ArticleOecologia2015
Changes in digestive traits and body nutritional composition accommodate a trophic niche shift in Trinidadian guppies.
Article in Oecologia, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 39 citations in OpenAlex.
- Shifts in gut microbiome across five decades of repeated guppy translocations in Trinidadian streams.Proceedings. Biological sciences · 2022Article
- Comparative transcriptomics reveal tissue level specialization towards diet in prickleback fishes.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2022Article
- Consumer trait responses track change in resource supply along replicated thermal gradients.Proceedings. Biological sciences · 2021Article
- Article
- Extreme environmental conditions reduce coral reef fish biodiversity and productivity.Nature communications · 2020Article
- Microbiota Landscape of Gut System of Guppy Fish (International journal of microbiology · 2019Article
- The Expensive-Tissue Hypothesis in Vertebrates: Gut Microbiota Effect, a Review.International journal of molecular sciences · 2018Review
- The effects of protein and fiber content on gut structure and function in zebrafish (Danio rerio).Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2018Article
- Effects of predation stress and food ration on perch gut microbiota.Microbiome · 2018Article
- Population variation in the trophic niche of the Trinidadian guppy from different predation regimes.Scientific reports · 2017Article
- Stoichiometric traits of stickleback: Effects of genetic background, rearing environment, and ontogeny.Ecology and evolution · 2017Article
- The effect of top-predator presence and phenotype on aquatic microbial communities.Ecology and evolution · 2017Article
- Increased juvenile predation is not associated with evolved differences in adult brain size in Trinidadian killifish (Ecology and evolution · 2017Article
- The influence of dietary and whole-body nutrient content on the excretion of a vertebrate consumer.PloS one · 2017Article
- Predator-driven brain size evolution in natural populations of Trinidadian killifish (Rivulus hartii).Proceedings. Biological sciences · 2016Article
- The effect of brain size evolution on feeding propensity, digestive efficiency, and juvenile growth.Evolution; international journal of organic evolution · 2015Article
- Article
- Divergence across diet, time and populations rules out parallel evolution in the gut microbiomes of Trinidadian guppies.The ISME journal · 2015Article
- Contrasting Population and Diet Influences on Gut Length of an Omnivorous Tropical Fish, the Trinidadian Guppy (Poecilia reticulata).PloS one · 2015Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A trophic niche shift can occur as an adaptive response to environmental change such as altered resource quality, abundance or composition. Alterations in digestive traits such as gut morphology and physiology may enable these niche shifts and affect the persistence of populations and species. Relatively few studies, however, have assessed how niche shifts influence suites of digestive traits through phenotypic plasticity and evolutionary mechanisms, and how these trait changes can subsequently alter the nutrition, fitness and life history of organisms. We investigated how population divergence and plasticity alter the gut physiology of wild Trinidadian guppies (Poecilia reticulata), assessing whether variation in digestive traits correspond with enhanced nutrient assimilation under a pronounced dietary shift. We examined gut enzyme activity, and gut size and mass of wild guppies from both high-predation (HP) and low-predation (LP) habitats when reared in the laboratory and fed on high- or low-quality diets designed to reflect their dietary differences previously found in nature. After 10 weeks on the experimental diets, HP guppies maintained shorter and lighter guts than LP guppies on either diet. Guppies also differed in their digestive enzymatic profiles, more often reflecting nutrient balancing so that increased enzyme expression tended to correspond with more deficient nutrients in the diet. LP guppies had increased somatic phosphorus at the end of the experiment, possibly related to the higher alkaline phosphatase activity in their guts. Our results suggest that differences in gut physiology exist among populations of Trinidadian guppies that may reflect local adaptation to their disparate environments.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.