Related Experiment Video
Updated: Jul 1, 2025
10:20
Linking Predation Risk, Herbivore Physiological Stress and Microbial Decomposition of Plant Litter
Published on: March 12, 2013
13.4K
Dispersal stabilizes coupled ecological and evolutionary dynamics in a host-parasitoid system
Lucas A Nell1, Miriam Kishinevsky1, Michael J Bosch1
1Department of Integrative Biology, University of Wisconsin, Madison, WI 53706, USA.
Science (New York, N.Y.)
|March 14, 2024
Summary
Parasitoid dispersal creates varied selection, driving host resistance evolution. This, with host dispersal and trade-offs, allows species coexistence and maintains genetic variation, stabilizing eco-evolutionary dynamics.
Area of Science:
- Ecology and evolutionary biology
- Population dynamics
- Eco-evolutionary dynamics
Background:
- Eco-evolutionary dynamics require both ecological and evolutionary stability for persistence.
- Key questions involve species coexistence and maintenance of genetic variation.
- Host-parasitoid systems offer a model for studying these dynamics.
Purpose of the Study:
- Investigate eco-evolutionary dynamics in a pea aphid-parasitoid system.
- Understand how host resistance evolves and impacts coexistence.
- Determine the role of dispersal in stabilizing eco-evolutionary processes.
Main Methods:
- Utilized field data and mathematical simulations.
- Conducted experiments on host-parasitoid interactions.
- Analyzed parasitism-mediated selection and host dispersal.
Main Results:
- Heterogeneous parasitoid dispersal creates spatiotemporal variation in selection.
- Evolutionary trade-offs and host dispersal facilitate coexistence.
- Genetic variation in host resistance is maintained.
- Dispersal stabilizes both ecological and evolutionary components of dynamics.
Conclusions:
- Dispersal is a critical factor in stabilizing eco-evolutionary dynamics.
- Understanding dispersal is key to predicting species coexistence and genetic diversity.
- This study provides a framework for analyzing complex eco-evolutionary interactions.
Related Concept Videos
00:54Distribution and Dispersion
21.8K
To understand intra-specific interactions in populations, scientists measure the spatial arrangement of species individuals. This geographic arrangement is known as the species distribution or dispersion. Highly territorial species exhibit a uniform distribution pattern, in which individuals are spaced at relatively equal distances from one another. Species that are highly tied to particular resources, such as food or shelter, tend to concentrate around those resources, and thus exhibit a...
21.8K
01:07Speciation Rates
21.2K
Overview
21.2K
00:58Symbiosis
27.9K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
27.9K
02:39Predator-Prey Interactions
16.2K
Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.
16.2K
02:26Ecological Disturbance
17.1K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
17.1K
01:31Formation of Species
39.3K
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
39.3K