Showing 1,741 - 1,760 results of 1,838 for search '"rare species"', query time: 0.23s Refine Results
  1. 1741

    Use of Sentinel-2 Data to Improve Multivariate Tree Species Composition in a Forest Resource Inventory by Jay R. Malcolm, Braiden Brousseau, Trevor Jones, Sean C. Thomas

    Published 2021-10-01
    “…Of the 21 tree species evaluated, 8 relatively rare species had poor models in all cases. Our multivariate approach allowed us to use more FRI stands in model creation than if we had been restricted to stands dominated by single species and allowed us to map species abundances at higher resolution. …”
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  2. 1742

    Pondberry (Lindera   melissifolia, Lauraceae) seed and seedling dispersers and predators by Andreza M. Martins, Fernanda M. Abilio, Plinio Gonçalves de Oliveira, Raquel Partelli Feltrin, Fernanda Scheffer Alves de Lima, Priscilla de O. Antonelli, Daniela Teixeira Vilela, Carl G. Smith III, Collin Tidwell, Paul Hamel, Margaret Devall, Kristina Connor, Theodor Leininger, Nathan Schiff, A. Dan Wilson

    Published 2015-07-01
    “…The novelty and quality of the temporal data collected via video monitoring indicate the importance of this method in collecting data that are not otherwise available on endangered and rare species.…”
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  3. 1743

    Application of Environmental DNA Metabarcoding to Spatiotemporal Finfish Community Assessment in a Temperate Embayment by Yuan Liu, Yuan Liu, Gary H. Wikfors, Julie M. Rose, Richard S. McBride, Lisa M. Milke, Renee Mercaldo-Allen

    Published 2019-11-01
    “…If the objective is to detect rare species, nylon filters are recommended over polycarbonate filters because of higher capture rates of rare taxa. …”
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  4. 1744

    Micropropagation and ex situ conservation of three rare and endemic ornamental Dianthus taxa (Caryophyllaceae) by Virginia Sarropoulou, Eleni Maloupa

    Published 2022-04-01
    “…The aim of the study was the in vitro proliferation and rooting reactivity of three rare species of wild origin carnations (Dianthus genus) with limited distribution and conservation priority: the endangered and rare-restricted D. ingoldbyi (a local endemic from some regions of the Balkan peninsula, Turkey and North-East Greece), the Cretan local Greek endemic, range-restricted and endangered D. juniperinus subsp. bauhinorum, and the least concern or near threatened range-restricted Greek endemic of the Cyclades, Peloponnese and Ionian islands D. fruticosus subsp. occidentalis. …”
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  5. 1745

    Riqueza de borboletas (Lepidoptera) em um fragmento urbano de Cerrado em Mato Grosso do Sul, Brasil by Paulo Alexandre Bogiani, Rodrigo Aranda, Camila de Oliveira Freitas Machado

    Published 2012-06-01
    “…The present study aimed to evaluate the species richness of butterflies found in an urban remnant of savannah in Campo Grande, Midwest of Brazil, besides indicating the presence of rare species and indicative of preserved atmosphere. …”
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  6. 1746

    Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass by Alexandre Muller, Stanislas F. Dubois, Aurélien Boyé, Ronan Becheler, Gabin Droual, Mathieu Chevalier, Marine Pasquier, Loïg Roudaut, Jérôme Fournier‐Sowinski, Isabelle Auby, Flávia L. D. Nunes

    Published 2023-11-01
    “…Nevertheless, high turnover of a large number of rare species and traits was observed among meadows, resulting in meadows being characterized by their own distinct communities. …”
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  7. 1747

    Unraveling the plant diversity of the Amazonian canga through DNA barcoding by Santelmo Vasconcelos, Gisele L. Nunes, Mariana C. Dias, Jamily Lorena, Renato R. M. Oliveira, Talvâne G. L. Lima, Eder S. Pires, Rafael B. S. Valadares, Ronnie Alves, Maurício T. C. Watanabe, Daniela C. Zappi, Alice L. Hiura, Mayara Pastore, Liziane V. Vasconcelos, Nara F. O. Mota, Pedro L. Viana, André S. B. Gil, André O. Simões, Vera L. Imperatriz‐Fonseca, Raymond M. Harley, Ana M. Giulietti, Guilherme Oliveira

    Published 2021-10-01
    “…Abstract The canga of the Serra dos Carajás, in Eastern Amazon, is home to a unique open plant community, harboring several endemic and rare species. Although a complete flora survey has been recently published, scarce to no genetic information is available for most plant species of the ironstone outcrops of the Serra dos Carajás. …”
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  8. 1748

    LEMBAGA KONSERVASI SATWA DALAM PERSPEKTIF PERDAGANGAN SATWA ILEGAL by I Gusti Ayu Pradnya Swari Dewi

    Published 2016-07-01
    “…Forests as house a wide variety of wildlife is no longer able to protect the exixtence of wildlife due to habitat destruction. Various rare species endemic in Indonesia such as Sumateran tigers, one-horned rhino, the Javan hawk eagle, dragons, birds of paradise and other animals gravely threatened. …”
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  9. 1749

    Twigs of dove tree in high-latitude region tend to increase biomass accumulation in vegetative organs but decrease it in reproductive organs by Zhengchuan Liang, Tingting Liu, Xiaoyan Chen, Wenjuan Xu, Wenjuan Xu, Tingfa Dong, Tingfa Dong, Qinsong Liu, Qinsong Liu, Xiao Xu, Xiao Xu

    Published 2023-01-01
    “…Dove tree (Davidia involucrata Baill.), a monotypic rare species in China, was employed as a model species in our study, and the differences in functional traits, growth relationships and resource allocation among components of annual twig were investigated in three latitudinal regions (32°19′ N, 30°08′ and 27°55′) in the Sichuan, Southwest China. …”
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  10. 1750

    A data science challenge for converting airborne remote sensing data into ecological information by Sergio Marconi, Sarah J. Graves, Dihong Gong, Morteza Shahriari Nia, Marion Le Bras, Bonnie J. Dorr, Peter Fontana, Justin Gearhart, Craig Greenberg, Dave J. Harris, Sugumar Arvind Kumar, Agarwal Nishant, Joshi Prarabdh, Sundeep U. Rege, Stephanie Ann Bohlman, Ethan P. White, Daisy Zhe Wang

    Published 2019-02-01
    “…Several algorithms performed well for species classification, with the highest-performing algorithm correctly classifying 92% of individuals and performing well on both common and rare species. Comparisons of results across algorithms provided a number of insights for improving the overall accuracy in extracting ecological information from remote sensing. …”
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  11. 1751

    Recommended survey designs for occupancy modelling using motion-activated cameras: insights from empirical wildlife data by Graeme Shannon, Jesse S. Lewis, Brian D. Gerber

    Published 2014-08-01
    “…Our findings demonstrate that increasing total sampling effort generally decreases error associated with the occupancy estimate, but changing the number of sites or sampling duration can have very different results, depending on whether a species is spatially common or rare (occupancy = ψ) and easy or hard to detect when available (detection probability = p). For rare species with a low probability of detection (i.e., raccoon and spotted skunk) the required survey effort includes maximizing the number of sites and the number of survey days, often to a level that may be logistically unrealistic for many studies. …”
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  12. 1752

    Effect of agricultural land-use change on ant dominance hierarchy and food preferences in a temperate oak forest by Citlalli Castillo-Guevara, Mariana Cuautle, Carlos Lara, Brenda Juárez-Juárez

    Published 2019-01-01
    “…This range of strategies is well represented by the generalized Myrmicinae M. minimum, the cold-climate specialists Formica spp. and Temnothorax sp., and the rare species, as the cold climate specialist Lasius sp. …”
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  13. 1753

    Antioxidant Activity and Cytotoxicity against Cancer Cell Lines of the Extracts from Novel <i>Xylaria</i> Species Associated with Termite Nests and LC-MS Analysis by Niwana Wangsawat, Lutfun Nahar, Satyajit D. Sarker, Cherdchai Phosri, Andrew R. Evans, Anthony J. S. Whalley, Kiattawee Choowongkomon, Nuttika Suwannasai

    Published 2021-09-01
    “…<i>Xylaria</i> species associated with termite nests or soil have been considered rare species in nature and the few which have been reported upon have been found to act as a rich source of bioactive metabolites. …”
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  14. 1754

    Large-scale distribution models for optimal prediction of Eastern black rail habitat within tidal ecosystems by Bryan S. Stevens, Courtney J. Conway, Kirsten Luke, Aimee Weldon, Christine E. Hand, Amy Schwarzer, Fletcher Smith, Craig Watson, Bryan D. Watts

    Published 2022-10-01
    “…Our study provides an example of integrating detection-non-detection data and modern statistical methods to build predictive distribution models for an extremely rare species, while also providing rigorous predictions of breeding habitat quality for the eastern black rail within tidal wetlands. …”
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  15. 1755

    Real-Time Detection Algorithm for Kiwifruit Canker Based on a Lightweight and Efficient Generative Adversarial Network by Ying Xiang, Jia Yao, Yiyu Yang, Kaikai Yao, Cuiping Wu, Xiaobin Yue, Zhenghao Li, Miaomiao Ma, Jie Zhang, Guoshu Gong

    Published 2023-08-01
    “…Due to the seasonality and uncertainty of many crop pathogeneses, as well as some rare diseases or rare species, such data requirements are difficult to meet, leading to difficulties in achieving high levels of detection accuracy. …”
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  16. 1756

    Environmental drivers of taxonomic and phylogenetic diversity patterns of plant communities in semi-arid steppe rangelands of North Africa by Amale Macheroum, Leila Kadik, Souad Neffar, Haroun Chenchouni

    Published 2021-12-01
    “…Rarefaction and extrapolation curves applied for the whole steppe vegetation showed that the expected species richness was stable and no rare species could be found when increasing the sample size. …”
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  17. 1757

    The influence of light regime on the growth data and pigment composition of the plant Gentiana lutea cultured in vitro by L. R. Hrytsak, A. I. Herts, N. V. Nuzhyna, M. M. Cryk, V. V. Shevchenko, N. M. Drobyk

    Published 2018-08-01
    “…This work studies changes in the morphogenesis, growth data and pigment composition of the rare species of Gentiana lutea L. of three populations in the Ukrainian Carpathian (mountains Pozhyzhevska and Sheshul-Pavlyk, plateau Lemska) in vitro focusing particularly on the cultivation light regime. …”
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  18. 1758

    Comparação de métodos e processos de amostragem para estimar a área basal para grupos de espécies em uma floresta ecotonal da região norte matogrossense Comparison of sampling and... by Jaime Antonio Ubialli, Afonso Figueiredo Filho, Sebastião do Amaral Machado, Julio Eduardo Arce

    Published 2009-01-01
    “…For the species, individually, the errors varied from 28.7% (Vochysia sp.) to 250.59% (Courbaril hymenaeae), respectively, for the most and the least dense, thus showing the unfeasibility of applying traditional estimative processes to estimate specific parameters of species with low frequency by hectare (rare species).…”
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  19. 1759

    A comparative study on photosynthetic characteristics and flavonoid metabolism between Camellia petelotii (Merr.) Sealy and Camellia impressinervis Chang &Liang by Xin Huang, Xin Huang, Bo Qin, Lei Qin, Zhihong Peng, Shitou Xia, Yi Su, Kaidao Sun, Keqin Peng

    Published 2022-11-01
    “…The identification of transcriptional differences in the regulatory networks that respond to high-light stress and activate recovery of light damage in these two rare species adds to the resources available to conserve them and improve their value through molecular breeding. …”
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  20. 1760

    The true picture of environmental DNA, a case study in harvested fishponds by Petr Blabolil, Nathan P. Griffiths, Bernd Hänfling, Tomáš Jůza, Vladislav Draštík, Jelena Knežević-Jarić, Romulo dos Santos, Tomáš Mrkvička, Jiří Peterka

    Published 2022-09-01
    “…Most common species were detected using eDNA, but rare species were often missed out under these high stocking densities. …”
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