Host-mediated dispersal shapes spatial distribution of genetic variability in marine symbionts

Pagan, J. Andres; Xavier, Raquel; Sikkel, Paul C.; Veríssimo, Ana

doi:10.5343/bms.2021.0046

Cited by 4 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All interactions are likely to affect selection on, and the consequences of dispersal. For instance, a large proportion of parasitic and mutualistic symbionts disperse thanks to the movement of their hosts [25][26][27] and plants often make use of animal vectors to disperse their seeds [28,29].…”

Section: Introductionmentioning

confidence: 99%

Evolutionary ecology of dispersal in biodiverse spatially structured systems: what is old and what is new?

Fronhofer,

Bonte,

Bestion

et al. 2024

Phil. Trans. R. Soc. B

View full text Add to dashboard Cite

Dispersal is a well-recognized driver of ecological and evolutionary dynamics, and simultaneously an evolving trait. Dispersal evolution has traditionally been studied in single-species metapopulations so that it remains unclear how dispersal evolves in metacommunities and metafoodwebs, which are characterized by a multitude of species interactions. Since most natural systems are both species-rich and spatially structured, this knowledge gap should be bridged. Here, we discuss whether knowledge from dispersal evolutionary ecology established in single-species systems holds in metacommunities and metafoodwebs and we highlight generally valid and fundamental principles. Most biotic interactions form the backdrop to the ecological theatre for the evolutionary dispersal play because interactions mediate patterns of fitness expectations across space and time. While this allows for a simple transposition of certain known principles to a multispecies context, other drivers may require more complex transpositions, or might not be transferred. We discuss an important quantitative modulator of dispersal evolution—increased trait dimensionality of biodiverse meta-systems—and an additional driver: co-dispersal. We speculate that scale and selection pressure mismatches owing to co-dispersal, together with increased trait dimensionality, may lead to a slower and more ‘diffuse’ evolution in biodiverse meta-systems. Open questions and potential consequences in both ecological and evolutionary terms call for more investigation. This article is part of the theme issue 'Diversity-dependence of dispersal: interspecific interactions determine spatial dynamics'.

show abstract

Section: Introductionmentioning

confidence: 99%

Evolutionary ecology of dispersal in biodiverse spatially structured systems: what is old and what is new?

Fronhofer,

Bonte,

Bestion

et al. 2024

Phil. Trans. R. Soc. B

View full text Add to dashboard Cite

show abstract

Blood meal identification reveals extremely broad host range and host-bias in a temporary ectoparasite of coral reef fishes

Hendrick,

Nicholson,

Pagan

et al. 2023

Oecologia

View full text Add to dashboard Cite

Appreciation for the role of cryptofauna in ecological systems has increased dramatically over the past decade. The impacts blood-feeding arthropods, such as ticks and mosquitos, have on terrestrial communities are the subject of hundreds of papers annually. However, blood-feeding arthropods have been largely ignored in marine environments. Gnathiid isopods, often referred to as "ticks of the sea", are temporary external parasites of shes. They are found in all marine environments and have many consequential impacts on host tness. Because they are highly mobile and only associated with their hosts while obtaining a blood meal, their broader trophic connections are di cult to discern. Conventional methods rely heavily on detecting gnathiids on wild-caught shes. However, this approach typically yields few gnathiids and does not account for hosts that avoid capture. To overcome this limitation, we sequenced blood meals of free-living gnathiids collected in light traps to assess the host range and community-dependent exploitation of Caribbean gnathiid isopods. Using sh-speci c COI (cox1) primers, sequencing individual blood meals from 1,060 gnathiids resulted in the identi cation of 70 host sh species from 27 families. Comparisons of sh assemblages to blood meal identi cation frequencies at four collection sites indicated that shes within the families Haemulidae (grunts) and Lutjanidae (snappers) were exploited more frequently than expected based on their biomass, and Labrid parrot shes were exploited less frequently than expected. The broad host range along with the biased exploitation of diel-migratory species has important implications for the role gnathiid isopods play in Caribbean coral reef communities.

show abstract

Blood Meal Identification Reveals Extremely Broad Host Range and Host Bias in a Temporary Ectoparasite of Coral Reef Fishes

Hendrick

Nicholson

Pagan

et al. 2023

Preprint

View full text Add to dashboard Cite

Appreciation for the role of cryptofauna in ecological systems has increased dramatically over the past decade. The impacts blood-feeding arthropods, such as ticks and mosquitos, have on terrestrial communities are the subject of hundreds of papers annually. However, blood-feeding arthropods have been largely ignored in marine environments. Gnathiid isopods, often referred to as “ticks of the sea”, are temporary external parasites of fishes. They are found in all marine environments and have many consequential impacts on host fitness. Because they are highly mobile and only associated with their hosts while obtaining a blood meal, their broader trophic connections are difficult to discern. Conventional methods rely heavily on detecting gnathiids on wild-caught fishes. However, this approach typically yields few gnathiids and does not account for hosts that avoid capture. To overcome this limitation, we sequenced blood meals of free-living gnathiids collected in light traps to assess the host range and community-dependent exploitation of Caribbean gnathiid isopods. Using fish-specific COI (cox1) primers, sequencing individual blood meals from 1,060 gnathiids resulted in the identification of 70 host fish species from 27 families. Comparisons of fish assemblages to blood meal identification frequencies at four collection sites indicated that fishes within the families Haemulidae (grunts) and Lutjanidae (snappers) were exploited more frequently than expected based on their biomass, and Labrid parrotfishes were exploited less frequently than expected. The broad host range along with the biased exploitation of diel-migratory species has important implications for the role gnathiid isopods play in Caribbean coral reef communities.

show abstract

Host-mediated dispersal shapes spatial distribution of genetic variability in marine symbionts

Cited by 4 publications

References 7 publications

Evolutionary ecology of dispersal in biodiverse spatially structured systems: what is old and what is new?

Evolutionary ecology of dispersal in biodiverse spatially structured systems: what is old and what is new?

Blood meal identification reveals extremely broad host range and host-bias in a temporary ectoparasite of coral reef fishes

Blood Meal Identification Reveals Extremely Broad Host Range and Host Bias in a Temporary Ectoparasite of Coral Reef Fishes

Contact Info

Product

Resources

About