Climate change and body size shift in Mediterranean bivalve assemblages: unexpected role of biological invasions

Nawrot, Rafał; Albano, Paolo G.; Chattopadhyay, Devapriya; Zuschin, Martin

doi:10.1098/rspb.2017.0357

Cited by 15 publications

(15 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such intervals of higher nutrient availability would allow the development of larger body size [52] -a scenario which is in sharp contrast to the prediction of temperature-induced reduction in body size for the same time interval. On a similar line, Nawrot et al [53] demonstrated a size increase in the Mediterranean mollusc due to warming induced invasion. The effect of global warming indirectly led to an increase in the large bivalve species in the Mediterranean Sea by facilitating the entry and subsequent spread of tropical aliens.…”

Section: Absence Of Size Reduction During Events Of Climatic Warmingmentioning

confidence: 77%

Absence of general rules governing molluscan body-size response to climatic fluctuation during the Cenozoic

Chattopadhyay

2019

Historical Biology

Self Cite

View full text Add to dashboard Cite

Body size is a key factor in dictating the fate of interaction between an organism and its surrounding environment. A negative temperature-size relationship (TSR) has been suggested as one of the universal responses to climatic warming. It is also predicted that groups with narrow latitudinal range, tropical affinity and higher body size, would show higher sensitivity to climatic fluctuation. Moreover, because of the difference in thermal sensitivity, it is also expected that the response to climatic fluctuation would be different between epifaunal and infaunal groups. To confirm the generality of these relationship among marine families, we compiled the relationship between body-size and global temperature trends over Cenozoic using a database of marine benthic molluscs of class gastropoda and bivalvia resolved to temporal stages. We evaluated the dependence of climate induced body-size response to the existing size and latitudinal spread via correlating the first-difference correlation coefficient of temperature-size (ρ 1st (size-temp) ) with maximum size and latitudinal spread of family respectively. Cenozoic record of this highly diverse group does not show any signature of TSR for molluscan class or for any other regional, ecological groups during the past 66My long climatic fluctuation. We did not find any evidence supporting heightened response to climatic fluctuation in groups with limited latitudinal spread or with large body-size. The tropical species did not show significant difference in their body-size response in comparison to temperate species. It also shows lack of any difference in response between ecological groups of molluscs with varying substrate relationship and hence, refutes the predicted variation due to difference in thermal specialization. Although a negative correlation between maximum latitudinal spread and ρ 1st (size-temp) is observed for infaunal families, it is not statistically significant. Our results highlight the limited validity of "universal rules" in explaining the climate induced .

show abstract

Section: Absence Of Size Reduction During Events Of Climatic Warmingmentioning

confidence: 77%

Absence of general rules governing molluscan body-size response to climatic fluctuation during the Cenozoic

Chattopadhyay

2019

Historical Biology

Self Cite

View full text Add to dashboard Cite

show abstract

“…, Nawrot et al. ). Interpreted in combination with the results from a recent study on coral‐coral spatial competition, where the best models also do not predict spatial competition outcomes well even though they do so significantly better than random (Precoda et al.…”

Section: Discussionmentioning

confidence: 99%

Size, weapons, and armor as predictors of competitive outcomes in fossil and contemporary marine communities

Liow

Reitan

Voje

et al. 2019

Ecological Monographs

View full text Add to dashboard Cite

Inter‐ and intraspecific competition are usually observed over a few generations but their patterns and consequences are seldom tractable in natural systems over longer timescales relevant to macroevolutionary change. Here, we use win‐draw‐lose competitive overgrowths for a marine benthic community of encrusting bryozoans that have evolved together in New Zealand for at least 2.3 million years to investigate battles for substrate space, a resource that is limiting for these colonial organisms. Using more than 6,000 fossilized and contemporary battles, we explored what combination of traits—including relative zooid (module) size, weapons, armor, and relative abundance—best predict battle outcomes, and if these are time varying. In simpler models, where we disregard trait–trait interactions, we find that the effects of larger zooid sizes and three‐dimensional growth on battle outcomes are both positive, while that of relative abundance is negative, such that more common species are more often overgrown by less common species. When we include trait–trait and trait–time interactions in our models, we confirm that a larger zooid size is advantageous for successful overgrowth but infer that it is time varying. In these complex models, we also detect interactions between combinations of traits, where more armored and weaponized bryozoans seem to be at a disadvantage in overgrowth battles. Our best models do perform statistically better than the null model, but we find that there is low predictability for overgrowth outcomes for our New Zealand data set of fossil and contemporary battles, suggesting unmeasured variables and/or high stochasticity in a system that is otherwise well characterized. A best model, developed using our New Zealand data, is applied to three ecologically similar systems described in previous studies to investigate its general predictive power, with the expectation that it would perform better than null models. Surprisingly, we find that the best model developed within the New Zealand system cannot be extrapolated to other encrusting cheilostome bryozoan communities and that these three communities often even have opposite signs for trait coefficients. We conclude that there is much to learn about multi‐species marine communities where biotic interactions such as competition may have long‐lasting consequences for ecological and evolutionary dynamics.

show abstract

“…For example, North American Pacific coast bivalves with larger body sizes appear more likely to become established outside their initial ranges since the Pleistocene (Roy et al 2001, 2002). In recent, human-mediated introductions into the Mediterranean Sea, successful invaders from the Red Sea were larger than native taxa (Nawrot et al 2017). Because we know body size to be phylogenetically conserved in bivalves (Saulsbury et al 2019), these patterns suggest colonizers may be more closely related to one another than expected from random.…”

Section: Discussionmentioning

confidence: 99%

Relatedness and the composition of communities over time: Evaluating phylogenetic community structure in the late Cenozoic record of bivalves

Chang

Skipwith

2020

Paleobiology

View full text Add to dashboard Cite

Understanding the mechanisms that prevent or promote the coexistence of taxa at local scales is critical to understanding how biodiversity is maintained. Competitive exclusion and environmental filtering are two processes thought to limit which taxa become established in a community. However, determining the relative importance of the two processes is a complex task, especially when the critical initial stages of colonization cannot be directly observed. Here, we explore the use of phylogenetic community structure for identifying filtering mechanisms in a fossil community. We integrated a time-calibrated molecular phylogeny of bivalve genera with a spatial dataset of late Cenozoic bivalves from the Pacific coast of North America to characterize how the community that was present in the semirestricted San Joaquin Basin (SJB) embayment of present-day California was phylogenetically structured. We employed phylogenetic distance-based metrics across six time bins spanning 27–2.5 Ma and found no evidence of significant clustering or evenness in the SJB community when compared with communities randomly assembled from the regional source pool. Additionally, we found that new colonizers into the SJB were not significantly more or less closely related to native taxa than expected by chance. These findings suggest that neither competitive exclusion nor environmental filtering were overwhelmingly influential factors shaping the composition of the SJB community over time. We further discuss interpretations of these patterns in light of current understandings in community phylogenetics and reiterate the critical role historical perspectives play in how community assembly rules are assessed.

show abstract

Climate change and body size shift in Mediterranean bivalve assemblages: unexpected role of biological invasions

Cited by 15 publications

References 59 publications

Absence of general rules governing molluscan body-size response to climatic fluctuation during the Cenozoic

Absence of general rules governing molluscan body-size response to climatic fluctuation during the Cenozoic

Size, weapons, and armor as predictors of competitive outcomes in fossil and contemporary marine communities

Relatedness and the composition of communities over time: Evaluating phylogenetic community structure in the late Cenozoic record of bivalves

Contact Info

Product

Resources

About