Results 31 to 40 of about 29,330 (259)

Animal Forest Mortality: Following the Consequences of a Gorgonian Coral Loss on a Mediterranean Coralligenous Assemblage

open access: yesDiversity, 2021
In this work, the consequences of a local gorgonian coral mortality on the whole coralligenous assemblage were studied. A Before/After-Control/Impact sampling design was used: the structure of the coralligenous assemblage was compared before and after ...
Luigi Piazzi   +8 more
doaj   +1 more source

Variation in patterns of fish assemblage and their environmental correlates in a tropical river basin from the Gulf of Mexico slope [PDF]

open access: yesNeotropical Ichthyology, 2023
Understanding patterns of freshwater fish assemblage structure is key to protect them from ongoing human-induced threats to aquatic biodiversity. Yet, studies on associations between fish assemblages and habitat are lacking from many areas of high ...
Santiago Larre-Campuzano   +4 more
doaj   +1 more source

Spatial Diversification of Bee (Hymenoptera: Apoidea: Apiformes) Assemblages in Forest Communities of the Suchedniów-Oblęgorek Landscape Park

open access: yesJournal of Apicultural Science, 2012
Celem badań prowadzonych w latach 2004-2005, od kwietnia do października było scharakteryzowanie zgrupowań pszczół (Apiformes) w zróżnicowanych fitosocjologicznie zbiorowiskach leśnych Suchedniowsko-Oblęgorskiego Parku Krajobrazowego.
Bąk-Badowska Jolanta
doaj   +1 more source

Role of Phylogenetic Structure in the Dynamics of Coastal Viral Assemblages [PDF]

open access: yesApplied and Environmental Microbiology, 2021
Viruses are major agents of microbial mortality in marine systems, yet little is known about changes in the composition of viral assemblages in relation to those of the microbial communities that they infect. Here, we sampled coastal seawater every 2 weeks for 1 year and used high-throughput sequencing of marker genes to follow changes in the ...
Julia A. Gustavsen, Curtis A. Suttle
openaire   +2 more sources

Interspecific conflict structures urban avian assemblages [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Land cover change, of which urbanization is a major driver, remains the greatest threat to terrestrial biodiversity. More than half of all people now live in cities spread across 3% of the global terrestrial surface, and this population is predicted to rise to 68% by 2050 (1).
openaire   +2 more sources

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

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   +6 more sources

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

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

Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel   +15 more
wiley   +1 more source

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