Xavier Benito-Granell

Xavier Benito-Granell
University of Maryland, College Park | UMD, UMCP, University of Maryland College Park · National Socio-Environmental Synthesis Center (SESYNC)

PhD

About

36
Publications
16,594
Reads
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241
Citations
Introduction
My research interests lie on the interface of limnology, palaeocology and biogeography. As aquatic ecologist and environmental scientist, I'm deeply motivated in studying aquatic ecosystems through socio-environmental lens. More info: www.xavierbenito.com
Additional affiliations
October 2011 - October 2015
Universitat Rovira i Virgili
Position
  • PhD Student
October 2011 - June 2016
IRTA Institute of Agrifood Research and Technology
Position
  • PhD Student

Publications

Publications (36)
Article
Present-day altered distribution of the natural habitats in the Ebro Delta is consequence of intensive human settlement in the last two centuries. We developed spatial predictive models of potential natural wetland habitats of the Ebro Delta based on ecogeographical predictors and presence/ pseudo-absence data for each habitat. The independent vari...
Data
Data presented in the manuscript "Women in Limnology: from a historical perspective to a present-day evaluation", authored by the Gender and Science Group of the Iberian Association of Limnology and published in the journal WIREs Water in 2022. There is two datasets: Annex1: Table containing the name, bibliography and relevant contributions of 7...
Article
Anthropogenic climate change and landscape alteration are two of the most important threats to the terrestrial and aquatic ecosystems of the tropical Americas, thus jeopardizing water and soil resources for millions of people in the Andean nations. Understanding how aquatic ecosystems will respond to anthropogenic stressors and accelerated warming...
Article
Full-text available
Little is known about whether changes in lake ecosystem structure over the past 150 years are unprecedented when considering longer timescales. Similarly, research linking environmental stressors to lake ecological resilience has traditionally focused on a few sentinel sites, hindering the study of spatially synchronous changes across large areas....
Article
Full-text available
The PAGES Early-Career Network (ECN; pastglobalchanges.org/ecn) was developed to create a permanent platform for earlycareer researchers (ECRs) to exchange ideas, perform outreach, engage in skill development, and find collaborations among fellow ECRs within PAGES.
Article
Humans have been present in the Andes since about 12,000 calibrated years before present (cal yr BP), transitioning from hunter-gatherers to agropastoralist societies in the mid-Holocene. Yet, the timing and effects of this change in behavior on the ecosystem are largely unknown. Using titanium from XRF analysis, loss-on-ignition (LOI), fossil poll...
Article
Full-text available
High-elevation tropical lakes are excellent sentinels of global change impacts, such as climate warming, land-use change, and atmospheric deposition. These effects are often correlated with temporal and spatial beta diversity patterns, with some local communities contributing more than others, a phenomenon known as local contribution to beta divers...
Chapter
Ecology can be defined as the study of causes that govern the distribution and abundance of organisms and their relation to the environment. Among benthic microorganisms (10 μm–500 mm), diatoms and foraminifera are of great importance in aquatic ecosystems worldwide because (1) their species react in a rapid and sensitive way to environmental chang...
Chapter
Determining the mechanisms of community assembly forms the foundation of biogeography and community ecology. Studies of the biodiversity of Neotropical macro-organisms have recognized the roles of environmental, spatial, and historical factors in structuring communities at different spatial and temporal scales, but the influences on microorganisms...
Poster
Full-text available
A tale of research data frustration. We sought to characterize short-term change in diatom communities between two time points, 1980 and 2017. We received diatom presence-absence data from the 1980s and used NMDS to compare it to diatom abundance data in 2017. Here, in this poster I describe the possible reasons for the data discrepancies. For a fu...
Article
Aim Lakes in the Ecuadorean Andes span different altitudinal and climatic regions, from inter Andean plateau to the high‐elevation páramo, which differ in their historical evolution in the several centuries since the pioneering Humboldt expeditions. Here, we evaluate temporal and spatial patterns of change in diatom assemblages between historical (...
Article
Full-text available
Understanding and managing the responses of natural systems to climate change requires knowing whether recent changes in ecosystem structure and function are within the bounds of natural variation or whether the systems are entering new states that are unprecedented. Several recent studies of the fossil diatom record of the last ~ 150 years in Ande...
Article
River deltas are ecologically and economically valuable coastal ecosystems but low elevations make them extremely sensitive to relative sea level rise (RSLR), i.e. the combined effects of sea level rise and subsidence. Most deltas are subjected to extensive human exploitation, which has altered the habitat composition, connectivity and geomorpholog...
Article
Full-text available
Lakes and their topological distribution across Earth's surface impose ecological and evolutionary constraints on aquatic metacommunities. In this study, we group similar lake ecosystems as metacommunity units influencing diatom community structure. We assembled a database of 195 lakes from the tropical Andes and adjacent lowlands (8°N-30°S and 58-...
Article
Full-text available
Patterns that maintain and generate biodiversity of macro-organisms in the Neotropics are widely discussed in the scientific literature, yet the spatial ecology of micro-organisms is largely unknown. The unique character of the tropical Andes and adjacent Amazon lowlands generates a wide gradient of environmental conditions to advance our understan...
Article
Uplift of the Altiplano in the Central Andes of South America had profound effects on land, oceans and atmosphere. Very little, however, is known about the ecosystems that developed on the ecospaces first formed once the Altiplano reached its present high altitude. We present a micropaleontological (diatoms and ostracods) and stratigraphic analysis...
Article
A previously unknown member of the Bacillariaceae was discovered almost simultaneously in four different brackish coastal wetlands on the Atlantic and Mediterranean coasts of the Iberian Peninsula. It appears to tolerate a wide range of salinities but was never common in samples where it occurred. The frustules were consistently hantzschioid (i.e....
Article
Major Mediterranean deltas began to develop during a period between 8000 and 6000 yr BP when the rate of fluvial sediment input overtook the declining rate of sea-level rise. However, different authors have argued that the Ebro Delta primarily formed during the late Middle Ages as a consequence of increased anthropogenic pressure on its river basin...
Thesis
In five chapters, this thesis combines the study of present, past and future habitats of the Ebro Delta, one of the largest coastal wetlands in the northwest Mediterranean. Different approaches are applied in each of the three temporal scales: i) in the present, the utility of benthic diatoms and foraminifera as ecological indicators of the Ebro De...
Article
The contemporary distribution of benthic diatoms and their use as ecological indicators were examined in a coastal wetland, the Ebro Delta, as a representative of environmental conditions in Mediterranean coastal wetlands. A total of 424 diatom taxa were identified across 24 sites encompassing a wide range of wetland habitat types (coastal lagoons,...
Conference Paper
Our study combines modern foraminiferal distribution from a Mediterranean wetland (the Ebro Delta, NE Iberian Peninsula) and their present-day environmental requirements as a basis for interpreting the Holocene fossil record in the context of the natural and anthropogenic changes occurred in this coastal area through time. The benthic foraminiferal...
Conference Paper
Full-text available
Our study combines modern foraminiferal distribution from a Mediterranean wetland (the Ebro Delta, NE Iberian Peninsula) and their present-day environmental requirements as a basis for interpreting the Holocene fossil record in the context of the natural and anthropogenic changes occurred in this coastal area through time. The benthic foraminiferal...
Article
Estudi sobre la població d’amfibis al Pla de l’Estany, aprofundint en els aspectes que influeixen en la seva fluctuació i proposta d’un pla de monitoratge Naturen Estudis ambientals, S.L.

Questions

Questions (2)
Question
The Fisher Information (FI) has been widely applied to ecological, economic and social systems to analyze dynamic order in multivariate data, including regimes and abrupt transitions (aka regime shifts). While software in literature to compute FI include MATLAB and Phyton (https://github.com/csunlab/fisher-information), I'm wondering if there are available R packages/funtions for calculation. Thanks!
Xavier
Question
Dear colleagues,
I have in mind to perform a multivariate ordination of diatom community data where the response variable would be species richness or some measure of diversity. The idea is to disentangle quantitatively the explained variability into different components (environmental, spatial). Given the structure of a biological matrix where sites (rows) are observations and species (columns) are variables, I'm wondering how some analysis (see references below) do multivariate constrained ordinations (e.g. RDA) regressing species richness or diversity, and then only 1 variable, with different explanatory variables.
Perhaps this question is meaningless, but if some of you could provide some light I would be grateful.
Best regards, Xavier
Ref: Vyverman et al. 2007 Historical processes constrain patterns in glibal diatom diversity Ecology 88(8): 1924-1931
Verleyen et al 2008 The importance of dispersal related and local factors in shaping the taxonomic structure of diatom metacommunities Oikos 118: 1239-1249

Network

Cited By

Projects

Projects (5)
Project
Understanding the underlying causes and implications of the current changes in climate and adaptations necessary for resilient tropical forest call for interdisciplinary approaches to understanding how to best preserve tropical forests. The project aims to bring together researchers – from the U21 network – from the fields of paleoecology, archaeology, forest ecology and social sciences to understand the challenges that the tropical forest biome is facing from the perspective of different disciplines and how this information can guide our response to current climate change.
Project
My project at SESYNC revolves on questions related to resilience theory using paleoecological time series. The overarching project's question is: what insights do abrupt transitions in the palaeoenvironmental record provide about the critical stressors and ecosystem response that give rise to the current state of Andean socio-ecological systems?
Project
The Early-Career Network (ECN) of Past Environmental Global Changes (PAGES) aims to facilitate the exchange of ideas and skill sets in order to give early-career researchers the tools to excel in their research fields. The PAGES ECN will aid in the dissemination of information, establish vital scientific networks, and foster the development of ideas that can lead to future research collaborations and improved job prospects.