora en qüestió i supervisar la recuperació de les plantes natives després de la seva eliminació. En estudis científics, aquestes comparacions no solen ser utilitzades de manera combinada, i els llocs de referència són poc emprats per avaluar la recuperació d'espècies natives després de l'eliminació. Creiem que l’ús d’aquest enfocament comparatiu hauria de ser més emprat per supervisar l’eficàcia de les mesures de gestió, perquè a més, permet avaluar els possibles efectes secundaris de les tècniques d'eliminació, així com la necessitat de dur a terme mesures de restauració específiques a posteriori. V. La revisió bibliogràfica global demostra que les plantes invasores són responsables d'una disminució local en la riquesa i abundància d'espècies natives. Això, ha estat corroborat pel cas d’estudi sobre l’eliminació de Carpobrotus, on aquesta espècie també redueix significativament la riquesa d'espècies natives en les comunitats que envaeix. VI. En general, després de l'eliminació de les plantes invasores, la vegetació nativa té el potencial de recuperar‐se fins arribar als nivells desitjats previs a la invasió.
Now that the increasing impacts and costs of invasive species are being recognized, management of alien species has become an important challenge and a high priority for environmental managers. However, in Spain, management information on alien plants is quite scattered and, in general, there is a lack of communication between managers and scientists. The general aim of this thesis has been to investigate the management measures on alien plants carried out in Spain and to identify the main limitations of these measures. Once knowing these limitations the following specific objectives have been addressed: 1) To identify the most problematic invasive plant species in Spain and to assess the main criteria used to prioritize their management; 2) To identify and rank potentially invasive species in Spain, not present in the wild yet; 3) To quantify at a global scale, by means of a meta‐analysis, the impacts of invasive plants as well as the consequences of their removal over native communities, and 4) To evaluate, as a case study, the efficacy of the manual removal of Carpobrotus sp. in the coast of Andalucía, and the recovery of the native vegetation after the alien plant removal. Given that management measures are extremely costly in terms of human, technical and economic resources, it is really important to prevent potential invasive species as well as to guarantee management effectiveness in those cases where prevention is no longer a solution. This thesis have provided clear direction for bridging the current gap between the availability in information on alien plant species and the need for environmental managers to successfully prevent and control invasive species. Specifically, the main conclusions are: 1) Biological invasions are considered by Spanish environmental managers a medium priority problem and a total of 109 noxious alien species are being managed. 2) Management of alien plants in Spain has mainly focused, so far, in the application of either mechanical or chemical control measures at a local scale and mostly with short‐term goals in mind. Thus, there is a lack of preventive measures, absence of long‐term monitoring of control actions and few guidelines for prioritization. 3) By using risk assessment schemes, we have identified a preliminary list of 80 potential invasive species, being gardening the most common pathway of introduction. The species with the highest scores, were mainly aquatic plants, and should be prohibited or kept out of trade. Chromolaena odorata (Asteraceae) obtained the highest scores and therefore it might be the species with the highest risk to become invasive in Spain if introduced. 4) We have presented a conceptual framework that compares invaded, non‐invaded and removal sites to quantify invaders’ impacts and to monitor native plant recovery after their removal. In scientific studies, these comparisons are rarely used in concert, and reference sites are scarcely employed to assess native species recovery after removal. Thus, we believe that this comparative approach should be more frequently used to evaluate management effectiveness because it may also be useful to determine possible side‐effects of removal techniques and whether further restoration measures are necessary. 5) Our global literature review has demonstrated that invasion by alien plants is responsible for a local decline in native species richness and abundance. This has been corroborated by monitoring Carpobrotus invaded sites in coastal dunes of Andalucía, where this species has significantly decreased species richness in the communities it invades. 6) Our global literature review has also indicated that, in general, after alien plant removal, the native vegetation has the potential to recover to a pre‐invasion state. The same trend has been found in the case study of Carpobrotus.
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Books on the topic "Alien planets"

1

World Book, Inc. Alien planets. Chicago, IL: World Book, 2010.

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Laumer, Keith. Alien minds. Riverdale N.Y: Baen Books, 1991.

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Pipe, Jim. Alien. Brookfield, Conn: Copper Beech Books, 1996.

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Johnstone, Michael. Alien attack. London: Madcap, 1997.

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Alien encyclopedia: The ultimate alien A-Z. New York: Scholastic Inc., 2000.

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Planet quest: The epic discovery of alien solar systems. New York: Oxford University Press, 1999.

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Planet quest: The epic discovery of alien solar systems. New York: Free Press, 1997.

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Croswell, Ken. Planet quest: The epic discovery of alien solar systems. San Diego: Harcourt Brace, 1998.

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Planet quest: The epic discovery of alien solar systems. New York: Oxford University Press, 1997.

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Alien impact. New York: St. Martin's, 1997.

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Book chapters on the topic "Alien planets"

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Pont, Frédéric J. "Giant planets." In Alien Skies, 67–82. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8554-4_5.

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Linde, Peter. "A Menagerie of Planets." In The Hunt for Alien Life, 131–71. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24118-0_6.

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Bignami, Giovanni F. "Astronomy in Search of Alien Planets." In We are the Martians, 33–45. Milano: Springer Milan, 2012. http://dx.doi.org/10.1007/978-88-470-2466-3_3.

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Nicol, Danny. "“Lots of Planets Have a North!”: Scottishness, Welshness and Northernness in Doctor Who." In Doctor Who: A British Alien?, 83–115. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-65834-6_3.

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Schulze-Makuch, Dirk. "Extremophiles on Alien Worlds: What Types of Organismic Adaptations are Feasible on Other Planetary Bodies." In Habitability of Other Planets and Satellites, 253–65. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6546-7_14.

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Kitchin, Chris. "On the Track of Alien Planets – Timing (∼1.9% of All Exoplanet Primary Discoveries)." In Exoplanets, 127–31. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_9.

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Kitchin, Chris. "On the Track of Alien Planets – Other Approaches (0% of All Exoplanet Primary Discoveries)." In Exoplanets, 133–42. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_10.

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Kitchin, Chris. "On the Track of Alien Planets – Gravitational Microlensing (∼2.3% of All Exoplanet Primary Discoveries)." In Exoplanets, 119–26. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_8.

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Kitchin, Chris. "On the Track of Alien Planets – The Transit Method (∼23% of All Exoplanet Primary Discoveries)." In Exoplanets, 77–104. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_6.

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Kitchin, Chris. "On the Track of Alien Planets – Direct Imaging and Observation (∼2.9% of All Exoplanet Primary Discoveries or ∼6% if Free Floating Planets are Included)." In Exoplanets, 105–17. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_7.

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Conference papers on the topic "Alien planets"

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Ebel, A. L., S. A. Sheremetova, I. A. Khrustaleva, T. O. Strelnikova, S. I. Mikhailova, and T. V. Ebel. "To the study of alien species in the flora of Khakassia." In Problems of studying the vegetation cover of Siberia. TSU Press, 2020. http://dx.doi.org/10.17223/978-5-94621-927-3-2020-49.

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As a result of the field studies, analysis of publications and herbarium materials, it has been established that by now the alien flora of the Republic of Khakassia includes about 140 species of vascular plants. Of this number, more than 30 species are invasive plants included in the “Black Book of Flora of Siberia” (2016). In recent years, there has been both a fairly rapid replenishment of the flora with alien plants and a noticeable dispersal of a number of invasive species across the territory of Khakassia. For the purpose of monitoring alien plant species, we use the capabilities of the international scientific network iNaturalist.org.
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"Genetic effects of alien chromosome substitution or translocation in common wheat." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-050.

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Zhao, Yan-Bo, and Hong-Wei Yan. "Diffusion pattern of alien invasive plants along Coastal Highway in Liaoning, China." In 2015 3rd International Conference on Advances in Energy and Environmental Science. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/icaees-15.2015.55.

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Uludag, Ahmet, Zubeyde Filiz Arslan, Necmi Aksoy, and Ayse Yazlik. "NEEDS FOR LEGISLATION AND AWARANESS TO COMBAT WITH INVASIVE ALIEN ORNAMENTAL PLANTS." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/108143.

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"Wheat–alien introgression breeding: current status and prospects in the 21st century." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-005.

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Jianmeng, Feng, and Xu Chengdong. "The Impacts of Urbanization on the Spatial Patterns of Alien Plants in Yunnan." In 2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM). IEEE, 2011. http://dx.doi.org/10.1109/cdciem.2011.446.

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Xuedan Wang and Yubao Li. "Evaluation of invasibility of Wenzhou by alien plants at the scale of township." In 2010 2nd Conference on Environmental Science and Information Application Technology (ESIAT). IEEE, 2010. http://dx.doi.org/10.1109/esiat.2010.5567469.

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Arianoutsou, Margarita, Pinelopi Delipetrou, Laura Celesti-Grapow, Corina Basnou, Ioannis Bazos, Yannis Kokkoris, Carlo Blasi, and Monsterrat Vilá. "Alien plants and recipient habitats in the Mediterranean Basin: How similar they are?" In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107390.

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Pyatibratov, M. G., A. S. Syutkin, S. N. Beznosov, A. V. Galeva, and S. Yu Shchyogolev. "Bioengineering of archaeal flagella." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.203.

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It was shown that the Haloferax volcanii flagella assembly system can accept alien flagellins and build functional recombinant flagella. The results can be used for targeted flagella modification to create multifunctional nanomaterials.
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"Field evaluation of different wheat-alien amphiploids in the conditions of the Absheron Peninsula (Azerbaijan)." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Novosibirsk ICG SB RAS 2021, 2021. http://dx.doi.org/10.18699/plantgen2021-165.

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Reports on the topic "Alien planets"

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Jones, Natalie, Miquel Muñoz Cabré, Georgia Piggot, and Michael Lazarus. Tapping the potential of NDCs and LT-LEDS to address fossil fuel production. Stockholm Environment Institute, June 2021. http://dx.doi.org/10.51414/sei2021.010.

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The need for a managed transition away from fossil fuel production raises the question of whether and how countries are addressing this need in their national communications to the UN Framework Convention on Climate Change (UNFCCC). A previous 2019 analysis of the first round of nationally determined contributions (NDCs) and long-term, low-emissions development strategies (LT-LEDS) found that few countries discussed how they would address fossil fuel production as part of their climate mitigation activities. Here, we examine new and updated NDCs and LT-LEDS, finding a growing number of NDCs and LT-LEDS that address fossil fuel production as part of mitigation. For the first time, several countries incorporate policies and/ or pathways for a managed decline of fossil fuel production. In contrast, many others foresee continued or expanded fossil fuel production, with no mention of efforts to prepare for a transition. Opportunities remain for countries to make better use of NDCs and LT-LEDS to align fossil fuel production with the Paris Agreement, including by more comprehensively reflecting on the equity implications of their plans, as well as addressing how countries plan to diversify their economies, ensure a just transition for workers, and cooperate internationally on a managed wind-down of fossil fuel supply. As COP26 approaches, this window of opportunity is still open, but it is rapidly closing.
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