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Articles 631 - 660 of 10518
Full-Text Articles in Entire DC Network
Comparative Morphology And Ultrastructure Of Olfactory Epithelia In Plethodontid Salamanders: Effect Of Life History Variation, Emily Gremling
Comparative Morphology And Ultrastructure Of Olfactory Epithelia In Plethodontid Salamanders: Effect Of Life History Variation, Emily Gremling
Cal Poly Humboldt theses and projects
Many amphibian species rely on olfaction for locating prey and for social interactions during different life stages. Despite the importance of the olfactory system, research on its structure has been taxonomically limited. The most diverse family of salamanders, the Plethodontidae, has been largely excluded from research efforts to describe olfactory morphology. Although several histological studies have been conducted, no studies have yet looked at morphology at the level of ultrastructure using electron microscopy. The primary goal of my research was to examine olfactory morphology and ultrastructure in plethodontid species with a range of life history strategies, to better understand the …
Comparative Study On Reproductive Behavior Of Three Thai Indigenous Apple Snails Pila Celebensis (Quoy & Gaimard, 1834), P. Pesmei (Morlet, 1889) และ P. Virescens (Deshayes, 1824), Supunya Annate
Chulalongkorn University Theses and Dissertations (Chula ETD)
Species of the Thai indigenous apple snail genus Pila Röding, 1798 are undergoing population decline. Accordingly, their conservation is needed, but the lack of knowledge of their reproductive biology is a significant obstacle to implementing conservation measures. Therefore, this study analyzed the mating and egg-laying behavior of three of the five Thai indigenous apple snails: P. celebensis, P. pesmei, and P. virescens using continuous video recording under laboratory conditions. In addition, the egg-laying behavior of P. virescens in a seminatural habitat was observed in the rainy season of 2023. Moreover, their egg, egg mass, incubation time, and hatchling characteristics were …
Comparing Alternative Developmental Modes: Structure And Gene Expression In The Olfactory System Of Plethodontid Salamanders, Giuseppina S. Lanzilli
Comparing Alternative Developmental Modes: Structure And Gene Expression In The Olfactory System Of Plethodontid Salamanders, Giuseppina S. Lanzilli
Cal Poly Humboldt theses and projects
The olfactory system of extant amphibians changes as the animal transitions from a fully aquatic to a terrestrial lifestyle at metamorphosis. Cellular morphology of the nose and expression patterns of olfactory genes in the nasal cavity have been examined for a variety of frogs and salamanders, but among plethodontid salamanders, molecular data are available only for Plethodon shermani. Using standard histology and micro-CT reconstruction, I investigated the structure of the olfactory organs of larvae, juveniles, and adults of six plethodontid species, with terrestrial, streamside, semiaquatic, and aquatic adults. The overall structure of the olfactory cavity was generally similar across …
How Does A Global Climate Cycle Affect The Reproductive Output Of A Neotropical Migratory Bird?, Abby K. Bressette, Emma Cummings, Daniel Albrecht-Mallinger, Lesley Bulluck
How Does A Global Climate Cycle Affect The Reproductive Output Of A Neotropical Migratory Bird?, Abby K. Bressette, Emma Cummings, Daniel Albrecht-Mallinger, Lesley Bulluck
UROP Posters
El-Niño Southern Oscillation (ENSO) causes regional changes in climate and has been found to have varying effects on the survival, fecundity, and recruitment of migratory songbirds. This study seeks to better understand the effect of ENSO on the fecundity of Virginia-breeding Prothonotary warbler (Protonotaria citrea; PROW), a neotropical migratory songbird. PROW breed in the Eastern United States and spend the non-breeding season primarily in Panama and Colombia. Ongoing research in Virginia has found a positive relationship between spring precipitation and predicted number of PROW fledgelings during La Niña, but the opposite during El Niño. To better understand this relationship, we …
Investigating Birds As Dispersal Vectors Of Litylenchus Crenatae Subsp. Mccannii (Anguinidae), The Nematode Associated With Beech Leaf Disease, Spencer Rock Parkinson
Investigating Birds As Dispersal Vectors Of Litylenchus Crenatae Subsp. Mccannii (Anguinidae), The Nematode Associated With Beech Leaf Disease, Spencer Rock Parkinson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Beech leaf disease (BLD) is an emerging forest pathogen primarily affecting American beech (Fagus grandifolia, Ehrh.) in North America and has been attributed to tree mortality of sapling sized trees within five to seven years of infection. Symptoms typically occur in regenerating American beech thickets sprouting from roots of trees killed by beech bark disease. Scientists first observed BLD in Ohio in 2012 and currently has spread to 15 states in the USA and one Canadian province. The nematode Litylenchus crenatae subsp. mccannii (Lcm) is highly associated with BLD symptoms, interveinal chlorosis and defoliation of leaves, and is currently …
Density And Abundance Estimation Of West Indian Manatee, Trichechus Manatus, Between The States Of Ceará And Piauí, Northeast Brazil, Using Active Acoustics, Katherine Fiedler Choi Lima, Denis Moledo De Sousa Abessa, Daniel Gonzalez-Socoloske, Renata Sousa-Lima, Ana Carolina Oliveira De Meirelles, Cristine Pereira Negrão Silva
Density And Abundance Estimation Of West Indian Manatee, Trichechus Manatus, Between The States Of Ceará And Piauí, Northeast Brazil, Using Active Acoustics, Katherine Fiedler Choi Lima, Denis Moledo De Sousa Abessa, Daniel Gonzalez-Socoloske, Renata Sousa-Lima, Ana Carolina Oliveira De Meirelles, Cristine Pereira Negrão Silva
Faculty Publications
The West Indian manatee is one of the most threatened species in Brazil. The species has currently a patchy distribution from the state of Alagoas to the state of Amapá. The difficulty of observing manatees, especially in estuarine waters, is a challenge for conservation. Therefore, it is necessary to use new methodologies and technologies to solve manatee detection problems in their natural habitats. The goal of this study was to use an active acoustic method of detection to estimate manatee density and abundance in the estuarine complex of the Timonha and Ubatuba rivers, between the states of Ceará and Piauí, …
What's In A Name? Standardization Of Vernacular Names For Trichechus Manatus, A. A. Mignucci-Giannoni, Daniel Gonzalez-Socoloske, Anmari Alvarez-Alemán, Jamie Aquino, D. Caicedo-Herrera, Delma Nataly Castelblanco-Martínez, Diane Claridge, M. Fabiola Corona-Figueroa, Adolphe O. Debrot, Benoit De Thoisy, Carlos Espinoza-Marin, J. Galves, Eddy Garcia-Alfonso, Hector M. Guzman, Jalaludin Ahmad Khan, Jeremy J. Kiszka, Fabia De Oliveira Luna, Miriam Marmontel, Leon David Olivera-Gomez, Christine O'Sullivan, James A. Powell, Enrique Pugibet-Bobea, Indranee Roopsind, Carlos J. Silva
What's In A Name? Standardization Of Vernacular Names For Trichechus Manatus, A. A. Mignucci-Giannoni, Daniel Gonzalez-Socoloske, Anmari Alvarez-Alemán, Jamie Aquino, D. Caicedo-Herrera, Delma Nataly Castelblanco-Martínez, Diane Claridge, M. Fabiola Corona-Figueroa, Adolphe O. Debrot, Benoit De Thoisy, Carlos Espinoza-Marin, J. Galves, Eddy Garcia-Alfonso, Hector M. Guzman, Jalaludin Ahmad Khan, Jeremy J. Kiszka, Fabia De Oliveira Luna, Miriam Marmontel, Leon David Olivera-Gomez, Christine O'Sullivan, James A. Powell, Enrique Pugibet-Bobea, Indranee Roopsind, Carlos J. Silva
Faculty Publications
Trichechus manatus is one of 3 recognized extant species of manatees of the mammalian Order Sirenia. Currently, it is known by various vernacular names, none of which are descriptive of its biology and known distribution. This lack of standardization has led to confusion and miscommunication, hindering conservation efforts for this species. We propose standardizing the vernacular names used to refer to the species and its 2 subspecies based on appropriate geographical characterization in English, Spanish, French, Dutch, and Portuguese, respectively: “American Manatee”, “Manatí de las Américas”, “Lamantin d’Amérique”, “Amerikaanse Lamantijn”, and “Peixe-boi das Américas” for T. manatus; “Florida Manatee”, “Manatí …
Review On Locusta Migratoria Cinerascens (Fabricius, 1781)., Laib Djamel Eddine, Benzehra Abdelmadjid, Laib Imen, Aouzal Badis, Salah Akkal
Review On Locusta Migratoria Cinerascens (Fabricius, 1781)., Laib Djamel Eddine, Benzehra Abdelmadjid, Laib Imen, Aouzal Badis, Salah Akkal
Journal of Bioresource Management
The migratory locust, scientifically known as Locusta migratoria (Linnaeus, 1758), is a captivating insect species that has drawn the interest of scientists, farmers, and the general public. Recognized for its notorious swarming behavior, this insect has the potential to cause extensive damage to crops, leading to agricultural plagues and food shortages. However, beyond its reputation as a pest, the migratory locust is a subject of scientific fascination due to its intricate life cycle, remarkable ability to undergo rapid and dramatic transformations, and its crucial role within the ecosystems it inhabits. This review delves into various facets of L. migratoria, including …
Establishment Of Hand Rearing Protocols With Respect To Feeding, Physiological And Behavioral Aspects In Abandoned Lion Cubs At Safari Zoo Lahore, Muhammad Azhar, Bushra Nisar Khan, Fahd Haseeb, Muhammad Hassan Saleem, Abdul Rehman, Zahid Iqbal Khan, Muhammad Rizwan Khan
Establishment Of Hand Rearing Protocols With Respect To Feeding, Physiological And Behavioral Aspects In Abandoned Lion Cubs At Safari Zoo Lahore, Muhammad Azhar, Bushra Nisar Khan, Fahd Haseeb, Muhammad Hassan Saleem, Abdul Rehman, Zahid Iqbal Khan, Muhammad Rizwan Khan
Journal of Bioresource Management
African lion (Panthera leo) being most attractive but vulnerable exhibit of zoos and safaris; need particular attention to breeding plans. At captive sites, lioness neglects newborns commonly; at that stage, hand rearing is preferred. This study will highlight the best practices for hand-rearing lion cubs, including knowledge of early medical issues along with their treatment during the first 4 months of growth. 34 lions (08Male: 17Females: 9Cubs) were housed on 15 acres during 2019-21 at Safari Zoo Lahore. A total of 04 lionesses were found entirely abandoned to 05 newborns (03 males & 02 females). The hand-rearing period …
The Role Of Cooperatives And Farmer-Industry Linkages In The Evolution Of Tanga’S Dairy Innovation System, Hezron Makundi, Heric Thomas
The Role Of Cooperatives And Farmer-Industry Linkages In The Evolution Of Tanga’S Dairy Innovation System, Hezron Makundi, Heric Thomas
Journal of Humanities and Social Sciences
This study investigated the development of Tanga’s dairy innovation system and its role in promoting and maintaining relationships between farmers, the industry, and cooperative unions; employing a case study approach. The main objective was to assess the role of cooperatives in forging farmer-industry linkages and in improving dairy industry innovations. 100 dairy producers in Tanga participated in the survey that led to the paper. A questionnaire was used to collect data from randomly selected farmers. Furthermore, 20 key informant interviews were conducted with various participants, including the Tanga Dairy Cooperative Union livestock extension service providers. Also, one Focus Group Discussion …
Utilizing An Extract From Endophytic Fungus, Alternaria Alternata, Isolated From Ricinus Communis L. Leaves As A Biological Agent For Controlling The Migratory Locust In Algeria, Laib Djamel Eddine, Benzehra Abdelmadjid, Laib Imen, Aouzal Badis, Akkal Salah
Utilizing An Extract From Endophytic Fungus, Alternaria Alternata, Isolated From Ricinus Communis L. Leaves As A Biological Agent For Controlling The Migratory Locust In Algeria, Laib Djamel Eddine, Benzehra Abdelmadjid, Laib Imen, Aouzal Badis, Akkal Salah
Journal of Bioresource Management
In this research, we aimed to explore the insecticidal potential of Alternaria alternata, an endophytic fungus derived from the leaves of castor oil plant. To test its insecticidal efficacy, various doses of A. alternata mycoextract were administered to Locusta migratoria L. through both topical and oral pathways. The findings revealed that the insects displayed the highest susceptibility to a concentration of 2 g/L, leading to an impressive mortality rate of 87.5 % and 93.75 % for topical and oral administrations, in the same order. The extract displayed remarkable insecticidal properties, demonstrating LC50 values of 1.09 g/L for the topical …
Oregon State Rank Assessment For Pit Roach (Hesperoleucus Mitrulus), Misty Nelson
Oregon State Rank Assessment For Pit Roach (Hesperoleucus Mitrulus), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for pit roach (Hesperoleucus mitrulus) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Margined Sculpin (Cottus Marginatus), Misty Nelson
Oregon State Rank Assessment For Margined Sculpin (Cottus Marginatus), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for margined sculpin (Cottus marginatus) using NatureServe methodology, 2023.
Tropicalization Fact Sheet, Linda Walters, Carla Perscky
Tropicalization Fact Sheet, Linda Walters, Carla Perscky
CEELAB Outreach Materials
The goal of this 2-sided fact sheet is to introduce the topic of tropicalization along our coastlines to young audiences and their families. Tropicalization is defined as, "the transformation of ecosystems by tropical organisms that migrate towards the poles in response to warming minimum winter temperatures."
Oregon State Rank Assessment For Oregon Lakes Tui Chub (Siphateles Bicolor Oregonensis), Misty Nelson
Oregon State Rank Assessment For Oregon Lakes Tui Chub (Siphateles Bicolor Oregonensis), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Oregon Lakes tui chub (Siphateles bicolor oregonensis) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Malheur Mottled Sculpin (Cottus Bendirei), Misty Nelson
Oregon State Rank Assessment For Malheur Mottled Sculpin (Cottus Bendirei), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Malheur mottled sculpin (Cottus bendirei) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Klamath Lake Sculpin (Cottus Princeps), Misty Nelson
Oregon State Rank Assessment For Klamath Lake Sculpin (Cottus Princeps), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Klamath Lake sculpin (Cottus princeps) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Shorthead Sculpin (Cottus Confusus), Misty Nelson
Oregon State Rank Assessment For Shorthead Sculpin (Cottus Confusus), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Shorthead sculpin (Cottus confusus) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Torrent Sculpin (Cottus Rhotheus), Misty Nelson
Oregon State Rank Assessment For Torrent Sculpin (Cottus Rhotheus), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for torrent sculpin (Cottus rhotheus) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Reticulate Sculpin (Cottus Perplexus), Misty Nelson
Oregon State Rank Assessment For Reticulate Sculpin (Cottus Perplexus), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for reticulate sculpin (Cottus perplexus) using NatureServe methodology, 2023.
The Mayfly Newsletter, Donna Giberson
The Mayfly Newsletter, Donna Giberson
The Mayfly Newsletter
The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.
Oregon State Rank Assessment For Pistol River Pocket Gopher (Thomomys Bottae Detumidus), Misty Nelson
Oregon State Rank Assessment For Pistol River Pocket Gopher (Thomomys Bottae Detumidus), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Pistol River pocket gopher (Thomomys bottae detumidus) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Gold Beach Pocket Gopher (Thomomys Mazama Helleri), Misty Nelson
Oregon State Rank Assessment For Gold Beach Pocket Gopher (Thomomys Mazama Helleri), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Gold Beach pocket gopher (Thomomys mazama helleri) using NatureServe methodology, 2023.
On Some Teratological Scorpions In The Natural History Museum, London And Checklist Of The Scorpiological Literature On Morphological Anomalies (Arachnida: Scorpiones), Danniella Sherwood, Luis F. De Armas
On Some Teratological Scorpions In The Natural History Museum, London And Checklist Of The Scorpiological Literature On Morphological Anomalies (Arachnida: Scorpiones), Danniella Sherwood, Luis F. De Armas
Euscorpius
Whilst undertaking curation in the collections of the Natural History Museum, London, the senior author came across a jar of scorpions marked ‘scorpions with curled feet’. Further investigation showed this jar was full of scorpions with teratological anatomy. We hereby document and illustrate all of the specimens and discuss their respective anomalies. Furthermore, a comprehensive checklist of the literature on anomalies in scorpions, including giving the life stage and sex where known, is compiled for the benefit of future workers.
Oregon State Rank Assessment For Yellow Bumblebee (Bombus Fervidus), Eleanor P. Gaines, Misty Nelson
Oregon State Rank Assessment For Yellow Bumblebee (Bombus Fervidus), Eleanor P. Gaines, Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for yellow bumblebee (Bombus fervidus) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Columbia Gorge Oregonian (Cryptomastix Hendersoni), Misty Nelson, Eleanor P. Gaines
Oregon State Rank Assessment For Columbia Gorge Oregonian (Cryptomastix Hendersoni), Misty Nelson, Eleanor P. Gaines
Institute for Natural Resources Publications
Oregon state conservation status assessment for Columbia Gorge oregonian (Cryptomastix hendersoni) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Suckley's Cuckoo Bumblebee (Bombus Suckleyi), Eleanor P. Gaines, Misty Nelson
Oregon State Rank Assessment For Suckley's Cuckoo Bumblebee (Bombus Suckleyi), Eleanor P. Gaines, Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Suckley's cuckoo bumblebee (Bombus suckleyi) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Yellow Bumblebee (Bombus Fervidus), Misty Nelson
Oregon State Rank Assessment For Yellow Bumblebee (Bombus Fervidus), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Yellow bumblebee (Bombus fervidus) using NatureServe methodology, 2023.
Oregon State Ranking Assessment For Morrison Bumblebee (Bombus Morrisoni), Misty Nelson
Oregon State Ranking Assessment For Morrison Bumblebee (Bombus Morrisoni), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Morrison bumblebee (Bombus morrisoni) using NatureServe methodology, 2023.
Catfish Neurocranium 3-D Scan, Pamela Gonzalez, Jarod Johnson, David Kerstetter
Catfish Neurocranium 3-D Scan, Pamela Gonzalez, Jarod Johnson, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
No abstract provided.