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Articles 1 - 21 of 21
Full-Text Articles in Entire DC Network
The Effect Of Insularity On The Seasonal Population Structure Of Mesobuthus Gibbosus (Scorpiones: Buthidae), Dimitris Kaltsas, Iasmi Stathi, Moysis Mylonas
The Effect Of Insularity On The Seasonal Population Structure Of Mesobuthus Gibbosus (Scorpiones: Buthidae), Dimitris Kaltsas, Iasmi Stathi, Moysis Mylonas
Euscorpius
We compared the population structure of Mesobuthus gibbosus from autumn to mid-summer at two similar phryganic ecosystems, one in continental Greece (Thessalia, near Volos city) and one in insular Greece (eastern Crete). Data were collected monthly using the capture-recapture method. At both sites, density was low during the cold period and increased towards summer. During the samplings, only a small percentage of each population was present. Population density and co-occurrence of scorpions with scorpions or other animals was higher in Crete than in Volos, probably due to the higher inter- and intraspecific competition in Volos. The population structure of the …
Integrating Resource Selection Into Spatial Capture-Recapture Models For Large Carnivores, K. M. Proffitt, Joshua F. Goldberg, Mark Hebblewhite, R. Russell, B. S. Jimenez, H. S. Robinson, K. Pilgrim, M. K. Schwartz
Integrating Resource Selection Into Spatial Capture-Recapture Models For Large Carnivores, K. M. Proffitt, Joshua F. Goldberg, Mark Hebblewhite, R. Russell, B. S. Jimenez, H. S. Robinson, K. Pilgrim, M. K. Schwartz
Wildlife Biology Faculty Publications
Wildlife managers need reliable methods to estimate large carnivore densities and population trends; yet large carnivores are elusive, difficult to detect, and occur at low densities making traditional approaches intractable. Recent advances in spatial capture-recapture (SCR) models have provided new approaches for monitoring trends in wildlife abundance and these methods are particularly applicable to large carnivores. We applied SCR models in a Bayesian framework to estimate mountain lion densities in the Bitterroot Mountains of west central Montana. We incorporate an existing resource selection function (RSF) as a density co-variate to account for heterogeneity in habitat use across the study area …
Phylogeography Of Southeast Asian Flying Foxes (Chiroptera: Pteropodidae: Pteropus), Susan Man Shu Tsang
Phylogeography Of Southeast Asian Flying Foxes (Chiroptera: Pteropodidae: Pteropus), Susan Man Shu Tsang
Dissertations, Theses, and Capstone Projects
Flying foxes (Pteropus) are a genus of Old World fruit bats that are important seed dispersers and pollinators for plants native to the 200,000+ islands in Southeast Asia, yet they are some of the most poorly known bats in the world. They comprise some of the largest known bat species, and are morphologically relatively conserved on the genus level. Pteropus is the most species-rich genus within Pteropodidae, though the origin for this diversity remains incompletely understood. In Chapter 1, I discuss the importance of Pteropus to the ecosystem and as reservoir hosts. In Chapter 2, a molecular phylogeny is presented …
Isotopic Incorporation Rates And Discrimination Factors In Mantis Shrimp Crustaceans., Maya Devries, Carlos Del Rio, Tate Tunstall, Todd Dawson
Isotopic Incorporation Rates And Discrimination Factors In Mantis Shrimp Crustaceans., Maya Devries, Carlos Del Rio, Tate Tunstall, Todd Dawson
Faculty Publications, Biological Sciences
Stable isotope analysis has provided insights into the trophic ecology of a wide diversity of animals. Knowledge about isotopic incorporation rates and isotopic discrimination between the consumer and its diet for different tissue types is essential for interpreting stable isotope data, but these parameters remain understudied in many animal taxa and particularly in aquatic invertebrates. We performed a 292-day diet shift experiment on 92 individuals of the predatory mantis shrimp, Neogonodactylus bredini, to quantify carbon and nitrogen incorporation rates and isotope discrimination factors in muscle and hemolymph tissues. Average isotopic discrimination factors between mantis shrimp muscle and the new diet …
Fauna Census Of Intertidal Cliffs, Mangapwani, Zanzibar, Emily Jankowski
Fauna Census Of Intertidal Cliffs, Mangapwani, Zanzibar, Emily Jankowski
Independent Study Project (ISP) Collection
Due to their extreme variations in condition over the course of a day, intertidal zones are challenging environments. Organisms that live there must be prepared to cope with both exposure and submersion, not to mention the temperature variations that accompany these conditions. The differing tolerances and adaptations of various organisms to these conditions generally cause patterns of vertical zonation to occur in the intertidal zone, especially when the shore is steep and rocky. Understanding the ecology of shore environments is important to future conservation and management efforts. This study was conducted on a beach in Mangapwani, Zanzibar at at 6˚ …
Fish Out Of Salt Water: Smoltification In Subyearling Chinook Salmon From The Laurentian Great Lakes, Steve Sharron
Fish Out Of Salt Water: Smoltification In Subyearling Chinook Salmon From The Laurentian Great Lakes, Steve Sharron
Electronic Thesis and Dissertation Repository
The timing of smoltification in juvenile anadromous salmonids is important to ensure individuals match their preparedness with their migration timing and the optimal conditions in the environment. I performed the first study of smoltification in adfluvial juvenile Chinook salmon naturalized in the Laurentian Great Lakes. In a hatchery study, I found that juveniles from one of these populations have similar patterns of smoltification timing to individuals from anadromous populations. Their Na+/K+ ATPase activity, a common indicator or smolt status, peaked at 7.7 μmoles ADP/mg protein/hour on July 1 in freshwater. During the peak period, individual body size …
Recurrent Evolution Of Melanism In South American Felids, Alexsandra Schneider, Corneliu Henegar, Kenneth Day, Devin Absher, Constanza Napolitano, Leandro Silveira, Victor A. David, Stephen J. O'Brien, Marilyn Menotti-Raymond, Gregory S. Barsh, Eduardo Eizirik
Recurrent Evolution Of Melanism In South American Felids, Alexsandra Schneider, Corneliu Henegar, Kenneth Day, Devin Absher, Constanza Napolitano, Leandro Silveira, Victor A. David, Stephen J. O'Brien, Marilyn Menotti-Raymond, Gregory S. Barsh, Eduardo Eizirik
Biology Faculty Articles
Morphological variation in natural populations is a genomic test bed for studying the interface between molecular evolution and population genetics, but some of the most interesting questions involve non-model organisms that lack well annotated reference genomes. Many felid species exhibit polymorphism for melanism but the relative roles played by genetic drift, natural selection, and interspecies hybridization remain uncertain. We identify mutations of Agouti signaling protein (ASIP) or the Melanocortin 1 receptor (MC1R) as independent causes of melanism in three closely related South American species: the pampas cat (Leopardus colocolo), the kodkod (Leopardus guigna), and Geoffroy’s cat …
The Global Decline Of Reptiles, Deja’ Vu Amphibians, J. Whitfield Gibbons, David E. Scott, Travis J. Ryan, Kurt A. Buhlmann, Tracey D. Tiuberville, Brian S. Metts, Judith L. Greene, Tony Mills, Yale Leiden, Sean Poppy, Christopher T. Winne
The Global Decline Of Reptiles, Deja’ Vu Amphibians, J. Whitfield Gibbons, David E. Scott, Travis J. Ryan, Kurt A. Buhlmann, Tracey D. Tiuberville, Brian S. Metts, Judith L. Greene, Tony Mills, Yale Leiden, Sean Poppy, Christopher T. Winne
Travis J. Ryan
Reptile species are declining on a global scale. Six significant threats to reptile populations are habitat loss and degradation, introduced invasive species, environmental pollution, disease, unsustainable use, and global climate change.
Animals As Neighbours: The Past And Present Of Commensal Animals By Terry O'Connor, Derek Woods
Animals As Neighbours: The Past And Present Of Commensal Animals By Terry O'Connor, Derek Woods
The Goose
Review of Terry O'Connor's Animals as Neighbours: The Past and Present of Commensal Animals.
Annual Variation In Autumn Migration Phenology And Energetic Condition At A Stopover Site In The Western United States, Robert A. Miller, Jay D. Carlisle, Neil Paprocki, Gregory S. Kaltenecker, Julie A. Heath
Annual Variation In Autumn Migration Phenology And Energetic Condition At A Stopover Site In The Western United States, Robert A. Miller, Jay D. Carlisle, Neil Paprocki, Gregory S. Kaltenecker, Julie A. Heath
Robert Miller
Climate change is having a dramatic effect on many migratory species. Changes in climate may lead to changes in food availability or other proximate cues that affect migratory behavior. We used 13 years (2000–2012) of data on songbird banding and raptor migration counts and captures during autumn migration in the intermountain West to evaluate whether regional temperature or precipitation or hemispheric climate indices predicted autumn migratory timing and energetic condition. We examined overall trends and evaluated the effects of diet and migratory distance on phenology and conditional responses. For the 13-year study period, no temperature, precipitation, or climate index trends …
Spider Assemblages And Dynamics On A Seasonal Island In The Pripyat River, Belarus, Izabela Hajdamowicz, Lucyna Pilacka, Wlodzimierz Meissner
Spider Assemblages And Dynamics On A Seasonal Island In The Pripyat River, Belarus, Izabela Hajdamowicz, Lucyna Pilacka, Wlodzimierz Meissner
Turkish Journal of Zoology
Spider assemblages on a seasonal river meadow island were studied in spring 2006 and 2007. Samples were collected with a set of 20-30 pitfall traps once every 5 days. Altogether, 1179 spiders belonging to 30 species were collected. There were 5 constant dominant species: medium-sized wandering Pardosa prativaga, and small-sized air colonizers Oedothorax retusus, Erigone dentipalpis, Oedothorax fuscus, and Pachygnatha degeeri. The relatively low species diversity was higher in 2007 and grew throughout the season with the lowering of the water level. The total turnover of species involved the least abundant species (below 1% of the total), mainly Linyphiidae. Abundance …
Age Structure Of Hemidactylus Turcicus (L., 1758) (Sauria: Gekkonidae) From Southwestern Anatolia (Muğla, Turkey), Betül Kanat, Cemal Varol Tok
Age Structure Of Hemidactylus Turcicus (L., 1758) (Sauria: Gekkonidae) From Southwestern Anatolia (Muğla, Turkey), Betül Kanat, Cemal Varol Tok
Turkish Journal of Zoology
In this study, a total of 36 (12♂♂, 18♀♀, 6 juveniles) Hemidactylus turcicus specimens, caught in the vicinity of Muğla (Turkey) between 2006 and 2011, were evaluated using the skeletochronology method. The mean snout-to-vent length (SVL) was measured as 28.45 ± 1.92 mm for juveniles, 50.53 ± 1.06 mm for males, and 51.1 ± 0.75 mm for females. When the cross-sections were examined, the age range was determined to be 4-8 years in the males and 4-9 years in the females. Individuals reach sexual maturity in 2-3 years. The maximum age was calculated as 9 years for a female. It …
Composition And Seasonal Variation Of Epigeic Arthropods In Field Margins Of Nw Portugal, Fátima Cristina Paulino Simão, Miguel Angel Carretero, Maria José Aires Do Amaral, Amadeu Mortágua Velho Da Maia Soares, Eduardo Mateos
Composition And Seasonal Variation Of Epigeic Arthropods In Field Margins Of Nw Portugal, Fátima Cristina Paulino Simão, Miguel Angel Carretero, Maria José Aires Do Amaral, Amadeu Mortágua Velho Da Maia Soares, Eduardo Mateos
Turkish Journal of Zoology
Field margins act as shelters for different arthropod taxa in agricultural fields. Several factors may promote seasonal changes in arthropod communities, especially in regions with marked seasonality, such as Mediterranean areas. Epigeic arthropods were sampled from the margins of fields located in northwestern Portugal during 2 contrasting seasons, spring and autumn. Organisms were identified to family or order level and seasonal variation in arthropod communities was evaluated. Abundance, group richness, and feeding guild parameters were affected by sampling season, with both abundance and richness being higher in spring. Of the groups captured in both seasons, most evidenced either higher abundance …
First Records Of The Sea Anemones Stichodactyla Tapetum Andstichodactyla Haddoni (Anthozoa: Actiniaria: Stichodactylidae)From The Southeast Of Iran, Chabahar (Sea Of Oman), Gilan Attaran Fariman, Pegah Javid
First Records Of The Sea Anemones Stichodactyla Tapetum Andstichodactyla Haddoni (Anthozoa: Actiniaria: Stichodactylidae)From The Southeast Of Iran, Chabahar (Sea Of Oman), Gilan Attaran Fariman, Pegah Javid
Turkish Journal of Zoology
Sea anemones (order Actiniaria) are among the most widespread invertebrates in the tropical waters. The anthozoans Stichodactyla haddoni (Saville-Kent, 1893) and Stichodactyla tapetum (Hemprich and Ehrenberg in Ehrenberg, 1834) (family Stichodactylidae) were reported for the first time from the southeastern coast of Iran, Chabahar Bay, Tiss zone. The specimens of S. haddoni and S. tapetum were collected by hand from the intertidal zone of sand and rock substrates in April 2012. The samples characteristics were morphologically studied in the field and laboratory. This study presents a new locality record and information about S. haddoni and S. tapetum found in this …
Age Estimation Of Anatololacerta Anatolica (Werner, 1902) In The Vicinity Of Çanakkale By Skeletochronology, Batuhan Yaman Yakin, Cemal Varol Tok
Age Estimation Of Anatololacerta Anatolica (Werner, 1902) In The Vicinity Of Çanakkale By Skeletochronology, Batuhan Yaman Yakin, Cemal Varol Tok
Turkish Journal of Zoology
In this study, age estimation using skeletochronology was done in 43 specimens (6 males, 29 females, 8 juv.) of Anatololacerta anatolica living in the vicinity of Çanakkale. When the cross-sections taken from phalanges were examined, the median age for the Çanakkale population was 4 years. The maximum age was calculated as 10 years for female individuals, and the maximum snout-vent length (SVL) of female individuals was measured as 74.18 mm. The mean SVL was 57.39 (SD = 4.6) mm for males and 63.62 (SD = 8.62) mm for females. The age at sexual maturity was determined as 3 years for …
First Record And A New Species Description Of Dudgeodes (Ephemeroptera: Teloganodidae) From South India, Sankarappan Anbalagan, Chellapandian Balachandran, Mani Kannan, Sundaram Dinakaran, Muthukalingan Krishnan
First Record And A New Species Description Of Dudgeodes (Ephemeroptera: Teloganodidae) From South India, Sankarappan Anbalagan, Chellapandian Balachandran, Mani Kannan, Sundaram Dinakaran, Muthukalingan Krishnan
Turkish Journal of Zoology
Dudgeodes bharathidasani sp. nov. is described from the Western Ghats of South India. The nymphs of this species were found in the seepage areas of a stream, and they were associated with the nets constructed by trichopteran larvae (Hydropsychidae: Hydropsyche).
The Dry Season Shuffle: Gorges Provide Refugia For Animal Communities In Tropical Savannah Ecosystems, J. Sean Doody, Simon Clulow, Geoff Kay, Domenic D'Amore, David Rhind
The Dry Season Shuffle: Gorges Provide Refugia For Animal Communities In Tropical Savannah Ecosystems, J. Sean Doody, Simon Clulow, Geoff Kay, Domenic D'Amore, David Rhind
USF St. Petersburg campus Faculty Publications
In the wet-dry tropics, animal species face the major challenges of acquiring food, water or shelter during an extended dry season. Although large and conspicuous animals such as ungulates and waterfowl migrate to wetter areas during this time, little is known of how smaller and more cryptic animal species with less mobility meet these challenges. We fenced off the entire entrance of a gorge in the Australian tropical savanna, offering the unique opportunity to determine the composition and seasonal movement patterns of the small vertebrate community. The 1.7 km-long fence was converted to a trapline that was deployed for 18-21 …
Clues To Aquatic Beetle Research In Southeast Asia: A Multitude Of Ecological Niches, Microhabitats And Deduced Field Sampling Techniques, Hendrik Freitag
Clues To Aquatic Beetle Research In Southeast Asia: A Multitude Of Ecological Niches, Microhabitats And Deduced Field Sampling Techniques, Hendrik Freitag
Biology Faculty Publications
The basic ecological classification of Southeast Asian beetle families that are associated with aquatic habitats is reviewed. The microhabitat preferences of the taxa are examined on family level with generic examples. Suitable collection methods for quantitative and qualitative sampling are suggested which take into account the different ecological adaptation patterns and microhabitat preferences.
Vertebrate Natural History Notes From Arkansas, 2015, C. Renn Tumlison, M. B. Connior, H. W. Robison, C. T. Mcallister, L. A. Durden, D. Blake Sasse, D. A. Saugey
Vertebrate Natural History Notes From Arkansas, 2015, C. Renn Tumlison, M. B. Connior, H. W. Robison, C. T. Mcallister, L. A. Durden, D. Blake Sasse, D. A. Saugey
Journal of the Arkansas Academy of Science
Many important details of vertebrate biology are unknown to the scientific community because the observations are not part of a larger theoretical study. Yet, knowledge of such details not only fills gaps in understanding but also creates a framework for hypothesis building. We have collected observations of importance that can add to the growth of knowledge. Compiled here are important recent observations representing all vertebrate classes in Arkansas.
A First Overview Of The Fauna Of Chloropidae Of Iran (Diptera, Acalyptratae), Zeinab Bazyar, Abu Fazel Dousti, Michael Von Tschirnhaus, Majid Fallahzadeh
A First Overview Of The Fauna Of Chloropidae Of Iran (Diptera, Acalyptratae), Zeinab Bazyar, Abu Fazel Dousti, Michael Von Tschirnhaus, Majid Fallahzadeh
Turkish Journal of Zoology
We present recent findings of Chloropidae in Iran and a first list of the Iranian species of this family. It includes 20 genera and 50 species (39 identified to species level), recorded up until 2014. Some European distribution records not included in Fauna Europaea are added. The courtship behavior of Polyodaspis sulcicollis is described for the first time.
An Assessment Of South China Tiger Reintroduction Potential In Hupingshan And Houhe National Nature Reserves, China, Yiyuan Qin, Philip J. Nyhus, Courtney L. Larson, Charles J.W. Carroll, Jeff Muntifering, Thomas D. Dahmer, Lu Jun, Ronald L. Tilson
An Assessment Of South China Tiger Reintroduction Potential In Hupingshan And Houhe National Nature Reserves, China, Yiyuan Qin, Philip J. Nyhus, Courtney L. Larson, Charles J.W. Carroll, Jeff Muntifering, Thomas D. Dahmer, Lu Jun, Ronald L. Tilson
Philip J. Nyhus
Human-caused biodiversity loss is a global problem, large carnivores are particularly threatened, and the tiger (Panthera tigris) is among the world’s most endangered large carnivores. The South China tiger (Panthera tigris amoyensis) is the most critically endangered tiger subspecies and is considered functionally extinct in the wild. The government of China has expressed its intent to reintroduce a small population of South China tigers into a portion of their historic range as part of a larger goal to recover wild tiger populations in China. This would be the world’s first major tiger reintroduction program. A free-ranging population of 15–20 tigers …