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Articles 1 - 30 of 339
Full-Text Articles in Entire DC Network
Distribution And Diversity Of Ponyfishes (Perciformes, Leiognathidae) In The Waters Of Sonmiani’S Bay, Balochistan, Pakistan, Noor Hawa, Noor Us Saher
Distribution And Diversity Of Ponyfishes (Perciformes, Leiognathidae) In The Waters Of Sonmiani’S Bay, Balochistan, Pakistan, Noor Hawa, Noor Us Saher
Journal of Bioresource Management
The current research was conducted during October 2020 to September 2021 in bay waters of Sonmiani, Balochistan as aimed to fill the paucity of diversity and distribution of research for the bay waters. Monthly fish samples were collected using gill net and beach seine during high and low tide. In the present study, out of nine species, the six species were identified as a new report species belongs to Leiognathidae family. Secutor interruptus (N=132) was the most abundant species whereas the least abundant species collected during the study period was Karalla daura (N=1). Highest diversity (1.37) was estimated during the …
Dietary Stability Of The Eurasian Beaver Revealed By Hair Stable Isotopes, Linas Balčiauskas, Rasa Vaitkevičiūtė Koklevičienė, Andrius Garbaras, Inga Garbarienė, Laima Balčiauskienė
Dietary Stability Of The Eurasian Beaver Revealed By Hair Stable Isotopes, Linas Balčiauskas, Rasa Vaitkevičiūtė Koklevičienė, Andrius Garbaras, Inga Garbarienė, Laima Balčiauskienė
Turkish Journal of Zoology
The Eurasian beaver (Castor fiber) is a keystone ecosystem engineer whose expanding populations increasingly occupy agricultural landscapes. Hair stable isotope analysis was applied to reconstruct assimilated diet in 56 legally hunted beavers in Lithuania in 2024–2025. Stable carbon isotope values were tightly clustered (–25.53 ± 0.10‰ SE), while those for nitrogen showed greater variability (5.38 ± 0.20‰ SE), indicating limited interindividual dietary differentiation. Generalized linear models revealed no significant effects of sex, year, or month, and age-related differences were limited to the youngest individuals. Comparison with published Polish data showed no significant differences in mean isotope values. Overall, the results …
Endemism Patterns Of Leaf Beetles (Coleoptera: Chrysomelidae) In Türkiye, İsmai̇l Şen, Ali̇ Gök
Endemism Patterns Of Leaf Beetles (Coleoptera: Chrysomelidae) In Türkiye, İsmai̇l Şen, Ali̇ Gök
Turkish Journal of Zoology
In this study, the distribution of endemic leaf beetles in Türkiye was analyzed holistically at the provincial scale using species richness (ENR), corrected weighted endemism (CWE), and range-restricted endemism (RRE) indices. A total of 95 endemic taxa were found in Türkiye and these taxa exhibited significant spatial heterogeneity in terms of richness and extent of distribution. The Western and Central Taurus Mountains and the Eastern Black Sea Region were found to be the main centers of endemism, with high densities of narrowly distributed and geographically restricted species. These patterns clearly demonstrate that key biogeographic factors, such as steep elevation gradients, …
Latest Sightings Of The Striped Hyena In North Africa: Major Threats And Conservation Actions, Abderrazak El Alami, Abderrazzak Fattah, Ilyas El Alami, Ziad El Alami
Latest Sightings Of The Striped Hyena In North Africa: Major Threats And Conservation Actions, Abderrazak El Alami, Abderrazzak Fattah, Ilyas El Alami, Ziad El Alami
Turkish Journal of Zoology
The striped hyena (Hyaena hyaena) is widely distributed across the northern half of Africa, the Middle East, the Arabian Peninsula, and parts of Asia. However, numerous studies indicate that this carnivore is in decline, and it is currently classified as near threatened on the IUCN Red List of threatened species. In North Africa, the Hyaena hyaena barbara subspecies has been extirpated from many areas. This article summarizes data collected from observations of the striped hyena in North Africa between 2004 and 2024. Among the 418 striped hyenas recorded in North Africa between 2004 and 2024, 18.4% (n = 77) were …
Habitat Diversity Or Altitudinal Gradient? Which Factor Better Explains Ground Beetle (Coleoptera: Carabidae) Biodiversity? A Case Study From Davraz Mountain (Isparta, Türkiye), Ebru Ceren Fi̇dan, Ali̇ Gök
Habitat Diversity Or Altitudinal Gradient? Which Factor Better Explains Ground Beetle (Coleoptera: Carabidae) Biodiversity? A Case Study From Davraz Mountain (Isparta, Türkiye), Ebru Ceren Fi̇dan, Ali̇ Gök
Turkish Journal of Zoology
Ground beetle (Carabidae) species diversity and spatial distribution were surveyed across five habitat types along an elevational gradient on Davraz Mountain, a biogeographical transition area in southwestern Türkiye. The analyses showed that habitat heterogeneity—particularly soil moisture and texture—exerts a stronger influence on carabid diversity than elevation. Sørensen’s and Jaccard similarity indices showed strong faunal overlap between some sampling areas, while multivariate principal components and canonical correspondence analyses verified distinct environmental gradients influencing community structure. Diversity indices indicated varying levels of species richness and evenness across sampling areas. The data highlight the importance of fine-scaled habitat features in driving ground beetle …
Oligonychus Trichardti (Acari: Tetranychidae) Associated With Urochloa Grasses In Kenya: An Integrative Taxonomic Approach, Paula Espitia-Buitrago, Claudia Perea, Lavender A. Odhiambo, Rosa N. Jauregui, Frank Chidawanyika
Oligonychus Trichardti (Acari: Tetranychidae) Associated With Urochloa Grasses In Kenya: An Integrative Taxonomic Approach, Paula Espitia-Buitrago, Claudia Perea, Lavender A. Odhiambo, Rosa N. Jauregui, Frank Chidawanyika
All Peer-Reviewed Publications
Spider mites represent a significant constraint to improved forage grass adoption in East Africa, particularly affecting Urochloa cultivars that are crucial for addressing the region’s 40% livestock feed gap. This study employed an integrative taxonomic approach combining morphological and molecular analyses to identify a spider mite species infesting Urochloa interspecific grasses in Kenya. A colony of 80 spider mites was established from symptomatic Urochloa hybrid cv. Cayman plants collected from Mbita Point, Kenya, showing characteristic foliar chlorosis and necrotic spots. Morphological examination of 46 slide-mounted specimens using Hoyer’s medium revealed consistent morphotypical features characteristic of Oligonychus (Reckiella) trichardti Meyer, 1974. …
Taxonomy Of Endophytic Fungi Associated With Vallisneria Neotropicalis, Md. Arafat Rashid
Taxonomy Of Endophytic Fungi Associated With Vallisneria Neotropicalis, Md. Arafat Rashid
Graduate Theses and Dissertations (2019 - present)
This study presents the first comprehensive taxonomic and ecological investigation of endophytic fungi (EF) associated with the submerged aquatic macrophyte Vallisneria neotropicalis in the southern United States. Over a 12 month period, from April 2023 to March 2024, leaf samples were collected from two distinct sites in Mobile Bay, Alabama a disturbed, brackish Causeway location and a cleaner, less impacted site at Meaher State Park. Using culture dependent methods, a total of 257 fungal endophytes were isolated from 1,200 leaf segments. All isolates belonged to the phylum Ascomycota, distributed across 3 classes, 6 orders, 10 families, and 19 taxa. The …
Trophic Niche Overlap Between Native And Alien Fish Species: A Challenge For The Aquatic Ecosystems, Rana Manzoor Ahmad, Abdul Majid Khan, Mariya Basharat, Muhammad Rizwan, Neelam Shahzadi, Muhammad Imran
Trophic Niche Overlap Between Native And Alien Fish Species: A Challenge For The Aquatic Ecosystems, Rana Manzoor Ahmad, Abdul Majid Khan, Mariya Basharat, Muhammad Rizwan, Neelam Shahzadi, Muhammad Imran
Journal of Bioresource Management
The different physiological and biological challenges are introduced not only on land but also in aquatic ecosystems due to increasing climatic changes and human needs. One of these challenges is the introduction of invasive alien species to the native freshwater ichthyofauna. These species not only disturb the ecological balance of the native water bodies but can also be a vector for parasitic diseases. The current study is designed to disclose the trophic niche overlap among exotic (Cyprinus carpio and Oreochromis mozambicus) and indigenous fish species (Labeo calbasu and Cirrhinus mrigala) from Head Baloki (Ravi River), Punjab, …
Environmental Controls On Planktonic Community Variability And Ecosystem Responses In The Romanian Black Sea, Cristina Tabarcea, Elena Bișinicu, George-Emanuel Harcotă, Aurelia Țoțoiu, Oana Vlas, Elena Pantea, Luminita Lazar
Environmental Controls On Planktonic Community Variability And Ecosystem Responses In The Romanian Black Sea, Cristina Tabarcea, Elena Bișinicu, George-Emanuel Harcotă, Aurelia Țoțoiu, Oana Vlas, Elena Pantea, Luminita Lazar
Turkish Journal of Zoology
This study examines the structure, distribution, and environmental influences on planktonic communities in the Romanian Black Sea, based on data collected from Black Sea national monitoring stations in June 2023. We assessed the qualitative and quantitative composition of phytoplankton, microzooplankton, mesozooplankton, macrozooplankton, and ichthyoplankton, alongside key environmental factors such as temperature, salinity, dissolved oxygen, and nutrient concentrations (nitrite, nitrate, ammonium, phosphate, and silicate). The results highlight the dominance of dinoflagellates within the phytoplankton community, while copepods constitute the most abundant mesozooplankton group. Species from the Codonellidae family mainly represent microzooplankton diversity, while macrozooplankton is largely dominated by the scyphozoan Aurelia …
Discrimination Of Sprat Species (Clupeonella Spp.) In The Caspian Sea And The Sea Of Marmara Using Otolith Shape Analysis, Mohammad Reza Shariati, Mohammad Sadegh Alavi-Yeganeh, Mehdi Ghanbarifardi, Gülşah Saç, Müfi̇t Özuluğ, Erdoğan Çi̇çek
Discrimination Of Sprat Species (Clupeonella Spp.) In The Caspian Sea And The Sea Of Marmara Using Otolith Shape Analysis, Mohammad Reza Shariati, Mohammad Sadegh Alavi-Yeganeh, Mehdi Ghanbarifardi, Gülşah Saç, Müfi̇t Özuluğ, Erdoğan Çi̇çek
Turkish Journal of Zoology
This study evaluates the discriminating power of sagittal otolith shape among three species of the genus Clupeonella endemic to the Caspian Sea (Clupeonella grimmi, Clupeonella caspia, and Clupeonella engrauliformis) and one species from the Sea of Marmara (Clupeonella Cultriventris). Identification of these species is challenging due to their morphological similarities, and the taxonomic validity of C. caspia and C. cultriventris remains ambiguous because of their resemblance. Scanning electron microscope (SEM) images were utilized to examine the morphological characteristics of otoliths. Stereomicroscope images were used to calculate six shape indices: rectangularity, roundness, ellipticity, circularity, aspect ratio, and form factor. The outline …
A Population Study Of The Freshwater Turtles Of The Recently Expanded Lake Hydaway In Campbell County, Virginia, Joshua Sorenson
A Population Study Of The Freshwater Turtles Of The Recently Expanded Lake Hydaway In Campbell County, Virginia, Joshua Sorenson
Senior Honors Theses
Freshwater turtles are an important part of the ecological systems in central Virginia. At the recently expanded Lake Hydaway, there are several turtle species for which their population characteristics were unknown, especially the prolific Eastern Painted Turtle (Chrysemys picta picta) and Red-bellied Cooter (Pseudemys rubriventris). For five weeks, the lake was surveyed for turtles using hoop nets, and the turtles were marked and measured. Population characteristics such as carapace length and sex ratio for the Eastern Painted Turtle and Red-bellied Cooter were calculated, as well as population estimates for those two species. The Red-eared Slider ( …
Contribution To The Knowledge Of Cave-Dwelling Fauna From The Prokletije Mountains, Joanna Kocot-Zalewska, Iwona Słowińska, Paweł Domagała, Jakub Bienias, Dominik Szymański, Dawid Szymański, Hubert Szymański, Paweł Sienkiewicz, Andrzej Józef Woźnica
Contribution To The Knowledge Of Cave-Dwelling Fauna From The Prokletije Mountains, Joanna Kocot-Zalewska, Iwona Słowińska, Paweł Domagała, Jakub Bienias, Dominik Szymański, Dawid Szymański, Hubert Szymański, Paweł Sienkiewicz, Andrzej Józef Woźnica
International Journal of Speleology
The article presents the results of the study on invertebrate fauna inhabiting caves in the Prokletije Mountains. This mountain range is located on the border of Montenegro, Albania, and Kosovo. During the expeditions to Albania in 2021 and to Montenegro in 2022–2023, 17 caves and one bauxite mine were visited altogether. All the studied caves are located very high, above 1,700 m a.s.l., where the temperature inside is low, and several are filled with ice or snow. During the Albanian expedition 102 arthropods have been collected altogether. Among these were 19 beetles (Coleoptera), 44 flies (Diptera), three crickets (Orthoptera), five …
Influence Of Inselbergs On Bat Diversity In Afrotropical Ecosystems, Amanda Lee Grunwald
Influence Of Inselbergs On Bat Diversity In Afrotropical Ecosystems, Amanda Lee Grunwald
Dissertations and Theses
Humans are altering biological communities on local to global scales, driving profound changes in biodiversity and ecosystem functioning. However, significant gaps and biases in biodiversity data hinder our understanding of ecosystem interactions, making it challenging to develop effective, data-driven policies to protect remaining biodiversity. Bats, the second most species-rich groups of mammals, have a global distribution, and perform a broad array of vital ecosystem functions. Their diversity peaks in the tropics, where they often constitute more than 50% of mammal species diversity. The Afrotropics host substantial bat diversity, yet have historically been perceived as having lower species richness compared to …
Investigating The Presence Of Individuality And Behavioral Syndromes In Northern Cottonmouths (Agkistrodon Piscivorus), Joshua Lowy
Graduate Theses/Dissertations
Within the last 15 ̶20 years, research on behavioral syndromes has seen a surge in prominence and popularity in behavioral ecology, revealing that many animals exhibit individually consistent behavioral tendencies. Behavioral syndromes occur when behavioral traits are correlated with one another within the same context or across different contexts. Despite new appreciation for the ecological, evolutionary, and conservation implications of behavioral syndrome data, the taxonomic breadth of studies is uneven. Snakes are underrepresented within squamate reptiles and, among venomous species, only two rattlesnakes (Crotalus) have been investigated for evidence of behavioral syndromes. My study investigates individuality and the presence of …
Analyzing Head Morphology Trends With Increasing Population Density In A Jamaican Lizard Species, Lillian Durand
Analyzing Head Morphology Trends With Increasing Population Density In A Jamaican Lizard Species, Lillian Durand
2024 Fall Honors Capstone Projects - Archive
Anolis lizards are model organisms for studying natural selection and evolutionary processes. One trait that is hypothesized to be advantageous for males is head size, as larger heads lead to stronger bite forces and increased likelihood in outcompeting other males for mates. To better understand how linked head size and intraspecific competition are, the head morphology of male A. lineatopus was analyzed among Jamaican populations with varying levels of population density. Population densities were determined using standardized plot surveys and mark resight models. Head dimensions and body condition for individual lizards were measured at each site. My study found that …
Lateral Dispersal Of Adult Trichoptera: Flight Distance And Traveling Pattern, Peilin Tan
Lateral Dispersal Of Adult Trichoptera: Flight Distance And Traveling Pattern, Peilin Tan
All Theses
Trichoptera species (caddisfly) are usually used as bio-indictors for surface water quality due to their sensitivity to environmental changes, and if assessing water quality with light-trapped adults, knowing their travelling patterns will improve the accuracy of such assessments. To investigate how far a caddisfly will migrate from their emerging stream, three streams in South Carolina with different widths (Wildcat Creek 1.2 m, Brasstown Creek 11.2 m and Chattooga River 26.95 m) were selected for this study with light traps placed at three distances (0 m, 50 m, 100 m) from the streams. How long and when? Both species richness and …
Variation In Diet And Leafy Browse Offerings Amongcolobus Monkeys (Colobus Spp.) And Langurs(Trachypithecus Spp.) In Aza Facilities, Maura R. Plocek, Noah T. Dunham
Variation In Diet And Leafy Browse Offerings Amongcolobus Monkeys (Colobus Spp.) And Langurs(Trachypithecus Spp.) In Aza Facilities, Maura R. Plocek, Noah T. Dunham
Student Scholarship
Providing nutritionally balanced diets is a key aspect of successful husbandry and can help support sustainable ex situ populations. This study focuses on the diets of zoo‐housed colobus monkeys (Colobus angolensis and C. guereza) and langurs (Trachypithecus cristatus and T. francoisi) across AZA institutions. We utilized survey responses from 34 institutions to (1)document the extent of dietary variation with regard to food categories and macronutrients offered, (2) assess interspecific variation in diets offered, and (3) identify important aspects of browse provisioning among institutions. A total of 95 different food items and 229 common‐name browse types were …
Length-Weight Relationships And Condition Factor Of 30 Species From The Upper Syr Darya Drainage, Uzbekistan, Obboskhon Azamov, Sharofiddin Khalimov, Sultonbek Gulomov, Dildorakhon Komilova, Yorkinoy Kayumova, Murodjon Rakhmonov, Shahnoza Abdulatipova, Ominakhon Gafurova, Kholidakhon Komilova, Mushtariy Asrolova, Dilafruz Urmonova, Bakhtiyor Sheraliev
Length-Weight Relationships And Condition Factor Of 30 Species From The Upper Syr Darya Drainage, Uzbekistan, Obboskhon Azamov, Sharofiddin Khalimov, Sultonbek Gulomov, Dildorakhon Komilova, Yorkinoy Kayumova, Murodjon Rakhmonov, Shahnoza Abdulatipova, Ominakhon Gafurova, Kholidakhon Komilova, Mushtariy Asrolova, Dilafruz Urmonova, Bakhtiyor Sheraliev
Turkish Journal of Zoology
Length-weight relationships (LWR) were estimated for 30 fish species i.e. Abbottina rivularis, Alburnus chalcoides, A. oblongus, A. taeniatus, Carassius gibelio, Channa argus, Cottus spinulosus, Cyprinus carpio, Gambusia holbrooki, Glyptosternon oschanini, Gobio lepidolaemus, Hemiculter leucisculus, Hypophthalmichthys nobilis, Iskandaria kuschakewitschi, Luciobarbus conocephalus, Micropercops cinctus, Opsariichthys bidens, Pelecus cultratus, Petroleuciscus squaliusculus, Pseudorasbora parva, Rhinogobius cf. lindbergi, Rhodeus ocellatus, Sabanejewia aralensis, Salmo oxianus, Schizothorax eurystomus, Triplophysa daryoae, T. elegans, T. ferganaensis, T. labiata, and T. strauchii from the Upper Syr Darya drainage, Uzbekistan. The LWR parameters were determined using a linear logarithmic regression model of weight against length in which values for the slope …
Diversity Of Porifera Along The Coasts Of Türkiye, Alper Evcen, Bülent Topaloğlu
Diversity Of Porifera Along The Coasts Of Türkiye, Alper Evcen, Bülent Topaloğlu
Turkish Journal of Zoology
This study compiled data on the distribution of sponge species on the coasts of Türkiye. The checklist consists of 183 speciesbelonging to 52 families, 16 orders, and 3 classes. The orders Haplosclerida (32 species), Poecilosclerida (28 species), Tetractinellida (26species), Dictyoceratida (21 species), and Suberitida (18 species) have the highest numbers of species found in the region. The Aegeancoast has the highest number of sponge species (155 species), followed by the Sea of Marmara (84 species), the Levantine coast (50species), and the Black Sea coast (24 species). Among the species, Niphates toxifera and Paraleucilla magna are alien species. A total of …
Diversity Of Fishes Along The Coast Of Türkiye, Murat Bi̇lecenoğlu
Diversity Of Fishes Along The Coast Of Türkiye, Murat Bi̇lecenoğlu
Turkish Journal of Zoology
The Turkish marine fish diversity was revised and updated in this study based on data published in the last decade. There arecurrently 552 species in the inventory, reflecting an increase of 7.8% since the previous checklist and belonging to the classes of Teleostei(479 spp.), Elasmobranchii (68 spp.), Chondrostei (3 spp.), Petromyzonti (1 sp.), and Holocephali (1 sp.). Twelve species were excludedfrom the faunal list due to the lack of valid proof of their presence, the distribution ranges of an additional 12 species were corrected, twonew records (Istiompax indica (Cuvier, 1832) and Mola alexandrini (Ranzani, 1839)) previously unknown from Türkiye were …
Diversity Of Bryozoa Along The Coasts Of Türkiye, Ferah Koçak, Si̇nem Aydin
Diversity Of Bryozoa Along The Coasts Of Türkiye, Ferah Koçak, Si̇nem Aydin
Turkish Journal of Zoology
The current status of bryozoan species distributed along the coast of Türkiye were revised and an updated checklist including 185 species (24 cyclostomatids, 20 ctenostomatids and 141 cheilostomatids) was presented. Cheilostomes largely prevail (141 species, 87 genera and 50 families) followed by cyclostomes (24 species, 15 genera and 9 families) and ctenostomes (20 species, 9 genera and 8 families) in bryozoan fauna of Türkiye. The distribution of species and genera highlights the Aegean Sea as the most diverse, hosting 146 species. In this study, Hornera frondiculata (Lamarck, 1816), Amathia verticillata (delle Chiaje, 1822), Bugulina fulva (Ryland, 1960), Tricellaria inopinata d'Hondt …
Study Of Avian Migration Patterns Using Stable Isotope Analysis In The Galite Archipelago, Tunisia, Hsan Ben Jemaa, Said Nouira, François Fourel, Ilham Bentaleb
Study Of Avian Migration Patterns Using Stable Isotope Analysis In The Galite Archipelago, Tunisia, Hsan Ben Jemaa, Said Nouira, François Fourel, Ilham Bentaleb
Turkish Journal of Zoology
This research employed stable isotope analysis to investigate the migratory patterns and geographic origins of the Eleonora's falcon (Falco eleonorae) and its associated prey species within the Galite Archipelago, Tunisia. Feathers collected from both juvenile and adult falcons, along with their prey, were analysed for deuterium isotopic composition using the "Isorix" package in R, which facilitated the geographic assignment based on stable isotope ratios. The results demonstrated no significant difference in deuterium values (δ2H) between adult and juvenile falcons, indicating a lack of geographical variation in moulting locations among the different age groups. However, the isotopic data for adult falcons …
Dietary Observations Of Adult Pleurodema Nebulosum (Anura: Leptodactylidae) From Argentina, Gabriel Natalio Castillo, Cynthia J. González- Rivas
Dietary Observations Of Adult Pleurodema Nebulosum (Anura: Leptodactylidae) From Argentina, Gabriel Natalio Castillo, Cynthia J. González- Rivas
Turkish Journal of Zoology
This study is the first to examine the diet composition of adult Pleurodema nebulosum specimens based on an analysis of the gastrointestinal contents of 78 individuals. Analyzed herein were 40 specimens from a site disturbed due to anthropogenic action and 38 from a protected area in Argentina. Differences were found in the trophic consumption at both sites. In the protected area, P. nebulosum presented an active foraging mode, with a diet specialized in prey items from the Formicidae family. At the disturbed site, this amphibian showed a sit-and-wait foraging mode, with a generalist diet where it consumes Hemiptera and Coleoptera. …
Sex Differences In The Diets Of Forest-Dwelling Baboons (Papio Anubis), Kara Hartunian
Sex Differences In The Diets Of Forest-Dwelling Baboons (Papio Anubis), Kara Hartunian
Theses and Dissertations
The ability to eat and switch between many food sources is an adaptative feeding strategy utilized for meeting nutritional needs across different environments, seasons, and physiological conditions. Baboons (genus Papio) excel at both dietary flexibility and foraging selectively, and consequently have one of the most widespread geographic distributions in the Order. To further expand to our understanding of baboon feeding ecology, I analyzed foraging activity and the nutritional characteristics of the diets of the relatively understudied rainforest baboons (Papio anubis) living in Kibale National Park, Uganda. I also investigated if there are differences in food type choice …
Unraveling The Behavioral Ecology Of The Western Diamond-Backed Rattlesnake (Crotalus Atrox) Through The Lenses Of Personality, Predator-Prey Interactions, And Crypsis, Oceane Da Cunha
Open Access Theses & Dissertations
To thrive in an environment, individuals need to be able to forage efficiently and acquire mates. These resources are limited, and their acquisition depends upon the energy and time an individual chooses to allocate to each activity and the environmental conditions, leading to behavioral trade-offs. Different species, or even different individuals within the same population, respond to these trade-offs by employing contrasting strategies, leading to differential life-history outcomes. The overarching goal of this dissertation is to gain a better understanding of the trade-offs cryptic ambush mesopredators are facing using the western diamond-backed rattlesnake (Crotalus atrox) as a model species. Each …
Occlusal Surface Variations In Genetically-Identified Specimens Of The Genus Apodemus (Mammalia: Rodentia) Distributed In The Northern Anatolia Region And Three Turkish Islands: Gökçeada, Marmara Island And Bozcaada, Duygu Korkmaz, Engin Selvi̇, Nuri Yi̇ği̇t, Ercüment Çolak
Occlusal Surface Variations In Genetically-Identified Specimens Of The Genus Apodemus (Mammalia: Rodentia) Distributed In The Northern Anatolia Region And Three Turkish Islands: Gökçeada, Marmara Island And Bozcaada, Duygu Korkmaz, Engin Selvi̇, Nuri Yi̇ği̇t, Ercüment Çolak
Turkish Journal of Zoology
A total of 134 Apodemus samples, whose genetic diagnoses had been previously conducted, were morphologically examined from 39 localities in Northern Anatolia, Thrace, Gökçeada, Bozcaada and the Marmara Island. The variation boundaries of dental variations in the distribution areas of five Apodemus species (Apodemus flavicollis, Apodemus witherbyi, Apodemus sylvaticus, Apodemus uralensis, Apodemus mystacinus) included in the research were determined. The defining morphological characters of Apodemus species, which have a complex taxonomic status, and their variations according to regions were identified using samples that had undergone genetic diagnoses. It was determined whether geographical barriers such as the Marmara Sea, the Bosphorus …
Assessing Population Size And Survival Rate Of Pelophylax Bedriagae Caralitanus, In A Well-Protected Nature Park In Türkiye, Ayfer Şirin, Akın Kiraç, Gürçay Kıvanç Akyildiz, Eyup Başkale
Assessing Population Size And Survival Rate Of Pelophylax Bedriagae Caralitanus, In A Well-Protected Nature Park In Türkiye, Ayfer Şirin, Akın Kiraç, Gürçay Kıvanç Akyildiz, Eyup Başkale
Turkish Journal of Zoology
Estimating population trends provides valuable information for conservation biologists. Although there are many methods for estimating demographic rates, capture-mark-recapture (CMR) methods are known to be the most realistic method that can provide detailed data on individuals and populations, including the achievement of conservation goals. This study focused on determining the population trend of Pelophylax bedriagae caralitanus, Beyşehir frog using the CMR method in a protected area during the 2011 - 2019 breeding seasons. Our CMR data led to the selection of a model-considering constant survival rates, capture/recapture probabilities, and year-specific immigration/emigration patterns [Φ(··) y'(t) y''(t) p(··) = c(··) N(t)]-as the …
Trophic Ecology Of Black Swallowers (Scombriformes: Chiasmodontidae: Chiasmodon) In The Deep-Pelagic Gulf Of Mexico, Travis J. Kirk
Trophic Ecology Of Black Swallowers (Scombriformes: Chiasmodontidae: Chiasmodon) In The Deep-Pelagic Gulf Of Mexico, Travis J. Kirk
All HCAS Student Capstones, Theses, and Dissertations
The ecology of deep-pelagic predatory fishes remains poorly understood despite their importance as ecosystem regulators and energy transfer vectors. This study investigated the trophic ecology of three species of the predatory fish genus Chiasmodon (“black swallowers”) in the Gulf of Mexico, a region that serves as an analog for the global low-latitude deep pelagial, the world’s largest cumulative ecosystem. Foraging habits (e.g., selectivity, chronology, daily ration) of an “advanced” evolutionary fish in a system that is otherwise dominated by basal fish taxa, were quantitatively estimated via high-resolution stomach content analysis. A quantitative dataset of both predator and prey abundance, the …
Vertebrate Diversity In The La Amistad International Park Buffer Zone, Guadalupe, Chiriqui, Panamá, Mina Olson
Vertebrate Diversity In The La Amistad International Park Buffer Zone, Guadalupe, Chiriqui, Panamá, Mina Olson
Independent Study Project (ISP) Collection
Forest fragmentation and increasing agricultural land use are posing threats to the diversity of vertebrates in Panama and across the Mesoamerican Biological Corridor. Protected areas are crucial for providing connectivity and maintaining vertebrate populations. For endemic species with small native ranges, these protected areas are critical for their survival due to sensitivity of habitat change. Higher species diversity and occupancy has been reported for both birds and mammals in protected and forested areas. This pilot survey of vertebrate species was conducted to determine which species live in a primary forest within the buffer zone of La Amistad International Park near …
Documenting The Southern Range Terminus Of The Wood Frog (Lithobates Sylvaticus) In North America, Christian Braswell
Documenting The Southern Range Terminus Of The Wood Frog (Lithobates Sylvaticus) In North America, Christian Braswell
Theses
The Wood Frog (Lithobates sylvaticus) holds a remarkable position in North American amphibian biology, with its range extending from the Arctic Circle down to the near sub-tropical southeastern United States. This thesis presents a novel quantitative polymerase chain reaction analysis (qPCR) primer specific to L. sylvaticus and a survey effort regarding the southernmost distribution and detection of this species in Alabama through the application of environmental DNA (eDNA) sampling techniques. By investigating historical data and employing advanced genetic methodologies, this research provides insights into the contemporary status and distribution of the Wood Frog. This research is important to …