Results 1 to 10 of about 1,062,757 (298)

Niche differentiation in rainforest ant communities across three continents

open access: yesEcology and Evolution, 2019
A central prediction of niche theory is that biotic communities are structured by niche differentiation arising from competition. To date, there have been numerous studies of niche differentiation in local ant communities, but little attention has been ...
Mickal Houadria   +2 more
exaly   +2 more sources

Wnt signaling-mediated redox regulation maintains the germ line stem cell differentiation niche [PDF]

open access: yeseLife, 2015
Adult stem cells continuously undergo self-renewal and generate differentiated cells. In the Drosophila ovary, two separate niches control germ line stem cell (GSC) self-renewal and differentiation processes.
Su Wang   +13 more
doaj   +3 more sources

Ecological niche differentiation in Chiroxiphia and Antilophia manakins (Aves: Pipridae).

open access: yesPLoS ONE, 2021
Species distribution models are useful for identifying the ecological characteristics that may limit a species' geographic range and for inferring patterns of speciation.
Mariana Villegas   +3 more
doaj   +2 more sources

The Satellite Cell Niche Regulates the Balance between Myoblast Differentiation and Self-Renewal via p53

open access: yesStem Cell Reports, 2018
Summary: Satellite cells are adult muscle stem cells residing in a specialized niche that regulates their homeostasis. How niche-generated signals integrate to regulate gene expression in satellite cell-derived myoblasts is poorly understood.
Philipp Antczak   +2 more
exaly   +3 more sources

Multi‐dimensional niche differentiation of two sympatric breeding secondary cave‐nesting birds in Northeast China using DNA metabarcoding [PDF]

open access: yesEcology and Evolution
Niche theory predicts that ecologically similar sympatric species should show differentiation in at least one of the main niche dimensions (time, space, and/or food).
Li Zhang   +5 more
doaj   +2 more sources

Niche Differentiation of Three Terrestrial Isopod Species Based on DNA Metabarcoding [PDF]

open access: yesEcology and Evolution
Species coexistence is a hot topic in ecology, with niche differentiation playing a key role in reducing interspecific competition. This study investigates the dietary habits and niche differentiation of three terrestrial isopod species (Armadillidium ...
Jiachen Wang   +4 more
doaj   +2 more sources

Differentiation capacities of PS-clusters, adult pituitary stem/progenitor cell clusters located in the parenchymal-niche, of the rat anterior lobe. [PDF]

open access: yesPLoS ONE, 2018
Pituitary endocrine cells are supplied by Sox2-expressing stem/progenitor cells in the anterior lobe of the adult pituitary. In relation to their microenvironment ("niche"), SOX2-positive cells exist in two types of niches; the marginal cell layer-niche ...
Saishu Yoshida   +8 more
doaj   +1 more source

Diet composition, niche overlap and partitioning of five sympatric rhinolophid bats in Southwestern China during summer

open access: yesFrontiers in Ecology and Evolution, 2023
Understanding trophic niche differentiation is critical for exploring interspecific competition and stable coexistence among morphologically similar sympatric species.
Wentao Dai   +13 more
doaj   +1 more source

Evaluation ecological niche between Platyceps rhodorachis and P. karelini (Serpentes: Colubridae) in Iran [PDF]

open access: yesIranian Journal of Animal Biosystematics, 2021
Platyceps rhodorachis (JAN, 1863) and P. karelini (BRANDT, 1838) are both members of the P. rhodorachis complex species, which is widely distributed in Iran and includes many local populations in the country. These two species are molecularly and to some
Seyed Hassan Moradi   +3 more
doaj   +1 more source

Constitutive STAT5 activation regulates Paneth and Paneth-like cells to control Clostridium difficile colitis

open access: yesLife Science Alliance, 2019
STAT5 controls the intestinal epithelial stem cell niche by regulating Wnt/β-catenin signaling, and lack of active pYSTAT5 induces Clostridium difficile infection. STAT5 may be a transcription factor that restricts niche cell differentiation. Clostridium
Ruixue Liu   +18 more
doaj   +1 more source

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