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23.08.2012 · Whitehead DJ, Wilke CO, Vernazobres D, Bornberg-Bauer E: The look-ahead effect of phenotypic mutations. Biol Direct. 2008, 3: 18-10.1186/1745-6150-3-18. PubMed PubMed Central Article Google Scholar 52.

Direct Effect. These occur when organisms have a close relationship (such as predation, competition or mutualism) I.E. - Sea Otters have a Direct Effect on ...

23.01.2002 · Temperature directly affects development, survival, range and abundance. Species with a large geographical range will tend to be less affected. The main effect of temperature in temperate regions is to influence winter survival; at more northerly latitudes, higher temperatures extend the summer season, increasing the available thermal budget for growth and reproduction.

The first of these, direct effects, as the name implies, deals with the direct impact of one individual on another when not mediated or transmitted through a ...

this example, interest is focused on the direct effect of the pill because it represents a stable biological relationship that, unlike the total effect, ...

Direct effects are caused by radiation, when radiation interacts directly with the atoms of the DNA molecule, or some other cellular component critical to the survival of the cell. The probability of the radiation interacting with the DNA molecule is very small since these critical components make up such a small part of the cell.

Direct ionization occurs when charged particles, e.g., electrons, with sufficient kinetic energy interact with cellular atoms or molecules to create free ...

Biology Direct Collection published: 9 July 2008. ... Citation Impact 4.540 - 2-year Impact Factor 3.351 - 5-year Impact Factor 0.684 - Source Normalized Impact per Paper (SNIP) 1.515 - SCImago Journal Rank (SJR) Usage 346,624 downloads 126 Altmetric mentions. More about our metrics .

Jan 15, 2008 · The ecological impacts of the indirect effects of predators are well established, but the evolutionary consequences are unknown. Predators often decrease prey density, which indirectly increases the resources available to surviving prey. This ecological effect could provide a link to evolution because it is generally assumed that resource availability influences life history evolution. Yet ...

In addition, most studies have considered only the direct effects of biological factors on extinction. However, factors can contribute both ...

04.12.2021 · Direct effects, as the name implies, deal with the direct impact of one individual on another when not mediated or transmitted through a third individual. Indirect effects can be defined as the ...

Reactor Concepts Manual Biological Effects of Radiation USNRC Technical Training Center 9-4 0603 Damage To DNA From Ionization Direct Effect If radiation interacts with the at oms of the DNA molecule, or some other cellular component critical to the survival of the cell, it is referred to as a direct effect. Such an interaction may affect the ...

2 dager siden · Direct and Indirect Interactions. Citation: Moon, D. C., Moon, J. & Keagy, A. (2010) Direct and Indirect Interactions. Nature Education Knowledge 3 (10) :50. Ecological communities are shaped by a ...

Aug 16, 2011 · Linear regression models were used to assess the direct effects of biological factors on extinction risk. When each factor is considered separately (Fig. 1A and Table 1), geographic range size exerts the strongest direct effect on the duration of bivalve species. Species with larger geographic ranges persisted over longer intervals of time than those species with smaller geographic ranges.

Direct impacts occur through direct interaction of an activity with an environmental, social, or economic component. ADVERTISEMENTS: For example, a discharge of any industry or an effluent from the Effluent Treatment Plant (ETP) from the industrial estates into a river may lead to a decline in water quality in terms of high biological oxygen demand (BOD) or dissolved oxygen …

The first of these, direct effects, as the name implies, deals with the direct impact of one individual on another when not mediated or transmitted through a third individual.

Human activities are expected to result in a diversity of directional or stochastic constraints that affect species either directly or by indirectly ...

14.12.2019 · All biological damage effects begin with the consequence of radiation interactions with the atoms forming the cells. All living things are composed of one or more cells. Every part of your body consists of cells or was built by them. Although we tend to think of biological effects in terms of the effect of radiation on living cells, in actuality, ionizing radiation, by definition, …

Direct Effect If radiation interacts with the at oms of the DNA molecule, or some other cellular component critical to the survival of the cell, it is referred to as a direct effect. Such an interaction may affect the ability of the cell to reproduce and, thus, surv ive. If enough atoms are affected such that the chromosomes do not

These two mechanisms are commonly called direct effects and indirect effects. Radiation Dosimetry. All biological damage effects begin with ...

“Indirect effect” is a general term referring to a broad variety of species interactions that can occur through chains of direct species ...