Results 41 to 50 of about 628 (126)

Historical changes in the phenology of British Odonata are related to climate [PDF]

open access: yes, 2007
Responses of biota to climate change take a number of forms including distributional shifts, behavioural changes and life history changes. This study examined an extensive set of biological records to investigate changes in the timing of life history ...
Ando H   +34 more
core   +1 more source

Useful biometric variables in Iberian exuviae of Boyeria irene (Fonscolombe, 1838) (Odonata: Aeshnidae) [PDF]

open access: yes, 2021
In species of similar shape and size, biometric analyses make it possible to establish differences. Within one species, biometrics can help researchers to detect differences between populations and analyze their adaptations to environmental conditions ...
Campos, F. (Francisco)   +4 more
core   +2 more sources

Phenology of aquatic insects in a protected wetland (Natura 2000 network) in northwestern Spain [PDF]

open access: yes, 2010
The aim of this study was to gather new data about the life cycle phenologies of several species of aquatic insects in the "Gándaras de Budiño" (Galicia, NW Spain) protected wetland, included in the Natura 2000 network. During an annual cycle (2004-2005),
Alonso Pérez, Ana Isabel   +2 more
core   +1 more source

Non-formal learning experience on dragonflies (Insecta: Odonata) for students of Primary and Secondary Education within the Science Week [PDF]

open access: yes, 2019
Una versión parcial de este trabajo, con análisis preliminares de los dos primeros cursos, fue presentada en el II Simposio Ibérico de Odonatología en Lugo -> http://hdl.handle.net/10651/47688Entre las actividades propuestas por la Universidad de Oviedo
Torralba Burrial, Antonio
core  

Life History Phenology and Sediment Size Association of the Dragonfly Cordulegaster dorsalis (Odonata: Cordulegastridae) in an Ephemeral Habitat in Southwestern British Columbia [PDF]

open access: yes, 2006
The life cycle of the dragonfly Cordulegaster dorsalis was studied over one year by systematic sampling of larvae in three intermittent headwater streams in southwestern British Columbia.
Classen, Marie-Claire   +2 more
core   +2 more sources

Invasion of a stream food web by a new top predator. [PDF]

open access: yes, 1999
PhDA large predator, the nymph of the dragonfly Cordulegaster boltonii (Anisoptera) (Donovan), has recently invaded Broadstone Stream, an acid headwater in southern England.
Woodward, Guy
core  

Gomphus Nieuwsbrief Jaargang 4 — Nr. 1 (2010) [PDF]

open access: yes, 2010
In dit nummer: Landelijke Libellenstudiedag van de Nederlandse Vereniging voor Libellenstudie (NVL)n Zwolle op 13 maart 2010 * Nieuwe Europese Rode Lijst * Oproep: medewerking aan een onderzoek naar de noordwaarts uitbreidende gaffelwaterjuffer ...
Libellenvereniging Vlaanderen
core  

Cordulegaster bidentata Sélys, 1843 [PDF]

open access: yes
Conservation status and Spanish distribution of threatened invertebrate species is evaluated. Distribution, life cycles and species biology rewieved.
Azpilicueta Amorín, Mónica   +4 more
core  

Бабки (ряд Odonata) [PDF]

open access: yes, 2016
Видання вміщує методичні вказівки щодо вивчення бабок під час проведення навчальної комплексної (зоолого-ботанічної) практики. У інформаційному матеріалі розглянуто особливості зовнішньої будови бабок, наведені рекомендації щодо збору цих комах, їх ...
Sukhomlin, Kateryna B.   +3 more
core  

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