Results 41 to 50 of about 7,645 (228)

Aquatic Macrophyte Vegetation Promotes Taxonomic and Functional Diversity of Odonata Assemblages in Intermittent Karst Rivers in the Mediterranean

open access: yesDiversity, 2022
Assemblages of adult Odonata were studied in four intermittent karst rivers encompassing macrophyte-rich (MRH) and macrophyte-poor habitats (MPH) in southern Europe, where temporary lotic habitats are the predominant freshwater type but are still ...
Marina Vilenica   +6 more
doaj   +1 more source

Water Quality Assessment of Sager Creek Utilizing Physiochemical Parameters and a Family-Level Biotic Index [PDF]

open access: yes, 2013
An annual rapid bioassessment and physiochemical survey of Sager Creek in Northwest Arkansas was conducted. Sager Creek is a first to second order stream that flows through the city of Siloam Springs, AR.
Wakefield, T. S.
core   +3 more sources

Age-dependent induction of immunity and subsequent survival costs in males and females of a temperate damselfly

open access: yesBMC Ecology, 2006
Background To understand variation in resistance to parasites within host populations, researchers have examined conditions under which immunity is induced and/or is costly.
Forbes Mark R, Robb Tonia
doaj   +1 more source

A Bibliometric Analysis of the Global Research in Odonata: Trends and Gaps

open access: yesDiversity, 2022
Insects of the order Odonata have been used as indicators of environmental quality in different aquatic systems around the world. In this context, we conducted a bibliometric analysis to understand the general patterns of research on Odonata published in
José Max Barbosa Oliveira-Junior   +7 more
doaj   +1 more source

Wings of Coenagrion puella vary in shape at the northern range margin (Odonata: Coenagrionidae) [PDF]

open access: yes, 2008
A previous study has shown that wing size in Coenagrion puella varied considerably along a latitudinal gradient in the UK. Using landmark data from wing images, patterns of shape variation were also determined along the same transect by geometric ...
Harvey, IF, Hassall, C, Thompson, DJ
core   +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

Do egg parasitoids increase the tendency of Lestes sponsa (Odonata: Lestidae) to oviposit underwater?

open access: yesEuropean Journal of Entomology, 2015
The selection of oviposition sites by insects can significantly affect egg mortality. Spreadwing damselflies (Odonata: Lestidae) predominantly lay their eggs in parts of plants growing above the surface of water and only occasionally also those parts ...
Filip HARABIŠ   +3 more
doaj   +1 more source

Predicting the distributions of under-recorded Odonata using species distribution models [PDF]

open access: yes, 2012
1. Absences in distributional data may result either from the true absence of a species or from a false absence due to lack of recording effort. I use general linear models (GLMs) and species distribution models (SDMs) to investigate this problem in ...
Abbott J.C.   +10 more
core   +1 more source

Beyond Sexual Selection: Natural Selection Related Camouflage and Thermoregulation Shape Sexual Color Dimorphism in Diploderma Lizards

open access: yesIntegrative Zoology, EarlyView.
Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley   +1 more source

INVENTORY OF DRAGONFLIES AND DAMSELFLIES (ODONATA) IN ANDALAS UNIVERSITY’S LIMAU MANIS CAMPUS COMPLEX, PADANG: USING PHOTOGRAPHICAL APPROACH

open access: yesJurnal Natural, 2018
Odonata, which consists of true dragonflies and damselflies, is considerably understudied in Sumatra, especially in West Sumatra region. While the campus area of Andalas University in Limau Manis provides many suitable habitats for dragonflies and ...
Muhammad Nazri Janra
doaj   +1 more source

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