Yusdiel Torres-Cambas- MSc, PhD
- PostDoc Position at Leibniz Institute of Freshwater Ecology and Inland Fisheries
Yusdiel Torres-Cambas
- MSc, PhD
- PostDoc Position at Leibniz Institute of Freshwater Ecology and Inland Fisheries
Alexander von Humboldt postdoc fellow
About
40
Publications
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Introduction
I am a biologist interested in systematics, biodiversity informatics, global change biology and conservation biology.
During my PhD research, I have focused on the insect order Odonata (dragonflies and damselflies) as model organisms.
At present, I am an Alexander von Humboldt Postdoc, working on spatial conservation planning across Cuba considering freshwater biodiversity and ecosystem services under present-day conditions and global change scenarios.
Current institution
Additional affiliations
January 2022 - May 2022
Position
- PostDoc Position
Description
- Alexander von Humboldt Postdoc, working on spatial conservation planning across Cuba considering freshwater biodiversity and ecosystem services under present-day conditions and global change scenarios.
September 2006 - May 2022
Publications
Publications (40)
1. The evolutionary advantages that have driven the evolution of sex are still very much debated, and a number of benefits of parthenogenesis over sexual reproduction have been proposed. In particular, parthenogenetic individuals are thought to exhibit higher probabilities of establishment following arrival in new, isolated habitats such as islands...
Hypolestes (Odonata, Zygoptera) is a damselfly genus endemic to the Greater Antilles. The genus comprises three species: H. clara from Jamaica, H. trinitatis from Cuba, and H. hatuey from Hispaniola, which are currently evaluated by the IUCN as Endangered (EN), Vulnerable (VU) and Data Deficient, respectively. Here, we re-assess the conservation st...
Both sexes of Hypolestes hatuey Torres-Cambas, sp. nov. (Odonata: Zygoptera: Hypolestidae) from Hispaniola are described and illustrated here. This newly described species differs from H. trinitatis and H. clara, the other two species within the genus, by the morphology of the genital ligula and male cerci. Females of H. hatuey sp. nov. differ from...
Microneura caligata (Hagen in Selys, 1886) is an endangered damselfly presently known from five localities in the central mountains of Cuba. The precise systematic position of this species within the former Neotropical Protoneuridae has been the subject of debate, with previous results from a phylogenetic analysis based on morphology suggesting tha...
While phylogeographic data provide valuable information to inform conservation plans, there are comparatively few Odonata phylogeographic studies. This lack of research is partially due to a lack of independent DNA markers with appropriate levels of polymorphism that PCR-amplify in a range of species. We followed an exon-primed, intron-crossing (EP...
Freshwater ecosystems are characterized by their unique longitudinal and lateral habitat connectivity. As a result, spatial units in freshwater-specific analyses can often not be considered independent of each other. Accounting for this connectivity in modelling analyses requires advanced skills in Geographic Information Systems (GIS) for adequatel...
Freshwater ecosystems increasingly face pressures from climate change induced extreme events, like droughts, posing significant threats to biodiversity. While Species Distribution Models (SDMs) serve as vital tools for predicting species responses to environmental shifts, their transferability to novel environmental conditions, especially during an...
Freshwater ecosystems are considered biodiversity hotspots, but assessing the spatial distribution of species remains challenging. One major obstacle lies in the complex geospatial processing of large amounts of data, such as stream network, sub‐catchment and basin data, that are necessary for addressing the longitudinal connectivity among water bo...
In light of the ongoing freshwater biodiversity crisis, detailed knowledge regarding the spatial distribution of freshwater species is urgently required, especially in biodiversity hotspots. Here we present a database of georeferenced occurrence records of four freshwater invertebrate taxa groups across Cuba, namely flatworms (Platyhelminthes: Tric...
Motivation
Aquatic insects comprise 64% of freshwater animal diversity and are widely used as bioindicators to assess water quality impairment and freshwater ecosystem health, as well as to test ecological hypotheses. Despite their importance, a comprehensive, global database of aquatic insect occurrences for mapping freshwater biodiversity in macr...
Motivation: Aquatic insects comprise 64% of freshwater animal diversity and are
Motivation: Aquatic insects comprise 64% of freshwater animal diversity and are widely used as bioindicators to assess water quality impairment and freshwater ecosystem health, as well as to test ecological hypotheses. Despite their importance, a comprehensive, global database of aquatic insect occurrences for mapping freshwater biodiversity in mac...
Introducción.
Las libélulas son insectos depredadores y hemimetábolos, que conforman el orden Odonata con aproximadamente 6000 especies, agrupadas en 2 subórdenes. El presente estudio tuvo como objetivos caracterizar y actualizar la sistemática del orden Odonata, la distribución geográfica y temporal; caracterizar además, la diversidad genética, ec...
The endemic mayfly Poecilophlebia pacoi Kluge,1994 was described for Turquino massif, Sierra Maestra mountain range, Cuba. So far it was known only from two river catchments within this country. Distribution of Poecilophlebia pacoi extends up to Gran Piedra massif of Sierra Maestra mountain range. The main distinguishing morphological characteristi...
Freshwater ecosystems are among the most biodiverse and the most important providers of services to humans globally. Unfortunately, these ecosystems are also among the most threatened in the world due to human induced land use/land cover change and climate change. Protected areas constitute a worldwide established tool to preserve biodiversity. How...
The Xanthomonadaceae family comprises the genera Xanthomonas and Xylella, which include plant pathogenic species that affect economically important crops. The family also includes the plant growth-promoting bacteria Pseudomonas geniculata and Stenotrophomonas rhizophila, and some other species with biotechnological, medical, and environmental relev...
This study describes the fauna of odonates of nine localities in the Zapata peninsula in the Southwest of Cuba,. We failed to find Enallagma truncatum, an endemic species of the area, even though we visited the type locality, Zarabanda, in June and January. We found 37 species in 25 genera and five families, including the first records of 11 taxa f...
Wolbachia is one of the most common endosymbionts found infecting arthropods. Theory predicts symbionts like Wolbachia will be more common in species radiations, as host shift events occur with greatest frequency between closely related species. Further, the presence of Wolbachia itself may engender reproductive isolation, and promote speciation of...
Several species of biting midges of the genus Forcipomyia are frequently found attached to the wings of adult odonates, acting as parasites by sucking haemolymph from the wing veins. Here we report the first finding of F. incubans on odonates in the peninsula of Zapata, Cuba. We found the midge on the wings of Erythrodiplax simplicicollis, E. umbra...
We have examined divergence times of the Antillean damselfly genus Hypolestes, to elucidate which mechanism of allopatric speciation, vicariance or long-distance dispersal, could better explain the currently observed disjunct distributions of this genus. Samples of the three extant species of the genus, Hypolestes clara (Jamaica), H. hatuey (Hispan...
We tested whether hardness or different wood carbon densities, consid-
eredastheconcentrationofcarbonstructuralcompounds,influencefunc-
tional feeding groups and species richness of aquatic insects in a tropical
stream. We expected that harder woods would harbor aquatic insect
communities with species richness and functional food group profile dif-...
Species classification may not reflect the underlying/cryptic genetic diversity which should otherwise be
conserved as it represents the potential of populations to evolve and adapt. The identification of
evolutionarily significant units (ESUs) allows cryptic genetic diversity to be taken into account when
designating conservation priorities. Here,...
Both sexes of Hypolestes hatuey Torres-Cambas, sp. nov. (Odonata: Zygoptera: Hypolestidae) from Hispaniola are described and illustrated here. This newly described species differs from H. trinitatis and H. clara, the other two species within the genus, by the morphology of the genital ligula and male cerci. Females of H. hatuey sp. nov. differ from...
The Antilles harbour several island endemic odonate species, including some palaeoendemics, within a relatively small and anthropized area. Such attributes give this archipelago a special significance for the conservation of Odonata in the Neotropics. However, despite the importance of these islands, inadequately surveyed regions persist, mainly in...
It has been hypothesized that sperm removal ability in male Odonata (damselflies and dragonflies) has promoted sexual conflict over the sperm stored in the reproductive tract of the female. Although there is evidence supporting this hypothesis, most studies have been conducted in a small number of species from specific families. We explored sperm r...
Male-biased sex ratios in adult odonate populations have been the subject of vigorous discussion between the students of this
order of insects. The debate has centered on whether the observed male bias in many populations is real, perhaps due to unequal
survival rates, or whether it is an artifact caused by differences in recapture probabilities. A...
Monopelopia tillandsia (Diptera: Chironomidae: Tanypodinae) is recorded for the first time in Cuba and the Neotropical region. Specimens of the larval stage were collected in three species of bromeliads and reared in the laboratory until the adult stage. M. tillandsia is distributed in central and western Cuba.
The study was conducted at the Dos Bocas stream nr Santiago de Cuba, during Aug.-Sept. 2007 (30 d) and in May 2008 (5 d). ♂ ♂ are territorial, defending perching sites and returning to the same place for several days. Sperm translocation lasted about 9 s and copulation about 7.3 min. It consisted of 2 stages, recognized from the position and moveme...
The reproductive behavior is described from 2 populations on the outskirts of Santiago de Cuba, between June 2005 and May 2006. ♂ ♂ started arriving at the water body in the morning nearly 2 h before ♀ ♀. Sperm translocation was brief (less than 30 s), and the duration of copulation averaged about 18 min. During oviposition the ♀ was guarded in tan...
Resumen: Se caracteriza la variación estacional de la actividad reproductiva de Protoneura capillaris en un arroyo del poblado de Dos Bocas, Santiago de Cuba. Se registró la presencia de parejas en oviposición una vez por mes desde junio de 2005 hasta mayo de 2006. En febrero (periodo poco lluvioso) y mayo (periodo lluvioso) de 2006 se hicieron obs...
Se realizó un estudio del comportamiento de oviposición de la especie endémica cubana Protoneura capillaris (Rambur, 1842) en el arroyo Dos Bocas, al norte de la ciudad de Santiago de Cuba. Las observaciones se realizaron entre el 9 y el 20 de junio del 2004 de las 08:00 a las 16:00 h. tiempo local. Se observó un pico de actividad ovipositora entre...
Questions
Questions (9)
Alguien, por favor, me puede facilitar este libro: "Historia de las Áreas Protegidas en Cuba". Supuestamente está disponible en el sitio del SNAP (http://www.snap.cu/), pero al parecer el hipervínculo de descarga no funciona
The projection of species distribution in the future using SDM is influenced by the General Circulation Model (GCM) chosen to make future environmental variables used in the SDM. For example, WorldClim provides a series of bioclimatic variables for a series of GCMs. Which of these GCMs would be the best representation of the future climate in the Caribbean?
Would you like to use dragonflies and damselflies also?
Could you please suggest a bibliographic reference about it?
Hello,
I want to infer species divergence time in a damselfly genus Hypolestes. This is an isolated genus from the point of view of its phylogeny and there is not known fossils that allow the selection of a calibration point. Therefore I am considering use an insect mitochondrial mutation rate of 2.3% per million of year to estimate divergence time. I choose *BEAST to reconstruct the phylogeny because I have data from multiple loci and I want to avoid concatenating. I would like to know if it is possible to transform the branch length of a tree obtained with *BEAST in absolute time using a standard insect mitochondrial mutation rate and how.
Hello,
I want to estimate genetic divergence corrected with the nucleotide substitution model HKY. This model was selected as the most parsimonious with jModelTest. I tried with Mega 5.1 but HKY is not one the models included to compute distances.
Hi everyone, I want to know the ancestral geographic range in a phylogeny of an insect genus. The genus includes three allopatric species endemic from three different islands. Could anyone please suggest the best method to achieve this goal? I have both nuclear and mitochondrial DNA sequences for two populations in one species and four populations for each of the remaining species.
Thanks in advance
Hello, can anybody please tell an alternative to AUC for assessing performance of species distribution models?
