Results 31 to 40 of about 1,118 (199)

Leaf breakdown rates as a functional indicator were influenced by an invasive non-native invertebrate in urban ponds

open access: yesEcological Indicators, 2021
Impacts on biodiversity and the functioning of ecosystems are often overlooked in small waterbodies as they are not regularly monitored as part of the Water Framework Directive (WFD).
Ian Thornhill   +4 more
doaj   +1 more source

Determination of the Form of Regenerating Limbs in Asellus aquaticus [PDF]

open access: yesJournal of Cell Science, 1950
ABSTRACT The nerve-supply to the regenerating anterior pleopods of Asellus aquaticus influences the rate of regeneration but not the character of the regenerate. The tissues of the locality of the blastema determine the character of the regenerate and also influence the rate and extent of regeneration.
openaire   +2 more sources

Phenotypic plasticity in response to the social environment: effects of density and sex ratio on mating behaviour following ecotype divergence. [PDF]

open access: yesPLoS ONE, 2010
The ability to express phenotypically plastic responses to environmental cues might be adaptive in changing environments. We studied phenotypic plasticity in mating behaviour as a response to population density and adult sex ratio in a freshwater isopod (
Kristina Karlsson   +2 more
doaj   +1 more source

Island and Rensch’s rules do not apply to cave vs. surface populations of Asellus aquaticus

open access: yesFrontiers in Ecology and Evolution, 2023
Body size is a trait of fundamental ecological and evolutionary importance that is often different between males and females (sexual size dimorphism; SSD).
Gábor Herczeg   +9 more
doaj   +1 more source

Comparison of some epigean and troglobiotic animals regarding their metabolism intensity. Examination of a classical assertion

open access: yesInternational Journal of Speleology, 2019
This study determines oxygen consumption (R), electron transport system (ETS) activity and R/ETS ratio in two pairs of epigean and hypogean crustacean species or subspecies.
Tatjana Simčič, Boris Sket
doaj   +1 more source

Distribution, identification and range expansion of the common Asellidae in Northern Europe, featuring the first record of Proasellus meridianus in the Nordic countries

open access: yesFauna Norvegica, 2020
Two out of the three common Asellidae species in Northern Europe are increasing their ranges, aided by human activities. Here we report the discovery of Proasellus coxalis (Dollfuss 1892) in new areas in Norway and the discovery of Proasellus meridianus (
Joanna Lynn Kemp   +4 more
doaj   +1 more source

A New Species of the Genus Niphargus Schiödte, 1849 (Crustacea: Amphipoda: Niphargidae) from Groundwater Habitats of the Tarkhankut Upland, Crimean Peninsula

open access: yesDiversity, 2022
A new species of the genus Niphargus Schiödte, 1849 (Crustacea: Amphipoda), co-occurring with water louse Asellus cf. aquaticus (Linnaeus, 1758) (Crustacea: Isopoda) in deep wells, is described from the Tarkhankut Upland, located in the northwestern part
Ivan N. Marin   +3 more
doaj   +1 more source

Dietary Preference of Gammarus pulex and Asellus aquaticus during a Laboratory Breeding Programme for Ecotoxicological Studies

open access: yesInternational Journal of Zoology, 2011
An investigation was undertaken to establish if Gammarus pulex and Asellus aquaticus preferred a diet of unconditioned, artificially or naturally conditioned alder leaves (Alnus glutinosa).
M. C. Bloor
doaj   +1 more source

Locally differentiated cryptic pigmentation in the freshwater isopod Asellus aquaticus

open access: yes, 2005
A repeated pattern of background colour matching in animals is an indication that pigmentation may be cryptic. Here, we examine the relationship between pigmentation of the freshwater isopod Asellus aquaticus and background darkness in 29 lakes, wetlands
Stoltz, J   +2 more
core   +2 more sources

Collecting eco‐evolutionary data in the dark: Impediments to subterranean research and how to overcome them

open access: yesEcology and Evolution, 2021
Caves and other subterranean habitats fulfill the requirements of experimental model systems to address general questions in ecology and evolution. Yet, the harsh working conditions of these environments and the uniqueness of the subterranean organisms ...
Stefano Mammola   +7 more
doaj   +1 more source

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