Results 71 to 80 of about 474,061 (284)

Reversing extinction trends: new uses of (old) herbarium specimens to accelerate conservation action on threatened species.

New Phytologist, 2020
Although often not collected specifically for the purposes of conservation, herbarium specimens offer sufficient information to reconstruct parameters that are needed to designate a species as "at-risk" of extinction.
Giulia Albani Rocchetti, C. Armstrong, T. Abeli, S. Orsenigo, C. Jasper, S. Joly, Anne Bruneau, M. Zytaruk, J. Vamosi   +8 more
semanticscholar   +1 more source

Contributions to the flora and vegetation of Kagbeni (Mustan District, Central Nepal) [PDF]

, 2006
Kagbeni and its irrigated oasis are surrounded by subdesert dwarf scrubland. In the present study, a list of 78 species of vascular plants is presented for Kagbeni and its immediate surroundings, supplemented with data on the distribution of the species ...
Kasperek, Gerwin
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Plant and fungal collections: Current status, future perspectives

Plants, People, Planet, 2020
Societal Impact Statement Plant and fungal specimens provide the auditable evidence that a particular organism occurred at a particular place, and at a particular point in time, verifying past occurrence and distribution.
Alan Paton, Alexandre Antonelli, Mark Carine, Rafaela Campostrini Forzza, Nina Davies, Sebsebe Demissew, Gabriele Dröge, Tim Fulcher, Aurelie Grall, Norbert Holstein, Meirion Jones, Udayangani Liu, Joe Miller, Justin Moat, Nicky Nicolson, Matthew Ryan, Suzanne Sharrock, David Smith, Barbara Thiers, Janine Victor, Tim Wilkinson, John Dickie   +21 more
doaj   +1 more source

Factors Affecting Targeted Sequencing of 353 Nuclear Genes From Herbarium Specimens Spanning the Diversity of Angiosperms

Frontiers in Plant Science, 2019
The world’s herbaria collectively house millions of diverse plant specimens, including endangered or extinct species and type specimens. Unlocking genetic data from the typically highly degraded DNA obtained from herbarium specimens was difficult until ...
G. Brewer, J. J. Clarkson, O. Maurin, A. Zuntini, V. Barber, S. Bellot, Nicola Biggs, R. Cowan, Nina M J Davies, S. Dodsworth, S. Edwards, W. Eiserhardt, Niroshini Epitawalage, S. Frisby, A. Grall, P. Kersey, L. Pokorny, I. Leitch, F. Forest, W. Baker   +19 more
semanticscholar   +1 more source

Tracking the origin of invasive Rosa rubiginosa populations in Argentina [PDF]

, 2011
The exact geographic origin of invasive species populations is rarely known; however, such knowledge is vital to understanding species’ invasion success, spread, and evolution as well as for assessing any biological control options.
Hensen, Isabell, Hirsch, Heidi, Renison, Daniel, Ritz, Christiane M., von Wehrden, Henrik, Welk, Erik, Wesche, Karsten, Wissemann, Volker, Zimmermann, Heike   +8 more
core   +1 more source

LeafMachine: Using machine learning to automate leaf trait extraction from digitized herbarium specimens

Applications in Plant Sciences, 2020
Premise Obtaining phenotypic data from herbarium specimens can provide important insights into plant evolution and ecology but requires significant manual effort and time.
William N. Weaver, J. Ng, Robert G. Laport   +2 more
semanticscholar   +1 more source

Conservation Assessment for Whorled Rosinweed (Silphium trifoliatum L.) [PDF]

, 2004
issued October 1, 2004Report issued on: October 1, 2004INHS Technical Report prepared for USDA Forest Service, Eastern ...
Molano-Flores, Brenda
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Szulczewski’s Fungarium—A Collection of Fungi on Their Host Plants in the POZ Herbarium, Poznań, Poland

Diversity
The fungarium was collected by Jerzy Wojciech Szulczewski in the Wielkopolska region in Western Poland in 1909–1911, 1928, and 1960–1966 (nine volumes). It includes dried plant specimens with disease symptoms of fungal origin and is currently located in ...
Elżbieta Zenkteler, Zbigniew Celka, Piotr Szkudlarz, Joanna Nita   +3 more
doaj   +1 more source

A New Method for Counting Reproductive Structures in Digitized Herbarium Specimens Using Mask R-CNN

bioRxiv, 2020
Phenology–the timing of life-history events–is a key trait for understanding responses of organisms to climate. The digitization and online mobilization of herbarium specimens is rapidly advancing our understanding of plant phenological response to ...
Charles C. Davis, Julien Champ, Daniel S. Park, Ian K. Breckheimer, Goia M. Lyra, Junxi Xie, A. Joly, Dharmesh Tarapore, A. Ellison, P. Bonnet   +9 more
semanticscholar   +1 more source

Tipificació de dos noms Cavanillesians, Galium Fruticescens (Rubiaceae) i Scorzonera pumila (Compositae) [PDF]

, 2019
The Cavanillesian names Galium fruticescens and Scorzonera pumila, basionym of Launaea pumila, are lectotypified from original specimens preserved in the Cavanilles herbarium in the Royal Botanic Garden of Madrid (MA).Els noms cavanillesians Galium ...
Ferrer-Gallego, P. Pablo, Gómez, José, Laguna Lumbreras, Emilio, Peris, Juan B., Roselló, Roberto   +4 more
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