Results 71 to 80 of about 7,203 (252)

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

Boreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein, Thomas Kasper, Alexis Badai Samudra, Martin Theuerkauf, Markus Lothar Fischer, Neda Rahimzadeh, Maria Sekar Proborukmi, Sonja Rigterink, Agnieszka Gruszczyńska, Christian Zeeden, Simon Parfitt, David John Horne, Lucy Roberts, Dustin White, Lisa Brogmus, Hans von Suchodoletz, Tobias Lauer, Marcel Weiss, David Colin Tanner, Brigitte Urban   +19 more
wiley   +1 more source

Habitat architecture influencing microcrustaceans composition: a case study on freshwater Cladocera (Crustacea Branchiopoda)

Brazilian Journal of Biology
Environmental complexity is considered a key factor for diversity enhancement in aquatic ecosystems. Macrophyte stands are a major contributor for this complexity due to their differential architectures.
J. R. Debastiani-Júnior, L. M. A. Elmoor-Loureiro, M. G. Nogueira   +2 more
doaj   +1 more source

Sediment-macrophyte relationships in lowland English rivers: using macrophytes for biological assessment

, 2000
PhDA study of the relationship between submerged-rooted aquatic macrophytes and the chemical and physical characteristics of sediments in lowland British rivers is described.
Clarke, Stewart Jonathon
core  

Disentangling the Drivers of a Piscivorous Intra‐Annual Cohort and the Contributions of Three Cohorts to Early‐Year Class Strength in Pikeperch (Sander lucioperca)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Using pikeperch (Sander lucioperca) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength.
Million Tesfaye, Tomáš Jůza, Marek Šmejkal, Katerina Soukalová, Daniel Bartoň, Petr Blabolil, Martin Čech, Josef Hejzlar, Marie Prchalová, Milan Muška, Michal Tušer, Luboš Kočvara, Zuzana Sajdlová, Vladislav Draštík, Carlos Martinez, Karlos Ribeiro de Moraes, Milan Říha, Mojmír Vašek, Radka Symonová, Marek Brabec, Jan Kubečka, Allan T. Souza   +21 more
wiley   +1 more source

Fish and macroinvertebrates in lowland drainage canals with and without grass carp

, 2006
Diploid grass carp (Ctenopharyngodon idella L.) were introduced to a lowland Waikato drainage canal at an initial density of 40-80 kg ha -1(83-167 fish ha -1) to control aquatic macrophytes and improve water flow.
Bannon, Henry James, Hicks, Brendan J., Wells, R.D.S.   +2 more
core  

Low breeding propensity in a declining Arctic‐breeding swan revealed by telemetry data

Ibis, EarlyView.
Many migratory bird populations are declining in the face of habitat degradation and climate change, making it important to identify which stages of their annual cycle are most affected in order to guide conservation measures. The Bewick's Swan Cygnus columbianus bewickii, an Arctic‐breeding waterfowl species, has suffered a dramatic population decline
Tohar Tal, Bart A. Nolet, Tom S.L. Versluijs, Judy Z. Shamoun‐Baranes, Götz Eichhorn, Sabine Urban, Hans Linssen   +6 more
wiley   +1 more source

Can sacrificial feeding areas protect aquatic plants from herbivore grazing? Using behavioural ecology to inform wildlife management [PDF]

, 2014
Effective wildlife management is needed for conservation, economic and human well-being objectives. However, traditional population control methods are frequently ineffective, unpopular with stakeholders, may affect non-target species, and can be both ...
Richard A. Stillman, O'Hare, M.T., Wood Kevin A., Stillman Richard A., Matthew T. O’Hare, O'Hare, Matthew T., Wood, Kevin A., Kevin A. Wood, Daunt Francis, Richard A Stillman, Matthew T O'Hare, O’Hare Matthew T., Stillman, Richard A., Daunt, Francis, Francis Daunt, Kevin A Wood, Wood, K.A.   +16 more
core   +1 more source

Effects of a nonnative species of Poaceae on aquatic macrophyte community composition: A comparison with a native species

, 2015
Invader-dominated systems of exotic species frequently damage native communities, mainly because there is a shift in the competition-facilitation balance, and competition intensifies in communities structured by facilitation.
Toledo, Douglas, De Amorim, Sara Regina [UNESP], Monteiro Camargo, Antonio Fernando [UNESP], Umetsu, Cristiane Akemi [UNESP]   +3 more
core   +1 more source

Responses of aquatic macrophyte cover and productivity to flooding variability on the Amazon floodplain.

, 2013
Macrophyte net primary productivity (NPP) is a significant but understudied component of the carbon budget in large Amazonian floodplains. Annual NPP is determined by the interaction between stem elongation (vertical growth) and plant cover changes ...
Novo, Evlyn M L M, Melack, John M, Silva, Thiago S F, John M. Melack, Evlyn M. L. M. Novo, Thiago S. F. Silva   +5 more
core   +1 more source

Points vs. passes: A comparison between electric fishing techniques for sampling fish populations in upland headwater streams

Journal of Fish Biology, EarlyView.
Abstract Point‐abundance sampling by electric fishing (PASE) was compared with single‐pass (DF1) and triple‐pass depletion sampling (DF3) electric fishing on the same reaches of four headwater streams sampled over multiple years in the Ribble catchment, UK. Juvenile salmonids, mostly brown trout Salmo trutta with some Atlantic salmon S.
Reagan H. Pearce, Martin R. Perrow, Mark L. Tomlinson, Kirsty A. Turner   +3 more
wiley   +1 more source