Results 31 to 40 of about 21,165 (227)

The macrozoobenthic community of the Santa Gilla lagoon (southern Sardinia, Italy) [PDF]

open access: yes, 2014
1 - Macrozoobenthos is one of the most significant communities of hydrobionts for assessing the ecological state of a water body. In spite of its importance, only few data concerning the macrobenthic community of Santa Gilla lagoon are available; 2 ...
Cabiddu, Serenella   +4 more
core   +1 more source

Longitudinal patterns in an Arkansas River Valley stream: an Application of the River Continuum Concept [PDF]

open access: yes, 2017
The River Continuum Concept (RCC) provides the framework for studying how lotic ecosystems vary from headwater streams to large rivers. The RCC was developed in streams in eastern deciduous forests of North America, but watershed characteristics and land
Adams, S. R.   +9 more
core   +3 more sources

Volumetric Comparison of Overall Brain and Neuropil Size Between Social and Non‐social Spiders: Exploring the Social Brain Hypothesis

open access: yesIntegrative Zoology, EarlyView.
Brain size may be influenced by the cognitive demands of sociality (social brain hypothesis). We used microCT to compare CNS and brain volumes in social versus solitary huntsman and crab spiders. Social huntsman spiders had larger arcuate and mushroom bodies, while social crab spiders had larger visual neuropils.
Vanessa Penna‐Gonçalves   +6 more
wiley   +1 more source

Isopods of the genus Arcturella (Valvifera: Arcturidae) from the expedition FAUNA I (S. Spain) with description of a new species

open access: yesScientia Marina, 2002
Three specimens of the genus Arcturella (Crustacea: Isopoda: Valvifera: Arcturidae) were collected in the oceanographic expedition FAUNA I (S Spain). The specimens are fully described and illustrated, and a new species, Arcturella estherae sp.
L. Rodríguez Sánchez, J. Junoy
doaj   +1 more source

Data on the terrestrial Isopoda fauna of the Alsó-hegy, Aggtelek National Park, Hungary [PDF]

open access: yes, 2008
Field surveys in dolines of Alsó-hegy, Aggtelek Karst (Hungary) yielded 10 terrestrial isopod species. Despite of the relatively low species richness, we would like to emphasize the high naturalness of the area indicated by the presence of endemic and
Farkas, Roland   +7 more
core  

Marine alien species in Italy: A contribution to the implementation of descriptor D2 of the Marine Strategy Framework Directive [PDF]

open access: yes, 2019
A re-examination of marine alien species or Non Indigenous Species (NIS) reported in Italian Seas, until December 2018, is provided, focusing on establishment success, year of first record, origin, potential invasiveness, and likely pathways, in ...
Andaloro F.   +20 more
core   +3 more sources

Beyond species diversity: Functional responses of cave arthropods to microclimatic stability and structural complexity

open access: yesEcological Entomology, EarlyView.
Species richness declined along cave microclimatic gradient, while diversity increased with habitat heterogeneity, highlighting distinct roles of abiotic conditions and structural complexity in shaping arthropod communities. Functional traits shifted along the microclimatic gradient, with larger‐bodied and more eye‐regressed arthropods dominating under
Raluca Ioana Bǎncilǎ   +7 more
wiley   +1 more source

Morphological variance in cave and surface populations of Asellus aquaticus challenges the fluctuating selection and greater male variability hypotheses

open access: yesFrontiers in Ecology and Evolution
IntroductionFluctuating selection, the changes in the strength and/or direction of natural selection stemming from fine-scale spatio-temporal environmental variation, is a fundamental, yet rarely tested explanation for the maintenance of phenotypic ...
Anna Biró   +12 more
doaj   +1 more source

Nest boxes as microhabitats supporting diverse arthropod communities

open access: yesEcological Entomology, EarlyView.
Diverse Micro‐Habitats: Nest boxes supported 3634 arthropods from 82 families, highlighting their significant conservation value as artificial micro‐habitats for diverse invertebrate communities beyond their primary use for birds. Occupancy Boosts Diversity: Occupied nests exhibited significantly higher arthropod richness, abundance and Shannon ...
Ailsa M. Miller   +3 more
wiley   +1 more source

Evaluating and Advancing the Use of Shore‐Based Observers for Scientific Sampling and Catch Verification in High‐Volume Fisheries

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens   +2 more
wiley   +1 more source

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