Results 51 to 60 of about 483,947 (304)

The diverse nature of island isolation and its effect on land bridge insular faunas [PDF]

, 2020
Aim: Isolation is a key factor in island biology. It is usually defined as the distance to the geographically nearest mainland, but many other definitions exist.
Anastasakis G., Anastasiou I., Dermitzakis D. M., Heiberger R. M., Hellenic Statistical Authority, Itescu Y., Itescu Y., Itescu Y., Itescu Y., Laliberté E., Lattimore R., Lomolino M. V., MacArthur R. H., Sfenthourakis S., Van Andel T. H., Whittaker R. J., Willemse L.   +16 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Mapping the species richness and composition of tropical forests from remotely sensed data with neural networks [PDF]

, 2006
The understanding and management of biodiversity is often limited by a lack of data. Remote sensing has considerable potential as a source of data on biodiversity at spatial and temporal scales appropriate for biodiversity management.
Cannon, Chapin, Chavez, Ekstrand, Foody, Foody, Giles M. Foody, Giraudel, Gould, Griffiths, Hampicke, Innes, Kerr, Loreau, Ludwig, Lugo, Margules, Mark E.J. Cutler, Mather, Nagendra, Oindo, Purvis, Richards   +22 more
core   +2 more sources

Latitudinal gradient in species richness [PDF]

Current Biology, 2007
What is the gradient? Amongst the earliest remarked, and best documented, of broad-scale spatial patterns of life on Earth is a trend for more species to be found towards lower latitudes. The latitudinal gradient in species richness is such that most extant eukaryote, perhaps also prokaryote, species are found in the tropics.
openaire   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Environmental heterogeneity as a determinant of bee diversity patterns in the Atlantic Forest [PDF]

Frontiers of Biogeography
The Atlantic Forest encompasses a wide range of environmental and geographical gradients with high endemism and species diversity among several taxonomic groups, including bees.
Anderson Igomar Antonio, Admir Cesar de Oliveira Junior, Fabricio Villalobos, Santiago José Elías Velazco   +3 more
doaj   +3 more sources

Impact of climate change on plant species richness across drylands in China: From past to present and into the future

Ecological Indicators, 2021
It is commonly believed that climate plays an important role in shaping the patterns of plant species richness. However, it remains unclear how climate may affect plant richness across large spatial scales and also over long-terms, for example across ...
Ying Sun, Yuan Sun, Shuran Yao, Muhammad Adnan Akram, Weigang Hu, Longwei Dong, Hailing Li, Maohong Wei, Haiyang Gong, Shubin Xie, Muhammad Aqeel, Jinzhi Ran, Abraham Allan Degen, Qinfeng Guo, Jianming Deng   +14 more
doaj   +1 more source

Rodent species richness is correlated with carnivore species richness in Spain

Revue d'Écologie (La Terre et La Vie), 2010
Résumé. — La richesse spécifique des rongeurs et celle des carnivores sont corrélées en Espagne. — La diversité des niches écologiques favorise la coexistence des espèces, accroissant la richesse spécifique. La richesse spécifique des carnivores devrait donc croître avec celle de leurs proies, en raison des niches trophiques ainsi ouvertes.
Moreno-Rueda, Gregorio, Pizarro, Manuel
openaire   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Species Richness and Habitat Preferences of Herpetofauna in Gunung Halimun National Park, West Java*[kekayaan Jenis Dan Preferensi Habitat Herpetofauna Di Taman Nasional Gunung Halimun] [PDF]

, 2005
Studi kekayaan jenis herpetofauna (amfibia dan reptilia) telah dilakukan di dalam dan sekitar Taman Nasional Gunung Halimun pada bulan September 2001-September 2002.Metode yang digunakan untuk mengetahui kekayaan jenis adalah dengan pengamatan langsung ...
Kurniati, H. (Hellen)
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