Phenotypic covariance matrix in life-history traits along a latitudinal gradient: a study case in a geographically widespread crab on the coast of Chile

Lardies, Marco A.; Arias, María Belén; Bacigalupe, Leonardo D.

doi:10.3354/meps08694

Cited by 23 publications

(21 citation statements)

References 55 publications

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“…Cyclograpsus cinereus has a geographical distribution, from Ancó n, Perú to Calbuco, Chile (Bahamonde & Ló pez 1969). According to Thiel et al (2007) the sea surface temperature (SST) decreases gradually from northern towards southern Chile and the life-history traits of populations of marine crustaceans, including C. cinereus, show consistent variations along the Chilean coast (Lardies et al 2008(Lardies et al , 2010Lardies & Castilla 2001). We hypothesize that intertidal crabs inhabiting low latitudes (i.e.…”

Section: Introductionmentioning

confidence: 99%

Latitudinal variation in the aerial/aquatic ratio of oxygen consumption of a supratidal high rocky‐shore crab

et al. 2010

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The colonisation of the terrestrial environment by crustaceans is more apparent in tropical latitudes because of the high diversity of semi‐terrestrial and terrestrial crabs. However, in temperate regions there are also great numbers of crustaceans that inhabit ecological niches at the water–air interface. Grapsidae crabs (Decopoda) are especially important in studies of water‐to‐land transition as the family contains species occupying the intertidal and adjacent regions. A way to evaluate the ability of intertidal invertebrates to breathe air is to measure the aerial/aquatic oxygen consumption ratio. The objective of this study was to test the effect of thermal variation on the aquatic and aerial metabolism. We selected as study model the decopoda crab Cyclograpsus cinereus Dana and utilised five populations of the species spread over 2000 km along the Chilean coast. To determine the compensation capacity in respiration with respect to latitude, we evaluated metabolic rate at the same temperature in a common garden design in the laboratory, to examine the extent to which variation in crab physiology is environmentally determined. Whereas in our study, mb (body mass) varied significantly with latitude, the difference in mass‐independent metabolism both in air and water persisted, indicating that observed differences in MR (Metabolic Rate) were not an effect of differences in body size. We demonstrated that C. cinereus is able to breath oxygen from air and water as expected for an amphibious crab. Almost all the studied populations of C. cinereus show a aerial/aquatic metabolism ratio near 1. The pattern found indicates an increase in metabolic rate, both aerial and aquatic, in low latitudes and therefore does not support the latitudinal compensation hypothesis for temperate habitats. Finally, these kinds of studies are required to make the necessary link between ecological physiology and macroecology and to help develop a global understanding of organismal function in marine systems.

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Section: Introductionmentioning

confidence: 99%

Latitudinal variation in the aerial/aquatic ratio of oxygen consumption of a supratidal high rocky‐shore crab

et al. 2010

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“…Here, we evaluated the impact that dif- A major selective force in nature is exposure to environmental perturbations (Bijlsma & Loeschcke, 2005;Hoffmann & Hercus, 2000;Hoffmann & Parsons, 1991). Animals have evolved several strategies, from genetic (e.g., Alvarez, Espinoza, Inostroza B, & Arce, 2015;Hebbelmann et al, 2012;Lardies, Arias, & Bacigalupe, 2010;Silva, Bacigalupe, Luna-Rudloff, & Figueroa, 2012;Sørensen & Loeschcke, 2004), to physiological (e.g., Bozinovic, Catalán, & Kalergis, 2013;Castañeda et al, 2011;Chapin, Autumn, & Pugnaire, 2012;Hermes-Lima & Zenteno-Savìn, 2002;Uy, Leduc, Ganote, & Price, 2015) and behavioral (e.g., Kitaysky, Wingfield, & Piatt, 2001;Koolhaas et al, 1999;Ruiz-Aravena et al, 2014;Wingfield & Kitaysky, 2002) to deal with or avoid the effects of such stressors. Additionally, fitnessrelated traits are not an exception and are also affected by environmental stress (Bijlsma & Loeschcke, 2005).…”

Section: Discussionmentioning

confidence: 99%

The multigenerational effects of water contamination and endocrine disrupting chemicals on the fitness of Drosophila melanogaster

Quesada-Calderón

Bacigalupe

Toro-Vélez

et al. 2017

Ecology and Evolution

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Water pollution due to human activities produces sedimentation, excessive nutrients, and toxic chemicals, and this, in turn, has an effect on the normal endocrine functioning of living beings. Overall, water pollution may affect some components of the fitness of organisms (e.g., developmental time and fertility). Some toxic compounds found in polluted waters are known as endocrine disruptors (ED), and among these are nonhalogenated phenolic chemicals such as bisphenol A and nonylphenol. To evaluate the effect of nonhalogenated phenolic chemicals on the endocrine system, we subjected two generations (F0 and F1) of Drosophila melanogaster to different concentrations of ED. Specifically, treatments involved wastewater, which had the highest level of ED (bisphenol A and nonylphenol) and treated wastewater from a constructed Heliconia psittacorum wetland with horizontal subsurface water flow (He); the treated wastewater was the treatment with the lowest level of ED. We evaluated the development time from egg to pupa and from pupa to adult as well as fertility. The results show that for individuals exposed to treated wastewater, the developmental time from egg to pupae was shorter in individuals of the F1 generation than in the F0 generation. Additionally, the time from pupae to adult was longer for flies growing in the H. psittacorum treated wastewater. Furthermore, fertility was lower in the F1 generation than in the F0 generation. Although different concentrations of bisphenol A and nonylphenol had no significant effect on the components of fitness of D. melanogaster (developmental time and fertility), there was a trend across generations, likely as a result of selection imposed on the flies. It is possible that the flies developed different strategies to avoid the effects of the various environmental stressors.

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“…When populations of N. granulata from MC and SAO were compared [2] the expected correlation between size and latitude/temperature was not found: individuals from SAO, near the southern limit of distribution of the species (higher latitude) were smaller than the low latitude population, instead of bigger as expected according Bergmann's rule. This biogeographical rule predicts an increase in body size at higher latitudes, as occurs in the clinal pattern of variation observed in other intertidal crabs for example Cyclograpsus cinereus in Chilean coasts [16] and Uca uruguayensis in Brazilian and Argentinean coasts [5]. The finding of RSJ population, with the biggest sizes recorded for the species, at only one degree southern latitude than SAO but with a better food quality [26] may be an example of the paradox described by Atkinson and Sibly [1] as a result of the combined effects of food quality and temperature.…”

Section: Discussionmentioning

confidence: 99%

Effect of different protein supply on growth of three populations of a crab adapted to low energy diets

2016

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Juvenile individuals of the crab Neohelice granulata (Brachyura: Grapsoidea: Varunidae) were grown in laboratory using five artificial diets containing 3, 6, 12, 18 and 24 % of crude protein and 3 % of lipids during 7 months. Crabs belonged to three different populations. Two of them, San Antonio Oeste (SAO) and Riacho San José (RSJ) are close; they are not genetically differentiated but vary in morphological traits. The third, Mar Chiquita (MC), is far and genetically differentiated from the other two, but morphological traits of their individuals are intermediate. The growth (absolute and relative size change, final body mass), molting frequency, hepatosomatic index of individuals, as well as the Carbon and Nitrogen content and histological structure of their digestive glands, were analyzed. Mar Chiquita individuals differed from one or both of the other two populations. Time to first molt was significantly longer in MC, final size was significantly smaller in MC than RSJ and hepatosomatic index was significantly lower in MC compared to SAO and RSJ. San Antonio Oeste and RSJ individuals never differed. Furthermore, in all cases crabs were able to molt and growth with all diets, although growth in size and mass were higher, and intermolt periods shorter, when diets contained higher percentages of protein. It is concluded that species is well adapted to low quality food sources and it is suggested that size differences previously observed between SAO and RSJ crabs are due to phenotypic plasticity, while differences with MC population are governed by evolutionary adaptation to different food availability.

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Phenotypic covariance matrix in life-history traits along a latitudinal gradient: a study case in a geographically widespread crab on the coast of Chile

Cited by 23 publications

References 55 publications

Latitudinal variation in the aerial/aquatic ratio of oxygen consumption of a supratidal high rocky‐shore crab

Latitudinal variation in the aerial/aquatic ratio of oxygen consumption of a supratidal high rocky‐shore crab

The multigenerational effects of water contamination and endocrine disrupting chemicals on the fitness of Drosophila melanogaster

Effect of different protein supply on growth of three populations of a crab adapted to low energy diets

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