نتایج جستجو برای: biological competition

تعداد نتایج: 545385  

2015
Laura Fernández-de-Uña Isabel Cañellas Guillermo Gea-Izquierdo

Plant-plant interactions influence how forests cope with climate and contribute to modulate species response to future climate scenarios. We analysed the functional relationships between growth, climate and competition for Pinus sylvestris, Quercus pyrenaica and Quercus faginea to investigate how stand competition modifies forest sensitivity to climate and simulated how annual growth rates of t...

Journal: :Brain, behavior, and immunity 2015
Mirko Pesce Irene La Fratta Valentina Ialenti Antonia Patruno Alessio Ferrone Sara Franceschelli Alessia Rizzuto Raffaella Tatangelo Giovanna Campagna Lorenza Speranza Mario Felaco Alfredo Grilli

Several studies have focused on the relationship between hormonal changes and affective states in sporting contexts relating to an agonistic outcome. More recently, pro-inflammatory cytokines have also been successfully associated with affective state modulation. The aim of this study was to investigate whether athletes who won or lost show different levels of steroid hormones (testosterone and...

1998
R. Miller Helena Matute

In both Pavlovian conditioning and human causal judgment, competition between cues is well known to occur when multiple cues are presented in compound and followed by an outcome. More questionable is the occurrence of competition between outcomes when a single cue is followed by multiple outcomes presented in compound. In the experiment reported here, we demonstrated blocking (a type of stimulu...

Journal: :تحقیقات جغرافیایی 0
احسان لشگری دانشگاه یزد زهرا احمدی پور دانشگاه تربیت مدرس

abstract: after the end of the cold war, were came up different views about nature and how to continue rival in international relations. some scholars of these fields were believe that with the end of ideological competition in the macro level in the world and with any rival hegemonic there is not any basis for more competition between countries and power blocks in the world . so it consider th...

Journal: :New Journal of Physics 2022

Abstract Competition of different species or cell types for limited space is relevant in a variety biological processes such as biofilm development, tissue morphogenesis and tumor growth. Predicting the outcome non-adversarial competition growing active matter non-trivial, it depends on how like growth, proliferation degradation cellular are regulated confinement; regulation that happens even a...

Journal: :Review of European and Russian Affairs 2005

2007
Dalius Balciunas

Species coexistence is one of the central themes in modern ecology. Coexistence is a prerequisite of biological diversity. However, the question arises how biodiversity can be reconciled with the statement of competition theory, which asserts that competing species cannot coexist. To solve this problem natural selection theory is rejected because it contradicts kinetic models of interacting pop...

Journal: :Reviews of reproduction 1987
T Birkhead

Ornithologists have known for a long time that males of monogamous bird species sometimes copulate with females from other pairs, but it is only in the last few years that researchers have shown that these extra-pair copulations can result in offspring and increase male reproductive success. Males time their extra-pair copulations to coincide with the period when females are fertilizable, and t...

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