Results 31 to 40 of about 3,655 (147)

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   +3 more
core   +2 more sources

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

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

Predators and resources influence phosphorus transfer along an invertebrate food web through changes in prey behaviour. [PDF]

open access: yesPLoS ONE, 2013
Predators play a fundamental role in prey trophic behaviour, with indirect consequences for species coexistence and ecosystem functioning. Resource quality and availability also influence prey trophic behaviour, with potential effects on predator-prey ...
Edoardo Calizza   +2 more
doaj   +1 more source

Morphometric data ecomorphs Asellus aquaticus

open access: yes, 2015
Morphometric data: List of 60 traits used in morphometric analysis of surface and subterranean Asellus aquaticus ecomorphs from Slovenia and Romania. Means, standard deviations (SD) and standard errors (SE) of 60 morphometric traits (listed in Table A ...
Simona Prevorčnik (3266463)   +9 more
core   +1 more source

SIMPLE DNA REPEATS AND SEX-CHROMOSOME DIFFERENTIATION IN ASELLUS-AQUATICUS (CRUSTACEA, ISOPODA)

open access: yes, 1995
The crustacean isopod species Asellus aquaticus does not usually have recognizable sex chromosomes. We previously identified a Y chromosome marked by two heterochromatic bands in some males of a population from the Sarno river near Naples. In this work
F Pelliccia   +20 more
core   +1 more source

Candidate gene placement on Asellus aquaticus linkage map.

open access: yes, 2015
Candidate gene placement on Asellus aquaticus linkage map.
Meredith E. Protas (812597)   +6 more
core   +1 more source

The role of isolation on contrasting phylogeographic patterns in two cave crustaceans

open access: yesBMC Evolutionary Biology, 2017
Background The underlying mechanisms and processes that prompt the colonisation of extreme environments, such as caves, constitute major research themes of evolutionary biology and biospeleology.
Jorge L. Pérez-Moreno   +4 more
doaj   +1 more source

Contemporary parallel diversification, antipredator adaptations and phenotypic integration in an aquatic isopod. [PDF]

open access: yesPLoS ONE, 2009
It is increasingly being recognized that predation can be a strong diversifying agent promoting ecological divergence. Adaptations against different predatory regimes can emerge over short periods of time and include many different traits.
Fabrice Eroukhmanoff, Erik I Svensson
doaj   +1 more source

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