Results 251 to 260 of about 65,254 (294)

Shedding light on the parasite communities and diet of the deep‐sea shark Deania profundorum (Smith & Radcliffe, 1912) (Squaliform: Centrophoridae) from the Avilés Canyon (southern Bay of Biscay)

Journal of Fish Biology, EarlyView.
Abstract Deep‐sea elasmobranchs are less resilient to the increasing scale of anthropogenic impacts such as fisheries, owing to their life‐history traits. The necessity for proper management measures is hampered by the scant knowledge on these taxa and their biology. Here we provide the first comprehensive insight into the parasite infracommunities and
Wolf Isbert, Cristina Rodríguez‐Cabello, Francisco E. Montero, Maite Carrassón, Inmaculada Frutos, Ana Pérez‐del‐Olmo   +5 more
wiley   +1 more source

Amazonian drought of 2023: Environmental conditions relevant to fishes

Journal of Fish Biology, EarlyView.
Abstract This paper provides a platform for the following studies within this Special Issue. ‘Ecophysiology of fishes in the two great tributaries of the Amazon in the Anthropocene’. It documents the water quality conditions and accompanying zooplankton community structure and biomass relative to fish health in the Rio Negro and Rio Solimões during the
Ora E. Johannsson, Thiago L. Nascimento, Helen Agasild, Priit Zingel, Rafael M. Duarte, Gudrun de Boeck, Anne Cremazy, Jhonatan Mota da Silva, Carolyn Morris, Chris M. Wood, Adalberto L. Val   +10 more
wiley   +1 more source

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Stromal STAT5-Mediated Trophic Activity Regulates Hematopoietic Niche Factors

Stem Cells, 2023
Abstract Signal transducer and activator of transcription 5 (STAT5a and STAT5b) are intrinsically critical for normal hematopoiesis but are also expressed in stromal cells. Here, STAT5ab knockout (KO) was generated with a variety of bone marrow hematopoietic and stromal Cre transgenic mouse strains.
Zhengqi Wang, Grace Emmel, Hong Seo Lim, Wandi Zhu, Astrid Kosters, Eliver E B Ghosn, Peng Qiu, Kevin D Bunting   +7 more
openaire   +2 more sources

Isotopic niche mirrors trophic niche in a vertebrate island invader

Oecologia, 2012
Caution for the indiscriminate conversion of the isotopic niche into ecologic niche was recently advised. We tested the utility of the isotopic niche to answer ecological questions on oceanic islands. We compared the isotopic niches of black rats (Rattus rattus) on two islands in the Gulf of California, Mexico: Farrallón de San Ignacio (FSI) and San ...
Marlenne A M, Rodríguez, L M, Gerardo Herrera   +1 more
openaire   +2 more sources

Trophic niche and habitat shifts of sympatric Gerreidae

Journal of Fish Biology, 2014
The diet and mouth growth rates of three Gerreidae species (Eugerres brasilianus, Eucinostomus melanopterusandDiapterus rhombeus) were assessed at different ontogenetic phases (juveniles, sub‐adults and adults) in order to detect allometric growth, and whether they are related to habitat and seasonal changes in the Goiana Estuary, north‐east Brazil ...
J A A, Ramos, M, Barletta, D V, Dantas, A R A, Lima, M F, Costa   +4 more
openaire   +2 more sources

Trophic Niche Overlap Of Lake Superior Nearshore Fishes

2023
Presentation for Great Lakes Fishery Commission Upper Lakes Committee on March 21-24, 2023 in Sault Sainte Marie, Ontario, Canada Science Inventory, CCTE products: https://cfpub.epa.gov/si/si_public_search_results.cfm?advSearch=true&showCriteria=2&keyword=CCTE&TIMSType=&TIMSSubTypeID=&epaNumber=&ombCat=Any& ...
Hanson, Jessie, Hoffman, Joel, Goldsworthy, Cory, Peterson, Nicholas, R. Hrabik, Thomas, Brady, Valerie, Lepak, Ryan, Gordon, Morgann   +7 more
openaire   +1 more source

Trophic niche separation in sympatric rocky shore crabs

Journal of the Marine Biological Association of the United Kingdom, 2019
AbstractWhere two species occupy the same habitat and similar niches, competition is likely to drive small-scale spatial niche separation or resource partitioning that may not be immediately apparent. A stable isotope approach was used to investigate potential trophic niche separation between co-existing rocky shore crabs in the North-West (NW) Arabian
Zainab Al-Wazzan, Luis Giménez, Manaf Behbehani, Lewis Le Vay   +3 more
openaire   +1 more source

Food-Niche and Trophic Relationships among European Owls

Ornis Scandinavica, 1976
The study of three western European owl communities revealed the existence of geographical patterns concerning food-niche characteristics of the individual owl species and, consequently, of community composition and structure. Middle and Northern European communities show a close packing of species along the food dimension of the niche; the ways in ...
Carlos M. Herrera, Fernando Hiraldo
openaire   +1 more source

Individual trophic niche specialization in American beaver (Castor canadensis)

Food Webs, 2022
The American beaver (Castor canadensis) has been described as a choosy generalist at the species/population scale, yet observational studies have shown little variation in diet among individuals. We compared isotopic values of δ13C or δ15N taken from hair of 32 beaver, representing seven colonies in northern Alabama, USA to determine 1) if colonies ...
Taylor, Jimmy, Francis, Robert, Rush, Scott, Strickland, Bronson, Wang, Guiming   +4 more
openaire   +1 more source

Trophic Niche of Nearctic Short-Eared Owls

1993
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source