Publications by authors named "M I Remis"

Quaternary climate oscillations and modification of the environment by humans have played an important role in shaping species distribution and genetic structure of modern species. Here, population genetic parameters were inferred from the analysis of 168 individuals belonging to 11 populations of the South American grasshopper, Dichroplus vittatus, distributed in two Argentinean Biomes (Grassland and Savanna), by sequencing a 543 bp of the mitochondrial COI gene. Overall, we detected considerable haplotype diversity and low nucleotide diversity.

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Article Synopsis
  • The water hyacinth grasshopper serves as a model to study genetic and physical variations in insect populations across South America, especially as a potential agent for controlling invasive water hyacinth in South Africa.
  • Research shows that body size of these grasshoppers correlates with latitude, temperature, and rainfall in their habitats.
  • The findings indicate that phenotypic differences are more pronounced than genetic ones, suggesting directional selection is influencing their physical traits based on environmental factors, particularly in populations closer to river deltas.
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Social grooming in the animal kingdom is common and serves several functions, from removing ectoparasites to maintaining social bonds between conspecifics. We examined whether time spent grooming with others in a highly social mammal species was associated with infection status for gastrointestinal parasites. Of six parasites detected, one (Trichuris sp.

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Capuchin monkeys (genera Cebus and Sapajus) show a wide range distribution, from Honduras to Argentina. The aim of this work was to evaluate the genetic and phenotypic variability of captive specimens putatively belonging to S. cay (SCY) and S.

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