The caddisfly fauna (Insecta, Trichoptera) of the rivers of the Black Sea basin in Kosovo with distributional data for some rare species by Halil Ibrahimi, Mladen Kučinić, Agim Gashi, Linda Grapci Kotori

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Hammarbya Paludosa (L.) O. Kuntze (Orchidaceae): a new location of a rare species in the Moscow region by P Yu Zhmylev, E A Karpukhina, E V Veryaskina, A S Terebova

“…The article concerns ecology and biology of Hammarbia paludosa and results of studying the population in the new location (Dubna) of this rare species in the Moscow region.…”
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IUCN Red List evaluation of the Orchidaceae endemic to Apulia (Italy) and considerations on the application of the IUCN protocol to rare species by Robert Philipp Wagensommer, Pietro Medagli, Alessio Turco, Enrico V. Perrino

“…The authors discuss these results, highlighting that especially when assessing rare species with a small distribution range against the IUCN protocol, it should be taken into account that the assessment could be influenced (also noteworthy) by the effective knowledge on the distribution, on the population size and on the threats affecting the populations. …”
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Tetrasporidium javanicum Möbius (Chlorophyta), a rare species recorded from Arpa River in Bilaspur, Chhattisgarh, India by Rakesh Kumar Dwivedi

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Polyvariance of ontomorphogenesis of the Crimean endemic rare species Anthemis sterilis Steven (Asteraceae Bercht. et J. Presl) by M.S. Kalista, O.F. Scherbakova, V.V. Novosad

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Studying genetic population structure to shed light on the demographic explosion of the rare species Barbitistes vicetinus (Orthoptera, Tettigoniidae). by Isabel Martinez-Sañudo, Corrado Perin, Giacomo Cavaletto, Giacomo Ortis, Paolo Fontana, Luca Mazzon

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New data on Pyraloidea and Noctuoidea (Lepidoptera) rare species distribution basing on materials from Rostov Region (Russia) by A.N. Poltavsky, S.Yu. Sinev, A.Yu. Matov

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The Ecological Potential of Wild Orchids for in situ and ex situ Conservation of Rare Species in Enrekang, South Sulawesi, Indonesia by Rinaldi Sjahril, Amran Achmad, Tjut Sugandawaty Djohan, Sri Suhadiyah

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Phylogenetic position of <em>Echeveria heterosepala</em> (Crassulaceae): a rare species with diagnostic characters of <em>Pachyphytum</em> by Carlos Vázquez-Cotero, Victoria Sosa, Pablo Carrillo-Reyes

“…Hypothesis: The objective of this paper is to identify the phylogenetic position of a rare species with restricted distribution in Echeveria, E. heterosepala that possesses the diagnostic characters of Pachyphytum to better understand the generic limits between these two genera. …”
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Rediscovered after 77 years: Odontodiaptomus thomseni - a rare species of calanoid (Crustacea: Copepoda) from South America by Gilmar Perbiche-Neves, Geoff A. Boxshall, Carlos E. F. da Rocha, Marcos G. Nogueira

“…The freshwater copepod Odontodiaptomus thomseni (Brehm, 1933) (Calanoida: Diaptomidae) is a rare species that has been reported only once - in its original description (BREHM 1933). …”
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To the knowledge of rare species of Acrididae from Protected Areas in North-Western Russia: Chorthippus brunneus brevis (Orthoptera, Acrididae) by Aleksander A. Benediktov

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Taxonomy and phylogeny of Pseudovorticella ciliates (Ciliophora, Peritrichia): Two new and one rare species from the coastal waters of China by Yong Zhang, Ying Yu, Zhishuai Qu, Zhishuai Qu, Mengmeng Jiang, Zhuo Shen, Jiqiu Li, Jiqiu Li, Xiaofeng Lin, Xiaofeng Lin

“…Pseudovorticella dalianensis sp. n. can be defined mainly by an obovoid-shaped zooid, one ventral contractile vacuole, and a three-rowed infundibular polykinety 3 with the middle row being the longest. The rare species, Pseudovorticella verrucosa (Dons, 1915) Sun et al., 2009, was redescribed. …”
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Uniting Community Ecology and Evolutionary Rescue Theory: Community-Wide Rescue Leads to a Rapid Loss of Rare Species by Timo J. B. van Eldijk, Karen Bisschop, Rampal S. Etienne

“…We show that under Community-Wide Rescue a rapid loss of rare species occurs. This loss occurs due to competition and a limited supply of beneficial mutations. …”
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Taxonomic, sozological and biological characteristics of rare species of herbaceous plants from collection of Dendrological Park Olexandria of the NAS of Ukraine by L.V. Kalashnikova, S.I. Galkin

“…Objective – to conduct a system analysis, establish a sozological status and determine the ability to reproduce natural and introduced rare species of herbaceous plants from the Olexandria arboretum collection. …”
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DNA barcoding unveiling rare species: the case of Pruvotfolia pselliotes (Labbé, 1923) (Mollusca: Gastropoda: Nudibranchia) in the Mediterranean Sea by G. Furfaro, G. Chimienti, P. Mariottini

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SUMMARY OF INTRODUCTION AND CONSERVATION <i> EX SITU </i> OF THE RARE SPECIES OF BASHKORTOSTAN <i> PAEONIA HYBRIDA </i> PALL. by A. A. Reut, L. N. Mironova

“…Paeonia hybrida Pall., a rare species of the flora of Bashkortostan, was experimentally introduced into cultivation at the Botanical Garden-Institute, Ufa Scientific Center, Russian Academy of Sciences. …”
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Genetic Patterns of Myrceugenia correifolia, a Rare Species of Fog-Dependent Forests of Mediterranean Chile: Is It a Climatic Relict? by Fernanda Pérez, Fernanda Pérez, Luis F. Hinojosa, Luis F. Hinojosa, Gioconda Peralta, Paz Montenegro, Carla Irarrázabal, Michel Cossio

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First record of Bothrioneurum vejdovskyanum Štolc, 1886 (Oligochaeta, Tubificidae) in Serbia by Vasiljević Božica, Marković Vanja, Paunović M., Simić V., Atanacković Ana, Šporka F., Tomović Jelena

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GIS design for in situ conservation of rare and endangered species by R. Hauptvogel, R. Kuna, P. Štrba, P. Hauptvogel

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Species Composition and Diversity of Plants along Human-Induced Disturbances in Tropical Moist Sal Forests of Eastern Ghats, India by Madhab Chandra Behera, Uttam Kumar Sahoo, Tanmay Lalitendu Mohanty, Piotr Prus, Laura Smuleac, Raul Pascalau

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