Works (53)

Updated: June 12th, 2024 05:01

2024 review

Predictability, an Orrery, and a Speciation Machine: Quest for a Standard Model of Speciation

[Review of ]. COLD SPRING HARBOR PERSPECTIVES IN BIOLOGY, 16(6).

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Source: Web Of Science
Added: June 11, 2024

2023 article

Editorial: Fish as sentinels of urbanization impacts in aquatic ecosystems

Rosso, J. J., Langerhans, R. B., & Avigliano, E. (2023, April 11). FRONTIERS IN ENVIRONMENTAL SCIENCE, Vol. 11.

By: J. Rosso*, R. Langerhans n & E. Avigliano*

author keywords: freshwater fishes; marine ecosystems; phenotypes; alien species; mangroves; habitat degradation; assemblage homogenisation; lamprey
TL;DR: This topic Research Topic includes five key contributions examining changes in fish assemblages, populations and phenotypes, and their potential ecological, evolutionary and economic consequences caused by urban-induced changes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: May 22, 2023

2023 journal article

Fluctuating selection maintains distinct species phenotypes in an ecological community in the wild

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 120(42).

author keywords: natural selection; fitness landscape; adaptive landscape; fluctuating selection; paradox of stasis
TL;DR: It is found that species were maintained on these peaks by the combination of many independent periods among which selection fluctuated in form, strength, direction, or existence and in which stabilizing selection rarely occurred. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: December 18, 2023

2023 article

Freshwater fishes maintain multi-trait phenotypic stability across an environmental gradient in aqueous calcium

Sanderson, S., Astorg, L., Haines, G. E. E., Beaumont-Courteau, S., Langerhans, R. B., Derry, A. M. M., & Hendry, A. P. P. (2023, May 14). JOURNAL OF FISH BIOLOGY.

author keywords: environmental gradients; freshwater ecosystems; functional traits; homeostasis; skeletal traits; water chemistry
TL;DR: Results show that native fishes maintain phenotype stability across a suite of functional traits linked to calcium regulation, perhaps pointing to an "organismal-level homeostasis" scenario rather than a "trait-levelHomeostasis", as well as expanding prior work on skeletal element sizes and bone densities. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: May 30, 2023

2023 journal article

The roar of Rancho La Brea? Comparative anatomy of modern and fossil felid hyoid bones

JOURNAL OF MORPHOLOGY, 284(10).

By: A. Deutsch n, R. Langerhans n, D. Flores n & A. Hartstone-Rose n

author keywords: functional morphology; Panthera atrox; Smilodon fatalis; vocal apparatus
TL;DR: It is found that extant members of Felinae and Panthera showed characteristic differences in hyoid size and shape that suggest possible functional relationships with vocalization, potentially reflecting the ability to produce lower frequency vocalizations as well as more substantial muscles associated with swallowing and respiration. (via Semantic Scholar)
Source: Web Of Science
Added: September 5, 2023

2022 journal article

Sex matters: predator presence induces sexual dimorphism in a monomorphic prey, from stress genes to morphological defences

EVOLUTION, 77(1), 304–317.

author keywords: phenotypic plasticity; stress physiology; nducible morphological defence; predator-prey interactions; POMC; crucian carp
MeSH headings : Animals; Female; Male; Sex Characteristics; Predatory Behavior / physiology; Carps
TL;DR: It is reported that among-individual variation in morphological defence expression can be linked to sex, and a correlative link between the sex-specific inducible phenotypic response and gene expression patterns in major stress-related genes (POMC, MC3R, and MC4R) is uncovered. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: July 24, 2023

2021 article

Antipredator phenotype in crucian carp altered by a psychoactive drug

Vinterstare, J., Bronmark, C., Nilsson, P. A., Langerhans, R. B., Berglund, O., Orjes, J., … Hulthen, K. (2021, June 14). ECOLOGY AND EVOLUTION.

author keywords: antipredator traits; inducible defenses; phenotypic plasticity; psychoactive drugs; serotonergic system; SSRI
TL;DR: The results highlight that environmental pollution by pharmaceuticals could disrupt physiological regulation of ecologically important inducible defenses, and influence the physiological stress response in a model species, crucian carp. (via Semantic Scholar)
Source: Web Of Science
Added: June 21, 2021

2021 journal article

Consuming Costly Prey: Optimal Foraging and the Role of Compensatory Growth

FRONTIERS IN ECOLOGY AND EVOLUTION, 8.

By: R. Langerhans n, T. Goins n, K. Stemp*, R. Riesch*, M. Araujo* & C. Layman n

author keywords: durophagy; food web; growth compensation; niche partitioning; predator-prey interactions; prey choice; resource competition; trophic ecology
TL;DR: It is found that consumption of hard-shelled gastropods results in significantly reduced growth rate, but compensatory growth following prior snail consumption can quickly mitigate growth costs. (via Semantic Scholar)
Source: Web Of Science
Added: April 26, 2021

2021 journal article

Predation and Resource Availability Interact to Drive Life-History Evolution in an Adaptive Radiation of Livebearing Fish

FRONTIERS IN ECOLOGY AND EVOLUTION, 9.

By: K. Hulthen n, J. Hill n, M. Jenkins n & R. Langerhans n

author keywords: common-garden experiment; growth rate; life histories; mortality rates; predator-prey; resource availability; divergent natural selection; Poeciliidae
TL;DR: It appears that life-history evolution in Bahamas mosquitofish in this adaptive radiation has resulted from a complex interplay between predation and resources, underscoring the need for increased attention on more sophisticated interactions among selective agents in driving phenotypic diversification. (via Semantic Scholar)
Source: Web Of Science
Added: May 17, 2021

2021 article

Predation risk and the evolution of a vertebrate stress response: Parallel evolution of stress reactivity and sexual dimorphism

Vinterstare, J., Ugge, G. M. O. E., Hulthen, K., Hegg, A., Bronmark, C., Nilsson, P. A., … Langerhans, R. B. (2021, September 12). JOURNAL OF EVOLUTIONARY BIOLOGY.

author keywords: bahamas mosquitofish; poeciliidae; predation risk; predator-prey interactions; resource availability; sexual dimorphism; stress physiology; stress response; trade-offs; ventilation frequency
MeSH headings : Animals; Cyprinodontiformes; Female; Humans; Phenotype; Predatory Behavior; Sex Characteristics
TL;DR: Variation in stress reactivity in a post‐Pleistocene radiation of live‐bearing fish is explored to highlight how energetic trade‐offs may mould the evolution of the vertebrate stress response under varying predation risk and resource availability. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: September 20, 2021

2020 journal article

Diel vertical migration of copepods and its environmental drivers in subtropical Bahamian blue holes

AQUATIC ECOLOGY, 55(4), 1157–1169.

author keywords: Calanoid copepod; Cyclopoid copepod; Vertical distribution; Predation; Food availability; Ultraviolet radiation; Blue hole; Bahamas
Source: Web Of Science
Added: November 16, 2020

2020 journal article

Inland blue holes of The Bahamas - chemistry and biology in a unique aquatic environment

FUNDAMENTAL AND APPLIED LIMNOLOGY, 194(2), 95–106.

author keywords: Andros Island; anchialine caves; redox biogeochemistry; halocline; sub-tropical; aquatic ecosystems
TL;DR: The water chemistry and biota of ten inland blue holes on Andros Island, The Bahamas, are described, representative of the morphological, abiotic, and biotic variation among Androsian inland blue holes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: January 11, 2021

2020 article

Urbanization and Evolution in Aquatic Environments

URBAN EVOLUTIONARY BIOLOGY, pp. 157–174.

By: R. Langerhans & E. Kern

UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (Web of Science; OpenAlex)
13. Climate Action (Web of Science)
14. Life Below Water (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: October 19, 2020

2019 journal article

Correlates of life-history variation in the livebearing fish Poecilia vivipara (Cyprinodontiformes: Poeciliidae) inhabiting an environmental gradient

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 126(3), 436–446.

author keywords: body size; coastal lagoons; fecundity; gonadosomatic index; livebearing fishes; offspring size; reproductive investment; Restinga de Jurubatiba; salinity gradient; seasonality
TL;DR: This paper presents a meta-modelling system that allows us to assess the level of cooperation between the immune systems of animals and those of humans, and shows clear patterns in response to antibiotics. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: April 2, 2019

2019 journal article

Low-latitude zooplankton pigmentation plasticity in response to multiple threats

ROYAL SOCIETY OPEN SCIENCE, 6(7).

author keywords: Calanoida; Cyclopoida; colorimetric method; predation; ultraviolet radiation; freshwater
TL;DR: The pigmentation levels of Bahamian ‘blue hole’ copepods are investigated to suggest that low-latitude zooplankton in inland environments may exhibit reduced, but non-zero, levels of phenotypic plasticity compared with their high-latitudes counterparts. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: September 3, 2019

2019 journal article

Multiple traits and multifarious environments: integrated divergence of morphology and life history

OIKOS, 129(4), 480–492.

author keywords: adaptive radiation; convergent evolution; divergent natural selection; ecological speciation; Gambusia; Poeciliidae
TL;DR: The utility of gathering disparate data types from multiple populations/species to better understand the causes and nature of phenotypic divergence in the wild is illustrated, and a multivariate approach to disentangle environmental drivers of population divergence in life history and morphology is used. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: January 13, 2020

2019 journal article

Perceptions of Resilience in Fishery-Dependent Bahamian Communities Following a Category 4 Hurricane

FISHERIES, 44(11), 515–523.

By: R. Valdez n, N. Peterson n, A. Chen n, M. Steward n, K. Hannameyer n, H. Seebaluck n, K. Hulthen n, R. Langerhans n

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
14. Life Below Water (Web of Science)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: October 21, 2019

2018 journal article

Thermal regime drives a latitudinal gradient in morphology and life history in a livebearing fish

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 125(1), 126–141.

author keywords: body size; Bergmann's rule; Gambusia holbrooki; population density; productivity; temperature gradient
TL;DR: This work aims to demonstrate the efforts towards in-situ applicability of EMMARM, which aims to provide real-time information about the dynamic response of the immune system to infectious disease. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: October 19, 2018

2017 journal article

Body streamlining is related to higher growth in Bahamian mosquitofish

Evolutionary Ecology Research, 18(4), 383–391.

By: M. Araujo, C. Layman & R. Langerhans

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Comparing two techniques of analyzing sexual dimorphic Gambusia affinis skeletal structure: Clearing and staining to X-ray

Integrative and Comparative Biology, 57, E103–103.

By: A. Malpica, R. Langerhans & B. Moore

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Wildlife species preferences differ among children in continental and island locations

Environmental Conservation, 44(4), 389–396.

Contributors: H. Shapiro n, M. Peterson n, K. Stevenson n, K. Frew n & R. Langerhans n

author keywords: wildlife preferences; cross-cultural; human dimensions; children; environmental education; conservation
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2016 journal article

Causes and Consequences of Genital Evolution

INTEGRATIVE AND COMPARATIVE BIOLOGY, 56(4), 741–751.

MeSH headings : Animals; Biological Evolution; Female; Genitalia, Female / anatomy & histology; Genitalia, Female / physiology; Genitalia, Male / anatomy & histology; Genitalia, Male / physiology; Male; Reproductive Isolation; Selection, Genetic
TL;DR: It is hoped this work provides a roadmap toward increased understanding of the causes and consequences of the conspicuous diversity of primary sexual traits, and thus toward new insights into the evolution of complex traits and the phenotypic causes of speciation. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Correlated evolution of personality, morphology and performance

ANIMAL BEHAVIOUR, 117, 79–86.

By: E. Kern n, D. Robinson n, E. Gass n, J. Godwin n & R. Langerhans n

author keywords: behavioural syndrome; morphology; personality; pleiotropy; stress coping style; swimming performance; zebrafish
TL;DR: It is indicated that evolution of personality can result in concomitant changes in morphology and whole-organism performance, and vice versa. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Curious genitalia are signposts of evolution

New Scientist, 229(3062), 32–33.

By: K. Sukel & B. Langerhans

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

Extremophile Poeciliidae: multivariate insights into the complexity of speciation along replicated ecological gradients

BMC EVOLUTIONARY BIOLOGY, 16.

author keywords: Hydrogen sulfide; Gambusia; Ecological speciation; Life-history evolution; Morphometrics; Poecilia; Reproductive isolation
MeSH headings : Adaptation, Biological; Animals; Biological Evolution; Cyprinodontiformes / metabolism; Cyprinodontiformes / physiology; Ecosystem; Extremophiles / metabolism; Extremophiles / physiology; Female; Gene Flow; Genetic Speciation; Hydrogen Sulfide / metabolism; Male; Multivariate Analysis; Phenotype; Poecilia / metabolism; Poecilia / physiology; Reproductive Isolation; Selection, Genetic
TL;DR: Progress toward ecological speciation was variable, partially reflecting variation in the strength of divergent selection, highlighting the complexity of selective regimes even in natural systems that are seemingly governed by a single, strong selective agent. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Predicting multifarious behavioural divergence in the wild

ANIMAL BEHAVIOUR, 121, 3–10.

author keywords: activity; aggression; behavioural syndrome; boldness; exploration; personality; poeciliid fish; predation; sociability
TL;DR: The results suggest that environmental variation, such as chronic predation risk, can lead to repeatable, and often predictable, changes in multifarious animal behaviours, and that various aspects of behaviour can diversify more or less independently of one another. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2016 review

Speciation through the lens of biomechanics: locomotion, prey capture and reproductive isolation

author keywords: feeding; centrarchids; cichlids; zebrafish; guppies; stickleback
MeSH headings : Animals; Ecology; Fishes; Genetic Speciation; Locomotion; Phenotype; Predatory Behavior; Reproductive Isolation
TL;DR: The role of biomechanics in speciation is investigated using fish predator–prey interactions, a primary driver of fitness for both predators and prey and highlights specific groups of fishes that have been particularly valuable for understanding these dynamic interactions. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Which species to conserve: evaluating children’s species-based conservation priorities

Biodiversity and Conservation, 25(3), 539–553.

By: H. Shapiro n, K. Erickson n, M. Peterson n, K. Frew n, K. Stevenson n & R. Langerhans n

Contributors: H. Shapiro n, K. Erickson n, M. Peterson n, K. Frew n, K. Stevenson n & R. Langerhans n

author keywords: Conservation prioritization; Endemism; Environmental education; Human dimensions; Threatened species; Values
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2015 journal article

Anthropogenic ecosystem fragmentation drives shared and unique patterns of sexual signal divergence among three species of Bahamian mosquitofish

EVOLUTIONARY APPLICATIONS, 8(7), 679–691.

author keywords: coloration; divergent evolution; Gambusia; historical contingency; parallel evolution; rapid evolution; sexual selection
TL;DR: It is suggested that even closely related species can exhibit diverse phenotypic responses when encountering similar human‐mediated selection regimes, and fragmentation‐mediated increased turbidity as a possible driver of these trait shifts is identified. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Little evidence for morphological change in a resilient endemic species following the introduction of a novel predator

JOURNAL OF EVOLUTIONARY BIOLOGY, 28(11), 2054–2067.

author keywords: contemporary evolution; dagaa; ecomorphology; geometric morphometrics; introduced species; Lake Victoria; mukene; predation; predator-prey interactions
MeSH headings : Animals; Cyprinidae / anatomy & histology; Cyprinidae / physiology; Demography; Female; Introduced Species; Lakes; Male; Multivariate Analysis; Perciformes / physiology; Predatory Behavior; Time Factors; Uganda
TL;DR: Testing whether the introduction of the piscivorous Nile perch into East Africa's Lake Victoria coincided with morphological change in one resilient native prey species, the cyprinid fish Rastrineobola argentea, found no clear evidence of predator‐associated change in body shape over time. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Microevolutionary patterns in the common caiman predict macroevolutionary trends across extant crocodilians

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 116(4), 834–846.

author keywords: adaptive radiation; Caiman crocodilus; geometric morphometrics; intraspecific variation; skull shape
TL;DR: It is shown that C. crocodilus skulls vary along a narrow/broad-snouted continuum, with different subspecies strongly clustered at distinct ends of the continuum, suggesting that mechanisms of microevolutionary divergence within species may also explain broader patterns of diversification at higher taxonomic levels. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Origins of female genital diversity: Predation risk and lock-and-key explain rapid divergence during an adaptive radiation

EVOLUTION, 69(9), 2452–2467.

author keywords: Coevolution; cryptic female choice; genital evolution; reproductive character displacement; sexual conflict; sexual selection
MeSH headings : Analysis of Variance; Animals; Bahamas; Biological Evolution; Cyprinodontiformes / anatomy & histology; Cyprinodontiformes / genetics; Female; Genetic Variation; Genitalia, Female / anatomy & histology; Male; Mating Preference, Animal; Predatory Behavior; Selection, Genetic; Sexual Behavior, Animal
TL;DR: A strong role for ecology in generating female genital diversity is demonstrated, and it is suggested that lock‐and‐key may provide a viable cause of female genital diversification. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Predicting ecological and phenotypic differentiation in the wild: a case of piscivorous fish in a fishless environment

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 114(3), 588–607.

By: R. Martin n, M. McGee* & R. Langerhans n

author keywords: adaptation; feeding performance; functional morphology; geometric morphometrics; individual diet specialization
TL;DR: The results of the present study suggest great potential in the ability to predict population responses to changing environments, which is an increasingly important capability in a human-dominated, ever-changing world. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Rapid human-induced divergence of life-history strategies in Bahamian livebearing fishes (family Poeciliidae)

JOURNAL OF ANIMAL ECOLOGY, 84(6), 1732–1743.

By: R. Riesch*, T. Easter n, C. Layman n & R. Langerhans n

author keywords: anthropogenic habitat modification; biodiversity; competition; conservation; Gambusia; habitat fragmentation; population density; predation
MeSH headings : Animals; Bahamas; Conservation of Natural Resources; Cyprinodontiformes / physiology; Ecosystem; Reproduction; Species Specificity
TL;DR: Whether the ecological consequences of habitat fragmentation have led to changes in the life histories of three native species of mosquitofish inhabiting tidal creeks on six different Bahamian islands is examined to suggest that phenotypic responses to HIREC can be complex, with the predictability of response varying across traits. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Tourism-related drivers of support for protection of fisheries resources on Andros Island, The Bahamas

Ocean & Coastal Management, 106, 118–123.

author keywords: Conservation; Environmental education; Fisheries; Natural resources; Protected areas; Tourism development
UN Sustainable Development Goal Categories
1. No Poverty (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, Crossref
Added: August 6, 2018

2014 journal article

A trade-off between natural and sexual selection underlies diversification of a sexual signal

BEHAVIORAL ECOLOGY, 26(2), 533–542.

author keywords: female mate choice; natural selection; Poeciliidae; predation; secondary sexual characters; sexual selection
TL;DR: This study provides direct empirical evidence documenting a trade-off between natural and sexual selection in a colorful sexual signal by employing plastic fish models to directly examine conspicuity to predators and female preferences for dorsal-fin color. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Does hydrological fragmentation affect coastal bird communities? A study from Abaco Island, The Bahamas

Wetlands Ecology and Management, 23(3), 551–557.

author keywords: Anthropogenic change; The Bahamas; Habitat alteration; Mangroves; Wetland management; Wading birds
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
14. Life Below Water (Web of Science; OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, Crossref
Added: August 6, 2018

2014 review

Ecological opportunity and the adaptive diversification of lineages

[Review of ]. ECOLOGY AND EVOLUTION, 5(1), 176–195.

By: G. Wellborn* & R. Langerhans n

author keywords: Adaptive radiation; ecological community; ecotype; niche diversification; reproductive isolation; speciation
TL;DR: A definition for ecological opportunity is proposed that provides an explicit mechanism for its action and highlights the need for greater synthesis of community ecology and evolutionary biology, unifying the four major components of the concept of ecological opportunity. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Ecosystem fragmentation drives increased diet variation in an endemic livebearing fish of the Bahamas

Ecology and Evolution, 4(16), 3298–3308.

author keywords: Bahamas mosquitofish; food webs; individual specialization; niche variation; predation; RNA/DNA ratios; stable isotopes
TL;DR: It is shown that fragmentation-induced release from predation led to increased G. hubbsi population densities, which consequently led to lower mean growth rates, likely as a result of higher intraspecific competition for food, suggesting that habitat fragmentation can greatly impact the ecology of resilient populations. (via Semantic Scholar)
Sources: Web Of Science, Crossref
Added: August 6, 2018

2014 journal article

Human-caused habitat fragmentation can drive rapid divergence of male genitalia

EVOLUTIONARY APPLICATIONS, 7(10), 1252–1267.

author keywords: anthropogenic environmental change; genital evolution; gonopodium; human-induced phenotypic change; natural selection; Poeciliidae; sexual selection
TL;DR: It is found that genital shape and allometry consistently and repeatedly diverged in fragmented systems across all species and islands, demonstrating that human modifications to the environment can drive rapid and predictable divergence in male genitalia. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2014 journal article

The oestrogen pathway underlies the evolution of exaggerated male cranial shapes in Anolis lizards

author keywords: sexual dimorphism; evo-devo; morphometrics; facial length; oestrogen signalling
MeSH headings : Androgens / genetics; Androgens / metabolism; Animals; Estrogens / genetics; Estrogens / metabolism; Hormones / genetics; Hormones / metabolism; Lizards / anatomy & histology; Lizards / genetics; Lizards / growth & development; Lizards / physiology; Male; Phenotype; Real-Time Polymerase Chain Reaction; Sex Characteristics; Skull / anatomy & histology; Skull / growth & development; Skull / physiology; Species Specificity
TL;DR: The analyses herein reveal that sex-specific regulation of the oestrogen pathway underlies evolution of this exaggerated male phenotype, rather than the androgen or insulin growth factor pathways that have long been considered the primary regulators of male-biased dimorphism among vertebrates. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Colonisation of toxic environments drives predictable life-history evolution in livebearing fishes (Poeciliidae)

ECOLOGY LETTERS, 17(1), 65–71.

author keywords: Divergent natural selection; ecological speciation; extreme environments; Gambusia; life-history evolution; phenotypic convergence; Poecilia; replicated evolution
MeSH headings : Animals; Biological Evolution; Body Size; Clutch Size; Female; Fertility; Hydrogen Sulfide / toxicity; Poecilia / physiology; Pregnancy
TL;DR: This work examines nine poeciliid species that independently colonised toxic environments, and shows that these fishes have indeed repeatedly evolved much larger offspring size at birth in sulphidic waters, thus uncovering a widespread pattern of predictable evolution. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

EVOLUTION OF MALE COLORATION DURING A POST-PLEISTOCENE RADIATION OF BAHAMAS MOSQUITOFISH (GAMBUSIA HUBBSI)

EVOLUTION, 68(2), 397–411.

author keywords: Animal communication; condition dependence; indicator traits; predation; sensory drive; sexual selection and ornamentation
MeSH headings : Animals; Body Size / genetics; Cyprinodontiformes / anatomy & histology; Cyprinodontiformes / genetics; Evolution, Molecular; Genetic Speciation; Genetic Variation; Male; Pigmentation / genetics; Selection, Genetic
TL;DR: A promising approach is illustrated for gaining a detailed understanding of the many contributing factors in the evolution of multivariate sexual signals by testing the effects of resource availability, male body size and other life‐history traits, key aspects of the transmission environment, sex ratio, and predation risk on variation in multiple male color traits of Bahamas mosquitofish inhabiting blue holes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Environmental drivers of demographics, habitat use, and behavior during a post-Pleistocene radiation of Bahamas mosquitofish (Gambusia hubbsi)

Evolutionary Ecology, 27(5), 971–991.

By: J. Heinen n, M. Coco n, M. Marcuard n, D. White n, M. Peterson n, R. Martin n, R. Langerhans n

author keywords: Adaptive radiation; Blue holes; Competition; Ecological divergence; Habitat shift; Predation
TL;DR: Variation in predation risk appears to represent the primary driver of ecological differentiation in this system, but other previously underappreciated factors (interspecific competition, resource availability) are notable contributors as well. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Sources: Web Of Science, Crossref
Added: August 6, 2018

2013 journal article

Morphological differentiation among populations of Rhinella marina (Amphibia: Anura) in western Mexico

EVOLUTIONARY ECOLOGY, 28(1), 69–88.

author keywords: Geometric morphometrics; Mark-recapture; Survival; Predation; Body shape
TL;DR: This study used the cane toad Rhinella marina to test the hypothesis that populations experiencing a higher abundance of predators should suffer higher mortality rates and exhibit morphological traits associated with enhanced locomotor performance, and found significant differences among populations in survival rates, abundance of predator, and body shape. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Predation's Role in Life-History Evolution of a Livebearing Fish and a Test of the Trexler-DeAngelis Model of Maternal Provisioning

AMERICAN NATURALIST, 181(1), 78–93.

author keywords: adaptive radiation; convergent evolution; divergent natural selection; ecological speciation; Gambusia; Poeciliidae
MeSH headings : Animals; Bahamas; Biological Evolution; Body Composition; Cyprinodontiformes / physiology; Female; Food Chain; Male; Perciformes / physiology; Reproduction; Selection, Genetic
TL;DR: This study offers strong evidence for convergent evolution of similar life histories in similar predation regimes, largely matching previous phenotypic patterns observed in other poeciliid lineages, and further supports the notion that matrotrophy is most likely to evolve in stable high-resource environments. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Sexual selection paves the road to sexual isolation during ecological speciation

Evolutionary Ecology Research, 15(6), 633–651.

By: R. Langerhans & A. Makowicz

Source: NC State University Libraries
Added: August 6, 2018

2013 journal article

Speciation by selection: A framework for understanding ecology's role in speciation

CURRENT ZOOLOGY, 59(1), 31–52.

author keywords: Speciation; Ecological speciation; Mutation order; Reinforcement; One-allele mechanism; Reproductive isolation
TL;DR: A unified framework of speciation is presented, pro- viding mechanistic descriptions of fundamentally distinct routes to speciation, and how these may interact during lineage splitting and how all three mechanisms can occur side-by-side during speciation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Gambusia quadruncus (Cyprinodontiformes: Poeciliidae): a new species of mosquitofish from east-central Mexico

JOURNAL OF FISH BIOLOGY, 81(5), 1514–1539.

author keywords: gonopodium; livebearing fishes; Panuco; speciation; Tamaulipas; Tamesi
MeSH headings : Animal Fins / anatomy & histology; Animals; Body Size; Cyprinodontiformes / anatomy & histology; Cyprinodontiformes / classification; Cyprinodontiformes / genetics; DNA, Mitochondrial / genetics; Female; Gonads / anatomy & histology; Introns / genetics; Male; Mexico; Molecular Sequence Data; Phylogeny; Principal Component Analysis; Ribosomal Proteins / genetics; Species Specificity
TL;DR: Combined analysis of mitochondrial and nuclear gene sequence data indicates reciprocal monophyly of G. quadruncus and its sister species G. affinis, with levels of genetic divergence suggesting the two species diverged from one another over a million years ago. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2011 journal article

Shared and Unique Patterns of Embryo Development in Extremophile Poeciliids

PLOS ONE, 6(11).

MeSH headings : Adaptation, Physiological; Animals; Ecosystem; Embryonic Development; Hydrogen Sulfide; Phenotype; Poecilia / anatomy & histology; Poecilia / embryology
TL;DR: The results clearly demonstrate that even among sister taxa convergence in phenotypic traits is not always achieved by the same processes during embryo development, and discusses how the apparent ability of cave mollies to overcome this carotenoid-dependency may represent another potential mechanism explaining the lack of gene flow between surface and cave molls. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2010 article

Predicting Evolution with Generalized Models of Divergent Selection: A Case Study with Poeciliid Fish

Langerhans, R. B. (2010, December). INTEGRATIVE AND COMPARATIVE BIOLOGY, Vol. 50, pp. 1167–1184.

MeSH headings : Animals; Biological Evolution; Cyprinodontiformes / anatomy & histology; Cyprinodontiformes / genetics; Cyprinodontiformes / physiology; Female; Food Chain; Male; Models, Biological; Selection, Genetic; Swimming; Zoology / methods
TL;DR: The GMDS approach appears to represent a promising method of addressing the predictability of evolution and identifying environmental factors responsible for driving major patterns of replicated evolution. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Ecological correlates of risk and incidence of West Nile virus in the United States

Oecologia, 158(4), 699–708.

By: B. Allan*, R. Langerhans*, W. Ryberg*, W. Landesman*, N. Griffin*, R. Katz n, B. Oberle*, M. Schutzenhofer* ...

author keywords: Dilution effect; Disease ecology; Emerging infectious diseases; Ecosystem service
MeSH headings : Animals; Biodiversity; Birds / virology; Disease Outbreaks; Humans; Incidence; Population Density; Risk Assessment; United States; West Nile Fever / epidemiology; West Nile Fever / transmission; West Nile Fever / virology; West Nile virus / isolation & purification
TL;DR: Prevalence of West Nile virus infection in mosquito vectors and in humans increased with decreasing bird diversity and with increasing reservoir competence of the bird community, and the results suggest that conservation of avian diversity might help ameliorate the currentWest Nile virus epidemic in the USA. (via Semantic Scholar)
Sources: Crossref, Web Of Science
Added: August 6, 2018

2005 journal article

Male genital size reflects a tradeoff between attracting mates and avoiding predators in two live-bearing fish species

Proceedings of the National Academy of Sciences, 102(21), 7618–7623.

By: R. Langerhans*, C. Layman* & T. DeWitt*

author keywords: fitness tradeoff; genital evolution; mate choice; natural selection; sexual selection
MeSH headings : Analysis of Variance; Animals; Bahamas; Body Weights and Measures; Cyprinodontiformes / anatomy & histology; Cyprinodontiformes / physiology; Food Chain; Genitalia, Male / anatomy & histology; Male; Selection, Genetic; Sex Factors; Sexual Behavior, Animal; Swimming / physiology; Texas
TL;DR: Although postmating sexual selection is widely presumed to be the most important mechanism driving genital diversification, these findings suggest that alternative mechanisms, particularly for organisms that cannot retract their genitalia, may also prove important. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Crossref
Added: June 6, 2020

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