Results 31 to 40 of about 7,651 (208)

Impact of a small artificial water source on the diversity of odonates (Insecta : Odonata) in an urban landscape [PDF]

open access: yesArthropods, 2021
Rapid urbanisation is mainly responsible for the degradation and fragmentation of natural ecosystems in urban areas. Dragonflies and damselflies (Odonata) constitute an important part of urban biodiversity.
Pawan U. Gajbe
doaj  

Field estimates of reproductive success in a model insect: behavioural surrogates are poor predictors of fitness [PDF]

open access: yes, 2011
Understanding, and therefore measuring, factors that determine fitness is a central problem in evolutionary biology. We studied a natural population of Coenagrion puella (Odonata: Zygoptera) over two entire breeding seasons, with over a thousand ...
Albon   +49 more
core   +1 more source

Can damselfly larvae serve as bioindicator species for assessing contamination of organophosphate esters in aquatic environments?

open access: yesEcological Indicators
Damselfly larvae have been widely used to evaluate the environmental quality of freshwater ecosystems. However, there have been limited studies on the pollution characteristics of organophosphate esters (OPEs) in damselfly larvae. This study investigated
Wanru Zhang   +9 more
doaj   +1 more source

Odonate species occupancy frequency distribution and abundance–occupancy relationship patterns in temporal and permanent water bodies in a subtropical area

open access: yesEcology and Evolution, 2020
This paper investigates species richness and species occupancy frequency distributions (SOFD) as well as patterns of abundance–occupancy relationship (SAOR) in Odonata (dragonflies and damselflies) in a subtropical area.
Samuel Renner   +4 more
doaj   +1 more source

Complete mitochondrial genomes of two damselfly species in coenagrionidae and phylogenetic implications

open access: yesMitochondrial DNA. Part B. Resources, 2021
Agriocnemis femina (Brauer, 1868) and Ischnura senegalensis (Rambur, 1842) are two damselflies inhabiting paddy lands. As an intermediate predator, they play an important role in controlling certain crop pest and mosquitoes.
Bin Jiang   +7 more
doaj   +1 more source

The Importance of Different Biomes (Atlantic Forest, Cerrado, and Caatinga) in the Regional Structuring of Neotropical Dragonfly Assemblages

open access: yesDiversity
Understanding how assemblages are structured is important for ecology, especially in tropical regions that exhibit high biodiversity and are currently experiencing high rates of loss and modification of natural environments caused by anthropogenic ...
Karolina Teixeira   +4 more
doaj   +1 more source

Evolution determines how global warming and pesticide exposure will shape predator‐prey interactions with vector mosquitoes [PDF]

open access: yes, 2016
How evolution may mitigate the effects of global warming and pesticide exposure on predator–prey interactions is directly relevant for vector control.
de Beeck, Lin Op   +4 more
core   +2 more sources

Regional variations in occupancy frequency distribution patterns between odonate assemblages in Fennoscandia

open access: yesEcosphere, 2018
Odonate (damselfly and dragonfly) species richness and species occupancy frequency distributions (SOFDs) were analyzed in relation to geographical location in standing waters (lakes and ponds) in Fennoscandia, from southern Sweden to central Finland.
Esa Korkeamäki   +4 more
doaj   +1 more source

Sex- and morph-specific predation risk: Colour or behaviour dependency?

open access: yesEuropean Journal of Entomology, 2004
The coexistence of discrete morphs within a species, with one morph more conspicuous than the other(s) is often thought to result from both sexual selection and predation.
Hans VAN GOSSUM   +3 more
doaj   +1 more source

Thermal response of two sexually dimorphic Calopteryx (Odonata) over an ambient temperature range

open access: yesEcology and Evolution, 2020
Organisms may internally or behaviorally regulate their body temperatures or conform to the ambient air temperatures. Previous evidence is mixed on whether wing pigmentation influences thermoregulation in various odonates.
Gretchen D. Schreiner   +2 more
doaj   +1 more source

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