Effects of invasive American signal crayfish (Pacifastacus leniusculus) on the reproductive behaviour of threespine stickleback (Gasterosteus aculeatus) sympatric species pairs

2012 ◽  
Vol 90 (11) ◽  
pp. 1328-1338 ◽  
Author(s):  
G.J. Velema ◽  
J.S. Rosenfeld ◽  
E.B. Taylor
Keyword(s):  
Invasive Species ◽  
Gasterosteus Aculeatus ◽  
Introgressive Hybridization ◽  
Reproductive Behaviour ◽  
Threespine Stickleback ◽  
Pacifastacus Leniusculus ◽  
Male Reproductive Success ◽  
Species Pair ◽  
Freshwater Biodiversity ◽  
Signal Crayfish

Environmental change, including that caused directly or indirectly by invasive species, presents a major threat to the persistence of native freshwater biodiversity. The invasive American signal crayfish ( Pacifastacus leniusculus (Dana, 1852)) has recently been implicated in the collapse of a pair of threespine stickleback ( Gasterosteus aculeatus L., 1758) species in Enos Lake, British Columbia, through introgressive hybridization; yet there are few data describing potential interactions between crayfish and these recently evolved stickleback species. We conducted a behavioural study, using an intact sympatric G. aculeatus species pair from a nearby lake, to examine if and how interactions with P. leniusculus may influence the breeding behaviour of sticklebacks. We found that the reproductive behaviour of limnetic males was disrupted to a greater degree than that of benthic males, suggesting that crayfish may disproportionately impact limnetic male reproductive success and may have contributed to biased hybridization between the Enos Lake species pair. Our study illustrates how newly differentiated taxa may be especially susceptible to environmental perturbations, particularly those caused by invasive species.

scholarly journals Environmental determinants of threespine stickleback species pair evolution and persistence

2011 ◽  
Vol 68 (11) ◽  
pp. 1983-1997 ◽  
Author(s):  
Chad I. Ormond ◽  
Jordan S. Rosenfeld ◽  
Eric B. Taylor
Keyword(s):  
Gasterosteus Aculeatus ◽  
Character Displacement ◽  
Threespine Stickleback ◽  
Physical Habitat ◽  
Species Pair ◽  
Trophic Resources ◽  
Species Pairs ◽  
Resource Requirements ◽  
Abiotic And Biotic Factors ◽  
Species At Risk Act

Threespine stickleback ( Gasterosteus aculeatus ) species pairs are found in four watersheds in southwestern British Columbia, Canada, and are listed as Endangered under the federal Species at Risk Act. Their origin is thought to be through a double-invasion process followed by character displacement; however, this hypothesis does not consider whether speciation is dependent on unique environmental factors necessary to support two species with separate habitat and resource requirements, which may be essential both for their evolution and persistence. To test whether species pair lakes have unique attributes, we compared abiotic and biotic factors of species pair lakes to lakes with only a single population of stickleback. There were no clear environmental differences between species pair and non-species pair lakes, but species pairs were only present in lakes with low fish species diversity, suggesting that evolution and persistence of species pairs requires a simplified fish community. Our study suggests that colonization history rather than unique lake attributes (related to either physical habitat or trophic resources) facilitated the evolution of stickleback species pairs and that the fish assemblage in lakes may affect resource availability and speciation potential as strongly as the limnological attributes of the lakes themselves.

scholarly journals Ocurrence of the invasive species Pacifastacus leniusculus (Dana, 1852) (Decapoda, Astacidae) in the Segura River Basin (SE, Spain)

2016 ◽  
pp. 119-122
Author(s):  
José Manuel Zamora-Marín ◽  
Antonio Zamora-López ◽  
Mar Torralva ◽  
Francisco José Oliva-Paterna
Keyword(s):  
Invasive Species ◽  
River Basin ◽  
Native Species ◽  
Pacifastacus Leniusculus ◽  
Environmental Implications ◽  
Se Spain ◽  
Signal Crayfish ◽  
Del Rio ◽  
First Time

Se detecta por primera vez en noviembre de 2015 la presencia del cangrejo señal, Pacifastacus leniusculus (Dana, 1852), en la Cuenca del río Segura. Esta introducción, probablemente, es resultado de una liberación intencionada o negligente realizada por particulares. La expansión de la especie podría tener serias implicaciones medioambientales, a tenor de los graves impactos sobre el hábitat y las especies nativas que el cangrejo señal ha tenido en muchas otras regiones. The occurrence of the signal crayfish, Pacifastacus leniusculus (Dana, 1852) in the Segura River Basin was detected for the first time in November 2015. Its presence is probably consequence of a deliberate or neglected introduction carried out by citizens. If it expanded in the Segura Basin, the signal crayfish could have serious environmental implications, based on the severe impacts on habitats and native species reported in other regions.

Ecological predictions lead to the discovery of a benthic–limnetic sympatric species pair of threespine stickleback in Little Quarry Lake, British Columbia

2008 ◽  
Vol 86 (6) ◽  
pp. 564-571 ◽  
Author(s):  
J. L. Gow ◽  
S. M. Rogers ◽  
M. Jackson ◽  
D. Schluter
Keyword(s):  
British Columbia ◽  
Gasterosteus Aculeatus ◽  
Ecological Factors ◽  
Morphological Differentiation ◽  
Sympatric Species ◽  
Threespine Stickleback ◽  
Genetic Admixture ◽  
Species Pair ◽  
Species Pairs ◽  
Quarry Lake

Sympatric species pairs of benthic and limnetic threespine stickleback ( Gasterosteus aculeatus L., 1758 complex) are an important example of the role of ecology in speciation in nature. Four endemic pairs are known and each appears to have diverged independently as a consequence of adaptation to alternative environments. Using specific ecological and physical attributes hypothesized to be important to their evolution, we focused a search for further species pairs. Now, two decades after the last discovery, we describe another benthic–limnetic species pair from Little Quarry Lake on Nelson Island, British Columbia, Canada. Bimodality of genetic admixture values provides evidence of strong reproductive isolation between two morphological and genetic clusters, supporting the existence of a sympatric species pair within this lake. Close correspondence in shape to extant benthic and limnetic species pairs confirm their status as such. The remarkable similarity between them and other benthic and limnetic species pairs in levels of morphological differentiation, as well as extent of admixture and hybridization, points to similar processes underlying their origin. This discovery serves as an important reminder of the specificity of ecological factors that promote and maintain biodiversity, as well as the value of habitat conservation.

Modulation of endogenous antioxidants by zinc and copper in signal crayfish (Pacifastacus leniusculus)

Chemosphere ◽  
2021 ◽  
pp. 129982
Author(s):  
Mark P. Gunderson ◽  
Hailey M. Boyd ◽  
Courtney I. Kelly ◽  
Isabela R. Lete ◽  
Quinlan R. McLaughlin
Keyword(s):  
Pacifastacus Leniusculus ◽  
Signal Crayfish ◽  
Endogenous Antioxidants

scholarly journals Diversity and sexual dimorphism in the head lateral line system in North Sea populations of threespine sticklebacks, Gasterosteus aculeatus (Teleostei: Gasterosteidae)

Zoomorphology ◽  
2020 ◽  
Author(s):  
Harald Ahnelt ◽  
David Ramler ◽  
Maria Ø. Madsen ◽  
Lasse F. Jensen ◽  
Sonja Windhager
Keyword(s):  
Sexual Dimorphism ◽  
North Sea ◽  
Lateral Line ◽  
Gasterosteus Aculeatus ◽  
Sensory System ◽  
Threespine Stickleback ◽  
Lateral Line System ◽  
Line System ◽  
Marine Population ◽  
Threespine Sticklebacks

AbstractThe mechanosensory lateral line of fishes is a flow sensing system and supports a number of behaviors, e.g. prey detection, schooling or position holding in water currents. Differences in the neuromast pattern of this sensory system reflect adaptation to divergent ecological constraints. The threespine stickleback, Gasterosteus aculeatus, is known for its ecological plasticity resulting in three major ecotypes, a marine type, a migrating anadromous type and a resident freshwater type. We provide the first comparative study of the pattern of the head lateral line system of North Sea populations representing these three ecotypes including a brackish spawning population. We found no distinct difference in the pattern of the head lateral line system between the three ecotypes but significant differences in neuromast numbers. The anadromous and the brackish populations had distinctly less neuromasts than their freshwater and marine conspecifics. This difference in neuromast number between marine and anadromous threespine stickleback points to differences in swimming behavior. We also found sexual dimorphism in neuromast number with males having more neuromasts than females in the anadromous, brackish and the freshwater populations. But no such dimorphism occurred in the marine population. Our results suggest that the head lateral line of the three ecotypes is under divergent hydrodynamic constraints. Additionally, sexual dimorphism points to divergent niche partitioning of males and females in the anadromous and freshwater but not in the marine populations. Our findings imply careful sampling as an important prerequisite to discern especially between anadromous and marine threespine sticklebacks.

scholarly journals Effects of parasites upon non-host predator avoidance behaviour in native and invasive gammarids

Parasitology ◽  
2020 ◽  
pp. 1-7
Author(s):  
Sajad Farahani ◽  
Per J. Palsbøll ◽  
Ido Pen ◽  
Jan Komdeur
Keyword(s):  
Invasive Species ◽  
Definitive Host ◽  
Predator Avoidance ◽  
Gasterosteus Aculeatus ◽  
Chemical Cues ◽  
Critical Role ◽  
Fundamental Question ◽  
Intermediate Hosts ◽  
Gammarus Fossarum ◽  
Acanthocephalan Parasite

Abstract The acanthocephalan parasite, Polymorphus minutus, manipulates its intermediate hosts' (gammarids) behaviour, presumably to facilitate its transmission to the definitive hosts. A fundamental question is whether this capability has evolved to target gammarids in general, or specifically sympatric gammarids. We assessed the responses to chemical cues from a non-host predator (the three-spined sticklebacks Gasterosteus aculeatus) in infected and non-infected gammarids; two native (Gammarus pulex and Gammarus fossarum), and one invasive (Echinogammarus berilloni) species, all sampled in the Paderborn Plateau (Germany). The level of predator avoidance was assessed by subjecting gammarids to choice experiments with the presence or absence of predator chemical cues. We did not detect any behavioural differences between uninfected and infected G. pulex and E. berilloni, but an elevated degree of predator avoidance in infected G. fossarum. Avoiding non-host predators may ultimately increase the probability of P. minutus' of predation by the definitive host. Our results suggested that P. minutus' ability to alter the host's behaviour may have evolved to specifically target sympatric gammarid host species. Uninfected gammarids did not appear to avoid the non-host predator chemical cues. Overall the results also opened the possibility that parasites may play a critical role in the success or failure of invasive species.

Responses of threespine stickleback (Gasterosteus aculeatus, L) transcriptome to hypoxia

2011 ◽  
Vol 6 (4) ◽  
pp. 370-381 ◽  
Author(s):  
L. Leveelahti ◽  
P. Leskinen ◽  
E.H. Leder ◽  
W. Waser ◽  
M. Nikinmaa
Keyword(s):  
Gasterosteus Aculeatus ◽  
Threespine Stickleback

scholarly journals Heritability of DNA methylation in threespine stickleback (Gasterosteus aculeatus)

Genetics ◽  
2021 ◽  
Vol 217 (1) ◽  
Author(s):  
Juntao Hu ◽  
Sara J S Wuitchik ◽  
Tegan N Barry ◽  
Heather A Jamniczky ◽  
Sean M Rogers ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Genetic Architecture ◽  
Gasterosteus Aculeatus ◽  
Additive Genetic Variance ◽  
Natural Populations ◽  
Threespine Stickleback ◽  
Phenotypic Change ◽  
Cpg Sites ◽  
Cis And Trans ◽  
Methylation Variation

Abstract Epigenetic mechanisms underlying phenotypic change are hypothesized to contribute to population persistence and adaptation in the face of environmental change. To date, few studies have explored the heritability of intergenerationally stable methylation levels in natural populations, and little is known about the relative contribution of cis- and trans-regulatory changes to methylation variation. Here, we explore the heritability of DNA methylation, and conduct methylation quantitative trait loci (meQTLs) analysis to investigate the genetic architecture underlying methylation variation between marine and freshwater ecotypes of threespine stickleback (Gasterosteus aculeatus). We quantitatively measured genome-wide DNA methylation in fin tissue using reduced representation bisulfite sequencing of F1 and F2 crosses, and their marine and freshwater source populations. We identified cytosines (CpG sites) that exhibited stable methylation levels across generations. We found that additive genetic variance explained an average of 24–35% of the methylation variance, with a number of CpG sites possibly autonomous from genetic control. We also detected both cis- and trans-meQTLs, with only trans-meQTLs overlapping with previously identified genomic regions of high differentiation between marine and freshwater ecotypes. Finally, we identified the genetic architecture underlying two key CpG sites that were differentially methylated between ecotypes. These findings demonstrate a potential role for DNA methylation in facilitating adaptation to divergent environments and improve our understanding of the heritable basis of population epigenomic variation.

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