Results 21 to 30 of about 715 (157)
Andromorphic Crocothemis servilia (Drury) (Odonata: Libellulidae): new records from India
Revista Chilena de Entomología, 2019 Six new records of andromorphic Crocothemis servilia from Eastern India are described here. Detail comparisons of the andromorphic female with mature male and female of this species are given.
Arajush Payra
doaj +1 more source
Resource use, niche width, and trophic position reveal diverse trophic structure in a tidal freshwater zone fish community. [PDF]
J Fish BiolAbstract The tidal freshwater zone is an aquatic transition zone that links a river to its estuary and provides an important habitat used in the life cycle of resident and migratory fishes. Yet, information on the trophic structure of fishes in this habitat is scarce. To address this gap, we characterize the trophic structure of a fish community in the
Bowser EE, Tunney TD, Breau C, Hayden B.
europepmc +2 more sources
Rapid geographic divergence in competitive ability of cane toad larvae (Rhinella marina) during a biological invasion. [PDF]
EcologyAbstract Low population densities at the expanding edge of a biological invasion are predicted to reduce intraspecific competition such that invading organisms evolve to prioritize adaptations for rapid rates of population growth and dispersal over those that facilitate success in competitive interactions.
Clarke GS +3 more
europepmc +2 more sources
Neuroptera of the Amazon BasinPart 6. Mantispidae [PDF]
Acta Amazonica, 1982 The 27 species of Mantispidae known from the Amazon Basin are described, keys are presented to their identification, and distributions recorded. Seven new species are recorded for the first time: Plega beardi, Plega duckei, Plega paraense, Trichoscelia ...
Norman D. Penny
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Visual Cues Can Alter the Behavioural Responses of Dragonfly Larvae to Chemical Alarm Cues
Ethology, EarlyView.Using a controlled experimental approach, we examined how chemical and visual cues influence antipredator behaviour in Aeshna cyanea larvae and tested whether risk‐related information can be socially transmitted among nearby conspecifics. Our results show that dragonfly larvae do not copy the antipredator responses of others, but visual cues alter how ...
Zoltán Tóth +3 more
wiley +1 more source
The development of sexual differences in body size in Odonata in relation to mating systems
European Journal of Entomology, 2007 Adult body size is the result of important environmental, maternal and/or genetic effects acting on animals during development. Here we investigate how sexual size dimorphism (SSD) develops in seven species of Odonata: Anax imperator, Cordulegaster ...
Martin-Alejandro SERRANO-MENESES +3 more
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Diversity, 2022 Understanding how changes in species richness pattern correlate with range changes in different taxonomic and biogeographic groups is important for conservation because it allows for generalizations about which species are at greatest risk.
Kent Olsen +2 more
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HOPEAPHENOL-O-GLYCOSIDE, A COMPOUND ISOLATED FROM STEM BARK Anisoptera marginata (Dipterocarpaceae)
Indonesian Journal of Chemistry, 2010 Isolation and structure elucidation of some compounds from stem bark of Anisoptera marginata had been done. The isolation of those compounds was carried out by chromatographyc method and structure elucidation was performed by interpretation of ...
Sri Atun
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Forest Loss Influences Biomass Distribution Across Trophic Groups of Amazonian Stream Insects
Freshwater Biology, Volume 71, Issue 2, February 2026.ABSTRACT Changes in resource availability caused by deforestation can negatively impact freshwater ecosystems, with implications for trophic chains. We investigated both the direct and indirect effects of forest cover and allochthonous resource availability on the biomass distribution of larvae of aquatic insects (Ephemeroptera, Plecoptera, Trichoptera
Gabriel Martins Cruz +8 more
wiley +1 more source
Plant Traits as Potential Drivers of Timber Value in the Dipterocarpaceae
Ecology and Evolution, Volume 16, Issue 1, January 2026.This study examines how plant traits and wood density influence timber market value in Southeast Asia's Dipterocarpaceae family. Using a phylogenetic approach, it finds that higher wood density is linked to greater timber prices, while conservation status does not correlate with market value.
Nazrin Malik +2 more
wiley +1 more source