Results 51 to 60 of about 2,931,284 (276)

An assessment of the niche centroid hypothesis: Pteropus lylei (Chiroptera)

open access: yesEcosphere, 2020
Recent ecological theories propose that species reach their highest abundance and genetic diversity in the center of their ecological niche and decline toward the edges.
Aingorn Chaiyes   +8 more
doaj   +1 more source

The abundance of lensing protoclusters

open access: yes, 2008
Weak gravitational lensing provides a potentially powerful method for the detection of clusters. In addition to cluster candidates, a large number of objects with possibly no optical or X-ray component have been detected in shear-selected samples.
Anson D'Aloisio   +54 more
core   +1 more source

Coronal versus photospheric abundances of stars with different activity levels [PDF]

open access: yes, 2003
We report a detailed analysis of the coronal abundance of 4 stars with varying levels of activity and with accurately known photospheric abundances.
Allende Prieto   +56 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Spatial Relation of Bumblebees (Hymenoptera-Apidae) with Host-Plant and their Conservation Issues: An Outlook from Urban Ecosystem of Kathmandu Valley, Nepal

open access: yesEuropean Journal of Ecology, 2019
Ecology and conservation status of bumblebee species remains poorly understood, especially in rapidly degrading urban ecosystems, which is important considering the role of bumblebees in the pollinations. We collected more than 200 bumblebee (Bombus spp.)
Daya Ram Bhusal   +4 more
doaj   +1 more source

Diversity and Relative Abundance of Ichthyofauna in Manasbal Lake of the Kashmir Himalayas, India

open access: yesCroatian Journal of Fisheries, 2022
Diversity, abundance and distribution pattern of the fish fauna are important aspects that need to be considered in order to frame the conservation and management strategies in any water body.
Andrabi Saima   +3 more
doaj   +1 more source

Abundance of small individuals influences the effectiveness of processing techniques for deep-sea nematodes [PDF]

open access: yes, 2010
Nematodes are the most abundant metazoans of deep-sea benthic communities, but knowledge of their distribution is limited relative to larger organisms.
Berkenbusch, K.   +4 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Horizontal distribution of invertebrate larvae around the oceanic island of Gran Canaria: the effect of mesoscale variability

open access: yesScientia Marina, 2009
In October 1991, the horizontal distribution of invertebrate larvae was studied in the waters surrounding the island of Gran Canaria (Canary Islands).
José María Landeira   +3 more
doaj   +1 more source

Abundance and distribution of California sea lions (Zalophus californianus) in central and northern California during 1998 and summer 1999 [PDF]

open access: yes, 2005
The abundance and distribution of California sea lions (Zalophus californianus) in central and northern California was studied to allow future evaluation of their impact on salmonids, the ecosystem, and f isheries.
Forney, Karin A., Lowry, Mark S.
core  

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