Results 111 to 120 of about 6,579,623 (306)

Human harvest, climate change and their synergistic effects drove the Chinese Crested Tern to the brink of extinction

open access: yesGlobal Ecology and Conservation, 2015
Synergistic effect refers to simultaneous actions of separate factors which have a greater total effect than the sum of the individual factor effects. However, there has been a limited knowledge on how synergistic effects occur and individual roles of ...
Shuihua Chen   +7 more
doaj   +1 more source

Village History 1 [PDF]

open access: yes, 2010
Zhangs skyong tells village history concerning a demon which almost destroyed the village.The fifty one audio and nine video files in this collection include: villages’ life stories, circle-dancing songs and performance, local history, folk tales, and ...
G.yu lha
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Local biodiversity is higher inside than outside terrestrial protected areas worldwide

open access: yesNature Communications, 2016
Protected areas are thought essential for biodiversity conservation, but few studies confirm that protection benefits species. Here, Gray and Hill et al. analyse a global, taxonomically broad database to show that local species richness and abundance are
Claudia L. Gray   +9 more
doaj   +1 more source

From organism to population: the role of life-history theory [PDF]

open access: yes, 1994
The role of life-history theory in population and evolutionary analyses is outlined. In both cases general life histories can be analysed, but simpler life histories need fewer parameters for their description.
Sibly, R.M.
core  

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Two new species of Pelagodes Holloway, 1996 from Eastern New Guinea (Lepidoptera: Geometridae, Geometrinae, Thalassodini)

open access: yesSHILAP
Two new species of the Indo-Australian genus Pelagodes Holloway, 1996 are described as new. Pelagodes sebastiani Lindt, Lennuk & Viidalepp, sp. nov. resembles Pelagodes rana Holloway, 1996 in the shape of its frog-leglike appendages on the male eighth ...
Aare Lindt   +2 more
doaj   +1 more source

Anchonini in Africa: New Species and Genus Confirming a Transatlantic Distribution (Coleoptera: Curculionidae: Molytinae)

open access: yesDiversity, 2018
The Anchonini known from Africa are reviewed. The monotypic genus Aethiopacorep is redescribed. The new West African genus Titilayo gen. nov. is described, with seven new species: four from São Tomé, T. perrinae sp. nov., T. saotomense sp.
Joana P. Cristóvão   +1 more
doaj   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Two new species of Rhodochlora Warren, 1894 of the Neotropics (Lepidoptera: Geometridae, Geometrinae)

open access: yesSHILAP
Rhodochlora Warren, 1894 is a Neotropical genus of the largest and most attractive species of their kind. This article aims to characterize two additional species.
Jaan Viidalepp   +2 more
doaj   +1 more source

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