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https://read.qxmd.com/read/30768612/factors-affecting-dupont%C3%A2-s-lark-distribution-and-range-regression-in-spain
#1
Alexander García Antón, Vicente Garza, Jorge Hernández Justribó, Juan Traba
In this work, we analyse factors explaining the distribution and range regression of Dupont's lark in Spain, the only European country in which this threatened alaudid is present. Dupont's lark is an extremely elusive and scarce species, distributed across a reduced and strongly fragmented range, showing a metapopulational structure with unknown dispersive and connective mechanisms. We used maximum entropy modelling (Maxent) on nearly 15,000 Dupont's lark observations (1985-2015) to assess the probability of presence at a 1 km resolution across its European range...
2019: PloS One
https://read.qxmd.com/read/30765191/a-countrywide-molecular-survey-leads-to-a-seminal-identification-of-the-invasive-cattle-tick-rhipicephalus-boophilus-microplus-in-cameroon-a-decade-after-it-was-reported-in-cote-d-ivoire
#2
Barberine A Silatsa, Jules-Roger Kuiate, Flobert Njiokou, Gustave Simo, Jean-Marc F Kameni, Alabi Tunrayo, Gaston S Amzati, Bernard Bett, Richard Bishop, Naftaly Githaka, Stephen O Opiyo, Appolinaire Djikeng, Roger Pelle
The cattle tick Rhipicephalus microplus is the most important arthropod vector of livestock diseases globally. Since its introduction in West Africa a decade ago, it has been reported in Ivory Coast, Benin, Togo, Mali, Burkina Faso and Nigeria with potentially far-reaching adverse impacts on the livestock sector in the region. Cameroon is located on a major route for transboundary cattle trade between Central and West Africa and it is therefore at risk from R. microplus invasion. This study investigated the occurrence of R...
February 7, 2019: Ticks and Tick-borne Diseases
https://read.qxmd.com/read/30762229/wind-turbines-cause-functional-habitat-loss-for-migratory-soaring-birds
#3
Ana Teresa Marques, Carlos David Santos, Frank Hanssen, Antonio-Román Muñoz, Alejandro Onrubia, Martin Wikelski, Francisco Moreira, Jorge Manuel Palmeirim, João Paulo Silva
1.Wind energy production has expanded to meet climate change mitigation goals, but negative impacts of wind turbines have been reported on wildlife. Soaring birds are among the most affected groups with alarming fatality rates by collision with wind turbines and an escalating occupation of their migratory corridors. These birds have been described as changing their flight trajectories to avoid wind turbines, but this behaviour may lead to functional habitat loss, as suitable soaring areas in the proximity of wind turbines will likely be underused...
February 14, 2019: Journal of Animal Ecology
https://read.qxmd.com/read/30756457/calibrating-an-individual-based-movement-model-to-predict-functional-connectivity-for-little-owls
#4
Severin Hauenstein, Julien Fattebert, Martin Grüebler, Beat Naef-Daenzer, Guy Pe'er, Florian Hartig
Dispersal is crucial for population viability and thus a popular target for conservation measures. However, the ability of individuals to move between habitat patches is notoriously difficult to estimate. One solution is to quantify functional connectivity via realistic individual-based movement models. Such simulation models, however, are difficult to build and even more difficult to parameterize. Here, we use the example of natal little owl (Athene noctua) dispersal to develop a new analysis chain for the calibration of individual-based dispersal models using a hybrid of statistical parameter estimation and Approximate Bayesian Computation (ABC)...
February 12, 2019: Ecological Applications: a Publication of the Ecological Society of America
https://read.qxmd.com/read/30753555/short-term-forecasting-of-daily-abundance-of-west-nile-virus-vectors-culex-pipiens-restuans-diptera-culicidae-and-aedes-vexans-based-on-weather-conditions-in-southern-qu%C3%A3-bec-canada
#5
Marion Ripoche, Céline Campagna, Antoinette Ludwig, Nicholas H Ogden, Patrick A Leighton
Since 2002, human cases of West Nile virus (WNV) have occurred every year in southern Canada, but WNV risk remains challenging to predict. Here, we explored the ability of weather-based forecasting models to predict the seasonal abundance of two WNV vector species (Culex pipiens-restuans and Aedes vexans) in Québec, Canada, and explored the importance of accounting for larvicide use and local habitat (forest park vs residential garden). A gamma-generalized linear model predicting mosquito abundance was developed based on an approach previously used in Ontario combining temperature and precipitation during the days preceding mosquito captures...
February 11, 2019: Journal of Medical Entomology
https://read.qxmd.com/read/30743113/modeling-the-present-and-future-distribution-of-arbovirus-vectors-aedes-aegypti-and-aedes-albopictus-under-climate-change-scenarios-in-mainland-china
#6
Boyang Liu, Xiang Gao, Jun Ma, Zhihui Jiao, Jianhua Xiao, Muhammad Abid Hayat, Hongbin Wang
Aedes aegypti and Aedes albopictus are two important mosquito species which transmit various infectious arbovirus diseases represented mainly by dengue fever. These two species of mosquito have a wide range of distribution and strong transfer capacity. With ongoing global climate change, we are facing an increasing public health threat from the rapid spread of vectors in wider geographical areas. Based on observed occurrence records of Ae. aegypti and Ae. albopictus and high-resolution environmental layers reflecting climate and land-use conditions, a Maxent niche modeling approach was adopted to model the current and future distribution of both species in Mainland China...
February 1, 2019: Science of the Total Environment
https://read.qxmd.com/read/30738263/combined-effects-of-climate-change-and-sea-level-rise-project-dramatic-habitat-loss-of-the-globally-endangered-bengal-tiger-in-the-bangladesh-sundarbans
#7
Sharif A Mukul, Mohammed Alamgir, Md Shawkat I Sohel, Petina L Pert, John Herbohn, Stephen M Turton, Md Saiful I Khan, Shifath Ahmed Munim, A H M Ali Reza, William F Laurance
The Sundarbans, in southern coastal Bangladesh, is the world's largest surviving mangrove habitat and the last stronghold of tiger adapted to living in a mangrove ecosystem. Using MaxEnt (maximum entropy modeling), current distribution data, land-use/land cover and bioclimatic variables, we modeled the likely future distribution of the globally endangered Bengal tiger (Panthera tigris tigris) in the Bangladesh Sundarbans. We used two climatic scenarios (i.e., RCP6.0 and RCP8.5) developed by the Intergovernmental Panel on Climate Change (IPCC) to provide projections of suitable habitats of Bengal tigers in 2050 and 2070...
January 30, 2019: Science of the Total Environment
https://read.qxmd.com/read/30718575/distinguishing-recent-dispersal-from-historical-genetic-connectivity-in-the-coastal-california-gnatcatcher
#8
Amy G Vandergast, Barbara E Kus, Kristine L Preston, Kelly R Barr
Habitat loss and fragmentation are primary threats to biodiversity worldwide. We studied the impacts of habitat loss and fragmentation on genetic connectivity and diversity among local aggregations of the California gnatcatcher (Polioptila californica californica) across its U.S. range. With a dataset of 268 individuals genotyped at 19 microsatellite loci, we analyzed genetic structure across the range using clustering analyses, exact tests for population differentiation, and a pedigree analysis to examine the spatial distribution of first-order relatives throughout the study area...
February 4, 2019: Scientific Reports
https://read.qxmd.com/read/30716128/seasonal-home-ranges-and-habitat-selection-of-three-elk-cervus-elaphus-herds-in-north-dakota
#9
Jacqueline M Amor, Robert Newman, William F Jensen, Bradley C Rundquist, W David Walter, Jason R Boulanger
Changes in land use have resulted in range shifts of many wildlife species, including those entering novel environments, resulting in the critical need to understand their spatial ecology to inform ecosystem effects and management decisions. Dispersing elk (Cervus elaphus) were colonizing areas of suitable habitat in the Northern Great Plains, USA, resulting in crop depredation complaints in these areas. Although state resource managers had little information on these elk herds, limited evidence suggested temporal movements into Canada...
2019: PloS One
https://read.qxmd.com/read/30715699/evaluating-giant-panda-as-a-surrogate-species-for-conservation-co-occurring-species-in-the-baishuijiang-national-nature-reserve
#10
Zhanlei Rong, Xingming Liu, Chuanyan Zhao, Liwen He, Junjie Liu, Yunfei Gao, Fei Zang, Haojie Xu, Zhaoxia Guo, Yahua Mao
The establishment of nature reserves is a key approach for biodiversity conservation worldwide. However, the effectiveness of nature reserves established by protecting the habitat needs of surrogate species is questioned. In this study, the Baishuijiang National Nature Reserve (Baishuijiang NNR), located in the Minshan Mountains, China, which is established mainly for the conservation of giant panda (a surrogate for the conservation of other endangered species) was selected. We quantitatively evaluated the conservation effectiveness of the reserve for giant panda and co-occurring species (here, seven protected species) using a maximum entropy model (Maxent), and analyzed spatial congruence between giant panda and other seven species...
February 4, 2019: Environmental Science and Pollution Research International
https://read.qxmd.com/read/30714846/lizards-at-the-peak-physiological-plasticity-does-not-maintain-performance-in-lizards-transplanted-to-high-altitude
#11
Eric J Gangloff, Mahaut Sorlin, Gerardo A Cordero, Jérémie Souchet, Fabien Aubret
Warming climates are facilitating the range expansion of many taxa to habitats that were formerly thermally inhospitable, including to higher latitudes and elevations. The potential for such colonization, however, varies widely among taxa. Because environmental factors may interact to affect colonization potential, an understanding of underlying physiological and behavioral mechanisms is necessary to predict how species will respond to potentially suitable habitats. For example, temperature and oxygen availability will interact to shape physiological and performance traits...
March 2019: Physiological and Biochemical Zoology: PBZ
https://read.qxmd.com/read/30712279/evaluating-ecosystem-effects-of-climate-change-on-tropical-island-streams-using-high-spatial-and-temporal-resolution-sampling-regimes
#12
Therese C Frauendorf, Richard A MacKenzie, Ralph W Tingley, Abby G Frazier, Michael H Riney, Rana W El-Sabaawi
Climate change is expected to alter precipitation patterns worldwide, which will affect streamflow in riverine ecosystems. It is vital to understand the impacts of projected flow variations, especially in tropical regions where the effects of climate change are expected to be one of the earliest to emerge. Space-for-time substitutions have been successful at predicting effects of climate change in terrestrial systems by using a spatial gradient to mimic the projected temporal change. However, concerns have been raised that the spatial variability of these models might not reflect the temporal variability...
February 3, 2019: Global Change Biology
https://read.qxmd.com/read/30710404/ectomycorrhizas-and-tree-seedling-establishment-are-strongly-influenced-by-forest-edge-proximity-but-not-soil-inoculum
#13
Sara Grove, Norah P Saarman, Gregory S Gilbert, Brant Faircloth, Karen A Haubensak, Ingrid M Parker
Reforestation is challenging when timber harvested areas have been degraded, invaded by non-native species, or are of marginal suitability to begin with. Conifers form mutualistic partnerships with ectomycorrhizal fungi (EMF) to obtain greater access to soil resources, and these partnerships may be especially important in degraded areas. However, timber harvest can impact mycorrhizal fungi by removing or compacting topsoil, removing host plants, and warming and drying the soil. We used a field experiment to evaluate the role of EMF in Douglas-fir reforestation in clearcuts invaded by Cytisus scoparius (Scotch broom) where traditional reforestation approaches have repeatedly failed...
February 2, 2019: Ecological Applications: a Publication of the Ecological Society of America
https://read.qxmd.com/read/30707488/essential-elements-as-a-distinguishing-factor-between-mycorrhizal-potentials-of-two-cohabiting-truffle-species-in-riparian-forest-habitat-in-serbia
#14
Jelena Popović-Djordjević, Žaklina S Marjanović, Nemanja Gršić, Tamara Adžić, Blaženka Popović, Jelena Bogosavljević, Ilija Brčeski
True truffles (Tuber sp.) that establish ectomycorrhizal symbiosis (ECM) with trees in the Mediterranean and temporal regions have species specific abilities to assimilate soil born elements. Suitable habitats are usually inhabited by few truffle species, while distinguishing their symbiotic potentials appeared very difficult. Two species that commonly inhabit riparian forests in Serbia are the most prized one, Tuber magnatum Pico (Piedmont white truffle) and not so highly valued Tuber brumale Vitt. In order to assess potential differences between their assimilation and accumulation abilities, the differences between contents of elements that may be the subjects of the symbiotic trade between the host plant and fungi were evaluated in accumulation target (ascocarps) and their source (the soil)...
February 1, 2019: Chemistry & Biodiversity
https://read.qxmd.com/read/30706167/age-specific-gastrointestinal-parasite-shedding-in-free-ranging-cheetahs-acinonyx-jubatus-on-namibian-farmland
#15
Anne Seltmann, Fay Webster, Susana Carolina Martins Ferreira, Gábor Árpád Czirják, Bettina Wachter
The cheetah (Acinonyx jubatus Brookes 1828) is classified as "vulnerable" by the International Union for Conservation of Nature (IUCN). Threats to cheetah populations are a decrease of suitable habitats, an increase of conflicts with livestock farmers and potentially pathogens. While there is some information on the viral and bacterial pathogens circulating in cheetah populations, information on gastrointestinal parasites is scarce. Here, we investigate the gastrointestinal parasites in 39 free-ranging cheetahs in east-central Namibia using a coproscopical parasitological method...
January 31, 2019: Parasitology Research
https://read.qxmd.com/read/30703124/describing-vegetation-characteristics-used-by-two-rare-forest-dwelling-species-will-established-reserves-provide-for-coastal-marten-in-oregon
#16
Katie M Moriarty, Jake Verschuyl, Andrew J Kroll, Raymond Davis, Joshua Chapman, Bruce Hollen
Forest management guidelines for rare or declining species in the Pacific Northwest, USA, include both late successional reserves and specific vegetation management criteria. However, whether current management practices for well-studied species such as northern spotted owls (Strix occidentallis caurina) can aid in conserving a lesser known subspecies-Humboldt martens (Martes caurina humboldtensis)-is unclear. To address the lack of information for martens in coastal Oregon, USA, we quantified vegetation characteristics at locations used by Humboldt martens and spotted owls in two regions (central and southern coast) and at two spatial scales (the site level summarizing extensive vegetation surveys and regionally using remotely sensed vegetation and estimated habitat models)...
2019: PloS One
https://read.qxmd.com/read/30695083/modelling-potential-habitat-for-snow-leopards-panthera-uncia-in-ladakh-india
#17
Sophie M Watts, Thomas M McCarthy, Tsewang Namgail
The snow leopard Panthera uncia is an elusive species inhabiting some of the most remote and inaccessible tracts of Central and South Asia. It is difficult to determine its distribution and density pattern, which are crucial for developing conservation strategies. Several techniques for species detection combining camera traps with remote sensing and geographic information systems have been developed to model the habitat of such cryptic and low-density species in challenging terrains. Utilising presence-only data from camera traps and direct observations, alongside six environmental variables (elevation, aspect, ruggedness, distance to water, land cover, and prey habitat suitability), we assessed snow leopard habitat suitability across Ladakh in northern India...
2019: PloS One
https://read.qxmd.com/read/30691351/weather-driven-malaria-transmission-model-with-gonotrophic-and-sporogonic-cycles
#18
Kamaldeen Okuneye, Steffen E Eikenberry, Abba B Gumel
Malaria is mainly a tropical disease and its transmission cycle is heavily influenced by environment: The life-cycles of the Anopheles mosquito vector and Plasmodium parasite are both strongly affected by ambient temperature, while suitable aquatic habitat is necessary for immature mosquito development. Therefore, how global warming may affect malaria burden is an active question, and we develop a new ordinary differential equations-based malaria transmission model that explicitly considers the temperature-dependent Anopheles gonotrophic and Plasmodium sporogonic cycles...
January 28, 2019: Journal of Biological Dynamics
https://read.qxmd.com/read/30686116/fascioloides-magna-in-moose-alces-alces-from-elk-island-national-park-alberta
#19
Todd K Shury, Margo J Pybus, Nick Nation, Normand L Cool, W James Rettie
Thirty-seven adult female moose ( Alces alces) from 2 distinct but adjacent populations in Elk Island National Park (EINP), Alberta, Canada (19 in north EINP and 18 in south EINP), were fitted with mortality-sensing VHF radio-collars, and radio signals were acquired daily to ascertain mortality status. At capture, serum, whole blood, and feces were collected; pregnancy was determined; teeth were aged by visual inspection; and a portion of liver was assessed by ultrasound examination. Postmortem examination was conducted on 20 suitable carcasses...
January 27, 2019: Veterinary Pathology
https://read.qxmd.com/read/30682064/integrating-ecosystem-services-considerations-within-a-gis-based-habitat-suitability-index-for-oyster-restoration
#20
Seth J Theuerkauf, David B Eggleston, Brandon J Puckett
Geospatial habitat suitability index (HSI) models have emerged as powerful tools that integrate pertinent spatial information to guide habitat restoration efforts, but have rarely accounted for spatial variation in ecosystem service provision. In this study, we utilized satellite-derived chlorophyll a concentrations for Pamlico Sound, North Carolina, USA in conjunction with data on water flow velocities and dissolved oxygen concentrations to identify potential restoration locations that would maximize the oyster reef-associated ecosystem service of water filtration...
2019: PloS One
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