Results 41 to 50 of about 44,631 (306)

Intracellular Structures of Prokaryotes: Inclusions, Compartments and Assemblages☆

open access: yes, 2009
Discrete structures found within the cytoplasm of the prokaryotic cell (in one case in the periplasm) represent certain aspects of an organism’s metabolic capability. The structures, varying in size, shape, content, and architecture, are either naked or surrounded with a barrier, for example, a protein shell or coat, a lipid monolayer, a protein-lipid ...
Shively, J. M.   +13 more
openaire   +5 more sources

Change and recovery of coastal mesozooplankton community structure during the Deepwater Horizon oil spill

open access: yesEnvironmental Research Letters, 2014
The response of mesozooplankton community structure to the Deepwater Horizon oil spill in the northern Gulf of Mexico was investigated using data from a long-term plankton survey off the coast of Alabama (USA).
L Carassou, F J Hernandez, W M Graham
doaj   +1 more source

Environmental structure affects taxonomic diversity but not functional structure of understory birds in the southwestern Brazilian Amazon [PDF]

open access: yesActa Amazonica, 2019
Changes in environmental characteristics can affect habitat use by birds, impacting the number of individuals, number of species, and changing species composition and functional structure of assemblages.
Jocieli de OLIVEIRA   +6 more
doaj   +1 more source

Sampling a Littoral Fish Assemblage: Comparison of Small-Mesh Fyke Netting and Boat Electrofishing

open access: yes, 2007
We compared small-mesh (4-mm) fyke netting and boat electrofishing for sampling a littoral fish assemblage in Muskegon Lake, Michigan. We hypothesized that fyke netting selects for small-bodied fishes and electrofishing selects for large-bodied fishes ...
Uzarski, Donald G.   +8 more
core   +1 more source

Comparing lacustrine environments: the importance of the kind of habitat on the structure of fishes

open access: yesActa Limnologica Brasiliensia, 2018
Aim Fish diversity in two lentic environments: a lake connected (Barbosa lake) to a river and an artificial reservoir (Ninfeias reservoir) were determined in the dry and rainy periods in 2015. We expected to find more diversity in the connected lake and
Reinaldo José de Castro   +3 more
doaj   +1 more source

Community Dynamics of Fish Assemblages on Mid-Shelf and Outer-Shelf Coral Reefs in the Northwestern Gulf of Mexico

open access: yesFrontiers in Marine Science, 2020
Offshore coral reefs in the Gulf of Mexico (GOM) are unique model systems for examining the mechanisms structuring reef fish communities due to their substantial geographic isolation, and the presence of replicate experimental units of both low (mid ...
Lynne S. Wetmore   +5 more
doaj   +1 more source

Ground beetle assemblages (Coleoptera, Carabidae) of the Krasiborska Kępa reserve

open access: yesActa Biologica, 2016
The study was carried out from the beginning of June to the end of July 2005 in the Krasiborska Kępa reserve (UTM VV56; 53.848°N, 14.370°E). Three research plots were established, representing various types of use of reedy areas: an unused reedy ...
Oleg Aleksandrowicz   +2 more
doaj   +1 more source

Apparent competition structures ecological assemblages

open access: yesNature, 1997
Competition is a major force in structuring ecological communities1. It acts directly2 or indirectly, in which case it may be mediated by shared natural enemies and is known as ‘apparent competition’3,4,5,6. The effects of apparent competition on species coexistence are well known theoretically7,8 but have not previously been demonstrated empirically ...
Bonsall, M, Hassell, M
openaire   +2 more sources

Temporal and spatial changes in macrozoobenthos diversity in Poyang Lake Basin, China

open access: yesEcology and Evolution, 2019
Poyang Lake plays a significant role in maintaining and replenishing the macrozoobenthos biodiversity in the middle Yangtze River. However, due to human activities and natural factors, the habitat of Poyang Lake has been seriously degraded, resulting in ...
Ke Li   +6 more
doaj   +1 more source

Co-occurrence between macrophytes and macroinvertebrates: towards a new approach for the running waters quality evaluation?

open access: yesJournal of Limnology, 2014
Several studies on concordance between macrophyte and macroinvertebrate communities were carried out for decades while any investigation on co-occurrence of single pair of taxa of these two groups was never addressed.
Lorenzo Traversetti   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy