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Fernando Ascensão

Fernando Ascensão
Ce3C - Centre for Ecology, Evolution and Environmental Changes - FCUL, Portugal

PhD

About

121
Publications
41,984
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1,585
Citations
Additional affiliations
January 2012 - present
University of Lisbon

Publications

Publications (121)
Article
Full-text available
For several species, roadkill is not spatially aggregated on hotspots, having instead a more diffuse pattern along the roads. For such species, management measures such as road passages may be insufficient for effective mitigation, since a large part of the road crossings is likely to occur outside the influence of those structures. One complementa...
Article
Electrocution can pose a serious threat to large birds, particularly to threatened species with low population sizes. However, few studies have focused on the impacts of electrocution on large parrots such as the Endangered Lear’s Macaw (Anodorhynchus leari), endemic to the Brazilian Caatinga. Here, we compile and describe 31 electrocution events,...
Article
Full-text available
Primates, represented by 521 species, are distributed across 91 countries primarily in the Neotropic, Afrotropic, and Indo-Malayan realms. Primates inhabit a wide range of habitats and play critical roles in sustaining healthy ecosystems that benefit human and nonhuman communities. Approximately 68% of primate species are threatened with extinction...
Article
Motor vehicle collisions (MVCs) are a severe threat to wildlife biodiversity worldwide and most vertebrate species are at risk. However, there is a considerable knowledge gap on the traumatic features and potential patterns of MVCs in wildlife. We investigated traumatic injuries (TIs) caused by MVCs (MVCs-TIs) in 430 neotropical wild mammals repres...
Article
Full-text available
Human activity is depleting biodiversity, and road networks are directly contributing to this trend due to roadkill. Nevertheless, few studies empirically estimated the impact of roadkill on wildlife populations. We integrated information on roadkill rates, population abundance, and animal movement to estimate the survival rates and the proportion...
Article
Economic analysis has produced ample insights on how international trade and climate policy interact (1). Trade presents both opportunities and obstacles, and invites the question of how domestic climate policies can be effective in a global economy integrated through international trade. Particularly problematic is the potential relocation of prod...
Article
Full-text available
Mammals are threatened worldwide, with ca. 26% of all species being included in the IUCN threatened categories. This overall pattern is primarily associated to habitat loss or degradation, and human persecution for terrestrial mammals, and pollution, open net fishing, climate change and prey depletion for marine mammals. Mammals play a key role in...
Article
Full-text available
Assessing the road effects on biodiversity is challenging because impacts may depend on both wildlife responses to roads and on the spatial arrangement of roads. We questioned whether an increase in road encroachment leads to significant changes in species occurrence and community composition. Using a large citizen-science dataset of point-counts p...
Article
Aim Identify environmental and anthropogenic drivers of alpha‐ and beta‐diversity for native and alien plant species. Río de la Plata grasslands, South America (Argentina, Brazil and Uruguay; ‐27.3/‐39.1 latitude, ‐50.1/‐66.5 longitude). Methods We assembled a dataset of 597 vegetation plots distributed across the Río de la Plata grasslands. To a...
Article
Full-text available
Electrocution on power lines is an important human‐related cause of bird mortality and an important conservation issue worldwide. Besides impacts on bird populations, electrocutions cause power outages, resulting in damage to power line network integrity. However, there is a general lack of knowledge on the risk of bird electrocution, especially in...
Chapter
The consequences for the climate and life on Earth are completely disparate depending on how BRI partners pursue their development: whether duplicating China’s coal-based pathway or investing in renewable energy technology.
Article
Full-text available
Approximately 65% of primate species are facing extinction, with threats including the impacts of linear infrastructures such as roads, railways, and power lines, associated with habitat loss and fragmentation, direct and indirect mortality, and changes in animal behavioral patterns. Nevertheless, this is an often-overlooked topic in primatology, a...
Preprint
Full-text available
Human activity is depleting biodiversity, and road networks are directly contributing to this trend due to roadkill. Nevertheless, few studies empirically estimated the impact of roadkill on wildlife populations. We integrated information on roadkill rates, population abundance, and animal movement to estimate the survival rates and the proportion...
Preprint
Full-text available
Assessing the road effects on biodiversity is challenging because impacts may depend on both wildlife responses to roads and on the spatial arrangement of roads. We questioned whether an increase in road encroachment i.e., the advancement of roads into non-urban areas, leads to significant changes (positive and negative) in species occurrence, and...
Article
Full-text available
The global road network is rapidly growing associated with human economic development. This growthalso entails a high toll for biodiversity, with several well-documented negative impacts on differentspecies. However, there is still a great lack of knowledge about the effects of roads on the persistenceof wildlife populations. Here, we aimed to summ...
Article
Full-text available
A data set of terrestrial, volant, and marine mammal occurrences in Portugal
Article
Wildlife‐vehicle collisions (WVCs) represent a serious source of mortality for many species, threatening local populations’ persistence while also carrying high economic and human safety costs. Animals may adapt their behaviour to road‐associated threats, but roadside resources can also attract individuals to dangerous roadside habitats, ultimately...
Article
Full-text available
Systematic road-kill surveys are useful to study the impact of roads on wildlife. However, they are time- and budget-consuming, so the use of non-systematic data in road ecology is currently gaining popularity (for instance, by environmental consultants). Some data sources such as atlases (i.e., compilations of species records from a given region),...
Preprint
Full-text available
Wildlife-vehicle collisions (WVC) represent a serious source of mortality for many species, threatening local populations’ persistence while also carrying a high economic and human safety cost. Animals may adapt their behaviour to road associated threats, but roadside resources can act as attractants, providing misleading signals about the quality...
Article
Full-text available
We present a dataset that assembles occurrence records of alien tetrapods (amphibians, reptiles, birds and mammals) in the Iberian Peninsula, a coherent biogeographically unit where introductions of alien species have occurred for millennia. These data have important potential applications for ecological research and management, including the asses...
Article
Wildlife vehicle collisions (WVC) are a threat to wildlife and humans, killing millions of animals of numerous species, as well as causing significant damage to vehicles, drivers and passengers. Road fencing is a highly effective mitigation measure at reducing WVC, however its large-scale implementation requires a high investment. We questioned how...
Data
A participatory monitoring programme of an exceptional modification of urban soundscapes during Covid-19 containment.
Article
Modern cars have an array of sensors that allow different objects to be recognized, including large and small animals. They thus have the potential to become a tool for monitoring biodiversity and improving driver safety. But to achieve this various challenges in computing, communications and privacy need to be addressed.
Chapter
China’s Belt and Road Initiative (BRI) is playing a central role in the infrastructure development of Africa, with investments centered in the transportation and energy sectors, aiming to promote the long-desired growth of trade routes between and within African regions and the world. The expansion of transportation infrastructures, seaports and ai...
Article
Full-text available
We assessed the relative importance of human activity and environmental suitability as drivers of compositional dissimilarity of alien birds for 65 of the most populous cities of the Iberian Peninsula. We examined how these drivers relate to Zeta diversity (f) for alien Passeriformes and Psittaciformes. We performed the analysis using multiple orde...
Conference Paper
Full-text available
Las carreteras son una de las infraestructuras humanas que generan un mayor impacto, siendo los atropellos de fauna su consecuencia más visible y estudiada. La ciencia ciudadana está ganando popularidad como una fuente de datos (también en la Ecología de Carreteras) que permite estudios a una escala de otra forma inabarcable. Existe un debate sobre...
Article
By 2030, an additional 1.2 billion people are forecast in urban areas globally. We review the scientific literature (n = 922 studies) to assess direct and indirect impacts of urban growth on habitat and biodiversity. Direct impacts are cumulatively substantial, with 290,000 km2 of natural habitat forecast to be converted to urban land uses between...
Article
Full-text available
Inappropriate tourist behavior in protected areas can lead to wildlife road‐kills
Article
Roads are a main cause of habitat fragmentation but mitigating the full road network is unfeasible. A key goal in the road mitigation planning process is to highlight, at the transportation network level, the most problematic roads, i.e. where mitigation measures are most required in order to maximize the benefits for biodiversity while keeping imp...
Article
We modelled the spatiotemporal patterns of road mortality for seven medium-large mammals, using a roadkill dataset from Mato Grosso do Sul, Brazil (800 km of roads surveyed every two weeks, for two years). We related roadkill presence-absence along the road sections (1000 m) and across the survey dates with a collection of environmental variables,...
Article
Full-text available
Roads have a myriad of negative effects on biodiversity, ultimately threatening the persistence of populations. In this Perspective we call attention to an extreme example , where the entire current geographic range of the endangered golden lion tama-rin (Leontopithecus rosalia, GLT) is bisected by a major highway that is being widened to four lane...
Article
Full-text available
Linear infrastructures (e.g. roads, railways or power lines) promote a myriad of negative impacts on wildlife around the world, of which direct mortality is the most visible one. When high mortality rates are found, mitigation measures are often discussed and applied. On the other hand, the lack of mortality is commonly interpreted as evidence of l...
Article
Full-text available
Road-barrier effects can lead to population isolation, with consequent negative outcomes for individuals and populations. Small mammals have been identified as particularly vulnerable to barrier effects, yet few studies have focused on subterranean species. Given the burrowing habit of these species, we hypothesized that roads block their movement...
Article
Roadkill estimates can be heavily biased due to variable carcass persistence time. If not adequately considered, this bias may lead to incorrect management actions. We designed an experiment aimed to provide an accurate assessment of carcass persistence time according to road type and position on the road along 114 km of roads (24 in dirt roads, 74...
Article
Full-text available
Railway ecology is an emerging discipline. In this review, we focus on what is known today regarding the impacts of railways on wildlife, and on the methods to identify, monitor, and mitigate these impacts. Wildlife-train collisions are the most often reported impact, although railway lines can also represent barriers to animal movement, bisecting...
Article
Full-text available
Habitat fragmentation is a major biodiversity threat. Linear infrastructures (e.g. roads) hamper the movement of individuals and cause non-natural mortality. Roadkill hotspots have been used to define priority areas for road effect mitigation, but data availability and reliability is an issue, particularly on wide spatial scales. Additionally, miti...
Article
Full-text available
One of the main tasks when dealing with the impacts of infrastructures on wildlife is to identify hotspots of high mortality so one can devise and implement mitigation measures. A common strategy to identify hotspots is to divide an infrastructure into several segments and determine when the number of collisions in a segment is above a given thresh...
Article
Full-text available
The Belt and Road Initiative will greatly influence the future of global trade. However, it may also promote permanent environmental degradation. We call for rigorous strategic environmental and social assessments, raising the bar for environmental protection worldwide.
Article
Wildlife-vehicle collisions (WVC) represent a major threat for wildlife and understanding how WVC spatial patterns relate to surrounding land cover can provide valuable information for deciding where to implement mitigation measures. However, these relations may be heavily biased as many casualties are undetected in roadkill surveys, e.g. due to sc...
Conference Paper
The Brazil’s Cerrado support the largest remaining populations of Giant anteaters. However, today this biome is being heavily fragmented by an ever-increasing road network, and Giant anteaters are one of the most frequently road-killed species. To address this threat, data on why, when, and how anteaters interact with roadways is urgently needed....
Article
Infrastructures in natural areas are expanding rapidly worldwide. Consequently, roads, power-lines, and wind-farms cause millions of fatalities across several animal groups. Assessing the population impact of these infra-structures requires sound estimates of the total number of fatalities. These estimates can be heavily biased due to differences i...
Article
Full-text available
The European Journal of Wildlife Research introduces a new Topical Collection focused on Road Ecology. This Topical Collection aims to be a useful tool for the development of generalized principles and applications concerning wildlife-related aspects of Road Ecology. Submissions exploring new or lesser-known costs and potential benefits for wildlif...
Data
Supplementary resources of the article: A review of searcher efficiency and carcass persistence in infrastructure-driven mortality assessment studies
Article
Full-text available
There is a vast body of literature aiming to predict, for a large number of taxa, the spatial distribution of suitable areas given the expected future changes of climatic conditions. However, such studies often overlook the role of landscape functional connectivity. This is particularly relevant for species with low vagility, as ground-dwelling ins...
Data
Supplementary material of the article: Bird on the wire: landscape planning considering costs and benefits for bird populations coexisting with power lines
Article
Full-text available
Power-line grids are increasingly expanding worldwide, as well as their negative impacts on avifauna, namely the direct mortality through collision and electrocution, the reduction of breeding performance, and the barrier effect. On the other hand, some bird species can apparently benefit from the presence of power lines, for example perching for h...