Results 61 to 70 of about 36,946 (236)

Ecosystem engineers and functional dominance: when species loss matters for ecosystem function

open access: yesOikos, EarlyView.
Understanding when and why species loss affects community function in natural communities remains an open question in ecology. Recent cross‐system analyses have shown that functional dominance is associated with whether species loss matters: in communities dominated by few high‐performing species, lost species contribute little to function.
Gianluca Sarà   +2 more
wiley   +1 more source

Structure of Protistan Parasites Found in Bivalve Molluscs

open access: yes, 1988
The literature on the structure of protists parasitizing bivalve molluscs is reviewed, and previously unpublished observations of species of class Perkinsea , phylum Haplosporidia, and class Paramyxea are presented.
Perkins, Frank O.
core   +1 more source

Micronuclei and Other Nuclear Abnormalities in Patella Limpet as Biomarkers of Cytogenotoxicity in Recreational Port Waters

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Over the past decades, the growth in human population and economic activities has led to an increase in maritime traffic. This rise puts additional pressure on marine environments, vessel fuel spills being considered to have a major impact on the ecosystem.
Carlos Valiente‐Diaz   +2 more
wiley   +1 more source

Produção sustentável e controlada de ostras: ações em Santa Catarina rumo aos padrões internacionais de comercialização [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia de Produção, Florianópolis, 2014Santa Catarina posiciona-se atualmente como o segundo maior polo produtor de moluscos bivalves da
Jacomel, Bruno
core  

Predicting the carrying capacity of bivalve shellfish culture using a steady, linear food web model

open access: yes, 2005
An investigation into the potential carrying capacity of suspended bivalve culture was undertaken using a linear food web model. The investigation involved configuring the model for the present state using all available information, and then perturbing ...
Jiang, W., Gibbs, Mark T.
core   +1 more source

Mobile consumers influence the shoreward edge of intertidal seagrass ecosystems

open access: yesJournal of Animal Ecology, EarlyView.
Ecological paradigms suggest that the environmentally stressful edge of a habitat is determined by physical factors. The work finds that, counter to these paradigms, an environmentally stressful edge can also be impacted by biotic interactions and are more complex than suggested.
Stephanie R. Valdez   +4 more
wiley   +1 more source

The emergence and complexification of symbolic practices in the Homo lineage: an archaeological and cognitive perspective Émergence et complexification des pratiques symboliques dans la lignée Homo : une approche archéologique et cognitive

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Recent archaeological discoveries, reviewed in this essay, challenge traditional views on the emergence of human symbolic cognition. Once believed to have originated in Europe around 40,000 years ago, new evidence shows it emerged much earlier across diverse regions.
Francesco d'Errico   +3 more
wiley   +1 more source

ユムシ類の巣孔に棲む二枚貝ナタマメケボリガイの琉球列島における分布と生態 [PDF]

open access: yes, 2003
The lasaeid bivalve Pseudopythina ochetostomae was found at 6 tidal flats in the Ryukyu Islands, southern Japan, mainly attached to the wall of burrows inhabited by the two echiurans Listriolobus riukiuensis and Ochetostoma erythrogrammon.
久保, 弘文   +5 more
core  

Decoding Dual Regulatory Layers: Integrating Differential Expression and Alternative Splicing Dynamics in the Evolution of Laryngeal Echolocation Across Chiropteran Lineages

open access: yesIntegrative Zoology, EarlyView.
We integrated short‐read and long‐read RNA‐seq data from cochlear tissues of echolocating and non‐echolocating bats to disentangle transcriptional and post‐transcriptional regulation. Echolocating bats showed neural‐function enrichment among differentially expressed genes, while alternatively spliced genes were linked to epigenetic regulation. Overlaps
Jianyu Wu   +3 more
wiley   +1 more source

The Effects of Noise on the Juvenile Life Stage of Crustaceans: Behavioral, Cellular, and Molecular Responses in Procambarus clarkii

open access: yesIntegrative Zoology, EarlyView.
Juvenile Procambarus clarkii exposed to noise exhibited behavioral changes, shifts in enzymatic activity, and altered expression of stress and immune genes. The findings highlight the sensitivity of invertebrate juveniles to anthropogenic acoustic pollution.
Maria Ceraulo   +8 more
wiley   +1 more source

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