Log in

Relevant bibliographies by topics / Conservation in situ / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Conservation in situ.

Dissertations / Theses on the topic 'Conservation in situ'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Conservation in situ.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Kunde, Miriam Nora. "Ex-situ and In-situ Conservation Approach for the Malayan Sun Bear (Helarctos malayanus)." Thesis, Griffith University, 2017. http://hdl.handle.net/10072/373043.

Full text

Abstract:

Habitat loss and fragmentation, the illegal wildlife trade and exploitation for Traditional Chinese Medicine (TCM) threaten the sun bear (Helarctos malayanus) with extinction. The confiscation or rescue of bears affected by each of these threats results in an ethical dilemma for conservation practitioners as they must decide over the fate of the confiscated bear and which decision is in the interest of long-term species survival. To understand the conservation status of any species, it is essential to have access to as much long-term information as possible. This requires a standardized approa

APA, Harvard, Vancouver, ISO, and other styles

2

CUENA, LOMBRANA ALBA. "Integrated in situ and ex situ approach for Gentiana lutea L. ssp. lutea conservation." Doctoral thesis, Università degli Studi di Cagliari, 2016. http://hdl.handle.net/11584/266729.

Full text

Abstract:

Gentiana lutea L. subsp lutea (hereafter G. lutea) is a long-lived geophyte, which has high medicinal value for the intensely bitter properties residing mainly in the root, being the main vegetable bitter employed in homeopathy and for the liqueurs production. G. lutea is presented in the Annex V of the Directive 92/43/EEC. In addition, it’s included in the List of endangered medicinal plants in the Annex D to the Council Regulation (EC) No. 338/97 of EU, whose purpose is the protection of plant species by control of their trade. Due to a lack of knowledge on the current G. lutea distrib

APA, Harvard, Vancouver, ISO, and other styles

3

Pournou, Anastasia. "In situ protection and conservation of the Zakynthos wreck." Thesis, University of Portsmouth, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Kambaj, Kambol Oliver. "In situ and ex situ soil respiration in natural, Acacia-invaded and cleared riparian ecotones in the Fynbos Biome." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79854.

Full text

Abstract:

Thesis (MScConEcol)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Soil respiration (Rs) is a major component of CO2 emissions and the global carbon balance. In the context of global change it of interest to understand seasonal patterns of RS in fynbos riparian ecosystems, particularly in invaded-riparian ecotones of these Mediterranean type ecosystems (MTE's) in the Western Cape, South Africa. Riparian ecotones are three dimensional transitional zones that provide multiple ecosystem services and functions and they act as the linkage between terrestrial and aquatic ecosystems where key e

APA, Harvard, Vancouver, ISO, and other styles

5

Michaels, Christopher. "Evidence based ex situ husbandry for captive amphibians." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/evidence-based-ex-situ-husbandry-for-captive-amphibians(54a41c4e-a6cb-471c-8c16-ef012f61cd35).html.

Full text

Abstract:

Amphibians are declining worldwide in response to pressures that are too numerous, difficult and rapid to ameliorate in the wild before some taxa become extinct. Ex situ conservation, whereby animals are maintained in captivity until threats in the wild have been resolved, is the only means of saving up to five hundred amphibian species. Amongst political, financial and practical hurdles, the most fundamental problem for these programmes is lack of knowledge about how to maintain species successfully in captivity. Captive populations have failed to survive or reproduce and, furthermore, captiv

APA, Harvard, Vancouver, ISO, and other styles

6

Danilovic, Vladimir <1975&gt. "IN-SITU CONSERVATION OF THE SHIPWRECKS IN THE MEDITERRANEAN SEA." Master's Degree Thesis, Università Ca' Foscari Venezia, 2014. http://hdl.handle.net/10579/5482.

Full text

Abstract:

ABSTRACT The main objective of this thesis is to carry out a complete analysis of all the key factors that positively or negatively affect the conservation of archaeological material in order to find the best possible way for the implementation of in-situ conservation of shipwrecks in the Mediterranean Sea. It must be kept in mind that in-situ conservation in the Mediterranean Sea is a very complicated process that requires a multidisciplinary approach and analysis of the most important parameters and factors. For this reason it was necessary to break down the entire problem into its basic c

APA, Harvard, Vancouver, ISO, and other styles

7

Hoey, Erin M. "Out of Site, But Not Out of Mind: The Conservation and Display of Ancient Roman Floor Mosaics in Situ and in Museums." Scholarship @ Claremont, 2016. http://scholarship.claremont.edu/scripps_theses/842.

Full text

Abstract:

This thesis explores the display of Roman floor mosaics in museums and in situ. Taking the original mosaic to museums for display and protection, and replacing them on site with replicas, is best for the preservation of the original material and its context.

APA, Harvard, Vancouver, ISO, and other styles

8

Sandri, Camillo <1970&gt. "Can gut microbiota analysis be beneficial for ex-situ and in-situ conservation of threatened animal species?" Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9979/1/Camillo%20Sandri%20TESI%20Dottorato%2030.09.21.pdf.

Full text

Abstract:

Ex-situ conservation and the in-situ conservation of natural habitats are the tools to conserve biodiversity. Habitats and ecosystems have been becoming altered by human activities and a growing number of species requires form of management to ensure their survival. Conservation queries become more complex and urgent. Developing scientifically based and innovative approaches to ex-situ conservation is necessary. Recent studies underline importance of gut microbiome in animal health with implications for animal conservation and management. Animal and human studies have demonstrated that environ

APA, Harvard, Vancouver, ISO, and other styles

9

Millner, Helen Jean. "Reproductive biology and ex situ conservation of the genus Restrepia (Orchidaeae)." Thesis, University of Wolverhampton, 2013. http://hdl.handle.net/2436/311706.

Full text

Abstract:

The genus Restrepia is well known to orchid enthusiasts but its micromorphology has not been described, and its pollination and breeding systems have not been investigated. The aim of this investigation was, therefore, to add to existing knowledge so that the resultant data could be used to facilitate ex situ conservation initiatives. A detailed electron microscopy study (SEM) of the floral organs was performed. This confirmed the structure of the dorsal sepal and lateral petal osmophores, their secretory nature together with that of the synsepal and the labellum. It was postulated how, by man

APA, Harvard, Vancouver, ISO, and other styles

10

Teeling, Claire. "In situ conservation of wild cherry (Prunus avium L.) in Europe." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/4390/.

Full text

Abstract:

The aim of this project was to combine species distribution modelling (SDM) with the results of a molecular genetic diversity study to make suggestions for sites on which to locate genetic reserves. This work was complemented by a molecular genetic diversity and a forest management policy study, to examine the potential for in situ conservation of the crop wild relative species, Prunus avium. In order to identify the species distribution, the most widely available occurrence data were in the form of historical records, gathered from online repositories and herbaria. A selection of environmenta

APA, Harvard, Vancouver, ISO, and other styles

11

Philpott, Megan. "The Genetic Consequences of ex situ Conservation of Exceptional Plant Species." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535467395352645.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Cerbin, Adriana Cerbin Linda. "In Situ Conservation Through the Eyes of the Zoo Visitor: Examining Visitor Awareness and Support of the North Carolina Zoological Parkâs Participation in In Situ Conservation Projects." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-03272009-144806/.

Full text

Abstract:

Zoo officials have for many years participated in ex situ conservation activities. Recently however, a growing number of zoos have shown an interest in becoming involved with in situ conservation projects. One such zoo is the North Carolina Zoological Park (NCZP) in Asheboro, NC. NCZP officials have committed to several of these projects and are aware of their importance. However, little is known about how visitors regard these activities. The two research questions asked were: 1) Are visitors aware of the NCZPâs involvement in in situ conservation efforts? and 2) Do patronsâ of the NCZP suppo

APA, Harvard, Vancouver, ISO, and other styles

13

Cambuim, José [UNESP]. "Fragmentos florestais e testes de progênies: opções para a coleta de sementes em espécies arbóreas nativas do Cerrado no Bolsão Sul-Mato-Grossense." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151021.

Full text

Abstract:

Submitted by Jose Cambuim null (jcambuim@adm.feis.unesp.br) on 2017-06-30T14:04:04Z No. of bitstreams: 1 Jose_Cambuim_2017_Doc_Agronomia_VF.pdf: 2793103 bytes, checksum: 1e3d9b4c1f86030fbfa1d8761130e797 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-06-30T14:29:58Z (GMT) No. of bitstreams: 1 cambuim_j_dr_ilha.pdf: 2793103 bytes, checksum: 1e3d9b4c1f86030fbfa1d8761130e797 (MD5)<br>Made available in DSpace on 2017-06-30T14:29:58Z (GMT). No. of bitstreams: 1 cambuim_j_dr_ilha.pdf: 2793103 bytes, checksum: 1e3d9b4c1f86030fbfa1d8761130e797 (MD5) Prev

APA, Harvard, Vancouver, ISO, and other styles

14

Cambuim, José. "Fragmentos florestais e testes de progênies : opções para a coleta de sementes em espécies arbóreas nativas do Cerrado no Bolsão Sul-Mato-Grossense /." Ilha Solteira, 2017. http://hdl.handle.net/11449/151021.

Full text

Abstract:

Orientador: Mario Luiz Teixeira de Moraes<br>Abstract: The forest fragment and progeny tests, with the function of assisting conservation, rehabilitation of ecological processes and promoting biodiversity conservation, play an important role in the restoration of degraded areas and reduce the negative effects of the destruction of natural environments. This work aimed to know the population structure, spatial distribution and effective size of native tree species present in a cerrado forest fragment, besides estimating the genetic variability in a test of mixed progenies of Myracrodruon urunde

APA, Harvard, Vancouver, ISO, and other styles

15

Routson, Rafael Joan. "Conservation of Agro-biodiversity in Baja California Oases." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/228179.

Full text

Abstract:

Agro-biodiversity in the desert oases of Baja California, Mexico is a product of isolation and integration through time and across the various spaces of the peninsula. The oases hold heirloom perennial crop species first introduced by Jesuit missionaries (1697-1768) and represent geographies of historical dissemination. I selected fifteen Jesuit mission oases and surveyed the oasis gardens for species richness and abundance. To understand the cultural, political and economic forces that create these patterns of persistence within the oases, I conducted interviews on farming system practices, g

APA, Harvard, Vancouver, ISO, and other styles

16

Vincent, Holly A. "Developing methodologies for the global in situ conservation of crop wild relatives." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/7126/.

Full text

Abstract:

Climate change is predicted to have far-reaching deleterious impacts worldwide; agriculture in particular is expected to be effected by significant loss of suitable land and crop yields in the world’s most populous and poorest regions. Crop wild relatives (CWR) are a rich source of underutilised genetic diversity which could help to mitigate climate change for agriculture through breeding new resilient varieties. However, CWR are under-conserved and threatened in the wild. This thesis researches and develops systematic methodologies to advance knowledge and support action on in situ CWR conser

APA, Harvard, Vancouver, ISO, and other styles

17

Negim, Osama Le Coustumer Philippe Mench Michel. "New technique for soil reclamation and conservation in situ stabilisation of trace elements in contaminated soils /." S. l. : S. n, 2009. http://ori-oai.u-bordeaux1.fr/pdf/2009/NEGIM_OSAMA_2009.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Kruzich, Tyler Joseph. "Why do households cultivate landraces? Wheat variety selection and in situ conservation in Turkey /." Thesis, Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/kruzich/KruzichT0506.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Ogilvy, Victoria. "The influence of carotenoids on fitness related traits in anurans : implications for ex situ conservation." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/the-influence-of-carotenoids-on-fitness-related-traits-in-anurans-implications-for-ex-situ-conservation(f1f58dbc-77ba-4a34-9378-886a215191a0).html.

Full text

Abstract:

Amphibians are facing an extinction crisis, and in many cases it has become necessary to conserve species in captivity. Unfortunately, our understanding of the nutritional requirements of amphibians in captivity is currently limited. There have been anecdotal reports that captive bred amphibians have duller skin colouration than wild members of the same species. Many amphibians use carotenoid pigments in skin colouration. Carotenoids are yellow-red pigments synthesised by photosynthetic tissues, however vertebrates cannot synthesise them de novo and rely entirely on dietary sources. Reduced co

APA, Harvard, Vancouver, ISO, and other styles

20

Fenzi, Marianna. "« Provincialiser » la Révolution Verte : savoirs, politiques et pratiques de la conservation de la biodiversité cultivée (1943-2015)." Thesis, Paris, EHESS, 2017. http://www.theses.fr/2017EHES0143.

Full text

Abstract:

Le problème de l’accès aux ressources génétiques des plantes pour la sélection variétale est au cœur de la Révolution Verte. A partir des années 1960, les sélectionneurs font de la disparition des variétés locales sous l’effet de la diffusion de nouvelles variétés génétiquement homogènes un problème public à l’échelle mondiale. Dans une perspective qui croise la recherche d’archives et l’enquête de terrain, cette thèse revient sur la formation de ce problème, sur sa trajectoire historique et ses enjeux actuels. Il s’agit d’analyser l’hétérogénéité des savoirs scientifiques et des approches qui

APA, Harvard, Vancouver, ISO, and other styles

21

Kashimshetty, Yamini. "Population growth and genetic diversity dynamics of modeled conservation methodologies for threatened plant species." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1468512768.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Ertosun, Isil Atiye. "Evaluation Of Protective Structures In Archaeological Sites For In Situ Conservation Of Architectural Remains And Artifacts." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614955/index.pdf.

Full text

Abstract:

Artifacts are moved to museums after the excavations in order to provide an indoor protection, while the immovable findings remain exposed to environmental conditions and human activity. In order to conserve these architectural remains made of vulnerable material, mosaics and wall paintings in situ, covering structures are designed offering temporary or long-term sheltering, preserving and exhibiting facilities. The aim of the study is to evaluate these protective structures. In this study, national and international approaches in the conservation of archaeological sites are studied in order t

APA, Harvard, Vancouver, ISO, and other styles

23

Negim, Osama. "New Technique for Soil Reclamation and Conservation: In Situ Stabilization of Trace Elements in Contaminated Soils." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2009. http://tel.archives-ouvertes.fr/tel-00408020.

Full text

Abstract:

L'accumulation de métaux toxiques dans le sol est principalement héritée de matériaux parents ou d'éléments résultant de l'activité humaine. Par conséquent, de nouvelles techniques sont en cours d'élaboration pour remédier à ces contaminations dans les sols pollués, telles que la phytoremédiation et la stabilisation in situ. La stabilisation in situ est une technique commune de réduction des effets négatifs des métaux et métalloïdes, tels que As, Cr, Cu, Cd et Zn dans les sols contaminés par l'ajout d'amendements. L'application de matières alcalines telles que les laitiers d'aciéries et un lai

APA, Harvard, Vancouver, ISO, and other styles

24

Negim, Osama. "New technique for soil reclamation and conservation : in situ stabilisation of trace elements in contaminated soils." Thesis, Bordeaux 1, 2009. http://www.theses.fr/2009BOR13821/document.

Full text

Abstract:

Les sols sous contraintes que ce soit du point de vue charges polluantes comme avec les Métaux Traces (MT) ou bien du point de vue stress hydrique (perte des capacités de rétention menant à la désertification des sols) concernent de nombreux espaces du territoire national, de même que la région du pourtour Méditerranéen. Le nombre de sites pollués par des substances inorganiques affectant de larges espaces est en constante augmentation. Les stratégies pour leur rémédiation sont variées mais très peu envisagent la dépollution tout en restaurant les propriétés pédologiques des sols concernés. La

APA, Harvard, Vancouver, ISO, and other styles

25

Kyle, Rebecca Kate. "Assessing the vulnerabilities of early life stages of Margaritifera margaritifera with respect to ex-situ conservation." Thesis, Queen's University Belfast, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.707807.

Full text

Abstract:

Freshwater pearl mussel (Margaritifera margaritifera) population declines in Northern Ireland led to an ex situ breeding programme being established on the Ballinderry River in 1998 by the Ballinderry Rivers Trust. If the causes of the initial threats or declines have been remedied it is recommended that captive- bred individuals are returned to their natural habitat to help avoid domestication by not retaining them in captivity for extended periods. Mussel silos (upwelling mussel housing system) were found to be a useful intermediate release method with a mean survival rate of 81%. Difference

APA, Harvard, Vancouver, ISO, and other styles

26

Dyer, Leal George Allen. "The cost of in situ conservation of maize landraces in the Sierra Norte de Puebla, Mexico /." Connect to Digital dissertations. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Hamilton, Kim Nicole. "Ex Situ Conservation of Australian Citrus Species: Investigations on Seed Biology, Cryopreservation and in Vitro Culture." Thesis, Griffith University, 2007. http://hdl.handle.net/10072/365585.

Full text

Abstract:

Many potentially economically important taxa of Australia are threatened in situ and are vulnerable to erosion of genetic diversity and extinction. In this study, over one hundred rare and threatened Queensland edible plants and/or crop wild relatives were identified. Many of these species have subtropical to tropical distribution and may have non-orthodox seed storage behaviour, thus excluding standard seed banking approaches for long-term ex situ conservation. There is an urgent need to develop alternative ex situ conservation strategies to conserve this diversity. Establishment of ex-situ

APA, Harvard, Vancouver, ISO, and other styles

28

GUZZON, FILIPPO. "Seed ecology and ex situ conservation of Aegilops and Citrullus in the context of climate change." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1249549.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Jule, Kristen. "Effects of captivity and implications for ex-situ conservation : with special reference to red panda (Ailurus fulgens)." Thesis, University of Exeter, 2008. http://hdl.handle.net/10036/65554.

Full text

Abstract:

This PhD thesis aims to improve the ex situ conservation of threatened and endangered species by investigating the effects of captivity and improving the methodology of current conservation techniques. The use of reintroduction as a tool for the purpose of conserving species is becoming increasingly popular. Since many wild populations are declining, captive-bred stock are frequently used to restore or supplement wild populations. Evidence suggests that captive-bred animals are less successful than their wild counterparts, but this has not been recently reviewed and there is limited research i

APA, Harvard, Vancouver, ISO, and other styles

30

Carreira, Salomé Freire. "Programa de conservação ex situ de Lynx pardinus -Temminck, 1827 : avaliação da eficácia do protocolo de medicina preventiva no controlo da carga parasitária no lince ibérico e sua presa Oryctolagus cuniculus (Linnaeus, 1758) no Centro Nacional de Reprodução do Lince Ibérico, em Portugal." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2018. http://hdl.handle.net/10400.5/15310.

Full text

Abstract:

Dissertação de Mestrado Integrado em Medicina Veterinária<br>O lince ibérico (Lynx pardinus) é um felino de porte médio endémico da Península Ibérica, classificado como “criticamente em perigo” em Portugal. A nível nacional, a conservação ex situ acontece no Centro Nacional de Reprodução do Lince Ibérico (CNRLI), no sul de Portugal (Silves). Este estudo teve como principal objetivo a avaliação do protocolo de desparasitação incluído nas medidas preventivas do CNRLI. O protocolo de desparasitação foi avaliado pela colheita de 308 amostras de fezes, 11 amostras de sangue e 13 amostras de pelo

APA, Harvard, Vancouver, ISO, and other styles

31

Lira, Cleomar Ferreira Santos. "A Implementação de unidades de conservação de proteção integral: o caso do parque ecológico da lagoa da Maraponga/Ceará Fortaleza." reponame:Repositório Institucional da UFC, 2006. http://www.repositorio.ufc.br/handle/riufc/16465.

Full text

Abstract:

LIRA, Cleomar Ferreira Santos. A Implementação de unidades de conservação de proteção integral: o caso do parque ecológico da lagoa da Maraponga/Ceará Fortaleza . 2006. 108 f. : Dissertação (mestrado) - Universidade Federal do Ceará, Pró-Reitoria de Pesquisa e Pós-Graduação, Mestrado em Desenvolvimento e Meio Ambiente - PRODEMA, Fortaleza-CE, 2006.<br>Submitted by demia Maia (demiamlm@gmail.com) on 2016-04-28T13:55:19Z No. of bitstreams: 1 2006_dis_cfslira.pdf: 5436489 bytes, checksum: 1b73091e4eb3df7061d4043c4a2713bf (MD5)<br>Approved for entry into archive by demia Maia (demiamlm@gmail.com)

APA, Harvard, Vancouver, ISO, and other styles

32

Hryhorenko, Lesia. "Analysis of In-Situ Authorship: A Study On The Representation Of Commonly Marginalized Authors." Otterbein University Distinction Theses / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=otbndist1620462738167087.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Silva, Carla Antónia Mendes. "Optimização dos testes de germinação para monitorização das colecções de plantas autóctones conservadas em bancos de sementes." Master's thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5364.

Full text

Abstract:

Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia<br>With the aim to contribute to the optimization of germination tests to monitor the seed collections of native plants conserved in seed banks, germination percentage, germination rate (T50) and lenght of the germination period (T10-90) were evaluated in 16 species studied on four temperatures 15°C, 20°C, 25ºC and 15º/25 ºC. The species were subject to pre-germination treatments to break dormancy: cold stratification (30 days) at 4°C in Scrophulariaceae and Umbelliferae, mechanical scarification in Malvaceae, and Fabaceae, a

APA, Harvard, Vancouver, ISO, and other styles

34

Sopelsa, Hall Emma. "Ex situ lion conservation : Behavioural responses to playbacks of competitors with focus on sex and age differences." Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-67338.

Full text

Abstract:

Due to increasing habitat loss, human-lion conflict, poaching and other reasons, African lion (Panthera leo) populations have suffered a drastic decline. The African Lion and Environmental Research Trust (ALERT) is working to stop this pattern and is the first organization with an ex-situ conservation project for lions. Before releasing lions raised by captive-bred adults, they must first be ensured to behave properly to make sure they have the highest chance of survival. One challenge in the wild is encountering and competition with unknown conspecifics. By conducting playback of unfamiliar l

APA, Harvard, Vancouver, ISO, and other styles

35

Juan, Vicedo Jorge. "In vitro propagation and ex situ conservation of the Western-Mediterranean endemic species Lapiedra martinezii Lag. (Amaryllidaceae)." Doctoral thesis, Universidad de Alicante, 2016. http://hdl.handle.net/10045/70217.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Bérubé, Marc-André. "Optimisations des paramètres de polymérisation in situ d'un système glycérol/acide citrique et bois." Master's thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/27723.

Full text

Abstract:

Les produits de bois à des fins de parement subissent une dégradation accélérée face aux conditions atmosphériques comparativement aux autres produits de finition extérieurs. Cette dégradation entraine une perte de la stabilité dimensionnelle. Le bois doit être modifié afin d’ajouter de la valeur au produit et de contrer la dégradation naturelle. L’approche privilégiée consiste en l’imprégnation du bois par un mélange d’acide citrique et de glycérol pouvant réagir à de hautes températures formant un polymère réticulé. L’optimisation de ce traitement, bien que permettant d’augmenter la stabilit

APA, Harvard, Vancouver, ISO, and other styles

37

Griffiths, Alistair James Kenneth. "The ex-situ conservation of endemic Seychelles plant species : Impatiens gordonii Horne ex Baker as a case study." Thesis, University of Reading, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494979.

Full text

Abstract:

The role of ex-situ conservation in the species recovery plan for Impatiens gordonii was evaluated. Phylogenetic analyses including seven new sequences and published data for I. gordonii and its congeners showed the East African species I. usambarensis is sister to I. gordonii, with I. waileriana sister to that species pair. Nine herbarium samples and 18 live plants of /. usambarensis, I. waileriana, I. gordonii and I. thomassetii were scoored for 21 morphometric characters.

APA, Harvard, Vancouver, ISO, and other styles

38

Favoretto, Gabriela Rodrigues. "Comportamento de arara-azul-de-lear (Anodorhynchus leari, Bonaparte, 1856) em cativeiro e a influência da técnica flocking na interação de pares." Universidade Federal de São Carlos, 2016. https://repositorio.ufscar.br/handle/ufscar/8079.

Full text

Abstract:

Submitted by Caroline Periotto (carol@ufscar.br) on 2016-10-10T15:06:40Z No. of bitstreams: 1 DissGRF.pdf: 3437375 bytes, checksum: 6462dc22eaf7cf1e73ecf9875bbef4d9 (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-10-20T19:50:19Z (GMT) No. of bitstreams: 1 DissGRF.pdf: 3437375 bytes, checksum: 6462dc22eaf7cf1e73ecf9875bbef4d9 (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-10-20T19:50:26Z (GMT) No. of bitstreams: 1 DissGRF.pdf: 3437375 bytes, checksum: 6462dc22eaf7cf1e73ecf9875bbef4d9 (MD5)<br>Made available in

APA, Harvard, Vancouver, ISO, and other styles

39

Fant, Jeremie Benjamin. "The conservation and maintenance of genetic diversity, both in situ and ex situ : a study of wild populations of Potamogeton and a composite cross population of barley, Hordeum vulgare." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621570.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Luz, Kelly Cristina da [UNESP]. "Variação genética entre e dentro de populações de dipteryx alata vog. para caracteres morformétricos de plântulas, frutos e sementes." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144582.

Full text

Abstract:

Submitted by KELLY CRISTINA DA LUZ null (kellynha_luz@hotmail.com) on 2016-11-02T21:42:31Z No. of bitstreams: 1 Kelly Cristina da Luz Final.pdf: 1753561 bytes, checksum: ff74f3975a428e6703ecf23e56e0c45d (MD5)<br>Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-11-10T12:33:48Z (GMT) No. of bitstreams: 1 luz_kc_me_ilha.pdf: 1753561 bytes, checksum: ff74f3975a428e6703ecf23e56e0c45d (MD5)<br>Made available in DSpace on 2016-11-10T12:33:48Z (GMT). No. of bitstreams: 1 luz_kc_me_ilha.pdf: 1753561 bytes, checksum: ff74f3975a428e6703ecf23e56e0c45d (MD5)

APA, Harvard, Vancouver, ISO, and other styles

41

Luz, Kelly Cristina da. "Variação genética entre e dentro de populações de dipteryx alata vog. para caracteres morformétricos de plântulas, frutos e sementes /." Ilha Solteira, 2016. http://hdl.handle.net/11449/144582.

Full text

Abstract:

Orientador: Miguel Luiz Menezes Freitas<br>Resumo: Dipteryx alata is considered endemic species of the Brazilian Cerrado. Currently the species needs attention by the increased fragmentation of the occurrence area. It stands out for presenting resistant wood and the high production of fruits. The aim of the study was to estimate genetic parameters from the morphometric fruits, seeds and seedlings, to provide information of genetic variability within and between species provenances for future breeding programs and conservation. The fruits were collected in three natural populations, as Campo Gr

APA, Harvard, Vancouver, ISO, and other styles

42

Jensen, Helen. "Ongoing domestication: in situ conservation and microevolution of a traditional barley variety (Hordeum vulgare ssp. vulgare) in northern Morocco." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117040.

Full text

Abstract:

Recent evidence indicates that the domestication of crop plants is a protracted and ongoing process, with changes in selection pressure (e.g., selection for a particular trait, cultivation in a new environment, disease pressure) resulting in microevolutionary changes. The interaction between humans and crops is a major driver of crop plant evolution, with a strong influence on gene flow and selection. For this reason, conservation of crop varieties in situ (on-farm) is considered important to maintain the adaptation of crop varieties to a diversity of different environmental conditions, cultur

APA, Harvard, Vancouver, ISO, and other styles

43

Pouakouyou, Daniel. "The reproductive biology of Prunus africana (Rosaceae) on Mount Cameroon and its implications for in situ conservation and management." Thesis, Bangor University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394986.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Rodrigues, Eduardo Borges. "Variabilidade genética populacional em variedades botânicas de Hancornia speciosa Gomes (Apocynaceae): estratégias para conservação no cerrado." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/7321.

Full text

Abstract:

Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-05-15T14:20:20Z No. of bitstreams: 2 Tese - Eduardo Borges Rodrigues - 2015.pdf: 9125697 bytes, checksum: ed8c8884fa466f6ff0b1386e98f326df (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-05-15T14:21:10Z (GMT) No. of bitstreams: 2 Tese - Eduardo Borges Rodrigues - 2015.pdf: 9125697 bytes, checksum: ed8c8884fa466f6ff0b1386e98f326df (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available i

APA, Harvard, Vancouver, ISO, and other styles

45

Arrendal, Johanna. "Conservation Genetics of the Eurasian Otter in Sweden." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7633.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Filho, Jaime Miguel de AraÃjo. "Curva de desidrataÃÃo e degradaÃÃo in situ do feno de forrageiras nativas da caatinga cearense." Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=4314.

Full text

Abstract:

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>O estudo do valor nutritivo de forrageiras nativas da caatinga Ã fundamental para a sustentabilidade de sistemas de produÃÃo no semi-Ãrido, destacando-se o potencial forrageiro dessas espÃcies. Com a realizaÃÃo deste trabalho objetivou-se estimar o tempo de desidrataÃÃo e o valor nutritivo dos fenos de marmeleiro (Croton sonderianus Muell.Arg.), mata-pasto (Senna obtusifolia), mororÃ (Bauhinia cheilantha Bong.) e sabiÃ (Mimosa caesalpiniifolia Benth) atravÃs da determinaÃÃo da composiÃÃo bromatolÃgica e comportamento da degradaÃÃo

APA, Harvard, Vancouver, ISO, and other styles

47

Araújo, Filho Jaime Miguel de. "Curva de desidratação e degradação in situ do feno de forrageiras nativas da caatinga cearense." reponame:Repositório Institucional da UFC, 2008. http://www.repositorio.ufc.br/handle/riufc/17122.

Full text

Abstract:

ARAÚJO FILHO, Jaime Miguel de. Curva de desidratação e degradação in situ do feno de forrageiras nativas da caatinga cearense. 2008. 55 f. Dissertação (Mestrado em zootecnia)- Universidade Federal do Ceará, Fortaleza-CE, 2008.<br>Submitted by Elineudson Ribeiro (elineudsonr@gmail.com) on 2016-05-17T19:43:30Z No. of bitstreams: 1 2008_dis_jmaraujofilho.pdf: 315765 bytes, checksum: 0f959227113924d573335d0a413e3206 (MD5)<br>Approved for entry into archive by José Jairo Viana de Sousa (jairo@ufc.br) on 2016-05-27T20:02:45Z (GMT) No. of bitstreams: 1 2008_dis_jmaraujofilho.pdf: 315765 bytes, checks

APA, Harvard, Vancouver, ISO, and other styles

48

RIBEIRO, Carla Sibere Nogueira. "Caracterização in situ, molecular e morfológica de acessos de Gossypium do Estado de Pernambuco." Universidade Federal Rural de Pernambuco, 2008. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6197.

Full text

Abstract:

Submitted by (ana.araujo@ufrpe.br) on 2017-02-06T16:09:00Z No. of bitstreams: 1 Carla Sibere Nogueira Ribeiro.pdf: 1627886 bytes, checksum: d308c35b334df86939e3a2810d83adf2 (MD5)<br>Made available in DSpace on 2017-02-06T16:09:00Z (GMT). No. of bitstreams: 1 Carla Sibere Nogueira Ribeiro.pdf: 1627886 bytes, checksum: d308c35b334df86939e3a2810d83adf2 (MD5) Previous issue date: 2008-08-04<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>Cotton (G. hirsutum L.) has the most important natural textile fiber in the world. The Gossypium remainders in Pernambuc

APA, Harvard, Vancouver, ISO, and other styles

49

Castro, Rodrigo Soares de. "Variação genética quantitativa e estrutura populacional de Hymenaea stigonocarpa (Mart. Ex Hayne) no cerrado." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/6573.

Full text

Abstract:

Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2016-12-07T16:22:53Z No. of bitstreams: 2 Tese - Rodrigo Soares de Castro - 2016.pdf: 5776299 bytes, checksum: 5c221af09289c691e9ae2d0146748a62 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2016-12-13T15:38:02Z (GMT) No. of bitstreams: 2 Tese - Rodrigo Soares de Castro - 2016.pdf: 5776299 bytes, checksum: 5c221af09289c691e9ae2d0146748a62 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made availabl

APA, Harvard, Vancouver, ISO, and other styles

50

Harmon, Amanda Lauren Leslie. "Herbarium Collections Management Internship." Miami University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=miami1524744021639645.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!