Darko D. Cotoras

Darko D. Cotoras
California Academy of Sciences · Department of Entomology

PhD

About

45
Publications
6,787
Reads
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203
Citations
Introduction
Island Biogeography, Phylogenetics, Population Genetics, Paleogenomics and Evolutionary Developmental Biology (EvoDevo).
Additional affiliations
August 2021 - present
Senckenberg Research Institute
Position
  • Humboldt postdoctoral fellow
January 2015 - December 2017
University of California, Santa Cruz / California Academy of Sciences
Position
  • PostDoc Position
Education
August 2009 - December 2014
University of California, Berkeley
Field of study
  • Integrative Biology
January 2008 - July 2009
Universidad de Chile
Field of study
  • Biological Sciences with mention in Ecology and Evolution
March 2004 - December 2007
Universidad de Chile
Field of study

Publications

Publications (45)
Article
The homology of the arachnid chelicera with respect to other head appendages in Panarthropoda has long been debated. Gene expression data and the re-interpretation of early transitional fossils have supported the homology of the deutocerebrum and its associated appendages, implying a homology between primary antennae (mandibulates), chelicerae (euc...
Article
Spiders can modify their web construction behaviour according to environmental conditions. Here, we examined how the web structure of Tetragnatha tenuissima differentiates depending on habitat type (swamp or river edge) at La Selva Biological Station, Costa Rica. We characterized the web architecture based on length, number of radii, and the spiral...
Article
Full-text available
Latitudinal diversity gradients (LDG) and their explanatory factors are among the most challenging topics in macroecology and biogeography. Despite of its apparent generality, a growing body of evidence shows that ‘anomalous’ LDG (i.e., inverse or hump-shaped trends) are common among marine organisms along the Southeastern Pacific (SEP) coast. Here...
Article
Islands are hotspots of biodiversity and extinction. It is critical to study their unique island life before it is lost forever. The Desventuradas Islands, comprised of San Félix and San Ambrosio islands, are a volcanic archipelago 850 km off the coast of Chile. They are key to understanding the diversification processes which shaped the flora and...
Article
Full-text available
The beetles (Coleoptera) of Lizard Island group, a complex of small granitic islands on the Great Barrier Reef, have never been systematically assessed. In April 2019, we conducted the first survey of the island group across different micro-habitats. We specifically aimed to determine which beetle families are the most diverse, and how beetle diver...
Article
Full-text available
Early in the process of adaptive radiation, allopatric disruption of gene flow followed by ecological specialization is key for speciation; but, do adaptive radiations occur on small islands without internal geographical barriers? Island populations sometimes harbour polymorphism in ecological special-izations, but its significance remains unclear....
Article
Morphological boundaries between species of the maculatipes‐group in the ghost spider genus Sanogasta Mello‐Leitão are ambiguous, and the most widespread species, S. maculatipes, is unusually variable and may represent multiple cryptic species. To resolve these issues, we perform a geometric morphometric analysis on the female genitalia of the grou...
Article
Full-text available
The Isla Sala y Gómez or Motu Motiro Hiva is located 415 km northeast of Rapa Nui (Easter Island) and 3420 km from the coast of northern Chile. It is a small oceanic island (2.5 km 2) dominated by volcanic rock with very little vegetal cover. Here, we describe the first endemic arachnid for the island, Ariadna motumotirohiva sp. nov. Females are si...
Article
We provide a list of coccinellids (Coleoptera: Coccinellidae) species from the island territories of Chile. We report a total of 68 records, coming from ten islands, including 42 species corresponding to more than 35% of the species of the country. This paper presents the first Coccinellidae records for the Islas Desventuradas, Isla Mocha and Isla...
Article
Full-text available
The Juan Fernández islands (Chile) are a volcanic archipelago, 670 km away from the continent. Arachnids still remain understudied in those islands. We report the first two records of Parabalta reedii (Butler, 1874) (Opiliones, Gonyleptidae) from the Robinson Crusoe Island. One specimen was collected near San Juan Bautista town (in 2011), while a p...
Article
Full-text available
Introduction: Small terrestrial invertebrates disperse in a passive manner through wind currents, forming what is known as aerial plankton, which has not been surveyed yet for the Eastern Tropical Pacific. Documenting the aerial plankton of Isla del Coco will allow to better understand the colonization process of this highly diverse island. Objecti...
Article
Full-text available
Article
The achatinellid Pacificella variabilis Odhner, 1922, is reported for the first time since its original description from its type locality, Easter Island (Rapa Nui), South Pacific Ocean, Chile. Specimens were found living on the bark of a lemon tree in Hanga Roa town and among the endemic grass Paspalum forsterianum on Motu Nui Islet. A redescripti...
Article
Full-text available
Background: The processes through which populations originate and diversify ecologically in the initial stages of adaptive radiation are little understood because we lack information on critical steps of early divergence. A key question is, at what point do closely related species interact, setting the stage for competition and ecological specializ...
Article
Full-text available
We used Massively Parallel High-Throughput Sequencing to obtain genetic data from a 145-year old holotype specimen of the flying lizard, Draco cristatellus . Obtaining genetic data from this holotype was necessary to resolve an otherwise intractable taxonomic problem involving the status of this species relative to closely related sympatric Draco s...
Data
ND2 sequence data for members of the Draco fimbriatus group plus 13 mitochondrial sequence reads obtained from the D. cristatellus holotype This file includes ND2 sequence data obtained via traditional Sanger sequencing for 39 individuals representing Draco cristatellus, D. fimbriatus, D. hennigi, D. punctatus, and D. maculatus, plus 183 base pairs...
Preprint
Full-text available
We used Massively Parallel High-Throughput Sequencing to obtain genetic data from a 145-year old holotype specimen of the flying lizard, Draco cristatellus. Obtaining genetic data from this holotype was necessary to resolve an otherwise intractable taxonomic problem involving the status of this species relative to closely related sympatric Draco sp...
Article
Full-text available
Insularity promotes dietary divergence in vertebrates due to changes in biotic parameters as intra-specific competition, predation and resource availability. Liolaemus pictus is a lizard species from Southern Chile that has populations in mainland and insular territories. The aim of this paper was to test the correlation between dietary preferences...
Preprint
Full-text available
We used Massively Parallel High-Throughput Sequencing to obtain genetic data from a 145-year old holotype specimen of the flying lizard, Draco cristatellus . Obtaining genetic data from this holotype was necessary to resolve an otherwise intractable taxonomic problem involving the status of this species relative to closely related sympatric Draco s...
Presentation
Full-text available
Los Arácnidos del la Isla del Coco representan seis órdenes de esta clase y 43 especies, de las cuales, el grupo con mayor representatividad son las arañas (Araneae) con 17 familias y 37 especies, los opiliones (Opiliones) están representados por dos familias y dos especies, los pseudoescorpiones (Pseudoscorpiones) representan una familia con una s...
Article
Full-text available
Rapa Nui is one of the most remote islands in the world. As a young island, its biota is a consequence of both natural dispersals over the last ~1 million years and recent human introductions. It therefore provides an opportunity to study a unique community assemblage. Here, we extract DNA from museum-preserved and newly field-collected spiders fro...
Article
Full-text available
the spiders of rapa nui have not been assessed in over two decades. During this time, additional nonnative alien species introductions would be expected due to increased tourism visitation and the steady influx of commercial goods imported from mainland Chile. Prior to our work, only one endemic species (Tetragnatha paschae Berland, 1924) was known...
Article
Full-text available
Convergent evolution tends to lead to similar phenotypic responses to the same selective pressures. However, when the phenotypic response is polymorphic, it is less clear how evolutionary convergence can lead to parallel diversity across species and populations. The present study focuses on South American spiders in the genus Selkirkiella (Theridii...
Article
Full-text available
The structural origin of the vertebrates' paired limbs is still an unsolved problem. Historically, two hypotheses have been raised to explain the origin of vertebrate limbs: the Archipterygium Hypothesis and the Fin Fold Hypothesis. Current knowledge provides support for both ideas. In the recent years, it has been also suggested that (1) all appen...
Article
Understanding how ecological and evolutionary processes together determine patterns of biodiversity remains a central aim in biology. Guided by ecological theory, we use data from multiple arthropod lineages across the Hawaiian archipelago to explore the interplay between ecological (population dynamics, dispersal, trophic interactions) and evoluti...
Article
Full-text available
Molecular genetic tools have been a boon to arachnologists for decades and used to study many unique aspects of arachnid biology including genomics, phylogenetics, population genetics, and biogeography. These tools have evolved over time and now provide myriad methods for exploring evolutionary questions. Early tools, while still useful under the p...
Presentation
Diversification patterns of Tetragnatha spiders in remote archipelagos on the Pacific Ocean
Article
Full-text available
The influence of phenotypic effects of genetic mutations on molecular evolution is not well understood. Neutral and nearly neutral theories of molecular evolution predict a negative relationship between the evolutionary rate of proteins and their functional importance; nevertheless empirical studies seeking relationships between evolutionary rate a...
Article
Full-text available
Cell division rates and apoptosis sculpt the growing organs, and its regulation implements the developmental programmes that define organ size and shape. The balance between oncogenes and tumour suppressors modulate the cell cycle and the apoptotic machinery to achieve this goal, promoting and restricting proliferation or, in certain conditions, in...

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My question refers to how to prevent viral infection by the pulverization of potential mice fecal material / urine on the leaf litter that is been examined.

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