Including Fossils in Phylogenetic Climate Reconstructions: A Deep Time Perspective on the Climatic Niche Evolution and Diversification of Spiny Lizards (Sceloporus)

2016 ◽  
Vol 188 (2) ◽  
pp. 133-148 ◽  
Author(s):  
A. Michelle Lawing ◽  
P. David Polly ◽  
Diana K. Hews ◽  
Emília P. Martins
2016 ◽  
Vol 283 (1839) ◽  
pp. 20161408 ◽  
Author(s):  
Amy M. Waterson ◽  
Daniela N. Schmidt ◽  
Paul J. Valdes ◽  
Patricia A. Holroyd ◽  
David B. Nicholson ◽  
...  

Ectotherms have close physiological ties with the thermal environment; consequently, the impact of future climate change on their biogeographic distributions is of major interest. Here, we use the modern and deep-time fossil record of testudines (turtles, tortoises, and terrapins) to provide the first test of climate on the niche limits of both extant and extinct (Late Cretaceous, Maastrichtian) taxa. Ecological niche models are used to assess niche overlap in model projections for key testudine ecotypes and families. An ordination framework is applied to quantify metrics of niche change (stability, expansion, and unfilling) between the Maastrichtian and present day. Results indicate that niche stability over evolutionary timescales varies between testudine clades. Groups that originated in the Early Cretaceous show climatic niche stability, whereas those diversifying towards the end of the Cretaceous display larger niche expansion towards the modern. Temperature is the dominant driver of modern and past distributions, whereas precipitation is important for freshwater turtle ranges. Our findings demonstrate that testudines were able to occupy warmer climates than present day in the geological record. However, the projected rate and magnitude of future environmental change, in concert with other conservation threats, presents challenges for acclimation or adaptation.


2014 ◽  
Vol 13 ◽  
pp. 84-85
Author(s):  
Luis Felipe Hinojosa ◽  
Francisca Campano ◽  
Francy Carvajal ◽  
Mirta Quattrochio ◽  
María Fernanda Pérez ◽  
...  

2020 ◽  
Vol 47 (2) ◽  
pp. 123-132
Author(s):  
Israel Moreno-Contreras ◽  
Luis A. Sánchez-González ◽  
María del Coro Arizmendi ◽  
David A. Prieto-Torres ◽  
Adolfo G. Navarro-Sigüenza

2016 ◽  
Vol 17 (1) ◽  
pp. 11-28 ◽  
Author(s):  
Diego L. Salariato ◽  
Fernando O. Zuloaga

2012 ◽  
Vol 39 (12) ◽  
pp. 2201-2211 ◽  
Author(s):  
Jan Schnitzler ◽  
Catherine H. Graham ◽  
Carsten F. Dormann ◽  
Katja Schiffers ◽  
H. Peter Linder

2018 ◽  
Vol 36 (1) ◽  
pp. 63-81 ◽  
Author(s):  
Stefan Skrimshire

The Anthropocene concept allows human history to be imagined within the temporal framework of planetary processes. Accordingly, some environmentalists increasingly favour massively lengthening the temporal horizons of moral concern. Whilst there are defensible reasons for doing so, I wish to take issue with the ‘secular time’ perspective underlying some such approaches. To make my case, I present, in the first section, two recent manifestations of the long view perspective: a) ‘deep future’ narratives in popular climate science and futurism; b) the ideas behind the Long Now Foundation. In the second section, I apply a critical lens to these perspectives via classic analyses of secular time by Charles Taylor, Hannah Arendt and Giorgio Agamben. I conclude by suggesting that these post-secular critiques should be considered alongside recent approaches to the Anthropocene and the ‘geological turn’ from new materialist perspectives.


2016 ◽  
Vol 283 (1824) ◽  
pp. 20152458 ◽  
Author(s):  
Camila Gómez ◽  
Elkin A. Tenorio ◽  
Paola Montoya ◽  
Carlos Daniel Cadena

Differences in life-history traits between tropical and temperate lineages are often attributed to differences in their climatic niche dynamics. For example, the more frequent appearance of migratory behaviour in temperate-breeding species than in species originally breeding in the tropics is believed to have resulted partly from tropical climatic stability and niche conservatism constraining tropical species from shifting their ranges. However, little is known about the patterns and processes underlying climatic niche evolution in migrant and resident animals. We evaluated the evolution of overlap in climatic niches between seasons and its relationship to migratory behaviour in the Parulidae, a family of New World passerine birds. We used ordination methods to measure seasonal niche overlap and niche breadth of 54 resident and 49 migrant species and used phylogenetic comparative methods to assess patterns of climatic niche evolution. We found that despite travelling thousands of kilometres, migrants tracked climatic conditions across the year to a greater extent than tropical residents. Migrant species had wider niches than resident species, although residents as a group occupied a wider climatic space and niches of migrants and residents overlapped extensively. Neither breeding latitude nor migratory distance explained variation among species in climatic niche overlap between seasons. Our findings support the notion that tropical species have narrower niches than temperate-breeders, but does not necessarily constrain their ability to shift or expand their geographical ranges and become migratory. Overall, the tropics may have been historically less likely to experience the suite of components that generate strong selection pressures for the evolution of migratory behaviour.


2010 ◽  
Vol 19 (7) ◽  
pp. 1423-1438 ◽  
Author(s):  
SABINE S. JAKOB ◽  
CHRISTOPH HEIBL ◽  
DENNIS RÖDDER ◽  
FRANK R. BLATTNER

Astrobiology ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 39-59
Author(s):  
Martin J. Van Kranendonk ◽  
Raphael Baumgartner ◽  
Tara Djokic ◽  
Tsutomu Ota ◽  
Luke Steller ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document