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Related Concept Videos

Competition02:34

Competition

When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.Intraspecific competition, which occurs between individuals of the same species, serves as a natural mechanism for regulating population size. Too much...
The Colonization of Land02:22

The Colonization of Land

Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
Microbial Interactions: Competition01:26

Microbial Interactions: Competition

Microbial competition is an ecological interaction in which microorganisms vie for limited resources within shared environments. These resources may include nutrients, space, or light, depending on the system. The intensity and outcome of competition are influenced by the environmental context, such as nutrient availability, spatial constraints, and the diversity of microbial species present. These competitive interactions significantly influence the structure, function, and resilience of...
Ecological Niches02:02

Ecological Niches

All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.Multiple species cannot occupy the exact same niche within their habitat. If the niches of two or more species overlap to a large extent, the competitive exclusion principle dictates that one species will outcompete the other, forcing it to...
Water and Mineral Acquisition02:34

Water and Mineral Acquisition

Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
Types of Surveys01:27

Types of Surveys

Surveys are essential for marking property boundaries near water bodies. Different types of surveys are defined, each with its own function. Land surveys mark the property boundaries, while route surveys determine the position of properties on nearby highways. Topographic surveys create maps by capturing the three-dimensional features of the land. Hydrographic surveys focus on the shapes of underwater areas and the movement of streams through the properties. Mine surveys determine the relative...

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Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
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Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm

Published on: December 9, 2012

Competition for land.

Pete Smith1, Peter J Gregory, Detlef van Vuuren

  • 1Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen AB24 3UU, UK. pete.smith@abdn.ac.uk

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
|August 18, 2010
PubMed
Summary
This summary is machine-generated.

Feeding a future population of 9 billion requires sustainable land use. Policy decisions and technological advancements are crucial to manage land competition and ensure global food security.

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Last Updated: Jun 10, 2026

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11:53

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Published on: December 9, 2012

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Area of Science:

  • Agricultural Science
  • Environmental Science
  • Population Studies

Background:

  • Global population growth presents a significant challenge for sustainable food production.
  • Competition for land is a complex issue influenced by various socio-economic and environmental factors.

Purpose of the Study:

  • To analyze historical and future land-use changes.
  • To understand the drivers and pressures influencing land competition.
  • To evaluate the impact of policy decisions on future land demand.

Main Methods:

  • Review of land-use change over the past 20 years.
  • Analysis of future land-use projections for the next 40 years.
  • Examination of modeling studies on policy impacts.

Main Results:

  • Land competition is an emergent property of multiple drivers, not a primary driver itself.
  • Policy decisions in agriculture, forestry, energy, and conservation significantly affect land demand.
  • Addressing population growth, dietary shifts, and conservation policies can reduce land competition.

Conclusions:

  • Sustainable food security for a growing population necessitates integrated policies.
  • Technological innovations to increase agricultural productivity are vital.
  • Future projections are subject to uncertainties in drivers, models, and policy assumptions.