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Articles 1 - 30 of 1106

Full-Text Articles in Other Ecology and Evolutionary Biology

Quantifying Pollen Traits To Build A Mathematical Model Of Pollen Competition - A Mathematician's Perspective, Montana Ferita, Julie Fucarino, Alex Capaldi, Charlotte Beckford Oct 2019

Quantifying Pollen Traits To Build A Mathematical Model Of Pollen Competition - A Mathematician's Perspective, Montana Ferita, Julie Fucarino, Alex Capaldi, Charlotte Beckford

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Quantifying Pollen Traits To Build A Mathematical Model Of Pollen Competition - A Biologist's Perspective, Rob Swanson, Alex Capaldi Oct 2019

Quantifying Pollen Traits To Build A Mathematical Model Of Pollen Competition - A Biologist's Perspective, Rob Swanson, Alex Capaldi

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Materials Collected By The Southern Branch Of The Uc Africa Expedition With A Report On Previously Unpublished Plio-Pleistocene Fossil Localities, Tesla A. Monson, Marianne F. Brasil, Leslea J. Hlusko Sep 2019

Materials Collected By The Southern Branch Of The Uc Africa Expedition With A Report On Previously Unpublished Plio-Pleistocene Fossil Localities, Tesla A. Monson, Marianne F. Brasil, Leslea J. Hlusko

Tesla Monson

From 1947 to 1948, paleontologists from the University of California Museum of Paleontology (UCMP), Charles Camp and Frank Peabody, led the southern branch of the University of California’s Africa Expedition. While in South Africa, Camp and Peabody collected thousands of specimens excavated from more than 70 sites, 40 of which make up the Plio-Pleistocene South African assemblage at the UCMP. Materials collected by researchers accompanying the expedition are held at numerous repositories on the University of California Berkeley campus including the UCMP, the Museum of Vertebrate Zoology (MVZ), the Phoebe A. Hearst Museum of Anthropology and the University of ...


Wildlife Conservation, Zoos And Animal Protection: A Strategic Analysis, Andrew N. Rowan Sep 2019

Wildlife Conservation, Zoos And Animal Protection: A Strategic Analysis, Andrew N. Rowan

Andrew N. Rowan, DPhil

The publication consists of the proceedings of a workshop, sponsored by the Gilman Foundation, and held in April of 1994 at the White Oak Conservation Center in Florida. About thirty participants were invited from zoos, animal protection groups and academic institutions to discuss concepts such as wild, captive and tame; animal well-being in the wild and in zoos; and protecting individuals versus conserving populations. In order to maximize the time engaged in discussion, several individuals were identified to prepare target articles which were distributed to all participants before the meeting. These articles form the main chapters in this book. Other ...


International Consensus Principles For Ethical Wildlife Control, Sara Dubois, Nicole Fenwick, Erin A. Ryan, Liv Baker, Sandra E. Baker, Ngaio J. Beausoleil, Scott Carter, Barbara Cartwright, Federico Costa, Chris Draper, John Griffin, Adam Grogan, Gregg Howald, Bidda Jones, Kate E. Littin, Amanda T. Lombard, David J. Mellor, Daniel Ramp, Catherine A. Schuppli, David Fraser Sep 2019

International Consensus Principles For Ethical Wildlife Control, Sara Dubois, Nicole Fenwick, Erin A. Ryan, Liv Baker, Sandra E. Baker, Ngaio J. Beausoleil, Scott Carter, Barbara Cartwright, Federico Costa, Chris Draper, John Griffin, Adam Grogan, Gregg Howald, Bidda Jones, Kate E. Littin, Amanda T. Lombard, David J. Mellor, Daniel Ramp, Catherine A. Schuppli, David Fraser

David Fraser, PhD

Human–wildlife conflicts are commonly addressed by excluding, relocating, or lethally controlling animals with the goal of preserving public health and safety, protecting property, or conserving other valued wildlife. However, declining wildlife populations, a lack of efficacy of control methods in achieving desired outcomes, and changes in how people value animals have triggered widespread acknowledgment of the need for ethical and evidence-based approaches to managing such conflicts. We explored international perspectives on and experiences with human–wildlife conflicts to develop principles for ethical wildlife control. A diverse panel of 20 experts convened at a 2-day workshop and developed the principles ...


Diversity And Abundance Of Soil Microbes Differ Along A Forest-Pasture Transect, Hannah Suli, Ashley Schumann, Cleo Bickley, Jasmine Rodriguez Sep 2019

Diversity And Abundance Of Soil Microbes Differ Along A Forest-Pasture Transect, Hannah Suli, Ashley Schumann, Cleo Bickley, Jasmine Rodriguez

IdeaFest: Interdisciplinary Journal of Creative Works and Research from Humboldt State University

No abstract provided.


The Evolution Of Spinosad Resistance In Colorado Potato Beetles (Leptinotarsa Decemlineata), Coby Michael Klein Sep 2019

The Evolution Of Spinosad Resistance In Colorado Potato Beetles (Leptinotarsa Decemlineata), Coby Michael Klein

All Dissertations, Theses, and Capstone Projects

Colorado potato beetles (Leptinotarsa decemlineata) are a major pest of cultivated potato plants worldwide. They are well-known for their ability to rapidly evolve resistance to all major classes of pesticides. Defoliation of potato plants by L. decemlineata can reduce potato yields by a considerable margin. The damage done by resistant beetles is steep and much research is focused on developing new chemical controls, especially those derived from naturally occurring compounds. Spinosad is a relatively new natural product insecticide, introduced approximately a decade ago, suitable for use in organic farming. Potato beetles on Long Island, NY developed very strong resistance to ...


Isolation Of Caldatribacterium (Op9) And Investigation Of Its Potential Interactions With A Novel, Co-Cultivated Thermodesulfobacterium Species, Toshio Alvarado Sep 2019

Isolation Of Caldatribacterium (Op9) And Investigation Of Its Potential Interactions With A Novel, Co-Cultivated Thermodesulfobacterium Species, Toshio Alvarado

Electronic Theses, Projects, and Dissertations

Atribacteria (OP9), candidate phylum with no representatives in pure culture, is found in various anaerobic environments worldwide. “Caldatribacterium”, a lineage within Atribacteria that is predicted to be a strictly anaerobic sugar fermenter based on cultivation-independent genomic analyses, is currently being maintained in lab enrichment cultures with fucose as its sole growth substrate. Metagenomics and 16S rRNA gene tag sequencing indicated that the fucose culture was a co-culture of “Caldatribacterium” and an uncultivated member of the genus Thermodesulfobacterium. Due to failed attempts to isolate “Caldatribacterium” by dilution-to-extinction and plating, it was hypothesized that “Caldatribacterium” is dependent in some way on the ...


Using Single-Cell Sorting, Fish And 13c-Labeling To Cultivate And Assess Carbon Substrate Utilization Of ‘Aigarchaeota’ And Other Novel Thermophiles, Damon Kurtis Mosier Sep 2019

Using Single-Cell Sorting, Fish And 13c-Labeling To Cultivate And Assess Carbon Substrate Utilization Of ‘Aigarchaeota’ And Other Novel Thermophiles, Damon Kurtis Mosier

Electronic Theses, Projects, and Dissertations

‘Aigarchaeota’, a deeply branching lineage in the domain Archaea with no cultivated representatives, includes both thermophilic and hyperthermophilic microorganisms that reside in terrestrial and marine geothermal environments. The ‘Aigarchaeota’ consists of at least nine proposed genus-level groups that have been confirmed via 16S rRNA sequencing, with ‘Aigarchaeota’ Group 1 (AigG1) being the focus of this study. Based on cultivation-independent genomic data available from several AigG1 members in Great Boiling Spring (GBS), NV, and Yellowstone National Park, 22 different types of growth media were designed and tested for their ability to support growth of AigG1. One of these cultures, G1-10, was ...


Deep Benthic Coral Habitats Of Glacier Bay National Park And Preserve, Alaska, Elise C. Hartill Aug 2019

Deep Benthic Coral Habitats Of Glacier Bay National Park And Preserve, Alaska, Elise C. Hartill

Electronic Theses and Dissertations

Glacier Bay National Park and Preserve in Southeast Alaska is a system of fjords that presents an ideal natural laboratory to study terrestrial, aquatic and marine patterns of succession due to its unique and recent history of deglaciation. The patterns of deep benthic community assemblages in the fjords of Glacier Bay were investigated by quantitative assessment of underwater photo-quadrats collected using a remotely operated vehicle. The percent cover and diversity of species were lowest near the glaciated heads of the fjords and highest in the Central Channel and at the mouths of the fjords of Glacier Bay, where oceanographic conditions ...


Social-Ecological Heterogeneity Shapes Resilience Of Small-Scale Fisheries: An Interdisciplinary Analysis Of The Mexican Chocolate Clam Fishery In Loreto, Mexico, Kara E. Pellowe Aug 2019

Social-Ecological Heterogeneity Shapes Resilience Of Small-Scale Fisheries: An Interdisciplinary Analysis Of The Mexican Chocolate Clam Fishery In Loreto, Mexico, Kara E. Pellowe

Electronic Theses and Dissertations

All benefits provided by natural systems are embedded within coupled social-ecological systems (SESs). Fisheries are clear examples of SESs: through fishing, humans affect ecosystem structure and functioning, and in turn, receive benefits, including sustenance, employment, and cultural value. Resilience, the ability to maintain structure and function in the face of change, is key to sustaining the social and ecological components of fisheries-related SESs and their interactions. Many factors contribute to resilience, including heterogeneity. By identifying heterogeneity in these complex systems, we are better able to understand the capacity of fishery-related SESs to adapt to change, and contribute to management that ...


Uncovering The True Diversity Of Chanterelles In Indiana, Jairus Chittenden Aug 2019

Uncovering The True Diversity Of Chanterelles In Indiana, Jairus Chittenden

The Journal of Purdue Undergraduate Research

No abstract provided.


Does A Carbonatite Deposit Influence Its Surrounding Ecosystem?, James M.C. Jones, Elizabeth A. Webb, Michael D.J. Lynch, Trevor C. Charles, Pedro M. Antunes, Frédérique C. Guinel Aug 2019

Does A Carbonatite Deposit Influence Its Surrounding Ecosystem?, James M.C. Jones, Elizabeth A. Webb, Michael D.J. Lynch, Trevor C. Charles, Pedro M. Antunes, Frédérique C. Guinel

Biology Faculty Publications

Carbonatites are unusual alkaline rocks with diverse compositions. Although previous work has characterized the effects these rocks have on soils and plants, little is known about their impacts on local ecosystems. Using a deposit within the Great Lakes–St. Lawrence forest in northern Ontario, Canada, we investigated the effect of a carbonatite on soil chemistry and on the structure of plant and soil microbial communities. This was done using a vegetation survey conducted above and around the deposit, with corresponding soil samples collected for determining soil nutrient composition and for assessing microbial community structure using 16S/ITS Illumina Mi-Seq sequencing ...


Methodological Advances For Understanding Social Connectivity And Environmental Implications In Multi-Use Landscapes, Matthew Clark Aug 2019

Methodological Advances For Understanding Social Connectivity And Environmental Implications In Multi-Use Landscapes, Matthew Clark

Boise State University Theses and Dissertations

Integrated social-ecological systems research is challenging; complicated feedback and interactions across scales in multi-use landscapes are difficult to decouple. Novel methods and innovative data sources are needed to advance social-ecological systems research. In this thesis, we use network science as a means of explicitly assessing feedback between social and ecological systems, and internet search data to better predict visitation in protected areas. This thesis seeks to provide empirical examples of emerging social-ecological systems science methods as a precedent for resource managers on-the-ground, as well as extending the line of scientific inquiry on the subject

In the first chapter of this ...


Response Of Early Life Stage Homarus Americanus To Ocean Warming And Acidification: An Interpopulation Comparison, Maura K. Niemisto Aug 2019

Response Of Early Life Stage Homarus Americanus To Ocean Warming And Acidification: An Interpopulation Comparison, Maura K. Niemisto

Electronic Theses and Dissertations

Anthropogenic carbon released into the atmosphere is driving rapid, concurrent increases in temperature and acidity across the world’s oceans, most prominently in northern latitudes. The geographic range of the iconic American lobster (Homarus americanus) spans a steep thermal gradient and one of the most rapidly warming oceanic environments. Understanding the interactive effects of ocean warming and acidification on this species’ most vulnerable early life stages is important to predict its response to climate change on a stage-specific and population level. This study compares the responses of lobster larvae from two sub-populations spanning New England’s north-south temperature gradient (southern ...


The Value Of Inspection Stations For Detecting Nonindigenous Species Lacking Agricultural Significance: The Mexican Treefrog, Smilisca Baudinii Complex (Duméril And Bibron 1841) (Hylidae), Interdicted In Florida, Usa, From A Shipment Of Peppers, Louis A. Somma Aug 2019

The Value Of Inspection Stations For Detecting Nonindigenous Species Lacking Agricultural Significance: The Mexican Treefrog, Smilisca Baudinii Complex (Duméril And Bibron 1841) (Hylidae), Interdicted In Florida, Usa, From A Shipment Of Peppers, Louis A. Somma

Papers in Herpetology

A Mexican Treefrog, Smilisca baudinii, a nonindigenous species, was interdicted for the first time from an imported shipment of peppers. The value of agriculture inspection stations used to make these interdictions is discussed. This is a single cargo interception (Stage 1: Colautti and MacIsaac 2004) and the first record for S. baudinii intercepted in Florida. Currently no evidence suggests that S. baudinii has been successfully introduced into and established in Florida, although this species could survive climatic conditions in the southern part of the state and at the scheduled destination of this shipment.

Cargo transport of alien species is a ...


The ‘Law Of Environmental Dependence’ - Biology And Ethics In The Work Of Ernest Everett Just: + Found – Some 251 Mostly Typed Pages, Theodore Walker Jul 2019

The ‘Law Of Environmental Dependence’ - Biology And Ethics In The Work Of Ernest Everett Just: + Found – Some 251 Mostly Typed Pages, Theodore Walker

Perkins Faculty Research and Special Events

Abstract-

“The Origin of Man’s Ethical Behavior” (circa October 1941) by Ernest Everett Just and Hedwig A. Schnetzler Just - is an unpublished book manuscript about the biological origins and evolution of ethical behavior, and about “the law of environmental dependence.” Missing since Just’s death in October 1941, it was found and identified in May 2018 among the collected papers of Ernest Everett Just preserved at the Howard University Moorland-Spingarn Research Center in Washington, DC. In addition to the 1996 US postage with the caption “Ernest E. Just, Biologist,” we now have reason to add two new postage stamps ...


The Interaction Of Phylogeny And Community Structure: Linking The Community Composition And Trait Evolution Of Clades, William D. Pearse, Pierre Legendre, Pedro R. Peres-Neto, T. Jonathan Davies Jul 2019

The Interaction Of Phylogeny And Community Structure: Linking The Community Composition And Trait Evolution Of Clades, William D. Pearse, Pierre Legendre, Pedro R. Peres-Neto, T. Jonathan Davies

Ecology Center Publications

Aim

Community phylogenetic studies use information about the evolutionary relationships of species to understand the ecological processes of community assembly. A central premise of the field is that the evolution of species maps onto ecological patterns, and phylogeny reveals something more than species traits alone about the ecological mechanisms structuring communities, such as environmental filtering, competition, and facilitation. We argue, therefore, that there is a need for better understanding and modelling of the interaction of phylogeny with species traits and community composition.

Innovation

We outline a new approach that identifies clades that are ecophylogenetically clustered or overdispersed and assesses whether ...


Species-Area Model Predicting Diversity Loss In An Artificially Flooded Cave In Brazil, Rodrigo L. Ferreira, Thais G. Pellegrini Jul 2019

Species-Area Model Predicting Diversity Loss In An Artificially Flooded Cave In Brazil, Rodrigo L. Ferreira, Thais G. Pellegrini

International Journal of Speleology

Subterranean environments are poorly known regarding many ecological aspects, such as community structure and its response to different disturbances. To estimate the effects of ground area lost in a limestone cave community in Southeastern Brazil, the invertebrate fauna was sampled before 76% of the cave floor was submerged by the filling of a hydroeletric power plant reservoir. Then, a 2-year monitoring was conducted. A species-area curve based on empiric data was constructed and the z-value of the species-area equation was calculated, what allowed estimating the expected cave richness after flooding comparing with data obtained during the monitoring. The results support ...


Forest Structure Of Long-Term Conserved Areas Utilizing Different Strategies On A Continental, Glacial Moraine Formed Island, Christopher Coggin Jul 2019

Forest Structure Of Long-Term Conserved Areas Utilizing Different Strategies On A Continental, Glacial Moraine Formed Island, Christopher Coggin

Masters Theses

Understanding patterns of forest succession can help advise management plans within New England nature preserves. This study took place on Block Island, 13 miles off the coast of Rhode Island. The island has greater than 200+ years of farming practices. After 1960, conservation groups began reforesting the island using different strategies, such as actively planting with native and exotic tree species, mowing, and preventing further development. In 2018, woody vegetation was inventoried along transects within four reforested sites. Sites were characterized as the following: actively planted with exotic and native tree species and mowed (AP-M), actively planted with exotic and ...


Pollinator Visitation Frequency Associated With Native And Non-Native Plants In A Mid-Atlantic Piedmont (Usa) Urban Garden, Nicholas J. Ruppel, Saunders M. Riley, Ellis D. Mumford, Barbara L. Swedo Jul 2019

Pollinator Visitation Frequency Associated With Native And Non-Native Plants In A Mid-Atlantic Piedmont (Usa) Urban Garden, Nicholas J. Ruppel, Saunders M. Riley, Ellis D. Mumford, Barbara L. Swedo

Virginia Journal of Science

The recent focus on the importance of native plants and their pollinators has highlighted the critical role of local species in their natural environment. As urban encroachment, climate change, and invasive species continues to threaten native habitats, it is increasingly important to promote the use of local green spaces as refugia for native plants and their pollinators. The aim of this project, therefore, was to identify and assess the visitation frequency of insect pollinators associated with an urban setting within the Piedmont region of Virginia, and compare their association with native versus closely-related but non-native summer-flowering plants. Several modes of ...


Sex-Specific Personalities In The Purple Marsh Crab, Jillian Sterman, Jessica Barton, Panagiota Delmedico, Samantha Sweeney Jun 2019

Sex-Specific Personalities In The Purple Marsh Crab, Jillian Sterman, Jessica Barton, Panagiota Delmedico, Samantha Sweeney

DePaul Discoveries

Animals are considered to possess personalities when individuals differ in behavior, and these differences are consistent between situations. Several studies have identified personalities in diverse groups but less is known about personality variation between the sexes. In this study, we examined variation in two key personality traits (boldness, activity) in female and male purple marsh crabs (Sesarma reticulatum) using a semi-field approach. Specifically, we measured boldness and activity on two consecutive days using the same behavioral assays during each time point. Consistency (personality) was determined using Kendall’s coefficient of concordance based on Spearman correlation coefficients for each behavior. The ...


Enclosures And Dichotomies: Coexistence Vs. Distance In The Poems Of John Clare, Jordan P. Finn May 2019

Enclosures And Dichotomies: Coexistence Vs. Distance In The Poems Of John Clare, Jordan P. Finn

School of Arts & Sciences Theses

John Clare’s poetry emphasizes an affinity with environment by suspending the distinction between the inside (subject) and the outside (object). Clare’s identification with objects and perception rather than subjects and aesthetics renders his work as a prescient and radical example of ecological poetry in the Romantic period. Raymond Williams’ “green language” and Timothy Morton’s ambient poetics both cite Clare as an ideal figure for their above theories and evoke Clare as a writer who positions the environment as governing thought rather than thought governing the environment. This thesis especially relates Clare to Morton’s Ecology without Nature ...


Phylogenetic Inference Of Multiscale Selection Pressures Using A Continuous State Birth-Death Process, Marco Hamins-Puertolas, David Rasmussen May 2019

Phylogenetic Inference Of Multiscale Selection Pressures Using A Continuous State Birth-Death Process, Marco Hamins-Puertolas, David Rasmussen

Biology and Medicine Through Mathematics Conference

No abstract provided.


Recovery Of Domestic Behaviors By A Parasitic Ant (Formica Subintegra) In The Absence Of Its Host (Formica Subsericea), Amber Nichole Hunter May 2019

Recovery Of Domestic Behaviors By A Parasitic Ant (Formica Subintegra) In The Absence Of Its Host (Formica Subsericea), Amber Nichole Hunter

MSU Graduate Theses

Dulosis is a type of social parasitism in which a parasitic ant has become dependent on captured workers (hosts) of a closely related species. Dulosis can be either facultative or obligate depending on the degree of dependence on host workers. As parasites become more specialized over evolutionary time, their domestic abilities degenerate until they become unable to survive without the host. However, the ‘lost’ behaviors may display some degree of recovery when host workers are unavailable to do the tasks. The Formica sanguinea group consists of 12 species of parasitic ants, which are all traditionally considered to be facultative parasites ...


Living On The Edge: Thermophysiology Of The Southern Flying Squirrel At Its Northern Range Margin, Vanessa R. Hensley May 2019

Living On The Edge: Thermophysiology Of The Southern Flying Squirrel At Its Northern Range Margin, Vanessa R. Hensley

Electronic Theses and Dissertations

Climate change has the potential to upset entire ecological systems, making predictive models of the utmost importance. The incorporation of physiological parameters into predictive models not only bolsters their accuracy but also provides a mechanistic explanation for ecological changes already observed and those yet to come. North American flying squirrels, for example, have already experienced dramatic range shifts northward over recent decades, with climate change being the suspected driver. While other studies have focused on warming winter temperatures, I explored the hypothesis that rising summer temperatures were driving the observed range shifts. Unable to find a reliable population of the ...


American White Pelicans, Tommy King May 2019

American White Pelicans, Tommy King

Wildlife Damage Management Technical Series

American white pelicans (Pelecanus erythrorhynchos, Figure 1) threaten aquaculture producers by direct predation and the spread of disease. They are also considered competition and a nuisance by some sports fishermen. Pelicans can also damage pond levees and crops, such as rice, by trampling the vegetation and depositing guano. A combination of wildlife damage management techniques is often necessary to reduce pelican damage to these resources. Aquaculture Prior to the winter of 1992, American white pelican depredations at catfish facilities in the Delta regions of Arkansas and Mississippi were limited, and birds were easily dispersed from the area. Since 1992, however ...


Invasion In The Nation: How Does Temperature During Dormancy Influence Germination Rates Of Humulus Japonicus, Anna Sapone, Briauna Bivens Apr 2019

Invasion In The Nation: How Does Temperature During Dormancy Influence Germination Rates Of Humulus Japonicus, Anna Sapone, Briauna Bivens

Carroll College Student Undergraduate Research Festival

Humulus japonicus is currently in the Eastern United States, but is rapidly migrating West and heading straight for Montana. The effects of climate change have already been seen in Montana, and more changes are expected to occur in the future. These shifts could produce a climate that would allow H. japonicus to thrive on our open lands. H. japonicus is an annual invasive species that can out compete native species in riparian and floodplain habitats, altering ecosystem function. Previous studies have shown that H. japonicus seeds need some kind of cold stratification in order to break seed dormancy. For our ...


Hawaiian Honeycreeper Explosion: Monophyletic Origins Of Nectivorous Honeycreeper Beak Morphologies, Carter Anderson Apr 2019

Hawaiian Honeycreeper Explosion: Monophyletic Origins Of Nectivorous Honeycreeper Beak Morphologies, Carter Anderson

Carroll College Student Undergraduate Research Festival

The goal of this study was to determine if the primary nectarivorous species of Hawai’ian Honeycreepers were a monophyletic group. A well supported phylogeny, generated using cytB of the mitochondrial genome, indicates a resolved clade of nectivore honeycreepers distinct from other lineages


Spatial And Temporal Distribution Of The Forensically Significant Blow Flies Of Los Angeles County, California, United States (Diptera: Calliphoridae), Royce T. Cumming Apr 2019

Spatial And Temporal Distribution Of The Forensically Significant Blow Flies Of Los Angeles County, California, United States (Diptera: Calliphoridae), Royce T. Cumming

Dissertations & Theses in Natural Resources

Forensic entomology although not a commonly used discipline in the forensic sciences, does have its niche and when used by investigators is respected in crinimolegal investigations (Greenberg and Kunich, 2005). With many species of forensically significant insects being regionally specific, it is often difficult for forensic entomologists to as confidently translate regionally specific studies across drastically differing geographic regions (Brundage, et al., 2011).

The purpose of this study is to help create a better temporal and geographic distributional understanding of the blow fly species present in Los Angeles County, California, United States. Twenty-five locations from four ecoregions (coastal mountains, urban ...