Results 21 to 30 of about 157 (117)
Ecology and Evolution, Volume 10, Issue 16, Page 8936-8948, August 2020., 2020 We quantified the color lightness and body volume of 99 European dragon‐ and damselflies (Odonata) and combined this trait information with survey data for 518 local assemblages across Europe to test whether trait‐environment relationships previously reported at coarse spatial scales also hold for spatially explicit local assemblages.
Daniel Acquah‐Lamptey +3 more
wiley +1 more source
A dark colour form of Cordulegaster heros (Odonata: Cordulegastridae) [PDF]
Casopis slezského zemského muzea (A), 2011 A dark colour form of Cordulegaster heros (Odonata: Cordulegastridae) In July 2010 a dark colour form of the male of Cordulegaster heros was recorded at the Kamenný potok stream in the village of Modra-Piesok in the southern part of the Malé Karpaty Mts. in Slovakia.
openaire +1 more source
Ecology and Evolution, Volume 9, Issue 3, Page 1410-1430, February 2019., 2019 Predator–prey relationships are important ecological interactions, affecting biotic community composition and energy flow through a system. This study used sequences from the 18S V9 rRNA barcoding region to identify prey items in the gastrointestinal (GI) tracts of predators taken from the Black River, Cheboygan Co., MI (n = 367 samples, 12 predator ...
Justin M. Waraniak +2 more
wiley +1 more source
International Journal of Odonatology, 2023 Some structural characters, such as wing venation, have been used in odonates to differentiate taxa. In Cordulegaster boltonii, a species widely distributed throughout the western Palaearctic, the main characteristics of its wing venation have not been quantified until now.
Nunes, Luísa +7 more
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International Journal of Ecology, Volume 2014, Issue 1, 2014., 2014 Aquatic environments are being modified by anthropogenic activities regarding their biological, physical, and chemical conditions; even pristine aquatic ecosystems can be threatened. This study focused on the biological monitoring of Maroaga Stream—a first order stream located in an Environmental Protection Area in the Amazon using the Biological ...
Christiane Brito Uherek +2 more
wiley +1 more source
Water availability and land‐use shape the diversity of Odonata in the Middle East
Insect Conservation and Diversity, Volume 19, Issue 3, Page 621-633, May 2026.Odonata diversity in the Middle East depends on the availability of long‐lasting waters, emphasizing the importance of preserving stable aquatic habitats for biodiversity conservation under climate change‐driven droughts. Agricultural expansion is associated with increased Odonata species richness, but overall trait diversity remains limited ...
Zohreh Eslami Barzoki, Jonathan Chase
wiley +1 more source
Biological Invasion and Coexistence in Intraguild Predation
Journal of Applied Mathematics, Volume 2013, Issue 1, 2013., 2013 Invasion of an exotic species initiated by its local introduction is considered subject to intraguild predation (IGP). Mathematically, the system dynamics is described by three nonlinear diffusion‐reaction equations in two spatial dimensions. The key factors that determine successful invasion are investigated by means of extensive numerical simulations.
Wenting Wang +3 more
wiley +1 more source
Integrating eDNA and community science to monitor urban Odonata diversity
Insect Conservation and Diversity, Volume 19, Issue 1, Page 84-92, January 2026.Environmental DNA captured rare and underrepresented taxa often missed by community science observations. Community science revealed adult‐stage observations across a broader temporal window. Integrating both methods improved detection across life stages, seasons, and species prevalence.
Rhema Uche‐Dike +25 more
wiley +1 more source
Freshwater Biology, Volume 70, Issue 7, July 2025.ABSTRACT Aquatic insects are an abundant, yet declining, taxonomically heterogeneous group with special importance in both aquatic and terrestrial ecosystems. Accurate estimations of insect biomass during their aquatic life stages are essential to advance our fundamental knowledge about insects, their roles in ecosystems, and their vulnerability to ...
Casper H. A. van Leeuwen +4 more
wiley +1 more source
Biometrics of exuviae ofCordulegaster boltonii algiricaMorton, 1916 (Odonata: Cordulegastridae)
Aquatic Insects, 2018 This study provides the first biometrics analysis of exuviae from Moroccan populations of the Ibero-Maghrebian endemic dragonfly Cordulegaster boltonii algirica Morton, 1916 collected in the Rif Mo...
Mohamed El Haissoufi +4 more
openaire +1 more source