Repetto Michele F.

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Repetto
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Michele F.
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  • Dataset
    Composition of experimental marine invertebrate communities across latitude (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-04-18) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana P. ; Repetto, Michele F. ; Schlöder, Carmen ; Ruiz, Gregory E.
    Community composition of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Communities developed for three or 12 months under nine different treatments that tested the effect of predation and competition. Caging was used to reduce predation pressure and biomass removals opened up space, a limiting resource in sessile communities. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/861250
  • Dataset
    Recruitment composition of sessile marine invertebrate communities across latitude (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-04-18) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana P. ; Repetto, Michele F. ; Schlöder, Carmen ; Ruiz, Gregory E.
    Composition of newly recruited communities of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Caging treatments were employed to test the effect of predation on recruitment. Monitoring began in Alaska in June 2015, California in May 2016, Mexico in June 2017 and Panama in December 2015. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/863126
  • Dataset
    Richness of experimental marine invertebrate communities across latitude (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-04-18) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana P. ; Repetto, Michele F. ; Schlöder, Carmen ; Ruiz, Gregory E.
    Richness of sessile marine invertebrate communities from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Communities developed for three or 12 months under nine different treatments that tested the effect of predation and competition. Caging was used to reduce predation pressure and biomass removals opened up space, a limiting resource in sessile communities. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/861234
  • Dataset
    Community composition (relative abundance) separated by native and cryptogenic, and introduced species of each community from coastal sites across a geographic gradient spanning the sub-arctic to the tropics from 2015-2017
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-08-30) Freestone, Amy ; Torchin, Mark ; Lopez, Diana P. ; Bonfim, Mariana ; Jurgens, Laura ; Repetto, Michele F. ; Schloder, Carmen ; Ruiz, Gregory
    Community composition of sessile marine invertebrates from coastal sites across a geographic gradient spanning the sub-arctic to the tropics. Community composition is divided into two data sets. One corresponds to the community composition of the introduced species found in each community, and the other data set corresponds to the community composition of native and cryptogenic species found in each community. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/850190
  • Dataset
    Biomass of sessile marine invertebrate communities with exposure to predation (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-04-18) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana P. ; Repetto, Michele F. ; Schlöder, Carmen ; Ruiz, Gregory E.
    Biomass of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Invertebrate communities developed under low predation for three or 12 months within cages and then underwent exposure to predation or were re-caged as controls. This experiment provided an assessment of predation impact on mature communities to complement predator exclusion experiments that measured impact of predators on prey community assembly. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/862092
  • Dataset
    Biomass of experimental marine invertebrate communities across latitude (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-04-18) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana P. ; Repetto, Michele F. ; Schlöder, Carmen ; Ruiz, Gregory E.
    Biomass of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Biomass of each community was measured after a developmental period of three or 12 months under nine different treatments that tested the effect of predation and competition. Caging was used to reduce predation pressure and biomass removals opened up space, a limiting resource in sessile communities. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/861655
  • Dataset
    Composition of marine invertebrate communities across latitude with exposure to predation (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2023-03-09) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana Paola ; Repetto, Michele F. ; Schlöder, Carmen ; Ruiz, Gregory E.
    Composition of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Invertebrate communities developed under low predation for three or 12 months within cages and then underwent exposure to predation or were re-caged as controls. This experiment provided an assessment of predation impact on mature communities to complement predator exclusion experiments that measured impact of predators on prey community assembly. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/862068
  • Article
    Effects of season and latitude on the diet quality of the invasive Asian shore crab Hemigrapsus sanguineus
    (Inter Research, 2023-01-26) Reese, Tanner C. ; Alder, Jill ; Asay, Emily Gail ; Blakeslee, April M. H. ; Cabrera, Doreen ; Crane, Laura C. ; Fletcher, Laura S. ; Pinkston, Emily ; Repetto, Michele F. ; Smith, Nanette ; Stancil, Carter ; Tepolt, Carolyn K. ; Toscano, Benjamin J. ; Griffen, Blaine D.
    Invasive species alter invaded ecosystems via direct impacts such as consumption. In turn, an invasive species’ ability to thrive in new habitats depends on its ability to exploit available resources, which may change over time and space. Diet quality and quantity are indicators of a consumer’s consumptive effects and can be strongly influenced by season and latitude. We examined the effects of season and latitude on the diet quality and quantity of the invasive Asian shore crab Hemigrapsus sanguineus throughout a non-winter sampling year at 5 different sites spanning 8° of latitude across its invaded United States range. We found that diet quality, averaged through time, largely follows an expected latitudinal cline, being higher in the center of its range and lower toward the southern and northern edges. We also found that while some sites show similar patterns of diet quality variation with season, no pattern is consistent across all latitudes. Finally, we found that crabs at sites with low diet quality during summer reproductive months did not compensate by increasing total consumption. Because the Asian shore crab is an important consumer in its invaded ecosystems, understanding how its diet quality and quantity vary with season and latitude can help us better understand how this species influences trophic interactions and community structure, how it has been able to establish across a wide ecological and environmental range, and where future range expansion is most likely to occur.
  • Dataset
    Intra-annual salinity and temperature variation in four regions across latitude (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-04-18) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana P. ; Repetto, Michele F. ; Schlöder, Carmen ; Ruiz, Gregory E.
    Temperature and salinity measurements from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Environmental variables were obtained at 1 meter below the water surface and are represented in biweekly periods for one year. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/863108
  • Dataset
    Predation intensity on marine invertebrate communities across latitude observed using underwater video (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-04-18) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana P. ; Repetto, Michele F. ; Ruiz, Gregory E. ; Schlöder, Carmen
    Predation intensity recorded from exposed prey communities at coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Invertebrate communities developed under low predation for three or 12 months within cages. Mature prey communities were then exposed to ambient predation, with a high definition camera recording all predation events during the diurnal period over three days of exposure. This experiment provided an assessment of predation intensity (and predator identity) to complement predator exclusion experiments that measured impact of predators on prey community assembly. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/863158
  • Dataset
    Richness of marine invertebrate communities across latitude with exposure to predation (Competition and Predation across Latitude)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-04-18) Freestone, Amy L. ; Torchin, Mark E. ; Bonfim, Mariana ; Jurgens, Laura J. ; López, Diana P. ; Repetto, Michele F. ; Schlöder, Carmen ; Ruiz, Gregory E.
    Richness of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Invertebrate communities developed under low predation for three or 12 months within cages and then underwent exposure to predation or were re-caged as controls. This experiment provided an assessment of predation impact on mature communities to complement predator exclusion experiments that measured impact of predators on prey community assembly. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/862052
  • Article
    Past energy allocation overwhelms current energy stresses in determining energy allocation trade-offs
    (Wiley Open Access, 2023-08-08) Griffen, Blaine D. ; Bolander, Mikayla ; Blakeslee, April ; Crane, Laura C. ; Repetto, Michele F. ; Tepolt, Carolyn K. ; Toscano, Benjamin J.
    Regeneration of lost appendages is a gradual process in many species, spreading energetic costs of regeneration through time. Energy allocated to the regeneration of lost appendages cannot be used for other purposes and, therefore, commonly elicits energetic trade-offs in biological processes. We used limb loss in the Asian shore crab Hemigrapsus sanguineus to compare the strength of energetic trade-offs resulting from historic limb losses that have been partially regenerated versus current injuries that have not yet been repaired. Consistent with previous studies, we show that limb loss and regeneration results in trade-offs that reduce reproduction, energy storage, and growth. As may be expected, we show that trade-offs in these metrics from historic limb losses far outweigh trade-offs from current limb losses, and correlate directly with the degree of historic limb loss that has been regenerated. As regenerating limbs get closer to their normal size, these historical injuries get harder to detect, despite the continued allocation of additional resources to limb development. Our results demonstrate the importance of and a method for identifying historic appendage losses and of quantifying the amount of regeneration that has already occurred, as opposed to assessing only current injury, to accurately assess the strength of energetic trade-offs in animals recovering from nonlethal injury.
  • Article
    Shift from income breeding to capital breeding with latitude in the invasive Asian shore crab Hemigrapsus sanguineus
    (Nature Research, 2024-03-20) Reese, Tanner C. ; Blakeslee, April M. H. ; Crane, Laura C. ; Fletcher, Laura S. ; Repetto, Michele F. ; Smith, Nanette ; Stancil, Carter ; Tepolt, Carolyn K. ; Toscano, Benjamin J. ; Griffen, Blaine D.
    Organisms vary in the timing of energy acquisition and use for reproduction. Thus, breeding strategies exist on a continuum, from capital breeding to income breeding. Capital breeders acquire and store energy for breeding before the start of the reproductive season, while income breeders finance reproduction using energy acquired during the reproductive season. Latitude and its associated environmental drivers are expected to heavily influence breeding strategy, potentially leading to latitudinal variation in breeding strategies within a single species. We examined the breeding strategy of the Asian shore crab Hemigrapsus sanguineus at five sites spanning nearly 10° of latitude across its invaded United States range. We hypothesized that the primary breeding strategy of this species would shift from income breeding to capital breeding as latitude increases. We found that though this species’ breeding strategy is dominated by capital breeding throughout much of the range, income breeding increases in importance at lower latitudes. This latitudinal pattern is likely heavily influenced by the duration of the foraging and breeding seasons, which also vary with latitude. We also found that reproductive characteristics at the northern and southern edges of the invaded range were consistent with continued range expansion. We suggest that the reproductive flexibility of the Asian shore crab is a key facilitator of its continued invasion success. Our results highlight the influence of latitude on the breeding strategy of a species and emphasize the need for further research regarding the ecological importance and implications of flexibility in breeding strategies within species.