José Jonathas P R de Lira

José Jonathas P R de Lira
Université du Québec à Montréal | UQAM · Department of Biological Sciences

Doctor of Philosophy

About

11
Publications
2,249
Reads
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86
Citations
Introduction
I am a biologist with a broad interest in the interplay among ecology, evolution, and behavior, and how environment factors shape such interactions. Specifically, I aim at understanding phenotypic variation among populations, focusing on life-history, morphological traits, and sexual selection, and to what extent such variation leads to reproductive isolation among individuals from different populations.
Additional affiliations
September 2014 - February 2021
McGill University
Position
  • PhD Student
March 2010 - February 2012
Universidade Federal do Ceará
Position
  • Graduate student (Master)
May 2006 - January 2010
Universidade Federal de Alagoas
Position
  • Student
Description
  • Description of fecundity, breeding period, relative growth, sex ratio, and size class distribution of the mangrove crab Goniopsis cruentata.
Education
February 2010 - February 2012
Universidade Federal do Ceará
Field of study
  • Population Biology
April 2006 - December 2009
Universidade Federal de Alagoas
Field of study
  • Reproduction of crabs

Publications

Publications (11)
Article
Full-text available
The knowledge of reproductive traits is essential to the comprehension of the evolution of life history and population dynamics of a species. Here, we evaluate morphological maturity, relative growth, fe-cundity, relationship between size and fecundity, brood loss, and seasonal variation of brood size in the crab Goniopsis cruentata. Crabs were col...
Article
Full-text available
Background: Trade-offs between natural and sexual selection have major consequences for the evolution of traits subject to both forces. However, such a trade-off might not be easily detected given that both natural and sexual selection operate in a multi-trait-rather than in a single-trait-manner. Organism: The Trinidadian guppy, Poecilia reticulat...
Article
Full-text available
The prey naiveté hypothesis (PNH) posits that prey will often fail to recognize and respond to introduced predators with whom they do not share a co-evolutionary history. We tested this hypothesis by examining anti-predator behaviour in the native characid fish Astyanax ruberrimus in response to its main native (Hoplias microlepis) and introduced (...
Article
Full-text available
Male genitalia present an extraordinary pattern of rapid divergence in animals with internal fertilization, which is usually attributed to sexual selection. However, the effect of ecological factors on genitalia divergence could also be important, especially so in animals with nonretractable genitalia because of their stronger interaction with the...
Article
Full-text available
Geographic variation of phenotypic traits is common across species and is often associated with variation in environmental conditions. Here, we found larger bodies and larger size at maturity in a northward, lower latitude population of the crab Goniopsis cruentata, which inhabits a hotter, drier environment in comparison with a southward, higher l...
Article
A number of examples exist of trade-offs between mating success and survival; that is, success in one fitness component comes at the cost of success in the other fitness component. However, these expected trade-offs are – perhaps even more commonly – not observed. One explanation for this apparent paradox of missing trade-offs could be that the oth...
Article
Full-text available
The marine crab Plagusia depressa, despite its broad geographic range, is not well known. Here, we attempt to fill this gap by studying several aspects of its biology. We sampled P. depressa in the reefs of Coruripe, Brazil and investigated the sex ratio, body size, maturity, the allometric growth of the gonopod in males and of the abdomen in femal...
Article
Full-text available
We studied two key traits in the life of organisms, body size and sexual maturity, and a population attribute, density, of the crab Goniopsis cruentata. Also, we evaluated the role of environmental factors on population density. We caught crabs in two mangrove sites that are under different influence of tidal fluctuation, and obtained pH and salini...
Article
Full-text available
The brachyuran crabs are iteroparous species which present a high diversification of reproduction patterns, which may have evolved as a species-specific response to environmental conditions. Tropical species commonly present a year-round reproduction due to stable environment conditions. Goniopsis cruentata is a crab species widely distributed alon...
Article
Full-text available
The condition factor is a parameter which acts as a general indicator of the "well-being" of a species, and it can be obtained through the analysis of width vs. weight relationships. The present work aims to investigate size vs. weight relationship and the condition factor of the crab Goniopsis cruentata (Latreille, 1803). The study area was the Mu...
Article
Full-text available
The present work aims to study the size vs. weight relationship and the condition factor of a commercially important crab, Callinectes danae, from an estuarine complex located at Pernambuco State, Northeastern Brazil. After sampled, the specimens were measured on their carapace width (CW; mm) and weighted on their wet weight (WW; g). A total of 1,6...

Questions

Question (1)
Question
I am studying density-dependent effects on some life history parameters of a mangrove crab. I found that the size at sexual maturity was delayed at higher density. According to life history theory, age at maturity is expected to be delayed when the mortality rates among juveniles is higher than adult mortality. Unfortunately, I was unable to measure the mortality rates in the population.

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