The American Naturalist, Journal Year: 2023, Volume and Issue: 203(1), P. 147 - 159
Published: Nov. 28, 2023
Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(6)
Published: June 1, 2024
Abstract Eco‐evolutionary experiments are typically conducted in semi‐unnatural controlled settings, such as mesocosms; yet inferences about how evolution and ecology interact the real world would surely benefit from natural uncontrolled settings. Opportunities for rare but do arise context of restoration ecology—where different “types” a given species can be introduced into “replicate” locations. Designing requires wrestling with consequential questions. (Q1) Which specific focal should to location? (Q2) How many sources each type used—and they mixed together? (Q3) source populations used? (Q4) type(s) or population(s) which sites? We recently grappled these questions when designing an eco‐evolutionary experiment threespine stickleback ( Gasterosteus aculeatus ) nine small lakes ponds on Kenai Peninsula Alaska that required restoration. After considering options at length, we decided use benthic versus limnetic ecotypes create group colonists four ecotype (Q2), where were identified based trophic morphology (Q3), then scaled by lake size (Q4). hope outlining alternatives resulting choices will make rationales clear future studies leveraging our experiment, while also proving useful investigators similar future.
Language: Английский
Citations
5
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: June 27, 2024
Abstract When species disperse into previously unoccupied habitats, new populations encounter unfamiliar interactions such as altered parasite loads. Theory predicts that newly founded should exhibit destabilized eco-evolutionary fluctuations in infection rates and immune traits. However, to understand founder effects biologists typically rely on retrospective studies of range expansions, missing early-generation dynamics. To remedy this, we experimentally whole-lake threespine stickleback. Infection were temporally stable native source lakes. In contrast, host-parasite dynamics: high starting led increases a heritable trait (peritoneal fibrosis), suppressing rates. The resulting temporal auto-correlation between immunity suggest can rapid
Language: Английский
Citations
2
Ecology and Evolution, Journal Year: 2023, Volume and Issue: 13(9)
Published: Sept. 1, 2023
Pelvic spine polymorphism occurs in several species the stickleback family (Gasterosteidae). Given similar phenotypic polymorphisms multiple species, we sought to determine extent of parallelism ecological correlates pelvic reduction. Based on a metabarcoding analysis brook gut contents two polymorphic populations, found that significant diet differences were associated with reduction, but no clear or consistent trend supporting tendency for benthic feeding pelvic-reduced sticklebacks. These results contrast those threespine sticklebacks where reduction is often diet. Hence, non-parallel consequences across species. Furthermore, difference gill raker morphology has been frequently observed between ecomorphs different diets many fish However, evidence any
Language: Английский
Citations
4
Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(8)
Published: Aug. 1, 2024
Multiple species of the elephant fishes (Mormyridae) commonly coexist in sympatry most African tropical rivers and lakes. In this study, we investigated trophic ecology potential niche partitioning eleven mormyrid fish from Sanaga River system Cameroon using stable isotope composition carbon nitrogen muscle samples. Albeit mormyrids mainly feed on invertebrates, found differences ratios, report signs among species. We further significant isotopic signatures within
Language: Английский
Citations
1
Evolution Letters, Journal Year: 2024, Volume and Issue: 9(1), P. 115 - 124
Published: Sept. 24, 2024
Abstract The genetic basis of phenotypic or adaptive parallelism can reveal much about constraints on evolution. This study investigated the a canonically parallel trait: pelvic spine reduction in sticklebacks. Pelvic has highly threespine stickleback populations around world, always involving deletion pel1 enhancer Pitx1. We conducted genome-wide association to investigate 3 brook Alberta, Canada. did not involve Pitx1 any populations. Instead, 1 population involved mutation an exon Tbx4, and it intron Lmbr1 other two Hence, evolution across genera, among populations, nonparallel basis. suggests that there may be redundancy this polymorphism, but is clear whether lack indicates constraint trait. Whether different pleiotropic effects mutations have fitness consequences certain confer specific benefits environments remains determined.
Language: Английский
Citations
1
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown
Published: April 5, 2023
Abstract Pelvic spine polymorphism occurs in several species the stickleback family (Gasterosteidae). Given similar phenotypic polymorphisms multiple species, we sought to determine extent of parallelism ecological correlates pelvic reduction. Based on a metabarcoding analysis brook gut contents two polymorphic populations, found significant diet differences were associated with reduction, but no clear or consistent trend supporting tendency for benthic feeding pelvic-reduced stickleback. These results contrast those threespine where reduction is often diet. Hence, non-parallel consequences across species. Furthermore, difference gill raker morphology has been frequently observed between ecomorphs differen diets many fish But, evidence any
Language: Английский
Citations
0
The American Naturalist, Journal Year: 2023, Volume and Issue: 203(1), P. 147 - 159
Published: Nov. 28, 2023
Citations
0