Results 31 to 40 of about 1,548 (166)

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

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

Flooding affects fluctuating asymmetry but not growth of a riparian orbweaving spider

open access: yesEcological Entomology, EarlyView.
In a mesocosm experiment we assessed the impact of flood on aquatic insect emergence and on spider development using geometric morphometric analysis of fluctuating asymmetry. We observed 45% higher emergence in flooded mesocosm throughout the season. Spiders did not grow bigger but exhibited ~15% lower fluctuating asymmetry than in controls.
Stephane Mutel   +10 more
wiley   +1 more source

An observation on the Odonata fauna of the Asansol-Durgapur Industrial Area, Burdwan, West Bengal, India

open access: yesJournal of Threatened Taxa, 2016
The present investigation was undertaken as a pilot study to examine the diversity, occurrence and distribution pattern of dragonflies and damselflies (Odonata) from the selected study sites of the Asansol-Durgapur industrial area of Burdwan District of ...
Amar Kumar Nayak, Utpal Singha Roy
doaj   +1 more source

Increased duration of extreme thermal events negatively affects cold acclimation ability in a high-latitude, freshwater ectotherm (Ischnura elegans; Odonata: Coenagrionidae)

open access: yesEuropean Journal of Entomology, 2020
Instances of heat waves and cold snaps are becoming more frequent and of increasing duration worldwide. It is well established that short exposure to high or low-temperatures, such as during extreme weather events, often results in adaptive (acclimation ...
Lesley A. SMITH, Lesley T. LANCASTER
doaj   +1 more source

Cost of parasite exposure depends on host ontogeny 寄生接觸的代價依賴於宿主發育階段

open access: yesEcological Entomology, EarlyView.
The cost of parasite exposure varies across host developmental stages, demonstrating that ontogeny influences the expression of non‐consumptive effects (NCEs). Mite exposure resulted in consumptive effects in fly eggs and NCEs in early‐stage pupae; mite longevity was comparable when provisioned with pupae or water but increased when provisioned with ...
Lisa R. MacLeod   +2 more
wiley   +1 more source

Physicochemical Properties as Driver of Odonata Diversity in Oil Palm Waterways

open access: yesFrontiers in Forests and Global Change, 2021
Large-scale oil palm agriculture has caused deforestation in the tropics, but also degrades stream water quality and reduces aquatic biodiversity.
Muhamad Ishak   +7 more
doaj   +1 more source

An experimental examination of dispersal decisions made by flight‐capable heteropteran insects in urban stormwater pond conditions

open access: yesEcological Entomology, EarlyView.
Salty conditions in urban stormwater ponds can influence dispersal timing in species‐specific ways for actively dispersing aquatic heteropteran insects. Assaying multiple aspects of dispersal propensity, Hesperocorixa obliqua emigrated earlier in stormwater pond conditions while overall probabilities remained unchanged; Notonecta undulata emigration ...
Ilia Maria C. Ferzoco   +1 more
wiley   +1 more source

Odonata Assemblages in Urban Semi-Natural Wetlands

open access: yesInsects
As the human population in urban areas is continuously growing, urbanization is one of the greatest threats to biodiversity. To mitigate the negative effects, the inclusion of blue zones (aquatic habitats) in modern urban development practices is ...
Marina Vilenica   +7 more
doaj   +1 more source

Dragonflies and damselflies of University of North Bengal campus, West Bengal, India with new distribution record of Agriocnemis kalinga Nair & Subramanian, 2014

open access: yesJournal of Threatened Taxa, 2017
A study was made to determine the present status of the diversity of the dragonflies and damselflies from University of North Bengal campus and its surroundings.
Aaratrik Pal
doaj   +1 more source

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