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Auteur Tiiu Kull |
Documents disponibles écrits par cet auteur (4)
Affiner la rechercheConservePlants: An integrated approach to conservation of threatened plants for the 21st Century / Živa Fišer in Research Ideas and Outcomes, 7 (2021)
Titre : ConservePlants: An integrated approach to conservation of threatened plants for the 21st Century Type de document : Imprimé Auteurs : Živa Fišer ; Giovanna Aronne ; Tsipe Aavik ; Meleksen Akin ; Paraskevi Alizoti ; Filippos Aravanopoulos ; Gianluigi Bacchetta ; Manica Balant ; Dalibor Ballian ; Oz Barazani ; Andrea Francesca Bellia ; Nadine Bernhardt ; Magda Bou Dagher Kharrat ; Adrian Bugeja Douglas ; Michael Burkart ; Dušica Ćalić ; André Carapeto ; Tor Carlsen ; Silvia Castro ; Guy Colling ; Joana Cursach ; Sara Cvetanoska ; Cvetanka Cvetkoska ; Renata Ćušterevska ; Laura Daco ; Kalina Danova ; Aida Dervishi ; Gordana Djukanović ; Snežana Dragićević ; Andreas Ensslin ; Marianne Evju ; Guiseppe Fenu ; Ana Francisco ; Pedro Pablo Gallego ; Marta Galloni ; Anatolie Ganea ; Birgit Gemeinholzer ; Peter Glasnović ; Sandrine Godefroid ; Mette Goul Thomsen ; Melinda Halassy ; Aveliina Helm ; Marko Hyvärinen ; Jasmin Joshi ; Amra Kazić ; Michael Kiehn ; Marcin Klisz ; Anneleen Kool ; Marcin Koprowski ; Anna Kövendi-Jakó ; Karel Kříž ; Matthias Kropf ; Tiiu Kull ; Sandro Lanfranco ; Predrag Lazarević ; Maja Lazarević ; Merav Lebel Vine ; Ligita Liepina ; João Loureiro ; Diana Lukminė ; Nathalie Machon ; Conor Meade ; Detlev Metzing ; Đorđije Milanović ; Luis Navarro ; Saša Orlović ; Bart Panis ; Hana Pankova ; Taras Parpan ; Ondřej Pašek ; Dhimiter Peci ; Theodōra Petanidou ; Kristina Plenk ; Radosław Puchałka ; Ivan Radosavljević ; Hassan Rankou ; Valerijus Rašomavičius ; Gabriela Romanciuc ; Anna Ruotsalainen ; Nina Šajna ; Terezia Salaj ; Carolina Sánchez-Romero ; Murat Sarginci ; Deborah Schäfer ; Ole Seberg ; Suzanne Sharrock ; Jozef Šibík ; Mária Šibíková ; Olav Skarpaas ; Milena Stanković Neđić ; Srdjan Stojnic ; Boštjan Surina ; Katalin Szitár ; Aco Teofilovski ; Rannveig Thoroddsen ; Ivaylo Tsvetkov ; Domas Uogintas ; Koenraad Van Meerbeek ; Nils (van) Rooijen ; Loukia Vassiliou ; Rita Verbylaitė ; Philippine Vergeer ; Petr Vit ; Margareta Walczak ; Alex Widmer ; Justyna Wiland- Szymańska ; Goran Zdunić ; Elke Zippel Année de publication : 2021 Article en page(s) : e62810 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Conservation et gestion des espèces Résumé : Even though plants represent an essential part of our lives offering exploitational, supporting and cultural services, we know very little about the biology of the rarest and most threatened plant species, and even less about their conservation status. Rapid changes in the environment and climate, today more pronounced than ever, affect their fitness and distribution causing rapid species declines, sometimes even before they had been discovered. Despite the high goals set by conservationists to protect native plants from further degradation and extinction, the initiatives for the conservation of threatened species in Europe are scattered and have not yielded the desired results. The main aim of this Action is to improve plant conservation in Europe through the establishment of a network of scientists and other stakeholders who deal with different aspects of plant conservation, from plant taxonomy, ecology, conservation genetics, conservation physiology and reproductive biology to protected area's managers, not forgetting social scientists, who are crucial when dealing with the general public. Lien pérenne : DOI : 10.3897/rio.7.e62810 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=149210
in Research Ideas and Outcomes > 7 (2021) . - e62810Fišer, Živa, Aronne, Giovanna, Aavik, Tsipe, Akin, Meleksen, Alizoti, Paraskevi, Aravanopoulos, Filippos, Bacchetta, Gianluigi, Balant, Manica, Ballian, Dalibor, Barazani, Oz, Bellia, Andrea Francesca, Bernhardt, Nadine, Bou Dagher Kharrat, Magda, Bugeja Douglas, Adrian, Burkart, Michael, Ćalić, Dušica, Carapeto, André, Carlsen, Tor, Castro, Silvia, Colling, Guy, Cursach, Joana, Cvetanoska, Sara, Cvetkoska, Cvetanka, Ćušterevska, Renata, Daco, Laura, Danova, Kalina, Dervishi, Aida, Djukanović, Gordana, Dragićević, Snežana, Ensslin, Andreas, Evju, Marianne, Fenu, Guiseppe, Francisco, Ana, Gallego, Pedro Pablo, Galloni, Marta, Ganea, Anatolie, Gemeinholzer, Birgit, Glasnović, Peter, Godefroid, Sandrine, Thomsen, Mette Goul, Halassy, Melinda, Helm, Aveliina, Hyvärinen, Marko, Joshi, Jasmin, Kazić, Amra, Kiehn, Michael, Klisz, Marcin, Kool, Anneleen, Koprowski, Marcin, Kövendi-Jakó, Anna, Kříž, Karel, Kropf, Matthias, Kull, Tiiu, Lanfranco, Sandro, Lazarević, Predrag, Lazarević, Maja, Lebel Vine, Merav, Liepina, Ligita, Loureiro, João, Lukminė, Diana, Machon, Nathalie, Meade, Conor, Metzing, Detlev, Milanović, Đorđije, Navarro, Luis, Orlović, Saša, Panis, Bart, Pankova, Hana, Parpan, Taras, Pašek, Ondřej, Peci, Dhimiter, Petanidou, Theodōra, Plenk, Kristina, Puchałka, Radosław, Radosavljević, Ivan, Rankou, Hassan, Rašomavičius, Valerijus, Romanciuc, Gabriela, Ruotsalainen, Anna, Šajna, Nina, Salaj, Terezia, Sánchez-Romero, Carolina, Sarginci, Murat, Schäfer, Deborah, Seberg, Ole, Sharrock, Suzanne, Šibík, Jozef, Šibíková, Mária, Skarpaas, Olav, Stanković Neđić, Milena, Stojnic, Srdjan, Surina, Boštjan, Szitár, Katalin, Teofilovski, Aco, Thoroddsen, Rannveig, Tsvetkov, Ivaylo, Uogintas, Domas, Van Meerbeek, Koenraad, Rooijen, Nils (van), Vassiliou, Loukia, Verbylaitė, Rita, Vergeer, Philippine, Vit, Petr, Walczak, Margareta, Widmer, Alex, Wiland- Szymańska, Justyna, Zdunić, Goran, Zippel, Elke 2021 ConservePlants: An integrated approach to conservation of threatened plants for the 21st Century. Research Ideas and Outcomes, 7: e62810.Documents numériques
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Article (2021)URL
Titre : Cypripedium calceolus L. Type de document : Imprimé Auteurs : Tiiu Kull Année de publication : 1999 Article en page(s) : 913-924 Langues : Anglais (eng) Mots-clés : Cypripedium calceolus L. Lien pérenne : DOI : 10.1046/j.1365-2745.1999.00407.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=137377
in Journal of ecology > 87 (5) (1999) . - 913-924Kull, Tiiu 1999 Cypripedium calceolus L. Journal of ecology, 87(5): 913-924.Documents numériques
Article (1999)URL
Titre : From UAV to planetscope: upscaling fractional cover of an invasive species Rosa rugosa Type de document : Imprimé Auteurs : Thaísa F. Bergamo ; Raul Sampaio de Lima ; Tiiu Kull ; Raymond D. Ward ; Kalev Sepp ; Miguel Villoslada Année de publication : 2023 Article en page(s) : 117693 Catégories : [CBNPMP-Thématique] Télédétection Mots-clés : Rosa rugosa Résumé : Invasive plant species pose a direct threat to biodiversity and ecosystem services. Among these, Rosa rugosa has had a severe impact on Baltic coastal ecosystems in recent decades. Accurate mapping and monitoring tools are essential to quantify the location and spatial extent of invasive plant species to support eradication programs. In this paper we combined RGB images obtained using an Unoccupied Aerial Vehicle, with multispectral PlanetScope images to map the extent of R. rugosa at seven locations along the Estonian coastline. We used RGB-based vegetation indices and 3D canopy metrics in combination with a random forest algorithm to map R. rugosa thickets, obtaining high mapping accuracies (Sensitivity = 0.92, specificity = 0.96). We then used the R. rugosa presence/absence maps as a training dataset to predict the fractional cover based on multispectral vegetation indices derived from the PlanetScope constellation and an Extreme Gradient Boosting algorithm (XGBoost). The XGBoost algorithm yielded high fractional cover prediction accuracies (RMSE = 0.11, R2 = 0.70). An in-depth accuracy assessment based on site-specific validations revealed notable differences in accuracy between study sites (highest R2 = 0.74, lowest R2 = 0.03). We attribute these differences to the various stages of R. rugosa invasion and the density of thickets. In conclusion, the combination of RGB UAV images and multispectral PlanetScope images is a cost-effective method to map R. rugosa in highly heterogeneous coastal ecosystems. We propose this approach as a valuable tool to extend the highly local geographical scope of UAV assessments into wider areas and regional evaluations. Lien pérenne : DOI : 10.1016/j.jenvman.2023.117693 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=151576
in Journal of environmental management > 336 (2023) . - 117693Bergamo, Thaísa F., Lima, Raul Sampaio de, Kull, Tiiu, Ward, Raymond D., Sepp, Kalev, Villoslada, Miguel 2023 From UAV to planetscope: upscaling fractional cover of an invasive species Rosa rugosa. Journal of environmental management, 336: 117693.Documents numériques
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Article (2023)Adobe Acrobat PDF
Titre : Fruit-set and recruitment in populations of Cypripedium calceolus L. in Estonia Type de document : Imprimé Auteurs : Tiiu Kull Année de publication : 1998 Article en page(s) : 27-38 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Biologie de la reproduction Mots-clés : Cypripedium calceolus L. Résumé : The overall mean percentage of fruiting for over 3500 flowers observed in eight Estonian populations of a self-compatible clonal orchid Cypripedium calceolus over 11 years was 10.5%. The larger clones set relatively fewer fruits, otherwise the general pattern of fruiting was close to random, despite several significant local deviations from random pollination. There is no cost associated with the fruit-set at the clonal level. The fruit-set which appears pollinator limited was not correlated with the frequency of seedlings in a population. Data presented provide information on the relationship between fruit and seedling production in orchids. The sites suitable for seedling establishment are characterized as having relatively more extensive moss cover, less vascular plant cover, more moisture and better light conditions. Recruitment is concluded to be microsite limited, and the fruit-set to be without significant influence on the fitness of populations. Lien pérenne : DOI : 10.1111/j.1095-8339.1998.tb02513.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=137376
in Botanical journal of the Linnean Society > 126 (1-2) (1998) . - 27-38Kull, Tiiu 1998 Fruit-set and recruitment in populations of Cypripedium calceolus L. in Estonia. Botanical journal of the Linnean Society, 126(1-2): 27-38.Documents numériques
Article (1998)URL
