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2019

Biodiversity

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Articles 61 - 65 of 65

Full-Text Articles in Life Sciences

Epiphytic Diatoms As Bioindicators Of Trophic Status Of Lake Modrac(Bosnia And Herzegovina), Jasmina Kamberovi?, Vedran Stuhli, Zorana Luki?, Mirela Habibovic, Emina Me?Iki? Jan 2019

Epiphytic Diatoms As Bioindicators Of Trophic Status Of Lake Modrac(Bosnia And Herzegovina), Jasmina Kamberovi?, Vedran Stuhli, Zorana Luki?, Mirela Habibovic, Emina Me?Iki?

Turkish Journal of Botany

Biodiversity of diatoms and applicability of diatom indices in biomonitoring based on littoral epiphytic samples of Lake Modrac were investigated. Diatoms were taken mostly from Phragmites australis stems in 2017, during which physical and chemical parameters of the water were measured. A total of 85 diatom taxa were identified. Gomphonema (13 spp.), Navicula (11 spp.), and Nitzschia (8 spp.) were the most abundant genera. Obtained values of trophic indices (TID, TvD, and TDIL) pointed to meso- to eutrophic status for most localities, while values of the IBD, EPI, ?D, and IPS indices indicated good ecological status, except for localities at …

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A New Subspecies Of Saxifraga Artvinensis V.A.Matthews (Saxifragaceae) From Northeastern Anatolia, Sali̇h Terzi̇oğlu, Kami̇l Çoşkunçelebi̇, Murat Erdem Güzel Jan 2019

A New Subspecies Of Saxifraga Artvinensis V.A.Matthews (Saxifragaceae) From Northeastern Anatolia, Sali̇h Terzi̇oğlu, Kami̇l Çoşkunçelebi̇, Murat Erdem Güzel

Turkish Journal of Botany

Saxifraga artvinensis V.A.Matthews, which is endemic to Turkey, was discovered on Tiryal Mountain (A8 Artvin, northeastern Turkey). Approximately 175 km from its type locality, a new population of the species was discovered, in the Picea orientalis forest in the Altındere Valley National Park, in A7 Trabzon (northeastern Turkey). A comparison with the known population of S. artvinensis confirmed that this new population represented a new taxon and is described as S. artvinensis subsp. meryemii Terzioğlu & Coşkunç. An identification key and comparison with closely related taxa, based on both morphological and molecular properties, are also provided. The studied samples, belonging …

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Tricholoma (Fr.) Staude In The Aegean Region Of Turkey, İsmai̇l Şen, Hakan Alli Jan 2019

Tricholoma (Fr.) Staude In The Aegean Region Of Turkey, İsmai̇l Şen, Hakan Alli

Turkish Journal of Botany

The Tricholoma biodiversity of the Aegean region of Turkey has been determined and reported in this study. As a consequence of field and laboratory studies, 31 Tricholoma species have been identified, and five of them (T. filamentosum, T. frondosae, T. quercetorum, T. rufenum, and T. sudum) have been reported for the first time from Turkey. The identification key of the determined taxa is given with this study.

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A Rapid And Accurate Minion-Based Workflow For Tracking Species Biodiversity In The Field, Hendrik Freitag, Simone Maestri, Emanuela Cosentino, Marta Paterno, Jhoana M. Garces, Luca Marcolungo, Massimiliano Alfano, Iva Njunjić, Menno Schilthuizen, Ferry Slik, Michele Menegon, Marzia Rossato, Massimo Delledonne Jan 2019

A Rapid And Accurate Minion-Based Workflow For Tracking Species Biodiversity In The Field, Hendrik Freitag, Simone Maestri, Emanuela Cosentino, Marta Paterno, Jhoana M. Garces, Luca Marcolungo, Massimiliano Alfano, Iva Njunjić, Menno Schilthuizen, Ferry Slik, Michele Menegon, Marzia Rossato, Massimo Delledonne

Biology Faculty Publications

Genetic markers (DNA barcodes) are often used to support and confirm species identification. Barcode sequences can be generated in the field using portable systems based on the Oxford Nanopore Technologies (ONT) MinION sequencer. However, to achieve a broader application, current proof-of-principle workflows for on-site barcoding analysis must be standardized to ensure a reliable and robust performance under suboptimal field conditions without increasing costs. Here, we demonstrate the implementation of a new on-site workflow for DNA extraction, PCR-based barcoding, and the generation of consensus sequences. The portable laboratory features inexpensive instruments that can be carried as hand luggage and uses standard …

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Sea Star Wasting Disease In Pisaster Ochraceus On The Washington Coast And In Puget Sound, Caitlin Wilkes Jan 2019

Sea Star Wasting Disease In Pisaster Ochraceus On The Washington Coast And In Puget Sound, Caitlin Wilkes

All Master's Theses

Pisaster ochraceus is a common west coast sea star whose predation of Mytilus californianus (the California mussel) increases the biodiversity of its intertidal community. Sea star wasting disease is an illness that causes sea star tissues to become necrotic until the creature wastes away and dies. In 2013, a coast wide outbreak of sea star wasting disease caused a mass mortality event in P. ochraceus. The goals of this study were to try to identify some of the possible causes for the outbreak, as well as analyze the impact that sea star wasting disease prevalence has on biodiversity. In this …

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