39 research outputs found
Small terrestrial mammals of Albania: distribution and diversity (Mammalia, Eulipotyphla, Rodentia)
In this paper new records are reported for 23 species of small terrestrial mammals (STM) of Albania collected during the field work campaigns organised in the framework of the project âStrengthening capacity in National Nature Protection â preparation for Natura 2000 networkâ (NaturAL) in Albania during the summer and autumn of 2016 and 2017 Data on small mammals were primarily collected through Sherman live-trapping campaigns in six high priority protected areas of Albania: Korab-Koritnik, Bredhi i HotovĂ«s, Tomorri, Llogara-Karaburun, DivjakĂ«-Karavasta, Liqeni i ShkodrĂ«s (Skadar lake), LĂ«pushĂ«-Vermosh. Other data were obtained by analysis of owl pellets or by direct observation of individuals (dead or alive) in the field. For 21 species Erinaceus roumanicus, Neomys anomalus, Crocidura suaveolens, Crocidura leucodon, Suncus etruscus, Talpa stankovici/caeca, Myocastor coypus, Sciurus vulgaris, Glis glis, Dryomys nitedula, Muscardinus avellanarius, Microtus levis/arvalis, Microtus subterraneus, Microtus thomasi, Microtus felteni, Myodes glareolus, Apodemus sylvaticus, Apodemus flavicollis, Apodemus epimelas, Mus musculus, and Mus macedonicus additional records are provide and their distributions reviewed, while the presence of two new species of shrews (Sorex araneus and Sorex minutus) for Albania is reported for the first time. A comprehensive review of the published and unpublished distribution records of STM species of the country is made, together with an updated checklist and distribution maps of the species
Drivers of change in the realised climatic niche of terrestrial mammals
The breadth of a speciesâ climatic niche is an important ecological trait that allows
adaptation to climate change, but human activities often reduce realised niche breadth
by impacting species distributions. Some life-history traits, such as dispersal ability
and reproductive speed, allow species to cope with both human impact and climate
change. But how do these traits interact with human pressure to determine niche
change? Here we investigate the patterns and drivers of change in the realised climatic
niche of 258 terrestrial mammal species. Our goal is to disentangle the impacts of
human land use, climate change and life history. We quantified the past and present
climatic niches of each species by considering past climatic conditions (Mid Holocene)
within their pre-human impact distributions, and current climatic conditions within
the current distributions. Depending on the difference between past and current
niche, we defined four categories of change: âshrinkâ, âshiftâ, âstableâ and âexpandâ. We
found over half of the species in our sample have undergone niche shrink, while only
one in six retained a stable niche. Climate change and distribution change were the
strongest correlates of species niche change, followed by biogeography, anthropogenic
land use and life-history traits. Factors that increased the probability of niche shrink
included: overall climatic instability, reduction in distribution range, historical land
use, large body mass and long weaning age. Species with these characteristics might
require interventions that facilitate natural dispersal or assisted colonisation to survive
rapidly changing climates
Drought vulnerability among China's ungulates and mitigation offered by protected areas
Ongoing perturbations in the global climate have triggered changes in the frequency or magnitude of extreme climatic events, including drought. Increasingly common or intense droughts have threatened ungulates. Intensifying trend of drought has been observed in China since the 1980s. We assessed drought vulnerability of 60 ungulate taxa distributed in China by synthesizing information on drought exposure and intrinsic vulnerability related to biological traits. In total, 27 taxa were identified as vulnerable to drought, which represent over half of the taxa assessed as threatened in the IUCN Red List and China's National Red List. We identified hotspots where a high number of droughtâvulnerable taxa are concentrated, including Northeast Himalayan subalpine conifer forests, alpine conifer and mixed forests of NujiangâLancang Gorge, and QionglaiâMinshan conifer forests, which are all located in Southwest China. We also assessed conservation efforts that China has allocated to ungulate taxa vulnerable to drought. Droughtâvulnerable taxa that are endemic to China have significantly lower coverage in China's National Nature Reserve system compared with nonvulnerable taxa. These findings reveal the gaps in existing conservation efforts and indicate possible improvements that might be needed to maintain species resistance in the face of increasing and intensifying drought impacts
COMBINE: a coalesced mammal database of intrinsic and extrinsic traits
The use of speciesâ traits in macroecological analyses has gained popularity in the last decade, becoming an important tool to understand global biodiversity patterns. Currently, trait data can be found across a wide variety of data sets included in websites, articles, and books, each one with its own taxonomic classification, set of traits and data management methodology. Mammals, in particular, are among the most studied taxa, with large sources of trait information readily available. To facilitate the use of these data, we did an extensive review of published mammal trait data sources between 1999 and May 2020 and produced COMBINE: a COalesced Mammal dataBase of INtrinsic and Extrinsic traits. Our aim was to create a taxonomically integrated database of mammal traits that maximized trait number and coverage without compromising data quality. COMBINE contains information on 54 traits for 6,234 extant and recently extinct mammal species, including information on morphology, reproduction, diet, biogeography, lifeâhabit, phenology, behavior, home range and density. Additionally, we calculated other relevant traits such as habitat and altitudinal breadths for all species and dispersal for terrestrial nonâvolant species. All data are compatible with the taxonomies of the IUCN Red List v. 2020â2 and PHYLACINE v. 1.2. Missing data were adequately flagged and imputed for nonâbiogeographical traits with 20% or more data available. We obtained full data sets for 21 traits such as female maturity, litter size, maximum longevity, trophic level, and dispersal, providing imputation performance statistics for all. This data set will be especially useful for those interested in including speciesâ traits in largeâscale ecological and conservation analyses. There are no copyright or proprietary restrictions; we request citation of this publication and all relevant underlying data sources (found in Data S1: trait_data_sources.csv), upon using these data
Global correlates of range contractions and expansions in terrestrial mammals
Understanding changes in species distributions is essential to disentangle the mechanisms that drive their responses to anthropogenic habitat modification. Here we analyse the past (1970s) and current (2017) distribution of 204 species of terrestrial non-volant mammals to identify drivers of recent contraction and expansion in their range. We find 106 species lost part of their past range, and 40 of them declined by >50%. The key correlates of this contraction are large body mass, increase in air temperature, loss of natural land, and high human population density. At the same time, 44 species have some expansion in their range, which correlates with small body size, generalist diet, and high reproductive rates. Our findings clearly show that human activity and life history interact to influence range changes in mammals. While the former plays a major role in determining contraction in speciesâ distribution, the latter is important for both contraction and expansion
BioNNA: the Biodiversity National Network of Albania
Recently, the Albanian Government started the process to join the European Union. This process also involves matching the EU parameters in protecting its biodiversity. In order to support the Albanian authorities, the Italian Ministry of Foreign Affairs, General Directorate for Development Cooperation (DGCS) and the International Union for Conservation of Nature (IUCN) joined efforts in the project âInstitutional Support to the Albanian Ministry of Environment, Forest and Water Administration for Sustainable Biodiversity Conservation and Use in Protected Areasâ. This project aims at identifying priority needs in safeguarding ecosystem services and biodiversity conservation. Another project funded by the EU â âStrengthening capacity in National Nature Protection â preparation for Natura 2000 networkâ â started in 2015 with the aim to raise awareness for assisting local and national Albanian institutions to better exploit the potential of protected areas. One of the main issues encountered during these projects was the need for a national biodiversity data repository. The Biodiversity National Network of Albania (BioNNA) has been created to aggregate occurrence records of plants and animals and aims at becoming the most relevant source of information for biodiversity data as far as Albania is concerned. In this paper, the authors detail structure and data of BioNNA, including the process of data gathering and aggregation, taxonomic coverage, software details and WebGIS development. BioNNA is a milestone on the path towards Albaniaâs inclusion in the EU and has also a relevant potential social relevance for improving peopleâs awareness on the importance of biodiversity in the country
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Bridging the research-implementation gap in IUCN Red List assessments
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species is central in biodiversity conservation, but insufficient resources hamper its long-term growth, updating, and consistency. Models or automated calculations can alleviate those challenges by providing standardised estimates required for assessments, or prioritising species for (re-)assessments. However, while numerous scientific papers have proposed such methods, few have been integrated into assessment practice, highlighting a critical research-implementation gap. We believe this gap can be bridged by fostering communication and collaboration between academic researchers and Red List practitioners, and by developing and maintaining user-friendly platforms to automate application of the methods. We propose that developing methods better encompassing Red List criteria, systems, and drivers is the next priority to support the Red List.Peer reviewe
A species-level trait dataset of bats in Europe and beyond
Knowledge of species' functional traits is essential for understanding biodiversity patterns, predicting the impacts of global environmental changes, and assessing the efficiency of conservation measures. Bats are major components of mammalian diversity and occupy a variety of ecological niches and geographic distributions. However, an extensive compilation of their functional traits and ecological attributes is still missing. Here we present EuroBatrait 1.0, the most comprehensive and up-to-date trait dataset covering 47 European bat species. The dataset includes data on 118 traits including genetic composition, physiology, morphology, acoustic signature, climatic associations, foraging habitat, roost type, diet, spatial behaviour, life history, pathogens, phenology, and distribution. We compiled the bat trait data obtained from three main sources: (i) a systematic literature and dataset search, (ii) unpublished data from European bat experts, and (iii) observations from large-scale monitoring programs. EuroBatrait is designed to provide an important data source for comparative and trait-based analyses at the species or community level. the dataset also exposes knowledge gaps in species, geographic and trait coverage, highlighting priorities for future data collection.Additional co-authors: Lisette CantĂș-Salazar, Dina K. N. Dechmann, Tiphaine Devaux, Katrine Eldegard, Sasan Fereidouni, Joanna Furmankiewicz, Daniela Hamidovic, Davina L. Hill, Carlos Ibåñez, Jean-François Julien, Javier Juste, Peter KaĆuch, Carmi Korine, Alexis Laforge, GaĂ«lle Legras, Camille Leroux, Grzegorz LesiĆski, LĂ©a Mariton, Julie Marmet, Vanessa A. Mata, Clare M. Mifsud, Victoria Nistreanu, Roberto Novella-Fernandez, Hugo Rebelo, Niamh Roche, Charlotte Roemer, Ireneusz RuczyĆski, Rune SĂžrĂ„s, Marcel Uhrin, Adriana Vella, Christian C. Voigt & Orly Razgou
Drivers of habitat availability for terrestrial mammals: Unravelling the role of livestock, land conversion and intrinsic traits in the past 50 years
The global decline of terrestrial species is largely due to the degradation, loss and fragmentation of their habitats. The conversion of natural ecosystems for cropland, rangeland, forest products and human infrastructure are the primary causes of habitat deterioration. Due to the paucity of data on the past distribution of species and the scarcity of fine-scale habitat conversion maps, however, accurate assessment of the recent effects of habitat degradation, loss and fragmentation on the range of mammals has been near impossible. We aim to assess the proportions of available habitat within the lost and retained parts of mammals' distribution ranges, and to identify the drivers of habitat availability. We produced distribution maps for 475 terrestrial mammals for the range they occupied 50 years ago and compared them to current range maps. We then calculated the differences in the percentage of 'area of habitat' (habitat available to a species within its range) between the lost and retained range areas. Finally, we ran generalized linear mixed models to identify which variables were more influential in determining habitat availability in the lost and retained parts of the distribution ranges. We found that 59% of species had a lower proportion of available habitat in the lost range compared to the retained range, thus hypothesizing that habitat loss could have contributed to range declines. The most important factors negatively affecting habitat availability were the conversion of land to rangeland and high density of livestock. Significant intrinsic traits were those related to reproductive timing and output, habitat breadth and medium body size. Our findings emphasize the importance of implementing conservation strategies to mitigate the impacts caused by human activities on the habitats of mammals, and offer evidence indicating which species have the potential to reoccupy portions of their former range if other threats cease to occur.This study investigates the impact of habitat degradation on terrestrial mammal species. By comparing historic and current distribution maps for 475 species, we found that 59% of them have less available habitat in their lost ranges, suggesting habitat loss contributed to range declines. Factors like land conversion to rangeland and high livestock density negatively affected habitat availability. Intrinsic traits such as reproductive timing, habitat breadth and medium body size also played a role. The study underscores the need for conservation efforts to mitigate human-induced habitat threats and identifies species that could potentially reclaim lost range if threats are addressed.imag
IX Italian congress of Mammalogy
The effects of recent climate change on mammals are increasingly well documented, and a large number of methods have been developed to predict the potential impacts of further climate change in the coming decades. A variety of studies have demonstrated that species displaying certain ecological and life history traits (e.g. low dispersal, large body mass, low reproductive rates) are more vulnerable to extinction based to climate change than others. Despite these efforts, little is known about how to represent species vulnerability to climate change due to biological traits. Here we present a framework for assessing three components of vulnerability: exposure, sensitivity and adaptability. We developed two indices for each Italian terrestrial non-volant mammal (64 species) by considering a) life history traits which make a species more sensitive and less adaptable to climate change, and b) the areas with the greatest exposure (differences between current and projected future climate) b