María Del Rosario Castañeda

María Del Rosario Castañeda
ICESI University | ICESI · Departamento de Ciencias Biológicas

PhD

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19
Publications
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966
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Publications

Publications (19)
Article
Oceanic islands are known as test tubes of evolution. Isolated and colonized by relatively few species, islands are home to many of nature’s most renowned radiations from the finches of the Galápagos to the silverswords of the Hawaiian Islands. Despite the evolutionary exuberance of insular life, island occupation has long been thought to be irreve...
Article
Air-based respiration limits the use of aquatic environments by ancestrally terrestrial animals. To overcome this challenge, diving arthropods have evolved to respire without resurfacing using air held between their cuticle and surrounding water.1, 2, 3, 4 Inspired by natural history observations in Haiti (unpublished data) and Costa Rica,⁵,⁶ we co...
Article
Full-text available
Phenotypic evolution is often exceptionally rapid on islands, resulting in numerous, ecologically diverse species. Although adaptive radiation proceeds along various phenotypic axes, the island effect of faster evolution has been mostly tested with regards to morphology. Here, we leveraged the physiological diversity and species richness of Anolis...
Article
Whereas most of the studies that discuss the evolutionary divergence of Anolis lizards have dated the clade's crown group in between 31-64 Ma, a single study has recovered a significantly older age for the same node (87 Ma). These differences also entail notable consequences on the preferred biogeographical hypothesis for the whole clade. Here we a...
Article
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Phenotypic traits may be linked to speciation in two distinct ways: character values may influence the rate of speciation or diversification in the trait may be associated with speciation events. Traits involved in signal transmission, such as the dewlap of Anolis lizards, are often involved in the speciation process. The dewlap is an important vis...
Article
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We redescribe the ecologically unusual lizard Anolis alvarezdeltoroi, previously known from a single specimen, based on newly collected and previously unidentified preserved specimens from the type-locality region in Chiapas, as well as new localities in Veracruz and Oaxaca. We include information on color, morphological variation, and natural hist...
Article
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Whether the structure of ecological communities can exhibit stability over macroevolutionary timescales has long been debated. The similarity of independently evolved Anolis lizard communities on environmentally similar Greater Antillean islands supports the notion that community evolution is deterministic. However, a dearth of Caribbean Anolis fos...
Article
Anoles are well-known examples of adaptive radiation and convergent evolution. Their phylogenetic relationships have been intensely studied, but their fossil record remains fairly poor, limiting our understanding of their evolutionary history. We present new data on Anolis electrum Lazell, 1965, the first discovered fossil anole and sole vertebrate...
Article
Full-text available
1. Life history varies across latitudes, with the ‘pace of life’ being ‘slower’ in tropical regions. Because life history is coupled to energy metabolism via allocation tradeoffs and links between performance capacity and energy use, low metabolic intensity is expected in tropical animals. Low metabolism has been reported for lowland tropical birds...
Article
Anoles are well-known examples of adaptive radiation and convergent evolution. Their phylogenetic relationships have been intensely studied, but their fossil record remains fairly poor, limiting our understanding of their evolutionary history. We present new data on Anolis electrum Lazell, 1965, the first discovered fossil anole and sole vertebrate...
Article
Full-text available
We present a phylogenetic analysis of the Dactyloa clade of Anolis lizards, based on morpholog- ical (66 characters of external morphology and osteology) and molecular (,4,700 bases of mitochon- drial and nuclear DNA) data. Our set of morphological characters includes some that exhibit continuous variation and others that exhibit polymorphism withi...
Article
Full-text available
Effective and targeted conservation action requires detailed information about species, their distribution, systematics and ecology as well as the distribution of threat processes which affect them. Knowledge of reptilian diversity remains surprisingly disparate, and innovative means of gaining rapid insight into the status of reptiles are needed i...
Article
The Dactyloa clade, one of two major subgroups of mainland Anolis lizards, is distributed from Costa Rica to Peru, including the Amazon region and the southern Lesser Antilles. We estimated the phylogenetic relationships within Dactyloa based on mitochondrial (ND2, five transfer-RNAs, COI) and nuclear (RAG1) gene regions using likelihood and Bayesi...

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