Question

What are cohesion species and how are they maintained?

   What are cohesion species and how are they maintained?

Plant Systematics

Plant Systematics

Michael G. Simpson 2nd Edition

Chapter 19, Problem 15

Instant Answer

Solved by Expert Sam Limsuwannarot

05/20/2020

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This can be seen in various animal species such as wolves, elephants, and dolphins, where individuals work together for the benefit of the group. Show more…

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What are cohesion species and how are they maintained?

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Key Concepts

Cohesion Species Concept

This concept views species as integrated, evolving units whose distinctiveness is maintained by cohesive forces such as gene flow and natural selection. It emphasizes that what unites a species is not just reproductive isolation from other species, but the ongoing processes that create and preserve internal genetic, ecological, and evolutionary integration.

Gene Flow

Gene flow is the movement and exchange of genes among populations, which plays a critical role in maintaining species cohesion by preventing divergence. Through migration and interbreeding, gene flow helps to homogenize genetic differences within a species, ensuring that populations remain genetically connected and function as a singular evolutionary unit.

Natural Selection

Natural selection is the evolutionary process that favors certain genetic combinations over others based on environmental pressures. In the context of species cohesion, it acts to maintain a species’ adaptive integrity by promoting genetic variants that work well together, thereby counteracting forces that might otherwise lead to divergence and fragmentation.

Population Integration

Population integration refers to the processes that ensure subpopulations of a species do not diverge into separate entities. Mechanisms like dispersal, mating patterns, and ecological interactions work together to keep populations genetically and functionally united, which is central to the concept of cohesion species.

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