Biogeography of the Macrhybopsis aestivalis complex (Teleostei: Cyprinidae): emphasis on speciation and ancient heterospecific mitochondrial transfer

Hoagstrom, Christopher W.; Echelle, Anthony A.

doi:10.1007/s10641-022-01220-0

Cited by 5 publications

(5 citation statements)

References 143 publications

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“…Regardless of which is the case, these findings suggest that preservation of longitudinal connectivity is important for population processes and supports previous relationships between Silver Chub ecology and habitat fragmentation (Perkin and Gido 2011;Perkin et al 2015aPerkin et al , 2015b. Ultimately, our work demonstrates that Silver Chub populations benefit from the same longitudinal other of the genus Macrhybopsis are known to require (Luttrell et al 1999;Perkin et al Hoagstrom et al 2015;Mollenhauer et al 2021), even though Silver Chub may be distantly related to congeners (Hoagstrom and Echelle 2022). Fish populations and communities in the Midwestern United States evolved under longitudinally connected riverscape conditions (Dodds et al 2004;Thorp et al 2021), but human pursuit of water security has resulted in widespread fragmentation of these ecosystems (Perkin et al 2015a).…”

Section: Parametersupporting

confidence: 85%

Why are larger fish farther upstream? Testing multiple hypotheses using Silver Chub in two Midwestern United States riverscapes

Perkin,

Kočovský,

Steffensmeier

et al. 2023

N American J Fish Manag

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ObjectiveThree competing hypotheses might explain the widely documented intrapopulation larger‐fish‐upstream phenomenon. The age‐phased recruitment hypothesis posits that fish spawn downstream and move upstream as they age and grow, the static population with growth and mortality gradients hypothesis posits that fish spawn throughout a riverscape and growth is greater upstream while recruitment is greater downstream, and the colonization cycle hypothesis posits that fish spawn upstream, larvae drift downstream, and individuals move upstream as they age and grow.MethodsWe tested for the larger‐fish‐upstream pattern using populations of Silver Chub Macrhybopsis storeriana in the Arkansas and Ohio rivers, as well as investigated longitudinal variation in reproductive investment (Arkansas River), age structure for adult fish (Arkansas River), and number and occurrence of age‐0 fish (Ohio River).ResultThe larger‐fish‐upstream pattern was temporally persistent in both riverscapes. In the Arkansas River, reproductive investment was greatest upstream, where initiation of spawning likely occurred based on gonadosomatic indices. Adult fish were most numerous in the Arkansas River 125–175 km upstream from Kaw Reservoir, with age‐2 fish numbers peaking farther upstream compared with age‐1 fish. In the Ohio River, age‐0 fish counts increased downstream and were rare among the shortest river fragments (<100 km) between lock‐and‐dam structures. These findings are inconsistent with the age‐phased recruitment hypothesis based on upstream spawning in the Arkansas River and inconsistent with the static population with growth and mortality gradients hypothesis based on virtual absence of age‐2 fish downstream (Arkansas River) and age‐0 fish upstream (Ohio River). The most likely explanation for longitudinal variation in Silver Chub size distribution is downstream drift of ichthyoplankton followed by net upstream movement (i.e., colonization cycle hypothesis), but formal assessments of movement and ova characteristics require more research.ConclusionManaging multidimensional riverscapes requires insight into the mechanisms that regulate upstream‐to‐downstream patterns in fish populations, and our work underscores a potential size‐related benefit to maintaining broadscale longitudinal connectivity.

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Section: Parametersupporting

confidence: 85%

Why are larger fish farther upstream? Testing multiple hypotheses using Silver Chub in two Midwestern United States riverscapes

Perkin,

Kočovský,

Steffensmeier

et al. 2023

N American J Fish Manag

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“…We expected periods of climatic cooling to facilitate temperate species invading tropical habitats (into-the-tropics hypothesis, Meseguer & Condamine, 2020). Finally, our scenario maintained geographical consistency and compatibility across the phylogeny (Hoagstrom & Echelle, 2022).…”

Section: Discusionmentioning

confidence: 77%

Historical biogeography of New World Killifishes (Cyprinodontiformes: Funduloidea) recapitulates geographical history in the Gulf of México watershed

Hernández,

Hoagstrom,

Matamoros

2023

Preprint

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We reconstructed the phylogenetic relationships of superfamily Funduloidea with a synthesis of its biogeographic history. We used DNA sequences from five genes for 135 species, with four fossil calibrations, to generate a time-calibrated phylogeny. We estimated diversification rates, ancestral areas (Nearctic or Neotropical), and ancestral habitat (coastal or upland), for each node. Our results suggest that Funduloidea originated in the Late Cretaceous and diversified from Late Paleocene to present at a uniform rate, except Cyprinodontidae expressed an accelerated rate of speciation ~11.02 Ma. Neither viviparity, marine-to-freshwater transition, consistently accelerated speciation. Funduloidea has a coastal origin, but invaded inland many times. Funduloidea phylogeny indicates, sea-level falls isolate coastal populations, but increase island accessibility and climatic cooling facilitates invasions of temperate species into the tropics. For continental lineages, ancient river drainages accord with lineage distributions, including enigmatic disjunctions in Goodeidae andFundulus. Niche shifts occurred from estuaries to open coasts and from forests to grasslands. Antiquity, adaptability, and dynamic geography can explain Funduloidea diversity. Combined environmental and phylogenetic data unveil the history of the Gulf of México watershed. Phylogeny suggests there was diversification by barrier displacement and coastal speciation pump. Overall, speciation time, transitions to freshwater, dispersal, vicariance, adaptive radiation, and viviparity contributed to total diversification.

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“…However, using new technology in the form of single nucleotide polymorphisms, Sotola et al (2019) discovered a large hybridization and introgression zone in the area just upstream of Lake Texoma, and this zone was the focus of biological interactions in the current study. The most recent hypothesized phylogenetic relationships among Macrhybopsis fishes posits that Prairie Chub and Shoal Chub evolved allopatrically and that the hybridization and introgression zone in the upper Red River is the consequence of secondary contact (Hoagstrom and Echelle 2022). However, Sotola et al (2019) found evidence that isolation between Prairie Chub and Shoal Chub was supported by ecological responses to salinity gradients in the upper Red River, with Prairie Chub being relatively more tolerant of higher salinities (though an upper tolerance threshold likely exists; Ruppel et al 2020).…”

Section: Discussionmentioning

confidence: 99%

“…For other fishes threatened by the combined effects of habitat loss and introgression, these threats each operate from upstream and downstream directions to squeeze out threatened species (e.g., Parker et al 2021). The hybridization and introgression zone for Prairie Chub and Shoal Chub is considered natural (Hoagstrom and Echelle 2022), but it is possible that the zone is maintained by environmental gradients that prevent the upstream expansion of Shoal Chub. Sotola et al (2019) found evidence that a water salinity gradient might be contributing to minimal overlap between the two species.…”

Section: Management and Conservation Implicationsmentioning

confidence: 99%

Conservation at the nexus of niches: Multidimensional niche modeling to improve management of Prairie Chub

Steffensmeier

Brewer

Wedgeworth

et al. 2023

N American J Fish Manag

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ObjectiveA central challenge in applied ecology is understanding how organisms are spatially and temporally distributed and how management might be tailored to maintain or restore species distributions. The niche concept is central to understanding species distributions, but the diversity of niche definitions requires that multiple dimensions be considered. For example, the Grinnellian niche concept focuses on environmental conditions that allow species to persist, the Eltonian niche concept stresses the influence of biotic interactions, and the fundamental niche concept considers both abiotic and biotic environmental features to define spaces that organisms could occupy.MethodsWe combined abiotic (A), biotic (B), and movement (M) information (collectively, BAM model) to map the multidimensional niche of Prairie Chub Macrhybopsis australis, a regionally endemic freshwater fish currently under review for listing under the Endangered Species Act. We estimated A using remotely sensed environmental riverscape variables, B using the spatial distribution of a hybridization zone between Prairie Chub and Shoal Chub M. hyostoma, and M using data from a mark–recapture study.ResultThe BAM model estimated the spatial extent of multiple niches, including the Grinnellian (A; extent = 944 km of river), Eltonian (B; 2974 km), and fundamental niche (overlap of A + B; 645 km) niches. When A, B, and M components were combined, the estimated extent of the Prairie Chub niche was 645 km.ConclusionOur work shows that the realized, multidimensional niche of Prairie Chub includes medium to large rivers with high habitat connectivity in the upper–middle Red River basin upstream of the distribution of Shoal Chub. The current Prairie Chub distribution could be maintained by preventing further habitat fragmentation and maintaining the environmental gradient separating Prairie Chub from Shoal Chub. Expansion of the species distribution may be possible through restoration of longitudinal fluvial connectivity.

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Biogeography of the Macrhybopsis aestivalis complex (Teleostei: Cyprinidae): emphasis on speciation and ancient heterospecific mitochondrial transfer

Cited by 5 publications

References 143 publications

Why are larger fish farther upstream? Testing multiple hypotheses using Silver Chub in two Midwestern United States riverscapes

Why are larger fish farther upstream? Testing multiple hypotheses using Silver Chub in two Midwestern United States riverscapes

Historical biogeography of New World Killifishes (Cyprinodontiformes: Funduloidea) recapitulates geographical history in the Gulf of México watershed

Conservation at the nexus of niches: Multidimensional niche modeling to improve management of Prairie Chub

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