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Dissertations / Theses on the topic 'Species distribution modeling (SDM)'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Flessner, Brandon P. "SPECIES DISTRIBUTION MODELING OF AMERICAN BEECH (FAGUS GRANDIFOLIA EHRH.) DISTRIBUTION IN SOUTHWESTERN OHIO." Miami University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1399040680.

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Eddings, James B. "The Utility of Environmental DNA and Species Distribution Models in Assessing the Habitat Requirements of Twelve Fish Species in Alaskan North Slope Rivers." DigitalCommons@USU, 2020. https://digitalcommons.usu.edu/etd/7708.

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Subsistence fishing is a vital component of Alaska’s North Slope borough economy and culture that is being threatened by human disturbance. These threats mean the fish must be protected, but the size of the region makes conservation planning difficult. Fortunately, advances in species distribution models (SDMs), environmental DNA (eDNA), and remote sensing technologies provide potential to better understand species’ needs and guide management. The objectives of my study were to: (1) map the current habitat suitability for twelve fish species, occurring in Alaska’s North Slope,(2) determine if

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3

Urvois, Teddy. "Structure génétique et modélisation de la distribution des populations de deux espèces invasives de Xylosandrus (Scolytinae - Xyleborini) : deux espèces proches aux histoires d’invasion différentes." Electronic Thesis or Diss., Orléans, 2022. https://theses.univ-orleans.fr/prive/accesESR/2022ORLE1031_va.pdf.

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Xylosandrus compactus et X. crassiusculus sont deux scolytes originaires d’Asie du Sud-Est et invasifs sur plusieurs continents, dont la biologie et l’écologie atypiques favorisent l’invasion. Une approche pluridisciplinaire a été utilisée au cours de cette thèse afin (i) d’identifier l’origine des populations invasives et leurs routes d’invasion, et (ii) de déterminer les zones dans lesquelles elles pourraient s'étendre et s’établir. Les routes d’invasion ont été retracées à l’aide d’un marqueur mitochondrial et de marqueurs génomiques, et les zones favorables à l’établissement de chaque espè

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4

Sheehan, Meghan Marie. "Determining Drivers for Wildebeest (Connochaetes taurinus) Distribution in the Masai Mara National Reserve and Surrounding Group Ranches." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1452550498.

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5

Fournier, Alice. "Modéliser et prédire les invasions biologiques." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS144/document.

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Les invasions biologiques, deuxième cause de perte de biodiversité à l’échelle mondiale, représentent un risque majeur auquel nos sociétés doivent faire face. On parle d’invasion biologique lorsque des activités humaines permettent à une espèce de franchir des barrières qui jusqu’alors limitaient sa dispersion ou sa multiplication, entrainant une explosion géographique et démographique de l’espèce dans un nouvel écosystème et s’accompagnant éventuellement d’impacts économiques, sociétaux ou écologiques. La façon la plus efficace et la moins coûteuse de limiter les impacts causés par les espèce

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6

Dal, Maso Elisa. "Epidemiology and control strategies applied to ash dieback and chestnut ink disease." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424092.

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Main goal of forest diseases’ management is to reduce economic, biological and aesthetic damages and biodiversity loss caused by plant parasites. The many strategies used can be grouped under two main actions, prevention (prophylaxis in some early writings) and therapy (treatment or cure). Prevention is limited primarily by the lack of knowledge of the organisms involved, including host plants. Mathematical models have been used to extend the understanding of plant disease epidemiology on a number of fronts, providing an opportunity for a more rational use of resources on expensive field trial

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7

Serrano, Atuesta Yuliett Marcela. "Patterns of distribution of tree species in the neotropical lowland rainforest biome." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31237.

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This thesis aims to explore distributional patterns of tree species in the neotropical lowland rain forest biome based on diversity analyses, dated phylogenies and species distribution models, using the family Sapotaceae as a case study. Sapotaceae is an abundant and diverse group in the neotropical lowland rain forest and its distributional patterns are representative of other tree clades in this biome. These characteristics make this family a good model to test ecological and biogeographic hypothesis in neotropical rain forests. An analysis of beta-diversity measured by the number of shared

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Dutrieux, Mariane. "Spatio-temporal species distribution modeling: Application to invasive alien species’ monitoring." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224319.

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The developments of species distribution modeling techniques have brought new opportunities in the field of biological invasion management. In particular, statistical niche modeling for spatio-temporal predictions of species’ distribution is a widely spread tool that has proved its efficiency. The main purpose of this Master thesis is to study applicability of species distribution modeling to invasive alien species, with the aim of supporting efficient decision-making for their prevention. Some research questions are: how useful can species distribution modeling be for invasives’ prevention? I

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9

Andrade, André Felipe Alves de. "Estimativa da vulnerabilidade dos corais brasileiros." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/5592.

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Submitted by Cláudia Bueno (claudiamoura18@gmail.com) on 2016-05-19T19:46:17Z No. of bitstreams: 2 Dissertação - André Felipe Alves de Andrade - 2016.pdf: 2007118 bytes, checksum: 69341ce5bc6c459857d1feff5d92366e (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-05-20T13:54:17Z (GMT) No. of bitstreams: 2 Dissertação - André Felipe Alves de Andrade - 2016.pdf: 2007118 bytes, checksum: 69341ce5bc6c459857d1feff5d92366e (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714

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Bracken, Jason. "A Consensus Model for Predicting the Distribution of the Threatened Plant Telephus Spurge (Euphorbia Telephioides)." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1480622681613979.

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11

McHugh, Sean W. "Phylogenetic Niche Modeling." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/104893.

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Projecting environmental niche models through time is a common goal when studying species response to climatic change. Species distribution models (SDMs) are commonly used to estimate a species' niche from observed patterns of occurrence and environmental predictors. However, a species niche is also shaped by non-environmental factors--including biotic interactions and dispersal barrier—truncating SDM estimates. Though truncated SDMs may accurately predict present-day species niche, projections through time are often biased by environmental condition change. Modeling niche in a phylogenetic f

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12

Pereira, Miguel Ângelo da Silva. "Geographic modeling of habitats fragmentation and connectivity: case studies on species local pattern distribution." Doctoral thesis, Universidade de Évora, 2012. http://hdl.handle.net/10174/15404.

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Habitat fragmentation and the resultant reduction in connectivity are process of major importance in the persistence and patterns distribution of wildlife species. This thesis focuses on habitat fragmentation and connectivity, assessing their consequences on the local patterns distribution of wildlife species. The cases studies were published and conducted with monitoring data systematized using a common database. The case studies were located in the Alentejo region between the years of 1995 and 2005. The case studies are supported by examples of local impacts of fragmentation on the habitat c

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13

Matthews, Stephen Nicholas. "Modeling Bird Species Occurrence in Current and Future Landscapes." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/MatthewsSN2003.pdf.

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14

Haywood, Carly. "NINE-BANDED ARMADILLOS IN SOUTHERN ILLINOIS: DISEASES, SPATIAL DISTRIBUTION, AND LIVE-CAPTURE TECHNIQUES." OpenSIUC, 2020. https://opensiuc.lib.siu.edu/theses/2804.

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Originally endemic to South America, the nine-banded armadillo (Dasypus novemcinctus) has recently expanded its range northward to Illinois. With this range expansion comes concern from both wildlife managers and the general public regarding potential incoming pathogens and unknown impacts on native wildlife. My research, conducted during 2018-2020 in southern Illinois, addressed the following 3 objectives intended to provide information regarding this novel species: (1) test for the presence of Trypanosoma cruzi and Mycobacterium leprae, (2) model the potential distribution of armadillos, and

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15

Sirois-Delisle, Catherine. "Modeling Future Climate Change Impacts on North American Bumblebee Distributions." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/37028.

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Climate change is an important contributor to the modification of many bumblebee species’ range boundaries. It was linked to widespread decline at the southern edge of their distribution and to their inability to colonize new areas at the northern edge. Additionally, bumblebee decline is aggravated by other anthropogenic threats like land use change, agricultural practices and pathogen spillover. Predicted consequences are numerous, and could lead to severe economic and ecological impacts on human populations. A species-specific assessment of potential climate change impacts on North American

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16

Wirt, Ames Katherine. "Acropora Habitat Evaluation and Restoration Site Selection Using a Species Distribution Modeling Approach." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6158.

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While populations of nearly all stony coral species along the Florida reef tract have exhibited decline, the most notable decline has occurred in the once-dominant acroporid species (Acropora cervicornis, A. palmata). Both species were listed in 2006 as threatened under the Endangered Species Act. This listing, combined with their continued decline, has resulted in large-scale restoration efforts throughout Florida and the Western Caribbean. Currently, there is little to no information regarding spatial prioritization of sites for these restoration efforts. The primary objective of this disser

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17

Crego, Ramiro Daniel. "Modeling the distribution of meadows in arid and semi-arid Patagonia, Argentina: assessing current distribution and predicting response to climate change." OpenSIUC, 2012. https://opensiuc.lib.siu.edu/theses/1001.

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Meadows are critical in arid and semi-arid Argentinean Patagonia because of their importance for regional biodiversity. Despite this, little information on the spatial distribution of meadows is available and no analysis of the potential effect of climate change on meadows has been performed, which hampers conservation planning. In this study, I modeled the spatial distribution of meadows and investigated how climate change may affect the current distribution of meadows in arid and semiarid Patagonia by 2050. In addition, I investigated conservation status and areas of desertification vulnerab

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18

Tamburi, Marco. "Stochastic modeling of bacterial protein domains distribution to predict horizontal gene transfer." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8749/.

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In questo elaborato, abbiamo tentato di modellizzare i processi che regolano la presenza dei domini proteici. I domini proteici studiati in questa tesi sono stati ottenuti dai genomi batterici disponibili nei data base pubblici (principalmente dal National Centre for Biotechnology Information: NCBI) tramite una procedura di simulazione computazionale. Ci siamo concentrati su organismi batterici in quanto in essi la presenza di geni trasmessi orizzontalmente, ossia che parte del materiale genetico non provenga dai genitori, e assodato che sia presente in una maggiore percentuale rispetto agli o

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19

Johnston, Matthew W. "Computer Modeling the Incursion Patterns of Marine Invasive Species." NSUWorks, 2015. http://nsuworks.nova.edu/occ_stuetd/33.

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20

Werneck, Fernanda. "Diversification and Conservation in the South American Dry Biomes: Distribution Modeling and Multilocus Lizard Phylogeography." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3308.

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The understanding of diversification of intraspecific lineages can shed light on speciation processes and ultimately biogeographic patterns across multiple spatial and temporal scales. In this dissertation I investigated the geographical and ecological factors promoting diversification across the South American dry diagonal biomes (i.e. Cerrado, Chaco, and Seasonally Dry Tropical Forests - SDTFs), through a coupled approach between multilocus phylogeographic and geospatial methods, in the larger context of interpreting the consequences of the resulting patterns for the conservation of biodiver

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21

Eubanks, Bryan Wayne. "STATUS AND DISTRIBUTION OF THE STATE-THREATENED MARSH RICE RAT (ORYZOMYS PALUSTRIS) IN ILLINOIS." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/theses/168.

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The marsh rice rat (Oryzomys palustris) is a semi-aquatic rodent classified as state-threatened in Illinois due to historical wetland loss coupled with being on the northern periphery of its range. The most recent survey for this species in Illinois occurred in 1988, and this study reassessed its status and distribution. From 2007 to 2009, I used live traps to sample for rice rats at previously occupied and random wetland-dominated sites in 5 southern Illinois watersheds. I captured 132 individual rice rats 192 times in 13,248 trap nights. Capture success was 15.10 captures/1,000 trap nigh

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22

Marembo, Kudzanai Rosebud. "Identifying african wild dog (Lycaon pictus) corridors outside Gonarezhou National Park and Save Valley Conservancy using maxent species distribution modeling." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96893.

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Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT:The African wild dog (Lycaon pictus) is one of the most endangered large carnivores. Gonarezhou National Park (GNP) and Savè Valley Conservancy (SVC) that hold part of the few remaining viable populations report that wild dog populations continue to decline due to high rates of habitat loss and fragmentation. This leads to low pup survival rates due to predators and reduced formation of new packs as the wild dogs have become reluctant to leave the safety of their original packs in pursuit of mating partners in fragmented habitats

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23

Barron, II Joseph Charles. "Bog Turtle Distribution in Virginia: Assessing Proposed Methods for Finding New Localities and Examining Movement Between Wetlands." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/104160.

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Freshwater turtles are among the most threatened groups of taxa globally, and the bog turtle, Glyptemys muhlenbergii is among the most imperiled in North America. In Virginia, USA, bog turtles are restricted to occupying Appalachian Mountain fens. Fens are naturally small and fragmented wetlands characterized by elevated water tables and an open canopy. Although there is a strong need to document and monitor populations of bog turtles, efforts to do so are often limited by the low detection of the species. The first objective of this thesis was to assess proposed methodologies for locating pop

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24

Roderique, Bonnie A. "IMPROVING THE CONSERVATION OF A CRYPTIC ENDANGERED FRESHWATER MUSSEL (PARVASPINA COLLINA) THROUGH THE USE OF ENVIRONMENTAL DNA AND SPECIES DISTRIBUTION MODELING." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5552.

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Conservation efforts that involve habitat protection, population augmentation, and species reintroductions require knowledge of the habitat requirements, distribution, and abundance of a species—information that can be challenging to acquire, especially for rare organisms with patchy distributions. In this thesis, I develop a protocol for the use of environmental DNA (eDNA) and create a Species Distribution Model for the endangered James spinymussel, Parvaspina collina (Unionidae). The results of this work show that eDNA is a robust tool for identifying species presence but not for estimating

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25

Yadav, Sunita. "The Influence of Climate and Topography in Modeling Distributions for Species with Restricted Ranges: A Case Study Using the Hawaiian Endemic Plant Genus, Schiedea (Caryophyllaceae)." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1447690823.

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26

Besnard, Aurélien. "Distribution et sélection d’habitat des passereaux prairiaux en plaine d’inondation." Thesis, Angers, 2014. http://www.theses.fr/2014ANGE0022/document.

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L’intensification des pratiques agricoles de ces dernières décennies a engendré des modifications profondes des écosystèmes agricoles. Les oiseaux prairiaux sont particulièrement concernés par ces changements et ont fortement décliné. La mise en place de Mesures Agro-Environnementales (MAE) n’ont pas permis d’enrayer ce déclin et une évaluation de leur efficacité passe au préalable par une compréhension affinée des réponses écologiques des espèces dans l’écosystème considéré. Nous avons ainsi tenté de mieux comprendre la distribution et la sélection d’habitat des oiseaux prairiaux dans les pla

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27

Olson, Christina A. "Diet, Density, and Distribution of the Introduced Greenhouse Frog, Eleutherodactylus planirostris, on the Island of Hawaii." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/866.

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The greenhouse frog, Eleutherodactylus planirostris, native to Cuba and the Bahamas, was recently introduced to Hawaii. Studies from other invaded habitats suggest that it may impact Hawaiian ecosystems by consuming and potentially reducing endemic invertebrates. However, there have been no studies on the greenhouse frog in Hawaii. The first component of this study was to conduct a diet analysis. We conducted a stomach content analysis of 427 frogs from 10 study sites on the island of Hawaii. At each site, we also collected invertebrates using two different sampling methods: leaf litter co

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28

Donoghue, John, and John Donoghue. "Geographic Range Size: Measuring The Fundamental Unit Of Biogeography and Evaluating Climatic Factors That May Influence Longitudinal Range Size Gradients In North American Trees." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/623260.

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This research seeks to advance our understanding of how to make better informed species conservation decisions on a global scale and advance our understanding of how species' spatial distributions (their geographic ranges) may be respond to climate change, so we can know which areas should be set aside to ensure their present and future conservation. To understand how species' geographic ranges may change, it's important to first assess how geographic ranges are defined and measured. The quantifiable measurement of a species' geographic range, (its geographic range size), is a key criterion th

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29

Thomasson, Victor. "Habitat Suitability Modeling for the Eastern Hog-nosed Snake, 'Heterodon platirhinos', in Ontario." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23322.

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With exploding human populations and landscapes that are changing, an increasing number of wildlife species are brought to the brink of extinction. In Canada, the eastern hog-nosed snake, 'Heterodon platirhinos', is found in a limited portion of southern Ontario. Designated as threatened by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC), this reptile has been losing its habitat at an alarming rate. Due to the increase in development of southern Ontario, it is crucial to document what limits the snake’s habitat to direct conservation efforts better, for the long-term sur

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Bravo, Vinaja Maria Guadalupe. "Evaluation of landscape level habitat characteristics of golden eagle habitat in Northwestern Mexico." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/39683.

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Golden eagles (Aquila chrysaetos canadensis Linnaeus 1758) are declining in some areas throughout their Nearctic range (Sauer et al. 2011). This reduction is linked to changes in their habitat caused by human activities. Golden eagles inhabit an extensive range of environments (Watson 1997, Kochert et al. 2002). In the American Continent, the golden eagleâ s range encompasses Alaska, Canada, the United States and the Northern and Central portions of Mexico. Northern golden eagle populations migrate during winter to southern grounds, crossing international boundaries of Canada, the US and Mex

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Koch, Jonathan B. "The decline and conservation status of North American bumble bees." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1015.

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Several reports of North American bumble bee (Bombus Latreille) decline have been documented across the continent, but no study has fully assessed the geographic scope of decline. In this study I discuss the importance of Natural History Collections (NHC) in estimating historic bumble bee distributions and abundances, as well as in informing current surveys. To estimate changes in distribution and relative abundance I compare historic data assembled from a >73,000 specimen database with a contemporary 3-year survey of North American bumble bees across 382 locations in the contiguous U.S.A. Bas

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Mosher, Danika L., and T. Andrew Joyner. "Interpreting Paleoclimate and Species Distributions of Red Spruce and Fraser Firs in the Southern Appalachians to Predict Impacts of Climate Change on Forest Habitats." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/asrf/2019/schedule/73.

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Spruce-Fir forests are relicts from the Pleistocene and have migrated back north after the previous warming period as well as up in elevation in the southern Appalachian mountains. This in turn created sky islands of isolated, endemic, and disjunct species. These refugal forests require certain climatic parameters similar to Canada’s boreal mountains but also need additional cloud immersion and precipitation. These forests have experienced stressors in the past, but face continued threats such as air pollution and climate change. Due to limited immigration for the majority of the species on th

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Bledsoe, April Dawn. "A Tale of Two Species: Black-tailed and White-tailed Prairie Dog Biogeography from the Last Interglacial to 2070." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etd/3764.

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Ecological niche models (ENMs) were created for White-tailed and Black-tailed prairie dogs and projected into the Last Interglacial (LI), the Last Glacial Maximum (LGM), and mid-Holocene (mid-H) to discern possible past suitable habitat for both species. Additionally, ENMs were projected into the future year 2070 representative concentration pathways (RCPs) 2.6 and 8.5 to discern how climate change may affect future habitat suitability. Kernel density estimations, minimum convex polygons, and median distribution centers of White-tailed and Black-tailed occurrence records were examined between

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Borba, Cleverton Ferreira. "Estratégias de computação para suportar interoperabilidade entre modelos processados por ferramentas de modelagem de distribuição de espécies." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-07112017-090008/.

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A área de pesquisa denominada Informática para Biodiversidade enfrenta o desafio de suprir a demanda por tecnologia de apoio à conservação da biodiversidade. Dentre as áreas da ecologia que se beneficiam de recursos tecnológicos, a modelagem de distribuição de espécies se destaca pelo número de ferramentas e de algoritmos desenvolvidos para os pesquisadores da área. No entanto, estudos demostram que a modelagem tem se tornado mais complexa, bem como, a necessidade por melhorias da aplicação de novas técnicas e soluções computacionais. A interoperabilidade computacional para os dados de biodive

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Maegan, Annette Fitzgerald. "Contextualizing chimpanzee research within the socioecological landscape of the Forestière region of the Republic of Guinea, Africa." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/265178.

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付記する学位プログラム名: 霊長類学・ワイルドライフサイエンス・リーディング大学院<br>京都大学<br>新制・課程博士<br>博士(理学)<br>甲第23406号<br>理博第4741号<br>新制||理||1680(附属図書館)<br>京都大学大学院理学研究科生物科学専攻<br>(主査)教授平田聡, 教授村山美穂, 教授伊谷原一<br>学位規則第4条第1項該当<br>Doctor of Science<br>Kyoto University<br>DGAM

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Armstrong, Zoey Nicole. "Modeling distributions of Cantharellus formosus using natural history and citizen science data." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1619006107999476.

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Erlandsson, Mårten. "Ensemblemodellering av piggvarens habitat utgående från provfiske- och miljödata." Thesis, Institutionen för akvatiska resurser, SLU, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-281462.

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Piggvarens (Scophthalmus maximus) val av habitat i Östersjön har modellerats utifrån provfiskedata och miljövariabler. Vid totalt 435 stationer i Östersjön har data samlats in i form av provfiske, CTD-mätningar (konduktivitet, temperatur och djup) och videofilmer. Genom att analysera videofilmerna från havsbotten i Östersjön har den klassificerats efter fyra olika förklaringsvariabler: täckningsgrad mjukbotten, strukturbildande växter, övriga alger och täckningsgrad blåmusslor. Ytterligare sex förklaringsvariabler har samlats in från mätningar och befintliga kartor: bottensalinitet, bottentemp

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Potter, Douglass W. "A GIS MODEL FOR APIARY SITE SELECTION BASED ON PROXIMITY TO NECTAR SOURCES UTILIZED IN VARIETAL HONEY PRODUCTION ON FORMER MINE SITES IN APPALACHIA." UKnowledge, 2019. https://uknowledge.uky.edu/forestry_etds/46.

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Beekeepers in Appalachia market varietal honeys derived from particular species of deciduous trees; however, finding places in a mountainous landscape to locate new beeyards is difficult. Site selection is hindered by the high up-front costs of negotiating access to remote areas with limited knowledge of the available forage. Remotely sensed data and species distribution modeling (SDM) of trees important to beekeepers could aid in locating apiary sites at the landscape scale. The objectives of this study are i) using publicly available forest inventory data, to model the spatial distribution o

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Burnett, Anya Cheyenne. "Modeling habitat use of a fringe greater sage-grouse population at multiple spatial scales." Thesis, Utah State University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1543457.

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<p> While range-wide population declines have prompted extensive research on greater sage-grouse (<i>Centrocercus urophasianus</i>), basic information about southern periphery populations, such as the Bald Hills population in southern Utah, has not been documented. The objective of this research was to determine habitat preferences and space use patterns of the Bald Hills sage-grouse population which occurs in an area of high potential for renewable energy development. I tracked 66 birds via VHF telemetry in 2011 and 2012 and surveyed vegetation plots throughout the study area. I found that th

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Roberto, Vinicius Alberici. "Distribuição potencial e atual do tamanduá-bandeira (Myrmecophaga tridactyla) e indicação de áreas prioritárias para sua conservação." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/91/91131/tde-02052018-182256/.

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O tamanduá-bandeira (Myrmecophaga tridactyla) se distribui amplamente ao longo da região Neotropical, porém é provável que esteja extinto da maior parte de sua extensão original, notadamente na América Central e nos limites austrais de sua distribuição. O táxon está ameaçado de extinção globalmente (IUCN) e também em âmbito nacional. Embora historicamente a espécie ocorra em todos os biomas brasileiros, hoje é considerada extinta nos Pampas, quase extinta na Mata Atlântica, sendo que na Caatinga sua presença necessita de confirmação e no Cerrado suas populações vem sofrendo drásticas reduções.

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Davidson, Fiona. "Predicting Glass Sponge (Porifera, Hexactinellida) Distributions in the North Pacific Ocean and Spatially Quantifying Model Uncertainty." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40028.

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Predictions of species’ ranges from distribution modeling are often used to inform marine management and conservation efforts, but few studies justify the model selected or quantify the uncertainty of the model predictions in a spatial manner. This thesis employs a multi-model, multi-area SDM analysis to develop a higher certainty in the predictions where similarities exist across models and areas. Partial dependence plots and variable importance rankings were shown to be useful in producing further certainty in the results. The modeling indicated that glass sponges (Hexactinellida) are most l

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Brito, Gustavo Reis de. "Aplicação da modelagem preditiva de distribuição de espécies como ferramenta de estudo da biodiversidade." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153218.

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Submitted by Gustavo Reis de Brito null (gustavrbrito@hotmail.com) on 2018-03-26T12:32:43Z No. of bitstreams: 1 brito_gr_de_dissert_comp.pdf: 9722325 bytes, checksum: 531c28b91fdc904535dc79b2434e8422 (MD5)<br>Approved for entry into archive by Laura Akie Saito Inafuko (linafuko@assis.unesp.br) on 2018-03-26T17:07:47Z (GMT) No. of bitstreams: 1 brito_gr_me_assis.pdf: 9722325 bytes, checksum: 531c28b91fdc904535dc79b2434e8422 (MD5)<br>Made available in DSpace on 2018-03-26T17:07:47Z (GMT). No. of bitstreams: 1 brito_gr_me_assis.pdf: 9722325 bytes, checksum: 531c28b91fdc904535dc79b2434e8422 (M

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Favalesso, Marília Melo. "Condições ecológicas e predição de áreas adequáveis para ocorrência de Lonomia obliqua Walker 1855 no Brasil." Universidade Estadual do Oeste do Paraná, 2018. http://tede.unioeste.br/handle/tede/3961.

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Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-09-28T18:12:13Z No. of bitstreams: 2 Marilia_Favalesso_2018.pdf: 1901703 bytes, checksum: 0d9b6ae60903ec7aa858792cf86a51f2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in DSpace on 2018-09-28T18:12:13Z (GMT). No. of bitstreams: 2 Marilia_Favalesso_2018.pdf: 1901703 bytes, checksum: 0d9b6ae60903ec7aa858792cf86a51f2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-02-19<br>Coordenação de Aperfeiçoamento de Pessoal de Nível

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Huddleston, Jody Sue. "Conducting Tick-Borne Disease Research in Texas with a Focus on Rickettsia spp." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1703370/.

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The field of vector-borne disease research uses multidisciplinary approaches to help understand complicated interactions. This dissertation, covers three different aspects of tick-borne disease research which all focus on exploring tick-borne diseases in the non-endemic areas of Denton, County Texas and the state of Texas with a focus on Rickettsia spp. These aspects include tick sampling, testing ticks for the presence of Rickettsia spp., and creating species distribution maps of the Rickettsia spp. Rickettsia amblyommatis and tick species Amblyomma americanum.

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ROCHA, Bruno César Luz. "Habitats adequados e aspectos ecológicos do tubarão-baleia (Rhincodon, typus Smith 1828) no Oceano Atlântico Sudoeste e Equatorial." Universidade Federal da Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/18654.

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Submitted by Rafael Santana (rafael.silvasantana@ufpe.br) on 2017-04-26T19:32:19Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese_B_Macena_Full_Tubaleia_oficial_FINAL_BIB.pdf: 3006322 bytes, checksum: 3a1ffaf6152b8966edc8c3989913e65f (MD5)<br>Made available in DSpace on 2017-04-26T19:32:19Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese_B_Macena_Full_Tubaleia_oficial_FINAL_BIB.pdf: 3006322 bytes, checksum: 3a1ffaf6152b8966edc8c3989913e65f (MD5) Previous issue date: 2016-12-01<br>CN

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Rodrigues, Fabrício Augusto. "Um método de referência para análise de desempenho preditivo de algoritmos de modelagem de distribuição de espécies." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-07052012-121050/.

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A modelagem de distribuição de espécies tem como objetivo induzir um modelo para predizer a distribuição potencial de uma dada espécie. O modelo é projetado em um mapa de distribuição potencial que representa a probabilidade da presença da espécie em cada ponto. Esse processo de indução está relacionado com a estimativa do nicho fundamental da espécie, através da busca por relações entre dados georreferenciados de ocorrência da espécie e variáveis ambientais. Vários algoritmos de modelagem podem ser utilizados nessa tarefa. Oferecer diversos algoritmos pode tornar as ferramentas de modelagem m

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Rodrigues, Elisângela Silva da Cunha. "Teoria da informação e adaptatividade na modelagem de distribuição de espécies." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-07052012-122345/.

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A modelagem de distribuição de espécies é uma técnica cuja finalidade é estimar modelos baseados em nichos ecológicos. Esses modelos podem auxiliar nos processos de tomadas de decisões, no planejamento e na realização de ações que visem a conservação e a preservação ambiental. Existem diversas ferramentas projetadas para modelagem de distribuição de espécies, dentre elas o framework openModeller, na qual este trabalho está inserido. Várias técnicas de Inteligência Artificial já foram utilizadas para desenvolver algoritmos de modelagem de distribuição de espécies, como Entropia Máxima. No entan

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Verdi, Marcio. "Prediçao de distribuíção de espécies arbustivo-arbóreas no sul do Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/115515.

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Em vista das mudanças ambientais em nível global, disponibilizar informações ecológicas e buscar uma melhor compreensão dos fatores e processos que moldam a distribuição de espécies, é uma iniciativa importante para o planejamento de ações de conservação. Neste contexto, a importância e carência de informações sobre a distribuição geográficas das espécies nos motivaram a predizer a distribuição potencial de arbustos e árvores das famílias Lauraceae e Myrtaceae na Floresta Atlântica, no sul do Brasil. Modelos lineares generalizados (GLM) foram usados para ajustar modelos preditivos com os regis

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Marija, Miličić. "Funkcionalni karakteri i modelovanje distribucije vrsta osolikih muva (Diptera: Syrphidae) jugoistočne Evrope u proceni rizika od izumiranja." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=105155&source=NDLTD&language=en.

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U radu je izvr&scaron;ena podela 572 registrovane vrste osolikih muva sa područja jugoistočne Evrope na funkcionalne grupe, na osnovu registrovanih funkcionalnih karaktera. Zaodabrane 44 endemske i nativne ne-endemske vrste koje su svojim klimatskim ni&scaron;ama ograničene na istraživani prostor, kreirane su mape sada&scaron;nje i buduće potencijalne distribucije (za dva perioda, 2041 -2060 i 2061-2080) upotrebom MAXENT algoritma. Na osnovu dobijenih mapa, izračunata je potenijalna promena areala za odabrane vrste, čime je procenjen efekat klimatskih promena na distribuciju vrsta sirfida. Det

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Lockshin, Sam. "Spatial characterization of Western Interior Seaway paleoceanography using foraminifera, fuzzy sets and Dempster-Shafer theory." Bowling Green State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1462803004.

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