Results 41 to 50 of about 190,405 (306)

Spatial and ontogenetic variation in isotopic niche among recovering fish communities revealed by Bayesian modeling.

open access: yesPLoS ONE, 2019
Exploitation and changing ocean conditions have resulted in altered species interactions and varied population dynamics within marine fish communities off northeast Newfoundland and southern Labrador, Canada.
Kyle J Krumsick, Jonathan A D Fisher
doaj   +1 more source

A niche model to predict Microcystis bloom decline in Chaohu Lake, China [PDF]

open access: yes, 2012
Cyanobacterial blooms occur frequently in lakes due to eutrophication. Although a number of models have been proposed to forecast algal blooms, a good and applicable method is still lacking.
Li Dunhai   +3 more
core   +1 more source

Niche shifts after long-distance dispersal events in bipolar sedges (Carex, Cyperaceae) [PDF]

open access: yes, 2017
PREMISE OF THE STUDY: Bipolar species represent the greatest biogeographical disjunction on Earth, raising many questions about the colonization and adaptive processes behind such striking distribution.
Escudero Lirio, Marcial   +3 more
core   +1 more source

The α-minimum convex polygon as a relevant tool for isotopic niche statistics

open access: yesEcological Indicators, 2021
Ecological (isotopic) niche refers to a surface in a two-dimensional space, where the axes correspond to environmental variables that reflect values of stable isotopes incorporated in an animal's tissues.
Pauline Fey   +2 more
doaj   +1 more source

Niche of woody plant populations in Picea purpurea community in the upper Taohe River

open access: yesEcological Indicators
The niche of plant populations is affected by the environment, species characteristics and anthropogenic disturbance. Picea purpurea, as a major constructive species in the northeastern Qinghai-Tibetan Plateau, had been severely damaged.
Yang Zhao   +5 more
doaj   +1 more source

Anthropogenic fire patterns affect niche breadth and niche overlap in sympatric songbird species

open access: yesScience of The Total Environment, 2022
The severity of wildfires increases globally, and return intervals decrease. Fires can benefit biodiversity, as post-burn early successional stages provide diverse habitats and niches for many species. How fire disturbance affects niche use and niche overlap of species is poorly understood so far. We studied the effect of anthropogenic fire on breeding
Heim, Wieland   +5 more
openaire   +3 more sources

The relationship between niche breadth and phylogenetic characteristics of eight species of rhubarb on the Qinghai‐Tibet Plateau, Asia

open access: yesEcology and Evolution
The relationship between spatial distribution and phylogeny has been widely debated in recent decades. To understand biogeographic and evolutionary history relationships and to explore the interspecific similarities and phylogenetic correlations of niche
Kaiyang Chen   +3 more
doaj   +1 more source

Niche Overlap as a Function of Environmental Variability [PDF]

open access: yesProceedings of the National Academy of Sciences, 1972
The relationship between environmental variability and niche overlap is studied for a class of model biological communities in which several species compete on a one-dimensional continuum of resources, e.g., food size. In a strictly unvarying (deterministic) environment, there is in general no limit to the degree of overlap, short of complete ...
R M, May, R H, MacArthur
openaire   +2 more sources

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

Cohabitation Study of Tricolour Langur (Presbytis chrysomelas ssp. cruciger) and Proboscis Monkey (Nasalis larvatus) in Bukit Semujan Danau Sentarum National Park

open access: yesJurnal Ilmu Kehutanan, 2023
The  tricolour langur and proboscis monkey in Bukit Semujan cohabited and utilized the same resources. Cohabitation, mainly due to resource constraints, needed substantial attention to ensure the survival of these primates. This research aimed to map the
Nyoto Santoso   +3 more
doaj   +1 more source

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