Results 31 to 40 of about 3,161,795 (320)
The Effect of Geometry on Survival and Extinction in a Moving-Boundary Problem Motivated by the Fisher-KPP Equation [PDF]
The Fisher-Stefan model involves solving the Fisher-KPP equation on a domain whose boundary evolves according to a Stefan-like condition. The Fisher-Stefan model alleviates two practical limitations of the standard Fisher-KPP model when applied to biological invasion.
arxiv +1 more source
BACKGROUND Understanding why only a subset of trauma-exposed individuals develop posttraumatic stress disorder (PTSD) is critical for advancing clinical strategies.
S. Monari+9 more
semanticscholar +1 more source
The Late Ordovician–Early Silurian period was a significant transitional phase in geological history and has garnered global interest. This study focuses on the black shale series of the Wufeng Formation–Longmaxi Formation of the Upper Ordovician–Lower ...
Zhibo Zhang+5 more
doaj +1 more source
Extinction in a branching process: Why some of the fittest strategies cannot guarantee survival [PDF]
The fitness of a biological strategy is typically measured by its expected reproductive rate, the first moment of its offspring distribution. However, strategies with high expected rates can also have high probabilities of extinction. A similar situation
Klaere, Steffen, Sawaya, Sterling
core +2 more sources
The advantage of being slow: the quasi-neutral contact process [PDF]
According to the competitive exclusion principle, in a finite ecosystem, extinction occurs naturally when two or more species compete for the same resources.
de Oliveira, Marcelo Martins+1 more
core +6 more sources
Biologically inspired near extinct system reconstruction [PDF]
Recovery software system operations from a state of extensive damage without human intervention is a challenging problem as it may need to be based on a different infrastructure from the one that the system was originally designed for and deployed on (i.e., computational and communication devices) and significant reorganization of system ...
Dimitrios I. Fotiadis+4 more
openaire +2 more sources
Biological diversity and probability of local extinction of ecosystems [PDF]
Abstract1. With a mathematical model, we demonstrate that two principle components of biological diversity have antagonistic effects on the probability of ecosystem functioning (i.e. on ecosystem reliability, sensuNaeem 1998). Increasing the number of functionally analogous species in the system is shown to enhance reliability, while increasing the ...
Nijs, Ivan, Impens, Ivan
openaire +3 more sources
Behavioral Correlates of Primates Conservation Status: Intrinsic Vulnerability to Anthropogenic Threats. [PDF]
Behavioral traits are likely to influence species vulnerability to anthropogenic threats and in consequence, their risk of extinction. Several studies have addressed this question and have highlighted a correlation between reproductive strategies and ...
Amélie Christelle Lootvoet+2 more
doaj +1 more source
Extinction in neutrally stable stochastic Lotka-Volterra models [PDF]
Populations of competing biological species exhibit a fascinating interplay between the nonlinear dynamics of evolutionary selection forces and random fluctuations arising from the stochastic nature of the interactions.
Dobrinevski, A., Frey, E.
core +2 more sources
As the prospect of self-authored human extinction increasingly appears as a plausible scenario of human futures, a growing number of efforts aim at comprehending it as the prospect of the world without us.
Zoltán Boldizsár Simon
doaj +1 more source