Long-distance dispersal over land by fishes: extremely rare ecological events become probable over millennial timescales

Martin, Christopher H.; Turner, Bruce J.

doi:10.1098/rspb.2017.2436

Cited by 9 publications

(12 citation statements)

References 44 publications

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“…Therefore, we conclude that high β-diversity maybe the natural conditions at least in the initial phases of the succession in lakes. Similar to islands, the chances of fishes to naturally colonize isolated freshwater habitats are low (Scheffer et al , 2006; Strona et al , 2012) and often limited to rare events like massive floods (Pont et al , 1991; Olden et al , 2010), fish rain (Bajkov, 1949) and less likely bird-based dispersal (Riehl, 1991; Hirsch et al , 2018; Martin & Turner, 2018). A further colonization mechanism identified in our work encompasses uncontrolled anthropogenic events, such aquarium, garden pond and bait bucket releases (Padilla & Williams, 2004; Copp et al , 2005a; Hirsch et al , 2018).…”

Section: Discussionmentioning

confidence: 99%

Impact of recreational fisheries management on fish biodiversity in gravel pit lakes with contrasts to unmanaged lakes

Matern

Emmrich²,

Klefoth³

et al. 2018

Preprint

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20Gravel pit lakes constitute novel ecosystems that can be colonized by fishes through 21 natural or anthropogenic pathways. Many of these man-made lakes are used by 22 recreational anglers and experience regular fish stocking. Recreationally unmanaged 23 gravel pits may also be affected by fish introductions, e.g., through illegal fish 24 releases, thereby contributing to the formation of site-specific communities. Our 25 objective was to compare the fish biodiversity in gravel pit lakes with and without the 26 recent influence of recreational fisheries management. We sampled 23 small (< 20 27 ha) gravel pit lakes (16 managed and 7 unmanaged) in north-western Germany and 28 compared fish community and diversity metrics obtained using littoral electrofishing 29 and multimesh gillnet catch per unit effort data. Given the size of the lakes we 30 sampled we expected species poor communities and elevated fish diversity in the 31 managed systems due to stocking. The two lake types were primarily mesotrophic 32 and did not differ in key abiotic and biotic environmental characteristics. Both lakes 33 types hosted similar fish abundance and biomass, but were substantially different in 34 terms of the fish community structure and species richness. Fish were present in all 35 lakes with at least three species. We discovered a higher α-diversity and a lower β-36 diversity in managed gravel pit lakes compared to unmanaged lakes. Thus, 37 recreational fisheries management appeared to foster homogenization of fish 38 communities, likely because fisheries managers stock these lakes with desired fish 39 species (e.g., piscivorous fishes and large bodied cyprinids). However, we also 40 detected anthropogenic pathways in the colonization of unmanaged gravel pit lakes, 41 presumably from illegal releases by private people. Importantly, hardly any non-42 native species were detected in the gravel pits we studied, suggesting that 43 recreational fisheries management not necessarily promotes the spread of exotic 44 species. 45 Fish conservation; novel ecosystems; non-native species; fish stocking; recreational 47 fishing; fish community composition 48 49 Significance Statement 50 3Little is known about fish communities in artificially created gravel pit lakes. We 51 compared those managed by recreational fishers with those lacking fisheries 52 management in north-western Germany. We found fishes in all gravel pit lakes and 53 demonstrated a higher α-diversity but more homogenized fish communities in 54 managed gravel pit lakes compared to unmanaged lakes. We did not detect the 55 establishment of relevant abundances of non-natives fishes despite intensive 56 fisheries management. 57 58

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Section: Discussionmentioning

confidence: 99%

Impact of recreational fisheries management on fish biodiversity in gravel pit lakes with contrasts to unmanaged lakes

Matern

Emmrich²,

Klefoth³

et al. 2018

Preprint

View full text Add to dashboard Cite

show abstract

“…A second category includes variations caused by behavioral processes, such as ballooning (Bishop, 1990) or various forms of group or clump dispersal (Soubeyrand et al ., 2015). And finally, a third category encompasses variations related to dispersal by animal vectors (Yamazaki et al ., 2016; Martin & Turner, 2018) or human-driven dispersal (through ballast waters for instance, see Carlton & Cohen, 2003). All three categories of phenomena are known to result in variable dispersal rates, in the form of random fluctuations (Yamazaki et al ., 2016), intermittent flows (Hewitt, 2000; Keyse et al ., 2018) or episodic bursts of migration (Peacock & Smith, 1997; Reed et al ., 1988; Carlton & Cohen, 2003; Reiners & Driese, 2004; Morris-Pocock et al ., 2016).…”

Section: Introductionmentioning

confidence: 99%

“…All three categories of phenomena are known to result in variable dispersal rates, in the form of random fluctuations (Yamazaki et al ., 2016), intermittent flows (Hewitt, 2000; Keyse et al ., 2018) or episodic bursts of migration (Peacock & Smith, 1997; Reed et al ., 1988; Carlton & Cohen, 2003; Reiners & Driese, 2004; Morris-Pocock et al ., 2016). The latter form is particularly common and is often referred to as “pulsed migration” (Boedeltje et al ., 2004; Bobadilla & Santelices, 2005; Folinsbee & Brooks, 2007; Smith et al ., 2018; Martin & Turner, 2018).…”

Section: Introductionmentioning

confidence: 99%

Migration pulsedness alters patterns of allele fixation and local adaptation in a mainland-island model

Aubree

Calcagno

et al. 2021

Preprint

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Gene flow, through allele migration and spread, is critical in determining patterns of population genetic structure, divergence and local adaptation. While evolutionary theory has typically envisioned gene flow as a continuous connection among populations, many processes can render it fluctuating and intermittent. We analyze mathematically a stochastic mainland-island model in continuous time, in which migration occur as recurrent “pulses”. We derive simple analytical approximations regarding how migration pulsedness affects the effective migration rates across a range of selection and dominance scenarios. Predictions are validated with stochastic simulations and summarized with graphical interpretations in terms of fixation probabilities. We show that migration pulsedness can decrease or increase gene flow, respectively above or below a selection threshold that is for additive alleles and lower for recessive deleterious alleles. We propose that pulsedness may leave a genomic detectable signature, by differentially affecting the fixation rates of loci subjected to different selection regimes. The additional migration created by pulsedness is called a “pulsedness” load. Our results indicate that migration pulsedness, and more broadly temporally variable migration, is important to consider for evolutionary and population genetics predictions. Specifically, it would overall be detrimental to the local adaptation and persistence of small peripheral populations.

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“…For more than a century, long-distance dispersal (LDD) among presumably isolated populations has intrigued biologists [1,2]. Historically considered rare and unpredictable, the idea that LDD can act as a general mechanism influencing the biogeography of presumably dispersal-limited, macroscopic organisms has gained traction in recent years, with examples accumulating for both plants [3] and invertebrates [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Long-distance dispersal, ice sheet dynamics and mountaintop isolation underlie the genetic structure of glacier ice worms

et al. 2019

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Disentangling the contemporary and historical factors underlying the spatial distributions of species is a central goal of biogeography. For species with broad distributions but little capacity to actively disperse, disconnected geographical distributions highlight the potential influence of passive, long-distance dispersal (LDD) on their evolutionary histories. However, dispersal alone cannot completely account for the biogeography of any species, and other factors—e.g. habitat suitability, life history—must also be considered. North American ice worms ( Mesenchytraeus solifugus ) are ice-obligate annelids that inhabit coastal glaciers from Oregon to Alaska. Previous studies identified a complex biogeographic history for ice worms, with evidence for genetic isolation, unexpectedly close relationships among geographically disjunct lineages, and contemporary migration across large (e.g. greater than 1500 km) areas of unsuitable habitat. In this study, we analysed genome-scale sequence data for individuals from most of the known ice worm range. We found clear support for divergence between populations along the Pacific Coast and the inland flanks of the Coast Mountains (mean F ST = 0.60), likely precipitated by episodic ice sheet expansion and contraction during the Pleistocene. We also found support for LDD of ice worms from Alaska to Vancouver Island, perhaps mediated by migrating birds. Our results highlight the power of genomic data for disentangling complex biogeographic patterns, including the presence of LDD.

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Long-distance dispersal over land by fishes: extremely rare ecological events become probable over millennial timescales

Abstract: Long-distance dispersal over land by fishes: extremely rare ecological events become probable over millennial timescales.

Cited by 9 publications

References 44 publications

Impact of recreational fisheries management on fish biodiversity in gravel pit lakes with contrasts to unmanaged lakes

Impact of recreational fisheries management on fish biodiversity in gravel pit lakes with contrasts to unmanaged lakes

Migration pulsedness alters patterns of allele fixation and local adaptation in a mainland-island model

Long-distance dispersal, ice sheet dynamics and mountaintop isolation underlie the genetic structure of glacier ice worms

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