Results 21 to 30 of about 1,324 (181)

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  

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

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

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

The Effect of Age on Survival Is Similar in Males and Females of an Aquatic Insect Species

open access: yesEcologies
Age is a critical intrinsic factor that influences the probability of survival of organisms on Earth. In many animals, the lifestyles and habitat occupancy of males and females are so different that the effect of age could be sex-dependent.
Abdeldjalil Youcefi   +7 more
doaj   +1 more source

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

Characterization of the nearly complete mitochondrial genome of ochraceous darkies, Euphaea ochracea Selys, 1859 (Odonata: Zygoptera: Euphaeidae) and phylogenetic analysis

open access: yesMitochondrial DNA. Part B. Resources, 2023
In the present study, the nearly complete mitochondrial genome of Euphaea ochracea was described and its phylogenetic position in the family Euphaeidae was analyzed.
Marylin Miga   +7 more
doaj   +1 more source

Iflaviruses in arthropods: when small is mighty

open access: yesInsect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia   +3 more
wiley   +1 more source

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