ConDidact Citizen Science Surveys - Spiders 2004 Butterflies 2005

Danish: Den store Sommerfuglejagt 2005 + Den store Edderkoppejagt 2004. Occurrence dataset created by two citizen science projects, conducted in August and September, 2004 (Spiders), and in August to October, 2005 (Butterflies), in Denmark. The survey was organized by ConDidact (Danish private company with several websites used for teaching pupils about e.g. Danish animals, www.danske-dyr.dk). In the Spider survey, the participants searched for 3 species of spiders: • Araneus diadematus (Garden Cross Spider, Danish: Korsedderkop) • Araneus quadratus (Four Spot Orb Weaver, Danish: Kvadratedderkop) • Argiope bruennichi (Orb-weaving Spider, Danish: Hvepseedderkop) In the Butterfly survey, the participants searched for 6 species of butterflies: • Vanessa atalanta (Red Admiral, Danish: Admiral) • Aglais io (Peacock Butterfly, European Peacock , Danish: Dagpåfugleøje) • Polygonia c-album (Comma Butterfly, Danish: Det Hvide C) • Aglais urticae (Small Tortoiseshell, Danish: Nældens takvinge) • Nymphalis antiopa (Mourning Cloak, Camberwell Beauty, Danish: Sørgekåbe) • Vanessa cardui (Painted Lady, Danish: Tidselsommerfugl) The project invited the public to search for specific species in their local area. Species descriptions, instructions etc. were made available on a project website (http://danske-dyr.dk/Sv%C3%A6r/naturjagter/Den%20store%20Edderkoppejagt%202004/ and http://danske-dyr.dk/Sv%C3%A6r/naturjagter/Den%20store%20sommerfuglejagt%202005/). Observations of species could be submitted through an online form. The species observations were documented by digital photos, and later were validated by scientific experts.