Complex genetic patterns and distribution limits mediated by native congeners of the worldwide invasive red‐eared slider turtle

Espindola, Sayra; Vázquez‐Domínguez, Ella; Nakamura, Miguel; Osorio‐Olvera, Luis; Martínez‐Meyer, Enrique; Myers, Edward A.; Overcast, Isaac; Reid, Brendan N.; Burbrink, Frank T.

doi:10.1111/mec.16356

Cited by 7 publications

(2 citation statements)

References 91 publications

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“…These findings suggest that if we can account for variance occurring at local scales, then niche centroid relationships occurring at regional scales may become more apparent. Local biotic interactions may play an important role in refining these relationships if the species involved occupy increasingly similar niche space and compete for shared resources (Espindola et al., 2022). Novel biotic interactions due to exotic species introductions or intersecting ranges due to climate change may thus alter measured historic abundance niche‐centre relationships.…”

Section: Introductionmentioning

confidence: 99%

Niche overlap with an exotic competitor mediates the abundant niche‐centre relationship for a native lady beetle

Petersen,

Losey

2024

Diversity and Distributions

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AimThe abundant niche‐centre hypothesis has been used to describe patterns of species abundance relative to position in ecological niche space. Such relationships, however, are inconsistently recovered and may be obscured due to non‐equilibrium distributions, such as those caused novel interactions with exotic species. Here, we explore patterns of fitness for the nine‐spotted lady (Coccinella novemnotata) following the introduction of an exotic competitor, the seven‐spotted lady beetle (C. septempunctata). We examine how niche overlap between species may be causing a range reduction for C. novemnotata through a modified abundant niche‐centre relationship.LocationNorth America.MethodsWe applied a time‐oriented view of the abundant niche‐centre relationship for C. novemnotata, both before and after the introduction of C. septempunctata. We tested for both niche overlap and correlation between C. novemnotata body size (i.e. fitness) and the distance from its niche centroid relative to the invasion status of C. septempunctata.ResultsThe current niche space currently occupied by C. novemnotata is equivalent to its historic niche but has shifted to avoid overlap with C. septempunctata. A historic abundant niche‐centre relationship with larger individuals closer to the niche centroid was observed for C. novemnotata. However, this pattern changed to have smaller beetles near the niche centroid when the current distribution was considered.Main ConclusionsFitness patterns displayed by C. novemnotata are effectively described by the abundant niche‐centre hypothesis. However, this relationship was modified with the introduction of C. septempunctata. Coccinella novemnotata is not excluded from previously suitable areas that correspond to niche space nearest to its niche centroid. Abundant niche‐centre relationships may provide strong predictions of species' fitness across a species geographic range; however, these relationships may be obscured by novel pressures resulting in non‐equilibrium states.

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Section: Introductionmentioning

confidence: 99%

Niche overlap with an exotic competitor mediates the abundant niche‐centre relationship for a native lady beetle

Petersen,

Losey

2024

Diversity and Distributions

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“…However, how does a native turtle species such as Mauremys leprosa respond to a highly invasive and competitive species such as Trachemys scripta elegans at larger spatial scales and in multiple niche dimensions in human-altered environments? Existing evidence suggests that niche overlap is likely to be important for answering this question [52][53][54][55]. The main goal of this study was to analyze the factors determining the coexistence of M. leprosa and T. s. elegans in a coastal wetland heavily modified by human activity (Llobregat Delta, Spain).…”

Section: Introductionmentioning

confidence: 99%

Coexistence of Native and Invasive Freshwater Turtles: The Llobregat Delta (NE Iberian Peninsula) as a Case Study

Franch

Llorente

Rieradevall

et al. 2022

Land

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The global degradation of wetlands is increasing their susceptibility to invasions, which is greatly determined by a niche overlap between native and invasive species. We analyze its role in regulating the coexistence of the native Mediterranean stripe-necked terrapin Mauremys leprosa and the invasive Red-eared Slider Trachemys scripta elegans in a coastal wetland. We analyzed both water chemistry and landscape attributes, using variance-partitioning analysis to isolate the variance explained by each set of variables. Then, the influence of environmental variables on species co-occurrence patterns was assessed by using latent variable models (LVM), which account for correlation between species that may be attributable to biotic interactions or missing environmental covariates. The species showed a very low niche overlap, with clear differences in their response to environmental and landscape filters. The distribution of T. s. elegans was largely explained by landscape variables, preferring uniform landscapes within the daily movement buffer, whereas at larger scales, it was associated with a high diversity of habitats of small and uniform relative sizes. A high percentage of the distribution of M. leprosa was unexplained by the measured variables and may be related to the competitive exclusion processes with T. s. elegans. The species was positively related with large patches with high perimeter values or ecotone area at medium spatial scales, and it was benefited from a marked heterogeneity in the patches’ size at larger scale. According to latent variable models, both species had wide eutrophication and salinity tolerance ranges, but they showed different environmental preferences. T. s. elegans was related to eutrophic freshwater environments, whereas M. leprosa was related to more saline and less eutrophic waters. Our results suggest that M. leprosa modifies its habitat use in order to avoid interaction with the T. s. elegans. Thus, management actions aimed at removing the invasive species from the territory and promoting habitat heterogeneity might be needed to protect M. leprosa and avoid local extinctions.

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Too much water under the bridge: unraveling the worldwide invasion of the tree tobacco through genetic and ecological approaches

Issaly,

Baranzelli,

Rocamundi

et al. 2023

Biol Invasions

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Complex genetic patterns and distribution limits mediated by native congeners of the worldwide invasive red‐eared slider turtle

Cited by 7 publications

References 91 publications

Niche overlap with an exotic competitor mediates the abundant niche‐centre relationship for a native lady beetle

Niche overlap with an exotic competitor mediates the abundant niche‐centre relationship for a native lady beetle

Coexistence of Native and Invasive Freshwater Turtles: The Llobregat Delta (NE Iberian Peninsula) as a Case Study

Too much water under the bridge: unraveling the worldwide invasion of the tree tobacco through genetic and ecological approaches

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