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| Registros recuperados: 21 | |
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| Iverson, Samuel A; Department of Biology, Simon Fraser University; Canadian Wildlife Service, Environment and Climate Change Canada; samuel.iverson@canada.ca; Forbes, Mark R.; Department of Biology, Carleton University; mark_forbes@carleton.ca; Simard, Manon; Nunavik Research Centre, Makivik Corporation, Kuujjuaq; manonsimard@eeyoumarineregion.ca; Soos, Catherine; Science and Technology Branch, Environment and Climate Change Canada; Department of Veterinary Pathology, University of Saskatchewan; catherine.soos@canada.ca; Gilchrist, H. Grant; National Wildlife Research Centre, Environment and Climate Change Canada; grant.gilchrist@canada.ca. |
| Emerging infectious diseases are a growing concern in wildlife conservation. Documenting outbreak patterns and determining the ecological drivers of transmission risk are fundamental to predicting disease spread and assessing potential impacts on population viability. However, evaluating disease in wildlife populations requires expansive surveillance networks that often do not exist in remote and developing areas. Here, we describe the results of a community-based research initiative conducted in collaboration with indigenous harvesters, the Inuit, in response to a new series of Avian Cholera outbreaks affecting Common Eiders (Somateria mollissima) and other comingling species in the Canadian Arctic. Avian Cholera is a virulent disease of birds caused by... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Arctic; Avian Cholera; Common Eider; Conservation; Emerging infectious disease; Inuit; Maxent; Participatory surveillance; Species-habitat model. |
| Ano: 2016 |
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| Nabout,João Carlos; Marco Júnior,Paulo de; Bini,Luis Maurício; Diniz-Filho,José Alexandre F.. |
| Caranguejos do gênero Uca Leach, 1814 (caranguejo "violinista") são um grupo bem conhecido e caracterizado por um acentuado dimorfismo sexual e assimetria da quela do macho. Atualmente, estão descritas 97 espécies no mundo. Objetivou-se estimar a distribuição geográfica potencial de 4 espécies do gênero Uca que ocorrem na costa do continente Americano: Uca maracoani Latreille, 1802-1803, U. uruguayensis Nobili, 1901, U. panacea Novak & Salmon, 1974 e U. monilifera Rathbun, 1914. Para modelar a distribuição dessas espécies nas Américas foram utilizados pontos de ocorrência compilados da literatura. Para a modelagem foram utilizados os programas Maxent e GARP a partir de 10 variáveis climáticas e três variáveis topográficas. Todas as variáveis foram... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Garp; Maxent; Delineamento amostral; Planos de conservação. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000100013 |
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| Escalante,Tania; Linaje,Miguel; Illoldi-Rangel,Patricia; Rivas,Miguel; Estrada,Patricia; Neira,Francisca; Morrone,Juan J.. |
| Eurymetopum is an Andean clerid genus with 22 species. We modeled the ecological niches of 19 species with Maxent and used them as potential distributional maps to identify patterns of richness and endemicity. All modeled species maps were overlapped in a single map in order to determine richness. We performed an optimality analysis with NDM/VNDM in a grid of 1º latitude-longitude in order to identify endemism. We found a highly rich area, located between 32º and 41º south latitude, where the richest pixels have 16 species. One area of endemism was identified, located in the Maule and Valdivian Forest biogeographic provinces, which extends also to the Santiago province of the Central Chilean subregion, and contains four endemic species (E. parallelum, E.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Andean region; Central Chilean subregion; Maxent; NDM; Subantarctic subregion. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000300011 |
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| Ciliberti, P.; Jong, H. de; Schouten, M.A.; Verweij, P.A.; Heitmans, W.R.B.. |
| This paper aims at modelling the spatial distribution of the cockroach species Capraiellus panzeri, Ectobius lapponicus, Ectobius pallidus and Ectobius sylvestris within the Netherlands and comparing the habitat preferences of these species. Maxent was used to calculate habitat suitability and to identify environmental variables underlying the differences in observed distribution patterns. A sub-sampling procedure was employed to test model stability. Models were evaluated by calculating the Area Under the Curve (AUC). The analyses show that except for the costal dune area, the western part of the Netherlands is unsuitable for the species. Suitability predictions for C. panzeri, E. lapponicus and E. sylvestris are very similar, with suitable areas... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Capraiellus panzeri; Cockroaches; Ecological niche modelling; Ectobius lapponicus; Ectobius pallidus; Ectobius sylvestris; Maxent; Model stability; The Netherlands; 42.75. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/321914 |
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| Palma Cancino, Davira Yolanda. |
| El tecolote moteado mexicano es una especie amenazada, en Estados Unidos y México. En México esta especie ha sido poco estudiada. Para localizar, registrar y caracterizar el hábitat de los sitios de descanso del tecolote moteado mexicano, así como para determinar su distribución potencial en áreas adyacentes, se condujeron muestreos en Tlachichila, Zacatecas. Para ello, se establecieron estaciones de llamado nocturnos en la que se emplearon imitaciones de sus vocalizaciones y búsquedas durante el día. Se muestrearon 7, 639 ha, y se localizaron cinco individuos subadultos en tres sitios de descanso (dos parejas y un individuo solitario). La caracterización del hábitat se realizó en sitios de uso y sitios aleatorios, en parcelas circulares de 20 m de... |
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Palavras-chave: Strix occidentales lucida; Caracterización; Hábitat potencial; Maxent; Characterization; Potential habitat; Ganadería; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2369 |
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| Luizza, Matthew W.; Colorado State University, Natural Resource Ecology Laboratory; mwluizza@rams.colostate.edu; Wakie, Tewodros; Colorado State University, Natural Resource Ecology Laboratory; tewodros.wakie@colostate.edu; Evangelista, Paul H.; Colorado State University, Natural Resource Ecology Laboratory; paul.evangelista@colostate.edu; Jarnevich, Catherine S.; U.S. Geological Survey, Fort Collins Science Center; jarnevichc@usgs.gov. |
| The threats posed by invasive plants span ecosystems and economies worldwide. Local knowledge of biological invasions has proven beneficial for invasive species research, but to date no work has integrated this knowledge with species distribution modeling for invasion risk assessments. In this study, we integrated pastoral knowledge with Maxent modeling to assess the suitable habitat and potential impacts of invasive Cryptostegia grandiflora Robx. Ex R.Br. (rubber vine) in Ethiopia’s Afar region. We conducted focus groups with seven villages across the Amibara and Awash-Fentale districts. Pastoral knowledge revealed the growing threat of rubber vine, which to date has received limited attention in Ethiopia, and whose presence in Afar was... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Afar region; Citizen science; Cryptostegia grandiflora; Ethiopia; Invasive species; Local ecological knowledge; Maxent; Participatory mapping; Pastoral livelihoods; Risk assessment; Rubber vine; Species distribution modeling. |
| Ano: 2016 |
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| Coelho,Guilherme Leite Nunes; Carvalho,Luis Marcelo Tavares de; Gomide,Lucas Rezende. |
| Resumo: O objetivo deste trabalho foi determinar a distribuição potencial de 23 espécies pioneiras no Estado de Minas Gerias, além de identificar as variáveis ambientais que influenciam as suas distribuições. O algoritmo Maxent foi escolhido para relacionar a ocorrência de espécies às seguintes variáveis bioclimáticas: variação diurna de temperatura, isotermalidade, sazonalidade da temperatura, precipitação do mês mais seco, sazonalidade da precipitação (coeficiente de variação) e evapotranspiração real. Também foram avaliados índice de vegetação por diferença normalizada (NDVI), grau de conservação da flora e heterogeneidade espacial de fitofisionomias, bem como erodibilidade (suscetibilidade do solo à erosão), disponibilidade de água subterrânea, textura... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Maxent; Plano de conservação; Planta nativa; Predição de habitat. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000300207 |
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| Torres,Ricardo; Jayat,J. Pablo. |
| Los acelerados cambios ambientales producidos por el hombre hacen necesario el estudio detallado del rango geográfico de las especies. En la actualidad, el Chaco argentino constituye una de las ecorregiones con las tasas de transformación más altas, lo que ha colocado a sus mamíferos en una posición delicada desde el punto de vista de la conservación. Mediante técnicas de modelado de la distribución potencial y utilizando el software Maxent, en este trabajo estudiamos el conjunto de variables climático-ambientales más importantes en la predicción de la distribución actual de Catagonus wagneri, Pediolagus salinicola, Priodontes maximus y Tolypeutes matacus. Reportamos además las hipótesis de distribución potencial obtenidas sobre la base de dos umbrales de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Catagonus; Maxent; Pediolagus; Priodontes; Tolypeutes. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832010000200008 |
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| FIGUEIREDO,Symone Maria de Melo; VENTICINQUE,Eduardo Martins; FIGUEIREDO,Evandro Orfanó; FERREIRA,Evandro José Linhares. |
| Species distribution modeling has relevant implications for the studies of biodiversity, decision making about conservation and knowledge about ecological requirements of the species. The aim of this study was to evaluate if the use of forest inventories can improve the estimation of occurrence probability, identify the limits of the potential distribution and habitat preference of a group of timber tree species. The environmental predictor variables were: elevation, slope, aspect, normalized difference vegetation index (NDVI) and height above the nearest drainage (HAND). To estimate the distribution of species we used the maximum entropy method (Maxent). In comparison with a random distribution, using topographic variables and vegetation index as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Modeling; Maxent; Forest inventory; Modeflora; Amazon. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672015000200167 |
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| Campos,Mônica de Cássia Souza; Peifer,Daniel; Castro,Paulo de Tarso. |
| The introduction of the golden mussel, Limnoperna fortunei(Dunker, 1857) in South America was related to the discharge of ballast water, with its first record in 1991 in the La Plata River estuary. Since then, the species is spreading throughout the continent, with several economic and ecological negative consequences. Aim: To model, in the headwaters of Parana River, the spatial distribution ofL. fortunei and to understand the determinants of the current pattern of species distribution and the risk of invasion of areas not yet colonized. Methods: The ecological niche of L. fortunei was modeled using the algorithm MAXENT (Maximum Entropy Method) combined with records of occurrence of the bivalve, limnological data and the shear force measured by the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Invasive species; Biological invasions; Niche modeling; Maxent; Ecological requirements. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000100109 |
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| Registros recuperados: 21 | |
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