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Helen Roy

3 books

Field Guide to Invasive Plants and Animals in Britain by Olaf Booy, Max Wade, Helen Roy

Field Guide to Invasive Plants and Animals in Britain

Olaf Booy, Max Wade, Helen Roy

304 pages • paperback • 2013

challenging informative medium-paced
Field Guide to the Ladybirds of Great Britain and Ireland by Peter Brown, Helen Roy

Field Guide to the Ladybirds of Great Britain and Ireland

Field Guides

Peter Brown, Helen Roy

160 pages • hardcover

nonfiction nature
Study on: Invasive alien species – framework for the identification of invasive alien species of EU concern by Karsten Schonrogge, Marianne Kettunen, Sonia Vanderhoeven, Hannah Dean, Piero Genovesi, Jodey peyton, Wolfgang Rabitsch, Franz Essl, Leonardo Mazza, Riccardo Scalera, James Kemp, Stefan Schindler, Etienne Branquart, Alan Stewart, Marc Kenis, Gordon Copp, Ana Nieto, Helen Roy, Paul Stebbing, Sarah Brunel
Study on: Invasive alien species – framework for the identification of invasive alien species of EU concern
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Karsten Schonrogge, Marianne Kettunen, Sonia Vanderhoeven, Hannah Dean, Piero Genovesi, Jodey peyton, Wolfgang Rabitsch, Franz Essl, Leonardo Mazza, Riccardo Scalera, James Kemp, Stefan Schindler, Etienne Branquart, Alan Stewart, Marc Kenis, Gordon Copp, Ana Nieto, Helen Roy, Paul Stebbing, Sarah Brunel

Study on: Invasive alien species – framework for the identification of invasive alien species of EU concern

Karsten Schonrogge, Marianne Kettunen, Sonia Vanderhoeven, Hannah Dean, Piero Genovesi, Jodey peyton, Wolfgang Rabitsch, Franz Essl, Leonardo Mazza, Riccardo Scalera, James Kemp, Stefan Schindler, Etienne Branquart, Alan Stewart, Marc Kenis, Gordon Copp, Ana Nieto, Helen Roy, Paul Stebbing, Sarah Brunel

298 pages • paperback • 2014

medium-paced