Results 51 to 60 of about 21,213 (294)
Niche differentiation between sympatric alien aquatic crustaceans: An isotopic evidence [PDF]
Basic and Applied Ecology, 2014 Abstract Among the mechanisms that allow competing species to coexist are resource partitioning and dietary segregation. The current study uses multiple stable isotopes, carbon (δ13C), nitrogen (δ15N) and sulphur (δ34S), to test the hypothesis that dietary segregation in cohabiting invasive mysids (Limnomysis benedeni and Katamysis warpachowskyi) and
Rothhaupt, Karl-Otto +2 more
openaire +2 more sources
Isotopic niche variation in a higher trophic level ectotherm: highlighting the role of succulent plants in desert food webs. [PDF]
PLoS ONE, 2015 Stable isotope analysis of animal tissues allows description of isotopic niches, whose axes in an n-dimensional space are the isotopic ratios, compared to a standard, of different isotope systems (e.g. δ(13)C, δ(15)N).
Miguel Delibes +5 more
doaj +1 more source
Isotopic niche is not equal to trophic niche
Ecology Letters, 2019 AbstractThe work of Sheppard et al. (Ecol. Lett., 21, 2018, 1395) relies on the strong assumption that isotopic niche is equal to trophic niche. Here I raise three main concerns showing that classic hypotheses built upon trophic niche cannot be directly interpreted in isotopic space.
openaire +5 more sources
Can ancestry and morphology be used as surrogates for species niche relationships?
Ecology and Evolution, 2020 Species interactions are difficult to quantify, and, consequently, many studies have used species traits and phylogeny as proxies under an assumption of niche conservatism (i.e., closely related and morphologically similar species should have similar ...
Friedrich W. Keppeler +1 more
doaj +1 more source
Niche partitioning amongst northwestern Mediterranean cetaceans using stable isotopes
Progress in Oceanography, 2021 Ten species of cetaceans coexist in the Mediterranean Sea, one of the richest seas in biodiversity and endemisms worldwide. The conservation status of Mediterranean cetaceans has been a concern for many years, particularly due to increasing anthropogenic threats such as global warming and overfishing. We established the stable isotopic niches of carbon,
Borrell Thió, Assumpció +6 more
openaire +2 more sources
Diet overlap and spatial segregation between two neotropical marsupials revealed by multiple analytical approaches. [PDF]
PLoS ONE, 2017 Species co-existence depends on how organisms utilize their environment and resources. When two sympatric species are similar in some ecological requirements, their coexistence may arise from differences in resource use over time and/or space ...
Vanessa Villanova Kuhnen +5 more
doaj +1 more source
Biology, 2023 Intra-species variability in isotopic niches, specifically isotopic total niche width (ITNW), isotopic individual niche width (IINW), and isotopic individual specialization (IIS), was studied using an innovative approach without sacrificing the ...
Lukáš Vejřík +10 more
doaj +1 more source
BMC Ecology and Evolution, 2023 Background Functional diversity is vital for forest ecosystem resilience in times of climate-induced forest diebacks. Admixing drought resistant non-native Douglas fir, as a partial replacement of climate-sensitive Norway spruce, to native beech forests ...
Benjamin Wildermuth +6 more
doaj +1 more source
Advanced Science, EarlyView.A retinoic acid receptor agonist, TTNPB, drives the efficient generation of advanced neural stem cells (ANSCs) from human pluripotent stem cells. TTNPB‐centered chromatin remodeling and metabolic reprogramming, promote neuroectoderm commitment. The resulting cells show robust neural potential and functional efficacy in a rat depression model.
Ruilin Du +17 more
wiley +1 more source
Large‐scale patterns of green turtle trophic ecology in the eastern Pacific Ocean
Ecosphere, 2021 Trophic position and niche width are fundamental components of a species’ ecology, reflecting resource use, and influencing key demographic parameters such as somatic growth, maturation, and survival.
Jeffrey A. Seminoff +20 more
doaj +1 more source