Results 21 to 30 of about 8,857,554 (290)

The appearance, motion, and disappearance of three-dimensional magnetic null points [PDF]

, 2015
N.A.M. acknowledges support from NASA grants NNX11AB61G, NNX12AB25G, and NNX15AF43G; NASA contract NNM07AB07C; and NSF SHINE grants AGS-1156076 and AGS-1358342 to SAO. C.E.P.
Parnell, Clare Elizabeth, Haynes, Andrew Lewis, A. Murphy, Nicholas, Nicholas A. Murphy, Clare E. Parnell, Andrew L. Haynes, Parnell, Clare Elizabeth; id_orcid   +6 more
core   +1 more source

Co-occurrence patterns of fish communities in littorals of three floodplain lakes of the Orinoco River, Venezuela

Journal of Threatened Taxa, 2017
The co-occurrence patterns of fish communities in the littorals of three lagoons of the Orinoco River floodplain in Venezuela were studied during four hydrological phases: low, rising, high and falling waters, from 2008–2009, using null models.
Gabriela E. Echevarría, Nirson González   +1 more
doaj   +1 more source

Null-Fehler-Produktion

, 2022
Die Null-Fehler-Produktion zählt zu den wichtigsten Zielen eines Unternehmens. Sie beeinflusst maßgeblich die Wertschöpfung und ist damit Stellgröße für eine nachhaltige Unternehmensstrategie. Vor allem für Branchen mit stark individualisierten Produkten
Schloske, Alexander
core   +4 more sources

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

Journal 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, Simona Ceschin, Alessandro Manfrin, Massimiliano Scalici   +3 more
doaj   +1 more source

Hyper abundant mesopredators and bird extinction in an Atlantic forest island

Zoologia (Curitiba), 2009
Islands can serve as model systems for understanding how biological invasions affect native species. Here we examine the negative effects of mesopredator mammals on bird richness at Anchieta Island, an 826 ha offshore island in the coast of Brazil ...
Mauro Galetti, Ricardo S. Bovendorp, Rodrigo F. Fadini, Carlos O. A. Gussoni, Marcos Rodrigues, Ariane D. Alvarez, Paulo R. Guimarães Jr, Kaiser Alves   +7 more
doaj   +1 more source

Living in a Thermally Diverse Environment: Field Body Temperatures and Thermoregulation in Hermann’s Tortoise, Testudo hermanni, in Montenegro

Conservation, 2023
Reptiles live in a range of different habitats from tropical forests to temperate zones where the climate may change on seasonal or a daily basis. The thermal environment is a major determinant of how efficiently they can achieve optimum or preferred ...
Ana Vujović, Vladimir Pešić, Roger Meek   +2 more
doaj   +1 more source

Community structure of invertebrate fauna in Central Chilean Rivers

Acta Limnologica Brasiliensia, 2019
Aim River systems of Central Chile are short, steep and fast flowing. They are characterized by discharge regimes dominated by rainfall and snowmelt. Invertebrate fauna is highly endemic.
Patricio De los Ríos, Gustavo Díaz, Jorge Gonzalez, Konrad Górski, Evelyn Habit   +4 more
doaj   +1 more source

Size overlap in intertidal decapod communities along the chilean coast

Scientia Marina, 2020
The intertidal crustaceans on the Chilean coast are characterized by high diversity and niche specialization. The present study applied a size overlap null model for intertidal decapod communities at four different sites on the Chilean coast. The results
Patricio De los Ríos-Escalante, Guillermo Figueroa-Muñoz, Marco A. Retamal, Rolando Vega-Aguayo, Carlos Esse   +4 more
doaj   +1 more source

Functional volumes, niche packing and species richness: biogeographic legacies in the Congo Basin [PDF]

Royal Society Open Science, 2020
Understanding the determinants of species coexistence in complex and species-rich communities is a fundamental goal of ecology. Patterns of species coexistence depend on how biotic interactions and environmental filtering act over ecological and ...
Frederik Van de Perre, Michael R. Willig, Steven J. Presley, Itoka Jean-Claude Mukinzi, Mbalitini Sylvestre Gambalemoke, Herwig Leirs, Erik Verheyen   +6 more
doaj   +1 more source

Patterns in diurnal co-occurrence in an assemblage of hoverflies (Diptera: Syrphidae)

European Journal of Entomology, 2013
In this study we analyzed the inter-specific relationships in assemblages of syrphids at a site in northern Italy in order to determine whether there are patterns in diurnal co-occurrence. We adopted a null model approach and calculated two co-occurrence
Manuela D'AMEN, Daniele BIRTELE, Livia ZAPPONI, Sönke HARDERSEN   +3 more
doaj   +1 more source