Results 71 to 80 of about 44,768 (308)
A Threefold Genetic Allee Effect [PDF]
Genetics, 2005 Abstract A decline in population size can lead to the loss of allelic variation, increased inbreeding, and the accumulation of genetic load through drift. We estimated the fitness consequences of these processes in offspring of controlled within-population crosses from 13 populations of the self-incompatible, clonal plant Ranunculus ...
Yvonne Willi +2 more
openaire +1 more source
Chiral Nanohoops as an Efficient Spin Polarization System
Advanced Functional Materials, EarlyView.Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta +4 more
wiley +1 more source
Predator-Prey Interactions: Insights into Allee Effect Subject to Ricker Model [PDF]
, 2023 M. Y. Hamada +2 more
openalex +1 more source
\u3ci\u3eHexagenia Bilineata\u3c/i\u3e (Ephemeroptera: Ephemeridae) Persists at Low Levels of Abundance in the Lower Fox River, Wisconsin [PDF]
, 2018 After burrowing mayflies (Hexagenia bilineata) were first noted in the vicinity of the DePere Dam on the Fox River in 1991, adults have been observed in small numbers each summer since then.
Cochran, Phillip A, Kinziger, Andrew P
core +2 more sources
Biomimetic Fibrinogen Nanofiber Scaffolds for Vascular Hematopoietic Stem Cell Niche Engineering
Advanced Healthcare Materials, EarlyView.This study presents an advanced in vitro model of the vascular hematopoietic stem cell niche using self‐assembled fibrinogen nanofibers, mimicking the basement membrane in bone marrow (BM) sinusoids. The model supports the coculture of microvascular endothelial cells, stromal cells, and hematopoietic stem and progenitor cells, providing insights into ...
Sophia Lena Meermeyer +4 more
wiley +1 more source
Stochastic difference equations with the Allee effect
, 2016 For a truncated stochastically perturbed equation $x_{n+1}=\max\{ f(x_n)+l\chi_{n+1}, 0 \}$ with $f(x)f(H)>m$. As the amplitude grows, an interval $(m-\varepsilon, m+\delta)$ of initial values arises and expands, such that with a certain probability ...
Braverman, Elena, Rodkina, Alexandra
core +1 more source
Bistability induced by generalist natural enemies can reverse pest invasions [PDF]
, 2016 Reaction-diffusion analytical modeling of predator-prey systems has shown that specialist natural enemies can slow, stop and even reverse pest invasions, assuming that the prey population displays a strong Allee effect in its growth.
Barles, Guy +3 more
core +4 more sources
Advanced Materials, EarlyView.Glass, historically valued for its purity and durability, has long inspired artists and societies. This article introduces the concept of “Archeo‐Inspiration”, drawing on cultural and historical contexts of glass to guide future material innovations.
Eva von Contzen +3 more
wiley +1 more source
Impact of Refuge on the Dynamical Behavior of a Tri-Trophic Food Chain Model Under Allee Effect in Prey Species [PDF]
EPJ Web of ConferencesThe current study focuses on the impact of refuge on the dynamical behaviour of a tri-trophic food chain model under the Allee effect in prey species. The model investigates the asymptotic behaviour of multiple equilibrium points and the influence of the
Kumawat Lokesh, Kaur Harpreet
doaj +1 more source
Impact of the fear and Allee effect on a Holling type II prey–predator model
Advances in Difference Equations, 2021 In this paper, we propose and investigate a prey–predator model with Holling type II response function incorporating Allee and fear effect in the prey. First of all, we obtain all possible equilibria of the model and discuss their stability by analyzing ...
Binfeng Xie
doaj +1 more source