Miguel Fernández

Miguel Fernández
German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig | iDiv

PhD

About

44
Publications
36,283
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1,622
Citations

Publications

Publications (44)
Article
Full-text available
Documenting temporal trends in the extent of ecosystems is essential to monitoring their status but combining this information with the degree of protection helps us assess the effectiveness of societal actions for conserving ecosystem diversity and related ecosystem services. We demonstrated indicators in the Tropical Andes using both potential (...
Article
Full-text available
Comprehensive assessments of species’ extinction risks have documented the extinction crisis and underpinned strategies for reducing those risks. Global assessments reveal that, among tetrapods, 40.7% of amphibians, 25.4% of mammals and 13.6% of birds are threatened with extinction. Because global assessments have been lacking, reptiles have been o...
Article
Full-text available
Comprehensive assessments of species’ extinction risks have documented the extinction crisis and underpinned strategies for reducing those risks. Global assessments reveal that, among tetrapods, 40.7% of amphibians, 25.4% of mammals and 13.6% of birds are threatened with extinction. Because global assessments have been lacking, reptiles have been o...
Preprint
Full-text available
In this report, we present the analysis of the different available biodiversity data streams at the EU and national level, both baseline biodiversity data and monitoring data. We assess how these biodiversity data inform and trigger policy action and identify the related challenges the different European countries and relevant EU agencies face and...
Preprint
Full-text available
Observations are key to understand the drivers of biodiversity loss, and the impacts on ecosystem services and ultimately on people. Many EU policies and initiatives demand unbiased, integrated and regularly updated biodiversity and ecosystem service data. However, efforts to monitor biodiversity are spatially and temporally fragmented, taxonomical...
Article
Full-text available
Land-use change has a direct impact on species survival and reproduction, altering their spatio-temporal distributions. It acts as a selective force that favors the abundance and diversity of reservoir hosts and affects host–pathogen dynamics and prevalence. This has led to land-use change being a significant driver of infectious diseases emergence...
Article
Monitoring global biodiversity from space through remotely sensing geospatial patterns has high potential to add to our knowledge acquired by field observation. Although a framework of essential biodiversity variables (EBVs) is emerging for monitoring biodiversity, its poor alignment with remote sensing products hinders interpolation between field...
Chapter
We present an analysis of the biodiversity knowledge–implementation continuum in one of the most biologically and culturally diverse regions on the planet, South America. This chapter focuses on interactions between data producers and users, synergies and gaps in information flow between data production and decision-making processes, drawing on a s...
Article
Full-text available
Biodiversity is suffering dramatic declines across the globe, threatening the ability of ecosystems to provide the services on which humanity depends. Mainstreaming biodiversity into the plans, strategies and policies of different economic sectors is key to reversing these declines. The importance of this mainstreaming is recognized by the Conventi...
Article
Full-text available
Species distributions and abundances are undergoing rapid changes worldwide. This highlights the significance of reliable, integrated information for guiding and assessing actions and policies aimed at managing and sustaining the many functions and benefits of species. Here we synthesize the types of data and approaches that are required to achieve...
Article
Full-text available
Biodiversity is being lost at an unprecedented rate, and monitoring is crucial for understanding the causal drivers and assessing solutions. Most biodiversity monitoring data are collected by volunteers through citizen science projects, and often crucial information is lacking to account for the inevitable biases that observers introduce during dat...
Preprint
Full-text available
While many observations of species are being collected by citizen science projects worldwide, it can be challenging to identify projects collecting data that effectively monitor biodiversity. Over the past several years the allure of taking a big data approach has provided the opportunity to gather massive quantities of observations via the Interne...
Article
Full-text available
Restoration ecology is gaining momentum on the international conservation scene. In particular, restoring degraded ecosystems is central to Aichi Biodiversity Targets 14 and 15 set by the Convention on Biological Diversity. Depending on the definition of degradation, from 2 to 47% of the global land surface could require restoration. Here, we revie...
Article
Full-text available
The concept of essential biodiversity variables (EBVs) was proposed in 2013 to improve harmonization of biodiversity data into meaningful metrics. EBVs were conceived as a small set of variables which collectively capture biodiversity change at multiple spatial scales and within time intervals that are of scientific and management interest. Despite...
Article
Full-text available
Much biodiversity data is collected worldwide, but it remains challenging to assemble the scattered knowledge for assessing biodiversity status and trends. The concept of Essential Biodiversity Variables (EBVs) was introduced to structure biodiversity monitoring globally, and to harmonize and standardize biodiversity data from disparate sources to...
Article
Full-text available
Managing biological invasions relies on good global coverage of species distributions. Accurate information on alien species distributions, obtained from international policy and cross-border cooperation , is required to evaluate trans-boundary and trading partnership risks. However, a standardized approach for systematically monitoring alien speci...
Book
Full-text available
The Essential Biodiversity Variables (EBV) concept proposed by GEO BON, Space Agencies, and the Earth Observation research community at large aims to support efforts for biodiversity monitoring. GOFC-GOLD and GEO BON propose a new sourcebook to promote the best operational monitoring practices for the relevant EBVs based on scientific literature, a...
Chapter
Full-text available
Authors In addition to the core editors, a number of international experts in remote sensing, and biodiversity field measurement have contributed to the development of the Sourcebook and are thankfully acknowledged for their support. This Sourcebook is the result of a joint voluntary effort from more than 70 contributing authors from different inst...
Article
The essential biodiversity variables (EBV) framework was developed primarily to improve the detection of significant changes in global biodiversity. Its application at national level must support county-specific policy and management needs as well as allowing comparisons of estimates of biodiversity change between countries and their aggregation fo...
Article
Full-text available
Essential Biodiversity Variables (EBVs) consolidate information from varied biodiversity observation sources. Here we demonstrate the links between data sources, EBVs and indicators and discuss how different sources of biodiversity observations can be harnessed to inform EBVs. We classify sources of primary observations into four types: extensive a...
Article
Full-text available
Managing biological invasions relies on good global coverage of species distributions. Accurate information on alien species distributions, obtained from international policy and cross-border cooperation , is required to evaluate trans-boundary and trading partnership risks. However, a standardized approach for systematically monitoring alien speci...
Article
Full-text available
Although satellite-based variables have for long been expected to be key components to a unified and global biodiversity monitoring strategy, a definitive and agreed list of these variables still remains elusive. The growth of interest in biodiversity variables observable from space has been partly underpinned by the development of the essential bi...
Article
Full-text available
Pragmatic methods to assess the status of biodiversity at multiple scales are required to support conservation decision-making. At the intersection of several major biogeographic zones, Bolivia has extraordinary potential to develop a monitoring strategy aligned with the objectives of the Group on Earth Observations Biodiversity Observation Network...
Conference Paper
Full-text available
Insects dominate terrestrial biodiversity in terms of species numbers and biomass and are integral to ecosystem function. Yet there is a dearth of information on their conservation status and population trends - in particular at the global scale. Central to addressing biodiversity loss are appropriate policies, plans and actions at local, national...
Article
Full-text available
Studies that model the effect of climate change on terrestrial ecosystems often use climate projections from downscaled Global Climate Models (GCMs). These simulations are generally too coarse to capture patterns of fine scale climate variation, such as the sharp coastal energy and moisture gradients associated with wind-driven upwelling of cold wa...
Article
Full-text available
Species distribution modeling is widely applied to predict invasive species distributions and species range shifts under climate change. Accurate predictions depend upon meeting the assumption that ecological niches are conserved, i.e., spatially or temporally transferable. Here we present a multi-taxon comparative analysis of niche conservatism us...
Article
Full-text available
Species distribution models (SDMs) are used to generate hypotheses regarding the potential distributions of species under different environmental conditions, such as forecasts of species range shifts in response to climate change and predictions of invasive species range expansions. However, an accurate description of species' geographic ranges as...
Article
Full-text available
Our understanding of how species will respond to global change is still limited. Reasons hindering our ability to forecast species range shifts and expansions are the mismatch between realized climate niches in species’ native and invasive ranges, and the lack of available climatic datasets offering multiple scales of climatic variability (e.g., mo...
Article
Full-text available
Emerging infectious diseases (EIDs) pose a significant threat to human health, economic stability, and biodiversity. Despite this, the mechanisms underlying disease emergence are still not fully understood, and control measures rely heavily on mitigating the impact of EIDs after they have emerged. Here, we highlight the emergence of a zoonotic Heni...
Article
Full-text available
Locality data available for many, if not most, species of Neotropical frogs are based on written descriptions of the collecting sites, not on GPS device determined coordinate data. The pre-GPS device data are imprecise relative to GPS data. Niche modeling is a powerful technique for predicting geographic distributions that provides the best results...
Article
Full-text available
We address a poorly understood aspect of ecological niche modeling: its sensitivity to different levels of geographic uncertainty in organism occurrence data. Our primary interest was to assess how accuracy degrades under increasing uncertainty, with performance measured indirectly through model consistency. We used Monte Carlo simulations and a si...
Article
Over the past hundred years, the human population has increased from one to six billion human beings. As a result, the pressure to squeeze this little planet of ours for more food, water, and fuel has increased. Therefore, managing the limited natural resources of the Earth has emerged as perhaps the most crucial problem faced by humanity. Fortunat...

Questions

Questions (4)
Question
I am about to start a small project where I am trying to provide a single metric for every MODIS tile that describes what is the information density for it in relationship to adjacent tiles. In other words, how many times, in the full MODIS record that particular tile has been "photographed" by the sensor compared to other tiles. If each tile has been sensed (raw data) and archived evenly, one could argue that the quality of the derived products, based on the density of information is similar. Thank you for any insights!
Question
 The Group on Earth Observations Biodiversity Observation Network (GEO BON) is trying to find the best venue for research papers related to the Essential Biodiversity Variables (EBVs; Pereira et al., 2013, Science). This dynamic special issue should allow researchers from around the world to submit manuscripts for review at any time. And if the manuscript is accepted, it should become part of a dynamic special issue on EBVs.
In this context, I would appreciate any advice regarding which journal(s) should we approach to support GEO BON for this dynamic special issue on Essential Biodiversity Variables and why.
Thank you in advance!
Question
I am trying to use the three epochs from GlobCover product to evaluate the transition from one land cover class to another. What I want to get by analyzing these three rasters is a new raster that has one single value for pixels that have remained as the original class in the first time slice, and a different value for the pixels that have changed into something else in any of the subsequent time slices.
I am not very familiar with this product and I if there are any limitations to do what I need I would be grateful for any advice.
Thank you
Question
What would be the appropriate temporal resolution (e.g., 1900 to 2015)?
What would be the appropriate spatial resolution (e.g., 1km2)?
What variables are desirable (e.g., temperature, precipitation, water deficit, etc.)?
Is it important to have also a layer that characterizes uncertainty?
Is it important to have access to the point data used in the interpolation?

Projects

Projects (2)
Project
The objective of the proposed thematic assessment of invasive alien species and their control is to assess: - the array of such species that affect biodiversity and ecosystem services; - the extent of the threat posed by such species to various categories of biodiversity and ecosystem services, including impacts on agrobiodiversity and food, human health and livelihood security; - the major pathways for and drivers of the introduction and spread of such species between and within countries; - the global status of and trends in the impacts of such species and associated management interventions by region and subregion, taking into account various knowledge and value systems; - the level of awareness of the extent of invasive alien species and their impacts; and - the effectiveness of current international, national and subnational control measures and associated policy options that could be employed to prevent, eradicate and control invasive alien species.