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Статті в журналах з теми "Specie non indigene"
Dowe, JL, and P. Cabalion. "A taxonomic account of Arecaceae in Vanuatu, with descriptions of three new species." Australian Systematic Botany 9, no. 1 (1996): 1. http://dx.doi.org/10.1071/sb9960001.
Повний текст джерелаLévesque, Mathieu, Andreas Rigling, and Peter Brang. "Réponse à la sécheresse de conifères indigènes et exotiques: une étude dendroécologique." Schweizerische Zeitschrift fur Forstwesen 166, no. 6 (June 1, 2015): 372–79. http://dx.doi.org/10.3188/szf.2015.0372.
Повний текст джерелаOriani, Aldo. "Dati storici sulla presenza circummediterranea del francolino nero Francolinus francolinus francolinus (Linnaeus, 1766)." Rivista Italiana di Ornitologia 84, no. 1 (March 20, 2015): 11. http://dx.doi.org/10.4081/rio.2014.217.
Повний текст джерелаTene Kenne, Lacatuce, Marie Caroline Solefack Momo, and Bertine Tiokeng. "Structure et régénération des peuplements ligneux dans l’Unité Forestière d’Aménagement (UFA) 00-004 dans le Littoral-Cameroun." Cameroon Journal of Experimental Biology 16, no. 1 (January 25, 2023): 27–35. http://dx.doi.org/10.4314/cajeb.v16i1.4.
Повний текст джерелаPlowright, Richard A., Daniel L. Coyne, Paula Nash, and Monty P. Jones. "Resistance to the rice nematodes Heterodera sacchari, Meloidogyne graminicola and M. incognita in Oryza glaberrima and O. glaberrima x O. sativa interspecific hybrids." Nematology 1, no. 7 (1999): 745–51. http://dx.doi.org/10.1163/156854199508775.
Повний текст джерелаFernanda Derlan, Patrícia, and Juliano Andres. "Uso da terra e cobertura florestal na Terra Indígena Mangueirinha/PR: Uma análise do período de 1975 a 2019." AMBIENTES: Revista de Geografia e Ecologia Política 4, no. 2 (December 28, 2022): 262–318. http://dx.doi.org/10.48075/amb.v4i2.30325.
Повний текст джерелаAdams, Matthew. "Indigenizing the Anthropocene? Specifying and situating multi-species encounters." International Journal of Sociology and Social Policy ahead-of-print, ahead-of-print (November 18, 2019). http://dx.doi.org/10.1108/ijssp-04-2019-0084.
Повний текст джерелаKaur, Ramandeep, and Joginder Singh. "Toxicity, Monitoring, and Biodegradation of Cypermethrin Insecticide: A Review." Nature Environment and Pollution Technology 20, no. 5 (December 25, 2021). http://dx.doi.org/10.46488/nept.2021.v20i05.016.
Повний текст джерелаScarpa, Federica. "Sustainable Blue Arctic (Seal) Hunting." Nordicum-Mediterraneum 16, no. 4b (2022). http://dx.doi.org/10.33112/nm.16.4.3.
Повний текст джерелаBabayemi, O. J., and A. A. Adebayo. "Assessment of nutritive value of selectively grazed forbs by cattle in communal grazing land of Ido Local Government Area, Oyo state, Nigeria." Nigerian Journal of Animal Production 47, no. 5 (December 31, 2020). http://dx.doi.org/10.51791/njap.v47i5.1264.
Повний текст джерелаДисертації з теми "Specie non indigene"
Virgilio, Damiano. "Studio della comunità microfitoplanctonica del Golfo di Trieste (Mare Adriatico Settentrionale): utilizzo di una serie storica con particolare riguardo al fenomeno dell'introduzione di taxa alloctoni." Doctoral thesis, Università degli studi di Trieste, 2008. http://hdl.handle.net/10077/2653.
Повний текст джерелаLe comunità planctoniche rivestono un ruolo fondamentale nel funzionamento degli ecosistemi marini, contribuendo in maniera sostanziale ai cicli biogeochimici. Il fitoplancton, in particolare, funge da primo anello della rete trofica in quanto, attraverso la fotosintesi permette l’organicazione del carbonio rendendolo disponibile all’interno delle reti trofiche marine. Questo passaggio può avvenire sia attraverso la rete trofica classica sia attraverso il microbial loop. Lo studio quindi della comunità microfitoplanctonica, sia in termini di abbondanze sia di composizione specifica, è un passaggio obbligato per poter capire ed interpretare l’intero sistema pelagico, per conoscerne le potenzialità dal punto di vista sia ecologico sia produttivo, aspetto maggiormente legato alle attività umane. Nella prima parte di questo studio è stata analizzata una serie storica (da marzo 1986 a settembre 2005) inerente la composizione quali-quantitativa della comunità microfitoplanctonica. I dati sono stati ottenuti dall’osservazione di campioni raccolti in una stazione costiera del golfo di Trieste. La serie è stata utilizzata inizialmente allo scopo di evidenziare gli andamenti stagionali della componente microfitoplanctonica ed inoltre per valutare eventuali alterazioni/ modificazioni della struttura del fitoplancton avvenute nel corso del periodo analizzato. Sono state osservate successioni stagionali influenzate principalmente dagli apporti fluviali che in golfo dipendono essenzialmente dal fiume Isonzo, che garantisce nutrienti nei periodi di fine inverno e primavera dando la possibilità alle Bacillariophyceae (o diatomee) di sviluppare le classiche fioriture, e nel periodo autunnale, quando nuovamente le Bacillariophyceae aumentano in abbondanza. Inoltre l’analisi delle serie temporale proposta in questo lavoro (con l’applicazione dell’indice IndVal) evidenzia importanti modificazioni che hanno interessato la componente microfitoplactonica nel corso dei venti anni di osservazioni. Sono stati principalmente segnalati due momenti importanti nel corso del periodo: • a metà degli anni ’90, con la riduzione delle abbondanze dei piccoli flagellati e delle grandi Dinophyceae, lo spostamento delle tipiche fioriture di Skeletonema costatum (Bacillariophyceae) da inizio primavera ad inverno, • dal 2002 la riduzione delle abbondanze delle Bacillariophyceae con la ricomparsa dei piccoli fitoflagellati e la dominanza di specie quali Prorocentrum minimum (Dinophyceae) e Cyclotella sp.p (Bacillariophyceae). L’ipotesi principale è che nel corso degli anni ci sia stato una modificazione nello stato trofico del sistema legato ad una provata riduzione degli apporti d’acqua dolce. In particolare il fosforo è uno dei nutrienti che maggiormente limitano in questa area la crescita microalgale favorendo la presenza di specie che tollerano meglio la carenza di questo nutriente. Questo studio conferma l’utilità di programmi di monitoraggio a lungo termine che rendono possibile l’osservazione delle modificazioni del sistema nel tempo. Inoltre è stato valutato se un set di dati come quello a nostra disposizione potesse tornare utile al fine di valutare l’eventuale segnalazione di nuovi taxa per il golfo di Trieste. Infatti l’alterazione dei sistemi marino costieri può anche influenzare la distribuzione delle specie e conseguentemente favorire le “invasioni biologiche”, fattore oramai considerato in continua crescita, che contribuisce al global change portando a locali alterazioni dei processi ecologici e ad una omogeneizzazione delle comunità. Dai risultati ottenuti appare evidente che il set di dati non è adatto a trarre conclusioni in tali senso, seppure nel corso dei venti anni siano stati rilevati dei taxa di nuova segnalazione che sono diventati parte integrante della comunità microfitoplanctonica del golfo. A tale scopo risulta necessario mettere a punto strategie di campionamento mirate ad una corretta e completa stima della biodiversità, ampliando l’area interessata e con metodologie di analisi che diano la possibilità di stilare liste floristiche complete. Nella seconda parte del lavoro è stata focalizzata l’attenzione sulle zone portuali in quanto prime zone interessate da un eventuale introduzione nonché punto di partenza per molti organismi. Infatti la maggior parte delle introduzioni di specie sono veicolate dalle navi attraverso le acque di zavorra delle navi. Le acque di zavorra sono utilizzate da tutte le navi al fine di mantenere la stabilità durante la navigazioni quando queste viaggiano prive di carico ed ogni giorno enormi quantità di acqua e di sedimenti provenienti da porti e mari di tutto il mondo vengono trasportate attraverso gli oceani come acque di zavorra dalle navi mercantili e scaricate in altre aree geografiche. Quest’acqua viene prelevata dalle aree portuali costiere e trasportata nel porto successivo, ove può venir rilasciata o scambiata. A questo scopo sono stati effettuati sia campionamenti di acque di zavorra (in due importanti porti italiani quali Trieste e Napoli) sia campionamenti nell’area portuale stessa (nel porto di Trieste). Nel caso delle acque di zavorra è stato valutata la comunità microalgale presente sia nell’acqua di zavorra stessa sia nei sedimenti che si accumulano sul fondo delle cisterne (con isolamento di microalghe ancora vitali) mentre nella zona portuale è stata fatta una stima qualitativa della comunità microfitoplanctonica e una stima quali-quantitativa delle forme di resistenza (tipiche degli organismi microfitoplanctonici, in particolare delle Dinophyceae) presenti nei sedimenti del porto (con esperimenti di germinazione di cisti di Dinophyceae). I risultati hanno confermato la potenziale pericolosità di trasporto di organismi microfitoplanctonici attraverso le zavorre e anche la presenza di numerose forme di resistenza nei sedimenti portuali. Sicuramente questo studio sottolinea la necessità di predisporre piani di monitoraggio estesi alle zone portuali (sia delle zavorre delle navi sia del porto stesso) al fine di evidenziare la presenza di nuovi taxa. Questo non potrà certamente permettere di evitare l’introduzione di organismi alloctoni, ma avrà la funzione di primo campanello di allerta.
XIX Ciclo
1976
Holenstein, Kathrin. "Permeability of European Protected Areas to Non-Native Species." Thesis, Université de Montpellier (2022-….), 2022. http://www.theses.fr/2022UMONG015.
Повний текст джерелаProtected areas are among the key elements of global biodiversity conservation strategies and aim to conserve native species, habitats and ecosystems. Globalisation has led to increased introductions of species outside their natural range. In their new environment, some of these non-native species have the potential to affect ecosystems and compete with or threaten native species. The environment in close proximity to protected areas is likely to be the stepping stone for non-native species to become established in protected areas. However, little is known about the role that protected area surroundings play in the permeability of protected areas to non-native species. In this thesis, I focused on protected areas and their surrounding belts to address the issue of permeability to non-native species. Examining protected areas in Norway, I showed that non-native species surrounding protected areas have a qualitative impact on the community of non-native species in protected areas. Moreover, the proportion of invasive species was higher in protected areas (40 %) compared to their belts (12 %). The number of non-native species in the surrounding areas also significantly determined the number of non-native species in protected areas. I have also highlighted the dynamics of colonization from the belts to the protected areas by showing that non-native species were detected in the protected areas on average several years after they were recorded in the belts. In addition, I showed in four European countries that the type of land use and land cover in the proximity and within protected areas plays a central role in the establishment of non-native species in protected areas. Anthropogenic land use and land cover around protected areas promoted the establishment of non-native species inside protected areas, regardless of the land use and land cover present in them. Finally, I investigated the colonization dynamics of Acacia dealbata, an invasive t ree species, in and around protected areas in central Portugal over the last twenty years. I showed that disturbances by fires and the loss of tree cover had a significant positive effect on the presence of the species. This thesis highlights the importance of the protected area surroundings for the colonization of non-native species. This is particularly relevant for future management strategies for non-native species in protected areas
Ulman, Aylin. "Recreational boating as a major vector of spread of nonindigenous species around the Mediterranean." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS222.
Повний текст джерелаMany stressors, such as climate change, overfishing, pollution and biological invasions, are currently devastating the marine domain. The role of recreational boating in facilitating marine bioinvasions urgently necessitated a proper evaluation, especially in the Mediterranean Sea which hosts 2/3 of global charter boat traffic and is also the global hotspot for alien species. This study addresses this shortfall by completing the firstever Mediterranean basin-wide study investigating the influence of recreational boats in the transfer of NIS from biofouling both in marinas and from boat-hulls. First, a thorough investigation of NIS was conducted in 34 marinas across the Mediterranean (spanning from Spain to Turkey), targeting benthic macroinvertebrates. All marinas were found to host NIS, ranging from 2 to 27 per marina. This first output of this research provides a massive update of new NIS records and updated species distributions for the Mediterranean, and presents three new species in the Mediterranean basin, 51 new NIS country records and 20 new subregional records, which can now be fed into models and databases to gain a better comprehension of the composition and scale of NIS colonizing marina habitats. it was realized that almost 80% of sampled fouled vessels were found to host at least 1 NIS, while 11 was the maximum NIS found on one boat-hull. It was also found that recreational vessels visiting new marinas sometimes carry NIS not yet present neither in that marina nor in the country in which they are visiting, thus providing ample evidence of recreational boating supplying new NIS to marinas. The results of this large-scale Mediterranean marina assessment were combined with other existing data on NIS in Italian marinas for a total sample size of 50 marinas, which were then used to feed both univariate and multivariate statistical tests aimed at identifying which abiotic factors mainly contribute to total species richness of NIS in marinas and also which factors contribute to similar NIS assemblages between marinas. The results revealed that a higher species richness of NIS in Mediterranean marinas was influenced by the following factors: water temperatures above 25°C, a higher number of berths, absence of floating pontoons, proximity to the Suez Canal and proximity to commercial harbours. Whereas the similarities between NIS assemblages amongst marinas were more influenced by environmental factors such as temperature, biogeographical region, climate type, primary productivity and again proximity to the Suez Canal. The significance of the Suez Canal as a prominent factor in both analyses coincides with the general trend of higher total NIS found in the Eastern Mediterranean strongly influencing NIS distributions. The results presented within this thesis, adding to those marinas surveyed from around the world, form a robust case that recreational boating provides an extremely important pathway in facilitating primary NIS introduction events and their associated secondary spread to other coastal areas as ‘stepping stone’ habitats
Serebryakova, Alexandra. "Acclimation and adaptation of invasive seaweeds - a case study with the brown alga Sargassum muticum." Doctoral thesis, Paris 6, 2017. http://hdl.handle.net/10400.1/10824.
Повний текст джерелаAs algas não indígenas afetam comunidades naturais em todo o mundo, afetando a biodiversidade, o funcionamento dos ecossistemas e os seus serviços, com consequências económicas e sociais significativas. Entre os principais impactos estão deslocamento de espécies nativas e espécies ameaçadas e efeitos sobre processos ecológicos e evolutivos nas comunidades invadidas. A compreensão dos mecanismos de aclimatação e adaptação após a introdução representa um grande desafio nas algas marinhas. Nesta tese investigamos alguns processos de aclimatação, com ênfase no papel dos microorganismos associados e examinamos os seus efeitos usando Sargassum muticum como espécie modelo. Esta alga marinha nativa da Ásia é uma importante invasora, com uma distribuição atual do México ao Alasca na América e de Marrocos à Noruega na Europa. Primeiro analisamos as vantagens e características competitivas que podem contribuir para sua invasibilidade. Além disso, fornecemos uma visão geral dos mecanismos de aclimatação e adaptação subjacentes e destacamos seu papel nas invasões de algas marinhas. Em seguida, examinamos os efeitos da acidificação dos oceanos no microbioma de S. muticum e revelamos que não tem efeitos significativos sobre a comunidade microbiana das algas marinhas apesar de causar algumas mudanças na comunidade. No estudo das mudanças sazonais na microbiota associada às algas marinhas revelamos diferenças significativas entre as estações e os locais geográficos. Finalmente, realizamos modelação de nicho ecológico de forma inovadora para a fenologia, para projetar a distribuição de S. muticum em dois cenários futuros de mudança climática. De acordo com nossas projeções, até 2100, a distribuição de S. muticum deverá expandir-se para norte ao longo das suas distribuições européia, norte-americana e asiática, com retração parcial das áreas atualmente ocupadas.
Serebryakova, Alexandra. "Acclimation and adaptation of invasive seaweeds - a case study with the brown alga sargassum muticum." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066475.
Повний текст джерелаNon-indigenous seaweeds impact natural communities worldwide, affecting biodiversity, ecosystem functioning, and ecosystem services, resulting in significant economic and social consequences. Among major impacts are the displacement of native species, a threat to endangered species, and effects on ecological and evolutionary processes within the invaded communities. While critical to predict the fate of introduced species, understanding the mechanisms of acclimation and adaptation following introduction represents a great challenge in seaweeds. In this thesis, we investigated some acclimation processes, with an emphasis on the role of associated microbiota, and examined their effects with Sargassum muticum as a model species. This brown seaweed native to Asia, is an emblematic invader among seaweeds, with a distribution now ranging from Mexico to Alaska in America and from Morocco to Norway in Europe. We first reviewed the competitive advantages and traits that may contribute to its invasiveness. We then showed that acidification has no significant effects on associated bacteria, although seasonal changes in the microbiome have been observed. Finally, we applied ecological niche modelling, but innovatively accounting for phenology, to project the distribution of S. muticum under two future climate change scenarios. According to our projections, by 2100 the distribution of S. muticum is expected to shift northwards along its European, North American and Asian distributions with partial retreat from the currently occupied areas
Su, Guohuan. "Cartographie de la biodiversité mondiale, profilage des espèces envahissantes et élaboration d'un indice global du changement de la biodiversité basé sur les facettes taxonomiques, fonctionnelles et phylogénétiques de la biodiversité des poissons d'eau douce." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30292.
Повний текст джерелаBiodiversity is a multifaceted concept that includes three main components, namely taxonomic, phylogenetic and functional diversity. Biogeographical studies have paid more attention to the first two facets while the patterns and drivers of functional diversity and their changes because of global change remains largely unknown at the global scale. These knowledge gaps are especially large for freshwater fishes, because they not only account for a quarter of vertebrates and support the functioning and stability of ecosystems, but are also one the most threatened vertebrates groups in the world. Thus this thesis aims to improve the understanding of the functional diversity of global freshwater fishes and bridge the gap between taxonomic, functional and phylogenetic facets to evaluate the impacts of human activities on the multifaceted biodiversity of global fishes. Towards this aim, we first built a trait database describing the morphology of 10 600 species occurring in over 2 400 river basins all over the six terrestrial realms. First, we assessed the distributions of the morphological traits within the fauna of each realm. We revealed that fish morphological traits are different between realms and that morphologically extreme species are distributed in all realms. Second, using a multi-traits approach at the basin scale we found that the historical functional diversities have been shaped by habitat, energy and history-related variables. Third, we demonstrated that morphology differs between species that have never been introduced species and those that were introduced and those that were even established. Last, using a novel cumulative index combining changes in six facets of biodiversity we found that human activities have markedly affected fish biodiversity in more than half of the world river (52.8%, 1 297 rivers). Those biodiversity changes were primarily due to alterations of water connectivity and introductions of non-native species. This work underlined the potential of morphological features in the study of global freshwater fish functional diversity, and the combination of functional phylogenetic and taxonomic features in a novel multifaceted biodiversity change index will constitute a useful tool for biological conservation
Книги з теми "Specie non indigene"
The attack of the killer rhododendrons: My obsessive quest to seek out alien species. Toronto, Ont: HarperCollins, 2012.
Знайти повний текст джерелаNational Research Council (U.S.). Committee on Ships' Ballast Operations., ed. Stemming the tide: Controlling introductions of nonindigenous species by ships' ballast water. Washington, D.C: National Academy Press, 1996.
Знайти повний текст джерелаKrcmar, Emina. An examination of the threats and risks to forests arising from invasive alien species. Victoria, B.C: Pacific Forestry Centre, 2008.
Знайти повний текст джерела(US), National Research Council. Stemming the Tide: Controlling Introductions of Nonindigenous Species by Ships' Ballast Water. National Academies Press, 1996.
Знайти повний текст джерелаRapai, William. Lake Invaders: Invasive Species and the Battle for the Future of the Great Lakes. Wayne State University Press, 2016.
Знайти повний текст джерела(US), National Research Council. Predicting Invasions of Nonindigenous Plants and Plant Pests. National Academies Press, 2002.
Знайти повний текст джерелаЧастини книг з теми "Specie non indigene"
Peterson, Joseph W. "Compel Them to Come." In Sacred Rivals, 175–200. Oxford University PressNew York, 2023. http://dx.doi.org/10.1093/oso/9780197605271.003.0008.
Повний текст джерела