Results 71 to 80 of about 36,115 (265)

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

Acta Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source

A limpet's eye view of post‐glacial isostasy: fixed biological indicators provide new sea‐level index points for the Mid‐Holocene relative highstand in eastern Northern Ireland

Boreas, EarlyView.
Bioerosional scars made by limpets (Patella) on a cliff in Co. Antrim, Northern Ireland, indicate a Mid‐Holocene RSL of +7.8±0.55 m relative to local mid‐tide level today. This is higher than previous empirical data for the region and extrapolated levels from raised shorelines in Scotland but consistent with some recent GIA models.
Michael J. Simms, Paula J. Reimer
wiley   +1 more source

Population parameters of two water scavenger beetles: Derallus angustus Sharp, 1882 and Enochrus vulgaris (Steinheil, 1869) (Coleoptera: Hydrophilidae) in permanent ponds: spatial distribution and microhabitat preference

Tropical Zoology, 2016
The spatial distribution, temporal variation, and microhabitat preference of two populations of aquatic Coleoptera were analysed in permanent ponds located in the province of Corrientes, Argentina.
Maria Constanza Gómez Lutz, Arturo Ignacio Kehr   +1 more
doaj  

Host Lifeform Shapes Phyllospheric Microbiome Assembly in Mountain Lake: Deterministic Selection and Stochastic Colonization Dynamics

Microorganisms
The phyllosphere microbiome of aquatic macrophytes constitutes an integral component of freshwater ecosystems, serving crucial functions in global biogeochemical cycling and anthropogenic pollutant remediation.
Qishan Xue, Jinxian Liu, Yirui Cao, Yuqi Wei   +3 more
doaj   +1 more source

Integrating ecological feedbacks across scales and levels of organization

Ecography, EarlyView.
In ecosystems, species interact in various ways with other species, and with their local environment. In addition, ecosystems are coupled in space by diverse types of flows. From these links connecting different ecological entities can emerge circular pathways of indirect effects: feedback loops.
Benoît Pichon, Sonia Kéfi, Nicolas Loeuille, Ismaël Lajaaiti, Isabelle Gounand   +4 more
wiley   +1 more source

Harnessing Chara globularis: Sustainable biomass harvest for water quality management and organic fertilizer production in Lake Titicaca

Manglar
Chara globularis, a submerged macroalga dominant in high-Andean lakes, generates controversial effects on freshwater ecosystems. Although its dense coverage alters water chemistry and reduces biodiversity, its abundant biomass offers an opportunity for ...
Angel Canales-Gutiérrez, Marisol Chambi-Alarcón, Gelvi Canales-Manchuria   +2 more
doaj   +1 more source

An approach to the use of macrophytes for monitoring standing waters [PDF]

, 2001
Under the EC Water Framework Directive (WFD), each Member State is required to devise a comprehensive national monitoring programme for surface waters, incorporating hydromorphological, physico-chemical and biological elements.
Palmer, Margaret A.
core  

Flooding affects fluctuating asymmetry but not growth of a riparian orbweaving spider

Ecological Entomology, EarlyView.
In a mesocosm experiment we assessed the impact of flood on aquatic insect emergence and on spider development using geometric morphometric analysis of fluctuating asymmetry. We observed 45% higher emergence in flooded mesocosm throughout the season. Spiders did not grow bigger but exhibited ~15% lower fluctuating asymmetry than in controls.
Stephane Mutel, Martin H. Entling, Ken M. Mauser, Federica Spani, Celia Thomas, Collins Ogbeide, Mirco Bundschuh, Franziska Fiolka, Franziska Middendorf, Ralf Schulz, Alessandro Manfrin   +10 more
wiley   +1 more source

Monitoring Spatial Variability and Temporal Dynamics of Phragmites Using Unmanned Aerial Vehicles

Frontiers in Plant Science, 2018
Littoral zones of freshwater lakes are exposed to environmental impacts from both terrestrial and aquatic sides, while substantial anthropogenic pressure also affects the high spatial, and temporal variability of the ecotone.
Viktor R. Tóth
doaj   +1 more source

Review of best management practices for aquatic vegetation control in stormwater ponds, wetlands, and lakes [PDF]

, 2013
Auckland Council (AC) is responsible for the development and operation of a stormwater network across the region to avert risks to citizens and the environment.
Champion, Paul, Clayton, John, de Winton, Mary, Edwards, Tracey, Hamilton, David P., Hofstra, Deborah, Jones, Hannah Frances Emily, McBride, Chris G., Rowe, David K., Wells, Rohan, Özkundakci, Deniz   +10 more
core