D'Aloia Cassidy C.

No Thumbnail Available
Last Name
D'Aloia
First Name
Cassidy C.
ORCID

Filters

2018 - 2019 9 2020 - 2021 1
10
Reset filters

Settings

Search Results

Now showing 1 - 10 of 10
  • Preprint
    The formation of marine kin structure : effects of dispersal, larval cohesion, and variable reproductive success
    ( 2018-08) D'Aloia, Cassidy C. ; Neubert, Michael G.
    The spatial distribution of relatives has profound e ects on kin interactions, inbreeding, and inclusive tness. Yet, in the marine environment, the processes that generate patterns of kin structure remain understudied because larval dispersal on ocean currents was historically assumed to disrupt kin associations. Recent genetic evidence of co-occurring siblings challenges this assumption and raises the intriguing question of how siblings are found together after a (potentially) disruptive larval phase. Here, we develop individual based models to explore how stochastic processes operating at the individual level a ect expected kinship at equilibrium. Speci cally, we predict how limited dispersal, sibling cohesion, and variability in reproductive success di erentially a ect patterns of kin structure. All three mechanisms increase mean kinship within populations, but their spatial e ects are markedly di erent. We nd that: (1) when dispersal is limited, kinship declines monotonically as a function of the distance between individuals; (2) when siblings disperse cohesively, kinship increases within a site relative to between sites; and (3) when reproductive success varies, kinship increases equally at all distances. The di erential e ects of these processes therefore only become apparent when individuals are sampled at multiple spatial scales. Notably, our models suggest that aggregative larval behaviors, such as sibling cohesion, are not necessary to explain documented levels of relatedness within marine populations. Together, these ndings establish a theoretical framework for disentangling the drivers of marine kin structure.
  • Dataset
    UTM coordinates for waypoint locations used to generate Elori raw data in 2006.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-03-27) Buston, Peter ; D'Aloia, Cassidy C.
    UTM coordinates for waypoint locations used to generate Elori raw data in 2006. 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/704783
  • Dataset
    Geolocation, abundance, and morphology data from Carrie Bow Caye in the Belizean Barrier Reef.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-03-27) Buston, Peter ; D'Aloia, Cassidy C.
    Geolocation, abundance, and morphology data from Carrie Bow Caye in the Belizean Barrier Reef. 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/705432
  • Dataset
    Cytochrome b and radloci genotype identification data from fish sampled in the Belizean Barrier Reef in 2014.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-06-07) Buston, Peter ; D'Aloia, Cassidy C.
    Cytochrome b and radloci genotype identification data from fish sampled in the Belizean Barrier Reef in 2014. 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/738714
  • Article
    The evolution of marine larval dispersal kernels in spatially structured habitats: Analytical models, individual-based simulations, and comparisons with empirical estimates.
    (University of Chicago Press, 2019-01-17) Shaw, Allison K. ; D'Aloia, Cassidy C. ; Buston, Peter M.
    Understanding the causes of larval dispersal is a major goal of marine ecology, yet most research focuses on proximate causes. Here we ask how ultimate, evolutionary causes affect dispersal. Building on Hamilton and May’s classic 1977 article “Dispersal in Stable Habitats,” we develop analytic and simulation models for the evolution of dispersal kernels in spatially structured habitats. First, we investigate dispersal in a world without edges and find that most offspring disperse as far as possible, opposite the pattern of empirical data. Adding edges to our model world leads to nearly all offspring dispersing short distances, again a mismatch with empirical data. Adding resource heterogeneity improves our results: most offspring disperse short distances with some dispersing longer distances. Finally, we simulate dispersal evolution in a real seascape in Belize and find that the simulated dispersal kernel and an empirical dispersal kernel from that seascape both have the same shape, with a high level of short-distance dispersal and a low level of long-distance dispersal. The novel contributions of this work are to provide a spatially explicit analytic extension of Hamilton and May’s 1977 work, to demonstrate that our spatially explicit simulations and analytic models provide equivalent results, and to use simulation approaches to investigate the evolution of dispersal kernel shape in spatially complex habitats. Our model could be modified in various ways to investigate dispersal evolution in other species and seascapes, providing new insights into patterns of marine larval dispersal.
  • Dataset
    Data from fish genotyped at 14 and 20 loci at different life stages in the Belizean Barrier Reef in 2013.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-06-07) Buston, Peter ; D'Aloia, Cassidy C.
    Data from fish genotyped at 14 and 20 loci at different life stages in the Belizean Barrier Reef in 2013. 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/738724
  • Dataset
    Data from 120 parent-offspring matches identified in fish on the Belizean Barrier Reef in 2013.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-06-07) Buston, Peter ; D'Aloia, Cassidy C.
    Data from 120 parent-offspring matches identified in fish on the Belizean Barrier Reef in 2013. 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/738704
  • Dataset
    Genotype data for E. lori individuals sequenced at 71 microsatellites from a 41 km-long transect of the Belize Barrier reef during 2018
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-05-19) Buston, Peter ; D'Aloia, Cassidy C.
    Genotype data for E. lori individuals sequenced at 71 microsatellites from a 41 km-long transect of the Belize Barrier reef during 2018. 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/749774
  • Dataset
    Microsatellite genotypes and geolocation data from the Belizean Barrier reef collected in 2012.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-06-10) Buston, Peter ; D'Aloia, Cassidy C.
    Microsatellite genotypes and geolocation data from the Belizean Barrier reef collected in 2012. 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/743594
  • Dataset
    Goby distribution and morphology data from Curlew Caye in the Belizean Barrier Reef collected in 2011.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-03-19) Buston, Peter ; D'Aloia, Cassidy C.
    Goby distribution and morphology data from Curlew Caye in the Belizean Barrier Reef collected in 2011. 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/728230