Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (4398)
- Utah State University (1584)
- WellBeing International (820)
- Old Dominion University (748)
- Marshall University (676)
-
- University of Arkansas, Fayetteville (632)
- University of Nevada, Las Vegas (501)
- Loyola Marymount University and Loyola Law School (476)
- Department of Primary Industries and Regional Development, Western Australia (388)
- City University of New York (CUNY) (325)
- Louisiana State University (236)
- University of South Florida (235)
- Eastern Illinois University (217)
- South Dakota State University (196)
- University of Kentucky (194)
- University of Montana (194)
- Claremont Colleges (186)
- The University of Southern Mississippi (186)
- Virginia Commonwealth University (180)
- Cal Poly Humboldt (175)
- Portland State University (168)
- University of Richmond (160)
- Western Kentucky University (156)
- Edith Cowan University (155)
- Illinois State University (155)
- Michigan Technological University (154)
- University of New Mexico (152)
- University of Louisville (148)
- California Polytechnic State University, San Luis Obispo (147)
- SIT Graduate Institute/SIT Study Abroad (132)
- Keyword
-
- Ecology (541)
- Climate change (373)
- Conservation (337)
- Evolution (325)
- Taxonomy (290)
-
- Biodiversity (269)
- Invasive species (266)
- Behavior (196)
- Western Australia (171)
- Distribution (154)
- Restoration (151)
- Fish (149)
- Biology (143)
- Habitat (141)
- Limnology (128)
- Predation (125)
- Grus americana (124)
- Phylogeny (123)
- Water quality (119)
- Morphology (118)
- Wetlands (117)
- Management (115)
- Aquatic ecology (112)
- Migration (111)
- Reproduction (109)
- Biogeography (108)
- Nebraska (108)
- Birds (104)
- Buthidae (102)
- Experiments (102)
- Publication Year
- Publication
-
- Insecta Mundi (686)
- United States Department of Agriculture Wildlife Services: Staff Publications (591)
- Animal Sentience (520)
- The Prairie Naturalist (490)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (451)
-
- Euscorpius (446)
- Journal of the Arkansas Academy of Science (403)
- Proceedings of the North American Crane Workshop (399)
- Electronic Theses and Dissertations (340)
- Aspen Bibliography (338)
- Biology Faculty Publications (326)
- Biological Sciences Theses & Dissertations (261)
- Human–Wildlife Interactions (257)
- Theses and Dissertations (234)
- Masters Theses (230)
- Biological Sciences Faculty Publications (228)
- Master's Theses (196)
- Theses, Dissertations and Capstones (194)
- Wildlife Damage Management Conference (180)
- Nebraska Bird Review (175)
- Fisheries Management Papers (167)
- Publications and Research (166)
- USF Tampa Graduate Theses and Dissertations (159)
- Cal Poly Humboldt theses and projects (139)
- Graduate Theses and Dissertations (135)
- Independent Study Project (ISP) Collection (125)
- United States Geological Survey, Northern Prairie Wildlife Research Center: Publications (122)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (120)
- Bulletin of the University of Nebraska State Museum (1924–2023) (115)
- Honors Theses (112)
- Publication Type
- File Type
Articles 2791 - 2820 of 19681
Full-Text Articles in Entire DC Network
A Survey Of Captive Wild And Exotic Animal Training Programs In The Eastern United States, Savannah Atchison
A Survey Of Captive Wild And Exotic Animal Training Programs In The Eastern United States, Savannah Atchison
Senior Honors Theses
Methods of positive reinforcement as a successful means for animal training are the result of many years of research into operant conditioning and learning. However, current literature is unclear on the extent to which these methods are utilized in captive wild and exotic animal populations in the United States. Through phone interviews with animal trainers employed at zoos and wildlife rehabilitation centers in the eastern United States, the author determined that these facilities are currently utilizing positive reinforcement training methods which are proving to be a great benefit for all parties involved. They are enabling a variety of voluntary health …
Alfred Russel Wallace Notes 25. Wallace And The 'Physical Environment'., Charles H. Smith
Alfred Russel Wallace Notes 25. Wallace And The 'Physical Environment'., Charles H. Smith
Faculty/Staff Personal Papers
Alfred Russel Wallace’s natural selection essay of 1858 has been held to frame a greater role for the physical environment in forcing selection regimes than we find in Darwin’s writings, but here that verdict is challenged by a re-examination of both the essay itself, and period usage of the term ‘physical.’
The Status Of Invasive Dusky Slug (Arion) Species In The Upper Great Lakes: A Molecular Approach, Olivia W. Hall
The Status Of Invasive Dusky Slug (Arion) Species In The Upper Great Lakes: A Molecular Approach, Olivia W. Hall
All NMU Master's Theses
I update the distribution of two cryptic slug species, Arion fuscus and Arion subfuscus, in the Upper Great Lakes of the United States using molecular identification methods. Arion fuscus has not previously been reported in the literature in this region, and Arion subfuscus has previously been reported as abundant. However, all previous distribution studies were determined using visual identification tools, which can result in misidentification between cryptic species. To molecularly re-examine these distribution maps, I used a mitochondrial ribosomal subunit 16S PCR amplification and subsequent SSpI and MfeI restriction enzyme digest to identify slug specimens. I collected slugs in …
Highly Pathogenic Avian Influenza A(H5n1) Virus Outbreak In New England Seals, United States, Wendy Puryear, Kaitlin Sawatzki, Nichola Hill, Alexa Foss, Jonathon J. Stone, Lynda Doughty, Dominique Walk, Katie Gilbert, Maureen Murray, Elena Cox, Priya Patel, Zak Mertz, Stephanie Ellis, Jennifer Taylor, Deborah Fauquier, Ainsley Smith, Robert A. Digiovanni, Adriana Van De Guchte, Ana Silvia Gonzalez-Reiche, Zain Khalil, Harm Van Bakel, Mia K. Torchetti, Kristina Lantz, Julianna B. Lenoch, Jonathan Runstadler
Highly Pathogenic Avian Influenza A(H5n1) Virus Outbreak In New England Seals, United States, Wendy Puryear, Kaitlin Sawatzki, Nichola Hill, Alexa Foss, Jonathon J. Stone, Lynda Doughty, Dominique Walk, Katie Gilbert, Maureen Murray, Elena Cox, Priya Patel, Zak Mertz, Stephanie Ellis, Jennifer Taylor, Deborah Fauquier, Ainsley Smith, Robert A. Digiovanni, Adriana Van De Guchte, Ana Silvia Gonzalez-Reiche, Zain Khalil, Harm Van Bakel, Mia K. Torchetti, Kristina Lantz, Julianna B. Lenoch, Jonathan Runstadler
United States Department of Agriculture Wildlife Services: Staff Publications
We report the spillover of highly pathogenic avian influenza A(H5N1) into marine mammals in the northeastern United States, coincident with H5N1 in sympatric wild birds. Our data indicate monitoring both wild coastal birds and marine mammals will be critical to determine pandemic potential of influenza A viruses.
Rhythms Of The Earth—Editorial Introduction, Karim-Aly S. Kassam, Morgan Ruelle, Christopher P. Dunn, Raj Pandya, Felice Wyndham
Rhythms Of The Earth—Editorial Introduction, Karim-Aly S. Kassam, Morgan Ruelle, Christopher P. Dunn, Raj Pandya, Felice Wyndham
Sustainability and Social Justice
This special issue of GeoHealth, entitled Rhythms of the Earth: Ecological Calendars and Anticipating the Anthropogenic Climate Crisis, is a transdisciplinary articulation of a methodology of hope to confront the multiple injustices of the Anthropocene. One of the greatest challenges of the climate crisis is the lack of predictability at the scale of communities where impacts are most immediate. Indigenous and rural societies face an ever shifting “new normal” through increasing inconsistency in the seasonality of temperature and precipitation, as well as greater frequency of extreme weather events. With global food systems dependent on local and small producers, climatic variability …
Using Podcasts To Bring National Estuarine Research Reserves Into The Classroom For Grades 6-12, Kaitlyn M. Dirr
Using Podcasts To Bring National Estuarine Research Reserves Into The Classroom For Grades 6-12, Kaitlyn M. Dirr
Senior Theses
In a typical classroom setting, there are significant challenges to exposing students to concepts related to earth sciences and the environment. These challenges are exacerbated when conveying lessons about geographic areas with limited access, such as oceans and coastlines (Louv, 2010). It is now more important than ever for environmental education to improve and adapt to our changing world. Educators may have the opportunity to bring these subjects to life by using media content such as podcasts to introduce students to new places and the scientists, managers and educators that work in those spaces. In the United States, there exists …
Effects Of Habitat Management On Rodent Diversity, Abundance, And Virus Infection Dynamics, Nathaniel Mull, Amy Schexnayder, Abigail Stolt, Tarja Sironen, Kristian M. Forbes
Effects Of Habitat Management On Rodent Diversity, Abundance, And Virus Infection Dynamics, Nathaniel Mull, Amy Schexnayder, Abigail Stolt, Tarja Sironen, Kristian M. Forbes
Biological Sciences Faculty Publications and Presentations
As anthropogenic factors continue to degrade natural areas, habitat management is needed to restore and maintain biodiversity. However, the impacts of different habitat management regimes on ecosystems have largely focused on vegetation analyses, with limited evaluation of downstream effects on wildlife. We compared the effects of grassland management regimes (prescribed burning, cutting/haying, or no active management) on rodent communities and the viruses they hosted. Rodents were trapped in 13 existing grassland sites in Northwest Arkansas, USA during 2020 and 2021. Rodent blood samples were screened for antibodies against three common rodent-borne virus groups: orthohantaviruses, arenaviruses, and orthopoxviruses. We captured 616 …
Ecological Studies Of Wolves On Isle Royale, Sarah Hoy, Rolf O. Peterson, John A. Vucetich
Ecological Studies Of Wolves On Isle Royale, Sarah Hoy, Rolf O. Peterson, John A. Vucetich
Ecological Studies of Wolves on Isle Royale
Annual Report 2022-2023
Discovering Dune: Essays On Frank Herbert’S Epic Saga., Edited By Dominic J. Nardi And N. Trevor Brierly, G. Connor Salter
Discovering Dune: Essays On Frank Herbert’S Epic Saga., Edited By Dominic J. Nardi And N. Trevor Brierly, G. Connor Salter
Mythlore: A Journal of J.R.R. Tolkien, C.S. Lewis, Charles Williams, and Mythopoeic Literature
G. Connor Salter reviews Discovering Dune: Essays on Frank Herbert’s Epic Saga, edited by Dominic J. Nardi and N. Trevor Brierly, considering its new contributions to studies of Frank Herbert's work. Essays included fit into four categories (Politics and Power, History and Religion, Biology and Ecology, and Philosophy, Choice and Ethics) and range from Herbert's use of ecology in Dune to how game theory may help explain certain characters' apparent ability to see the future. Discovering Dune also includes an appendix which contains the only up-to-date bibliography of Herbert's work (primary and secondary sources).
Internal Electric Field In Carbon Nitride-Based Heterojunctions For Photocatalysis, Aixin Deng, Yue Sun, Zhanqi Gao, Shaogui Yang, Yazi Liu, Huan He, Jinqiang Zhang, Shaomin Liu, Hongqi Sun, Shaobin Wang
Internal Electric Field In Carbon Nitride-Based Heterojunctions For Photocatalysis, Aixin Deng, Yue Sun, Zhanqi Gao, Shaogui Yang, Yazi Liu, Huan He, Jinqiang Zhang, Shaomin Liu, Hongqi Sun, Shaobin Wang
Research outputs 2022 to 2026
Carbon nitride is one of the most promising metal-free photocatalysts to harvest solar light for energy conversion and pollutant treatment. Unfortunately, its photocatalytic performance is impeded by the sluggish charge carriers due to the high symmetry of unit cells of chemical structure. Fabrication of an internal electric field (IEF) in carbon nitride-based photocatalysts is evidenced to be a productive strategy to actuate the fast separation of photo-excited charge carriers and navigate their migrations to active sites for high apparent quantum efficiency (AQE) and throughputs. In the current work, a comprehensive review of IEF in different types of carbon nitride-based heterojunctions …
Pathogen Risk Assessment On Arabian Felines In The United Arab Emirates, Laia Montserrat Stefano
Pathogen Risk Assessment On Arabian Felines In The United Arab Emirates, Laia Montserrat Stefano
Dissertations
The Arabian Peninsula has been known to harbour five species of felines, namely leopards (Panthera pardus), cheetahs (Acinonyx jubatus), caracals (Caracal caracal), sand cats (Felis margarita), and wildcats (Felis silvestris). Currently, their situation in the wild is critical in the region and ex situ breeding efforts are the greatest hope to restore their populations. However, these efforts need to go hand-in-hand with focus on their health, since pathogens are known to be a serious threat to animals under managed care. Globally, the potential pathogens of these five species include viruses, …
Land Cover Change As A Proxy Of Changes In Wildlife Distribution And Abundance In Tarangire-Simanjiro-Lolkisale-Mto Wa Mbu Ecosystem, Thobias Anthony, Nyimvua Shaban, Cuthbert Nahonyo
Land Cover Change As A Proxy Of Changes In Wildlife Distribution And Abundance In Tarangire-Simanjiro-Lolkisale-Mto Wa Mbu Ecosystem, Thobias Anthony, Nyimvua Shaban, Cuthbert Nahonyo
Tanzania Journal of Science
This study analyzed the land use and land cover (LULC) changes from 2000 to 2020 and examined its influence on wildlife distribution and abundance. LULC from satellite imagery for 2000, 2012 and 2020 were acquired from the United States Geological Survey (USGS). Supervised classification along with a maximum likelihood algorithm was used to classify satellite imagery into eight LULC classes: bareland, woodland, wetland, shrubland, grassland, waterbodies, cropland and built-up land. The results showed that grassland, wetland and woodland had declined, while shrubland, cropland and built-up land increased from 2000 to 2020. Grassland, wetland and woodland decreased from 48.1%, 14.1% and …
Collection Of Ground Beetles (Coleoptera: Carabidae) In Two Types Of Arboreal Terrain In The Natural Park Of Belezma Batna (North-Eastern Algeria), Yougherta Abderrezak Habbari, Naama Frah, Meriem Bouterfa, Larbi Houichi
Collection Of Ground Beetles (Coleoptera: Carabidae) In Two Types Of Arboreal Terrain In The Natural Park Of Belezma Batna (North-Eastern Algeria), Yougherta Abderrezak Habbari, Naama Frah, Meriem Bouterfa, Larbi Houichi
Journal of Bioresource Management
The inventory of the carabid family at two forest sites in the Belezma national park namely an oak grove site and a cedar site during a period ranging from May 2017 to April 2018, has shown the counting of 27 taxa that have been inventoried by Barber pitfall traps. The results showed that the Quercus ilex site has slightly more species (25 species) compared to the Cedrus atlantica one (23 species). However, the Harpalinae subfamily is quantitatively the better one represented at both sites. The Shannon and Simpson indices report slightly higher figures in the Cedrus atlantica site with respectively …
Comparison Of Biodiversity And Abundance Of Earthworms In Maize Croplands, Irrigated With Sewage And Canal Water Of District Faisalabad, Pakistan, Sana Aziz, Nazia Ehsan, Fariha Latif, Muhammad Sarfraz Ali, Sajid Abdullah
Comparison Of Biodiversity And Abundance Of Earthworms In Maize Croplands, Irrigated With Sewage And Canal Water Of District Faisalabad, Pakistan, Sana Aziz, Nazia Ehsan, Fariha Latif, Muhammad Sarfraz Ali, Sajid Abdullah
Journal of Bioresource Management
The diversity and richness of earthworms that were irrigated with canal (Chak 200 RB Lathianwala) and sewage (Chokera) water in the district of Faisalabad were determined from August to November, 2020. For collection of specimens, hand picking and digging method was used and then preserved in formalin. AAS (Atomic absorption spectrophotometer) was used to check the concentration of heavy metals in both water and soil samples. Total 10 species were identified from Chak 200 RB Lathianwala and showed Shannon-Weiner Diversity Index (H') =2.13, Evenness = 0.93 and Dominance = 0.07. The significant difference in abundance were determined (t = 7.7115, …
Less Fuel For The Next Fire? Short-Interval Fire Delays Forest Recovery And Interacting Drivers Amplify Effects, Kristin H. Braziunas, Nathan G. Kiel, Monica G. Turner
Less Fuel For The Next Fire? Short-Interval Fire Delays Forest Recovery And Interacting Drivers Amplify Effects, Kristin H. Braziunas, Nathan G. Kiel, Monica G. Turner
Aspen Bibliography
As 21st-century climate and disturbance dynamics depart from historic baselines, ecosystem resilience is uncertain. Multiple drivers are changing simultaneously, and interactions among drivers could amplify ecosystem vulnerability to change. Subalpine forests in Greater Yellowstone (Northern Rocky Mountains, USA) were historically resilient to infrequent (100–300 year), severe fire. We sampled paired short-interval (<30-year) and long-interval (>125-year) post-fire plots most recently burned between 1988 and 2018 to address two questions: (1) How do short-interval fire, climate, topography, and distance to unburned live forest edge interact to affect post-fire forest regeneration? (2) How do forest biomass and fuels vary following short-interval versus long-interval severe fires? …30-year)>
An Annotated Checklist Of The Dung Beetles (Coleoptera: Geotrupidae And Scarabaeidae, Subfamilies Aphodiinae And Scarabaeinae) Of Oaxaca, Mexico, Burt Kohlmann, Alfonsina Arriaga-Jiménez, Eder F. Mora-Aguilar
An Annotated Checklist Of The Dung Beetles (Coleoptera: Geotrupidae And Scarabaeidae, Subfamilies Aphodiinae And Scarabaeinae) Of Oaxaca, Mexico, Burt Kohlmann, Alfonsina Arriaga-Jiménez, Eder F. Mora-Aguilar
Insecta Mundi
Abstract. A checklist of the dung beetles (Coleoptera: Geotrupidae; Scarabaeidae: Aphodiinae and Scarabaeinae) of Oaxaca, Mexico, is presented for the first time. The checklist contains 252 taxa, 15 Geotrupidae, 77 Aphodiinae, and 160 Scarabaeinae. The state includes 58 genera and 15 tribes, where Onthophagus is the most species-rich genus with 49 taxa, followed by Ataenius with 22, Canthon with 17 and Phanaeus with 15 taxa. Valid names, as well as synonyms, are provided. First records, notes on presently recognized species, nomenclatural problems, and biodiversity comparisons are included. Phanaeus dionysius Kohlmann, Arriaga-Jiménez and Rös, 2018 (Coleoptera: Scarabaeidae: Scarabaeinae) is re-established as …
Taxonomic Placement And Nomenclatural Revisions For Five Species Of Neotropical Buprestidae (Coleoptera), Norman E. Woodley
Taxonomic Placement And Nomenclatural Revisions For Five Species Of Neotropical Buprestidae (Coleoptera), Norman E. Woodley
Insecta Mundi
Autarcontes lopezi Fisher, 1925 (Coleoptera: Buprestidae), is transferred to the genus Agrilus Curtis, 1825 (new combination). Colobogaster bella Kirsch, 1873, is transferred to the genus Chrysobothris Eschscholtz, 1829 (new combination). Ectinogonia isamarae Moore, 1994, is resurrected as the valid name for the species previously called E. obscuripennis Cobos, 1954, as the latter is unavailable as infrasubspecific. Conognatha jakobsoni Obenberger, 1928, is resurrected over C. germaini Théry in Hoscheck, 1934, as the former name has priority. Callimicra lucida Waterhouse, 1889, is resurrected as the valid name over C. hoscheki Obenberger, 1922, which has been used due to …
Nesting Behavior Of The Spider Wasp Calopompilus Pyrrhomelas (Walker) (Hymenoptera: Pompilidae), Frank E. Kurczewski, Marshal Hedin, Rick C. West
Nesting Behavior Of The Spider Wasp Calopompilus Pyrrhomelas (Walker) (Hymenoptera: Pompilidae), Frank E. Kurczewski, Marshal Hedin, Rick C. West
Insecta Mundi
The nesting behavior of the spider wasp Calopompilus pyrrhomelas (Hymenoptera: Pompilidae: Pepsini) is described for the first time based on independent observations and photographic series from Oakland, Alameda County, CA; Denio, Humboldt County, NV; and Tamalpais-Homestead Valley, Marin County, CA, respectively. The three wasps captured, immobilized, and provisioned the spider’s own burrows with Calisoga longitarsis (Simon) (Nemesiidae) and Antrodiaetus montanus (Chamberlin and Ivie) (Antrodiaetidae).
The genus Calopompilus Ashmead is one of the “most primitive” genera in the family Pompilidae as evidenced by its broad hind wings and anal lobe, lack of specialization in wing venation, stout “scolioid” body structure, and …
Stictoleptura Cordigera (Füssli, 1775) (Cerambycidae: Lepturinae: Lepturini), A New Alien Longhorn Beetle Introduced In Chile, José Mondaca, Guido Rebolledo, Francesco Vitali
Stictoleptura Cordigera (Füssli, 1775) (Cerambycidae: Lepturinae: Lepturini), A New Alien Longhorn Beetle Introduced In Chile, José Mondaca, Guido Rebolledo, Francesco Vitali
Insecta Mundi
The Palaearctic longhorn beetle Stictoleptura cordigera (Füssli, 1775) (Cerambycidae: Lepturinae: Lepturini) is recorded for the first time in Chile, based on specimens collected in a rural locality of the Maule Region. This new record is the first in the New World and increases to eleven the number of exotic cerambycids introduced and established in the Chilean territory. A brief diagnosis for recognition of the species and data about its distribution and natural history are provided. The possible route of entry of this cerambycid into Chile is discussed.
Stictoleptura cordigera (Füssli, 1775) is a polyphagous, saproxylic, anthophilous cerambycid widely distributed in …
Ciclo De Vida Hamadryas Chloe Chloe (Stoll 1787) (Lepidoptera: Nymphalidae: Biblidinae) En Mocoa, Putumayo, Colombia, Estefany M. Figueroa, Ximena A. León, Fredy Montero Abril
Ciclo De Vida Hamadryas Chloe Chloe (Stoll 1787) (Lepidoptera: Nymphalidae: Biblidinae) En Mocoa, Putumayo, Colombia, Estefany M. Figueroa, Ximena A. León, Fredy Montero Abril
Insecta Mundi
Resumen. Se describe el Ciclo de Vida de Hamadryas chloe chloe (Stoll, 1787) (Lepidoptera: Nymphalidae: Biblidinae). Se desarrolla en sus etapas inmaduras usando como planta hospedante a Dalechampia scandens Linnaeus 1753 (Euphorbiaceae). El tiempo para la determinación del ciclo en condiciones de laboratorio desde la postura de los huevos hasta la emergencia de los adultos fue de 30–32 días en promedio. Se encontró asociado a los huevos de la especie un parasitoide de la familia Encyrtidae. La especie mantiene características morfológicas similares al género como setas prominentes en la cabeza y cuerpo de las larvas, especialmente en instares superiores. Se …
Regeneration Strategies And Forest Resilience To Changing Fire Regimes: Insights From A Goldilocks Model, Tanjona Ramiadantsoa, Zak Ratajczak, Monica G. Turner
Regeneration Strategies And Forest Resilience To Changing Fire Regimes: Insights From A Goldilocks Model, Tanjona Ramiadantsoa, Zak Ratajczak, Monica G. Turner
Aspen Bibliography
Disturbances are ubiquitous in ecological systems, and species have evolved a range of strategies to resist or rebound following disturbance. Understanding how the presence and complementarity of regeneration traits will affect community responses to disturbance is increasingly urgent as disturbance regimes shift beyond their historical ranges of variability. We define "disturbance niche" as a species' fitness across a range of disturbance sizes and frequencies that can reflect the fundamental or realized niche, that is, whether the species occurs alone or with other species. We developed a model of intermediate complexity (i.e., a Goldilocks model) to infer the disturbance niche. We …
Heterospecific Anural Eavesdropping Cues, Lucia C. Maldonado, Hayley Lunn, Max Sprute, Andrew Wang, Ripley Conklin, Nolan Gentile, Conor Kramer, Lee Kats
Heterospecific Anural Eavesdropping Cues, Lucia C. Maldonado, Hayley Lunn, Max Sprute, Andrew Wang, Ripley Conklin, Nolan Gentile, Conor Kramer, Lee Kats
Seaver College Research And Scholarly Achievement Symposium
The ability to communicate within species is a trait utilized by every organism. Using cues conspecifically creates a better chance of survival for other members of the species and increases fitness overall. However, using cues heterospecifically also poses a great advantage as animals can eavesdrop on cues released by another species. Previous studies have recorded that eavesdropping is beneficial to prey species, such as squirrels reacting to bird calls and tadpoles reacting to visual and chemical cues to avoid predation. We asked how one local and one exotic species of frog would respond to cues emitted by another local species …
Revisiting Trophic Cascades And Aspen Recovery In Northern Yellowstone, Robert L. Beschta, Luke E. Painter, William J. Ripple
Revisiting Trophic Cascades And Aspen Recovery In Northern Yellowstone, Robert L. Beschta, Luke E. Painter, William J. Ripple
Aspen Bibliography
We revisit the nature and extent of trophic cascades and quaking aspen (Populus tremuloides) recovery in the northern range of Yellowstone National Park (YNP), where studies have reported on Rocky Mountain elk (Cervus canadensis) browsing and young aspen heights following the St. John, 1995-96 reintroduction of gray wolves (Canis lupus). A recent study by Brice et al. (2021) expressed concerns about methodologies employed in earlier aspen studies and that results from those studies exaggerated the extent to which a trophic cascade has benefitted aspen, concerns such as: (a) the selection of aspen stands, (b) …
Movement, Behavior, And Trophic Ecology Of A Pelagic Predator Guild In The Eastern Tropical Pacific Ocean, Ryan Keith Logan
Movement, Behavior, And Trophic Ecology Of A Pelagic Predator Guild In The Eastern Tropical Pacific Ocean, Ryan Keith Logan
All HCAS Student Capstones, Theses, and Dissertations
Pelagic apex predators exert strong influences on ecological communities, and often support valuable commercial or recreational fisheries worldwide. Yet, due to their rarity and pelagic lifestyle, many species, such as billfishes, have proven particularly difficult to study at resolutions necessary to define dynamics of recovery from fishery interaction, physical interaction with environmental features and prey exploitation, and competitive interactions among other billfish predators. This leads to a paucity of knowledge on billfish ecology and habitat use, and hinders management efforts. With the ever-improving and miniaturization of technology and oceanographic datasets, the ability to define and quantify these interactions of fish …
Morphological Differences Align With Habitat Partitioning Among Three Species Of Percina (Percidae: Actinopterygii) In The Roanoke River, Virginia, Michael M. Calvert, Steven L. Powers
Morphological Differences Align With Habitat Partitioning Among Three Species Of Percina (Percidae: Actinopterygii) In The Roanoke River, Virginia, Michael M. Calvert, Steven L. Powers
Southeastern Fishes Council Proceedings
The upper Roanoke River has three species of Percina (P. nevisense, Chainback Darter; P. roanoka, Roanoke Darter; and P. rex, Roanoke Logperch). Resource partitioning appears to be a key component of maintaining diverse fish assemblages with habitat and food partitioning cited as especially important in communities containing members of the same family. Some aspects of the diets of these species have been documented in the literature with only modest differences among them. Microhabitat data for adults of these species have also been published revealing differences in habitat occupied by each with P. roanoka living in the fastest, shallowest …
Ecohydrology, Cultural Perceptions, And Recovery Of Freshwater Wetlands In A Heavily Managed Urban Aquifer, Jessica Ashley Balerna
Ecohydrology, Cultural Perceptions, And Recovery Of Freshwater Wetlands In A Heavily Managed Urban Aquifer, Jessica Ashley Balerna
USF Tampa Graduate Theses and Dissertations
Freshwater wetlands provide essential ecosystem services that influence, and are influenced by, human perceptions and behaviors. I explore these feedbacks in the Tampa Bay region, which hosts numerous freshwater wetlands subjected to population increases, economic growth, and shifting management policies. These wetlands are embedded in urban and residential areas, where people can observe and respond to changes in wetland condition over time. I utilized long-term (1991–2018), high sample size (n=152) datasets to assess how wetland inundation responds to the interactive effects of climate variation and shifts in water conservation policies primarily related to cutbacks in groundwater extraction. As wetland ecosystem …
Powerpoint - Post-Planting Biodiversity Inventory, Center For Urban Resilience
Powerpoint - Post-Planting Biodiversity Inventory, Center For Urban Resilience
Module 10: Garden Ecology
No abstract provided.
Lesson Plan - Post-Planting Biodiversity Inventory, Center For Urban Resilience
Lesson Plan - Post-Planting Biodiversity Inventory, Center For Urban Resilience
Module 10: Garden Ecology
The purpose of this lesson is to conduct post-planting biodiversity inventories
Powerpoint - Attracting Pollinators, Center For Urban Resilience
Powerpoint - Attracting Pollinators, Center For Urban Resilience
Module 10: Garden Ecology
No abstract provided.
A Multiscale Linkage Between Riverscape And Fish Community Coevolution, Loren W. Stearman
A Multiscale Linkage Between Riverscape And Fish Community Coevolution, Loren W. Stearman
Dissertations
Sediment dynamics are foundational to stream and watershed morphology. Yet aquatic ecologists have relied on an oversimplified model of sediment dynamics characterizing sediments as agents of stream bed burial, and which fails to describe many types of aquatic habitat evolution. In this dissertation I employ both fluvial geomorphic and ecological frameworks to gain a deeper understanding of how sediment dynamics shape stream morphology and fish community evolution at multiple scales. Using a paired historic and contemporary approach, I analyzed geomorphic evolution and fish community change in the Bayou Pierre, Mississippi, from the 1980s to recent. Patterns of erosion due to …