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Articles 7081 - 7110 of 10523

Full-Text Articles in Zoology

A Serological Investigation Of Pelodytes Caucasicus And Pelobates Syriacus (Amphibia, Anura) Populations In Turkey, Murat Tosunoğlu, Hüseyi̇n Arikan Jan 2007

A Serological Investigation Of Pelodytes Caucasicus And Pelobates Syriacus (Amphibia, Anura) Populations In Turkey, Murat Tosunoğlu, Hüseyi̇n Arikan

Turkish Journal of Zoology

Blood serum proteins of specimens belonging to Pelodytes caucasicus and Pelobates syriacus populations were compared qualitatively and quantitively by means of polyacrylamide disc electrophoresis and densitometry methods. It was determined that the blood serum proteins of both populations demonstrated qualitative and quantitive differences. This result supports the morphological and osteological studies emphasizing the fact that the genus Pelodytes needs to be treated as a separate family (Pelodytidae).


A Preliminary Study Of The Food Of The Dwarf Snake, Eirenis Modestus (Martin, 1838) (Serpentes: Colubridae), In İzmir And Manisa Provinces, Keri̇m Çi̇çek, Ahmet Mermer Jan 2007

A Preliminary Study Of The Food Of The Dwarf Snake, Eirenis Modestus (Martin, 1838) (Serpentes: Colubridae), In İzmir And Manisa Provinces, Keri̇m Çi̇çek, Ahmet Mermer

Turkish Journal of Zoology

The stomach contents of 14 (4 Female Female, 4 Male Male and 6 juveniles) Eirenis modestus specimens captured during various field studies in İzmir and Manisa provinces were examined, and a total of 44 prey items were found. An analysis of the stomach contents revealed that prey belonging to the classes Insecta (75%), Chilopoda (11%), and Reptilia (2%) constituted the diet of the species; the remaining prey could not be identified. The most frequently consumed prey were the orders Coleoptera (32%) and Orthoptera (21%) by number; Coleoptera (36%), Orthoptera (36%), and Scolopendromorpha (29%) by frequency; and Scolopendromorpha (72%) by volume. …


A Preliminary Study On The Population Characteristics Of The Lessepsian Species Pseudonereis Anomala (Polychaeta: Nereididae) In İskenderun Bay (Levantine Sea, Eastern Mediterranean), Meli̇h Ertan Çinar, Cem Altun Jan 2007

A Preliminary Study On The Population Characteristics Of The Lessepsian Species Pseudonereis Anomala (Polychaeta: Nereididae) In İskenderun Bay (Levantine Sea, Eastern Mediterranean), Meli̇h Ertan Çinar, Cem Altun

Turkish Journal of Zoology

The present paper deals with the population structure and biology of Pseudonereis anomala collected from different shallow-water habitats of İskenderun Bay in September 2005. In all, 434 specimens of P. anomala were found in the area. The maximum density and biomass values of the species in the area were 2475 ind. m^{-2} (on Jania rubens) and 7.85 g m^{-2} (among the bivalve Brachidontes pharaonis), respectively. The relationships among the biometrical measurements of the P. anomala specimens were assessed using regression and correlation analyses. The growth of P. anomala seems to be allometric. Among the specimens examined, only one specimen had …


Redescription Of Diacyclops Alticola Kiefer, 1935 (Copepoda, Cyclopoida) From The Pamirs (Tajikistan), Iskandar Mirabdullayev, Nazira Rustamova Jan 2007

Redescription Of Diacyclops Alticola Kiefer, 1935 (Copepoda, Cyclopoida) From The Pamirs (Tajikistan), Iskandar Mirabdullayev, Nazira Rustamova

Turkish Journal of Zoology

Diacyclops alticola, a poorly known cyclopoid, is redescribed on specimens from a shallow pool near Lake Rang-Kul in the Pamirs (Tajikistan) at an altitude of 3700 m. Synonymy of D. alticola Kiefer, 1935 and D. longifurcus Shen et Sung, 1963 is proposed. A key to the species of the genus Diacyclops Kiefer, 1927 in Central Asia is presented.


Comparison Of Skeletal Muscle Protein Bands Among Five Populations Of Bufo Viridis In Turkey By Sds-Page, Ufuk Bülbül, Bi̇lal Kutrup Jan 2007

Comparison Of Skeletal Muscle Protein Bands Among Five Populations Of Bufo Viridis In Turkey By Sds-Page, Ufuk Bülbül, Bi̇lal Kutrup

Turkish Journal of Zoology

Skeletal muscle protein bands of Bufo viridis samples from 5 different populations in Turkey were investigated by SDS-PAGE (Sodium Dodecyl Sulphate-Poly Acrylamide Gel Electrophoresis). The total number of skeletal muscle protein bands was 23 in Hatay, Kayseri, Rize, and Tekirdağ samples, and 25 in the Mersin sample. It can be ascertained from the present study that some populations of B. viridis in Turkey could be different according to skeletal muscle protein bands and SDS-PAGE results comparing different muscle protein bands could be helpful for taxonomical investigations.


Subfamily Phyllostominae Gray, 1825 From Mammals Of South America, Stephen L. Williams, Hugh H. Genoways Jan 2007

Subfamily Phyllostominae Gray, 1825 From Mammals Of South America, Stephen L. Williams, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

The subfamily Phyllostominae is distributed from the southern United States (Arizona, California, and southern Nevada), southward into northern Argentina, Paraguay, and southern Brazil. South American phyllostomines are primarily restricted to the mainland, but also occur on a few major islands off the coast of South America, such as Margarita Island (Venezuela), Trinidad and Tobago, and the Netherlands Antilles, as well as the Greater and Lesser Antilles. The number of genera and species recognized in the subfamily depends on the taxonomic interpretations of the content of the genera Lophostoma, Micronycteris, Mimon, Phyllostomus, and Tonatia. In near agreement with the …


Dietary Sequestration Of Defensive Steroids In Nuchal Glands Of The Asian Snake Rhabdophis Tigrinus, Deborah A. Hutchinson, Akira Mori, Alan H. Savitsky, Gordon M. Burghardt, Xiaogang Wu, Jerrold Meinwald, Frank C, Schroeder Jan 2007

Dietary Sequestration Of Defensive Steroids In Nuchal Glands Of The Asian Snake Rhabdophis Tigrinus, Deborah A. Hutchinson, Akira Mori, Alan H. Savitsky, Gordon M. Burghardt, Xiaogang Wu, Jerrold Meinwald, Frank C, Schroeder

Biological Sciences Faculty Publications

The Asian snake Rhabdophis tigrinus possesses specialized defensive glands on its neck that contain steroidal toxins known as bufadienolides. We hypothesized that R. tigrinus does not synthesize these defensive steroids but instead sequesters the toxins from toads it consumes as prey. To test this hypothesis, we conducted chemical analyses on the glandular fluid from snakes collected in toad-free and toad-present localities. We also performed feeding experiments in which hatchling R. tigrinus were reared on controlled diets that either included or lacked toads. We demonstrate that the cardiotonic steroids in the nuchal glands of R. tigrinus are obtained from dietary toads. …


Recent Observations Of The Distribution Of Woodchucks (Marmota Monax) In Arkansas, C. Renn Tumlison, D. Blake Sasse, Todd Pennington, Nicole Freeman Jan 2007

Recent Observations Of The Distribution Of Woodchucks (Marmota Monax) In Arkansas, C. Renn Tumlison, D. Blake Sasse, Todd Pennington, Nicole Freeman

Journal of the Arkansas Academy of Science

During the last couple of decades, the distribution of the woodchuck (Marmota monax) appeared to be expanding southward in Arkansas (Tumlison et al. 2001). An increase in the frequency of new sightings led us to re-evaluate the present status of this species of squirrel in the state. The woodchuck is not easily confused with other mammals, therefore we sought records of sightings to update information about its distribution. Recent range expansion had been documented in southwestern Arkansas, so we placed notices in stores and advertised in local newspapers in that region to intensively seek new records of sightings from the …


Similar Levels Of X-Linked And Autosomal Nucleotide Variation In African And Non-African Populations Of Drosophila Melanogaster, Nadia D. Singh, J. Michael Macpherson, Jeffrey D. Jensen, Dmitri A. Petrov Jan 2007

Similar Levels Of X-Linked And Autosomal Nucleotide Variation In African And Non-African Populations Of Drosophila Melanogaster, Nadia D. Singh, J. Michael Macpherson, Jeffrey D. Jensen, Dmitri A. Petrov

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Background: Levels of molecular diversity in Drosophila have repeatedly been shown to be higher in ancestral, African populations than in derived, non-African populations. This pattern holds for both coding and noncoding regions for a variety of molecular markers including single nucleotide polymorphisms and microsatellites. Comparisons of X-linked and autosomal diversity have yielded results largely dependent on population of origin.

Results: In an attempt to further elucidate patterns of sequence diversity in Drosophila melanogaster, we studied nucleotide variation at putatively nonfunctional X-linked and autosomal loci in sub-Saharan African and North American strains of D. melanogaster. We combine our experimental …


Status Of Birds Newly Recorded In Arkansas Since 1985, Douglas A. James, Joseph C. Neal, Max Parker, Charles Mills Jan 2007

Status Of Birds Newly Recorded In Arkansas Since 1985, Douglas A. James, Joseph C. Neal, Max Parker, Charles Mills

Journal of the Arkansas Academy of Science

In 1994 we published an annotated list of 14 bird species that were newly discovered in Arkansas since the publication in 1986 of the monograph "Arkansas Birds, Their Distribution and Abundance." We now add 22 more new species found in Arkansas since the 1994 publication, and update the status of the original 14. Adding these 36 species to the number included in "Arkansas Birds" totals 402 bird species currently reported in Arkansas.


Additional Geographic Records For The Goldstripe Darter, Etheostoma Parvipinne (Perciformes: Percidae), From Arkansas, Chris T. Mcallister, Henry W. Robison, C. Renn Tumlison Jan 2007

Additional Geographic Records For The Goldstripe Darter, Etheostoma Parvipinne (Perciformes: Percidae), From Arkansas, Chris T. Mcallister, Henry W. Robison, C. Renn Tumlison

Journal of the Arkansas Academy of Science

No abstract provided.


The Value Of Oil Mallee Plantations And Revegetated Farm Land In The Southern Wheatbelt Region Of Western Australia For The Conservation Of The Western Pygmy Possum (Cercartetus Concinnus), Marie Short Jan 2007

The Value Of Oil Mallee Plantations And Revegetated Farm Land In The Southern Wheatbelt Region Of Western Australia For The Conservation Of The Western Pygmy Possum (Cercartetus Concinnus), Marie Short

Theses : Honours

Revegetation has the potential to enhance conservation of wildlife in rural environments, but few studies have tested whether the proposed benefits are realized. It is important to understand the role played by farm tree plantations in the landscape and how the potential biodiversity benefits may be enhanced without interfering with economic goals (Lamb, 1998). The adoption of oil mallee farming systems across the agricultural zone in south-west Western Australia is resulting in large areas of farmland being planted to native perennial tree species (Smith, 2004). While not planted for their conservation benefit, oil mallee systems may nonetheless enhance biodiversity. The …


Non-Invasive Technique For Assessing The Population Parameters Of Metacercariae Of Clinostomum Marginatum In Smallmouth Bass(Micropterus Dolomieu), James J. Daly Sr., Randal J. Keller, Bruce Deyoung Jan 2007

Non-Invasive Technique For Assessing The Population Parameters Of Metacercariae Of Clinostomum Marginatum In Smallmouth Bass(Micropterus Dolomieu), James J. Daly Sr., Randal J. Keller, Bruce Deyoung

Journal of the Arkansas Academy of Science

Clinostomllm marginatum is a trematode that uses a fish as its final intennediate host. The wonns in the fish are in metacercarial cysts and are known as yellow grub. Yellow grubs give the fish's flesh a wonny, unappetizing appearance and are a problem for commercial fish fanners in that heavily infected fish are not suitable for marketing. The parasite is common in smallmouth bass (Micropterus dolomieu) living in upland streams of Arkansas where the bass may serve as a wild reservoir for contamination of commercial fish ponds. Because smallmouth bass are a prized game fish, it would be desirable to …


Geographic Distribution: Ramphotyphlops Braminus (Brahminy Blindsnake). Usa: Florida: Volusia Co, Louis A. Somma, Paul E. Skelley Jan 2007

Geographic Distribution: Ramphotyphlops Braminus (Brahminy Blindsnake). Usa: Florida: Volusia Co, Louis A. Somma, Paul E. Skelley

Papers in Herpetology

RAMPHOTYPHLOPS BRAMINUS (Brahminy Blindsnake). USA: FLORIDA: VOLUSIA Co.: New Smyrna Beach. 23Septernber 2006. Collected by Stacy Simmons. Verified by Kenneth L. Krysko, Florida Museum ofN atural History, University of Florida. One individual found on floor of residence. UF 151313. First county record. Originally turned in to Division of Plant Industry (DPI) , Florida Department of Agriculture and Consumer Services, Gainesville, Florida, as a "worm for ID" on 27 September 2006; Entomology Log No. 6879. It is not clear if this single specimen indicates an established breeding colony in this county. However, this invasive, parthenogenic exotic is established in other Florida …


Protostrongylid Parasites And Pneumonia In Captive And Wild Thinhorn Sheep (Ovis Dalli), Emily J. Jenkins, A. M. Veitch, Susan J. Kutz, T. K. Bollinger, J. M. Chirino-Trejo, B. T. Elkin, K. H. West, Eric P. Hoberg, L. Polley Jan 2007

Protostrongylid Parasites And Pneumonia In Captive And Wild Thinhorn Sheep (Ovis Dalli), Emily J. Jenkins, A. M. Veitch, Susan J. Kutz, T. K. Bollinger, J. M. Chirino-Trejo, B. T. Elkin, K. H. West, Eric P. Hoberg, L. Polley

Harold W. Manter Laboratory of Parasitology: Faculty Publications

We describe health significance of protostrongylid parasites (Parelaphostrongylus odocoilei and Protostrongylus stilesi) and other respiratory pathogens in more than 50 naturally infected Dall’s sheep (Ovis dalli dalli) from the Mackenzie Mountains, Northwest Territories (1998–2002) as well as in three Stone’s sheep (O. d. stonei) experimentally infected with P. odocoilei (2000–2002). Histological lesions in the brain and distribution of P. odocoilei in the muscles of experimentally and naturally infected sheep were consistent with a previously hypothesized ‘‘central nervous system to muscle’’ pattern of migration for P. odocoilei. Dimensions of granulomas associated with eggs of …


Chlorophacinone Baiting For Belding’S Ground Squirrels, Craig A. Ramey, George H. Matschke, Richard M. Engeman Jan 2007

Chlorophacinone Baiting For Belding’S Ground Squirrels, Craig A. Ramey, George H. Matschke, Richard M. Engeman

United States Department of Agriculture Wildlife Services: Staff Publications

The efficacy of using 0.01% chlorophacinone on steam-rolled oat (SRO) groats applied in CA alfalfa by spot-baiting/hand baiting around burrow entrances (~11.5 g) to control free-ranging Belding's ground squirrels (Spermophilus beldingi) were compared in 6 randomly assigned square treatment units (TUs). Four TUs were given the rodenticide and 2 treated with placebo bait. Each TU was a 0.4 ha square surrounded by a similarly treated 5.5 ha square buffer zone. Baits were applied on May 13 and re-applied, on May 20 and May 22, after 7 days of un-forecasted cool wet weather greatly reduced their above ground activity. Pesticide (EPA …


Review: Birds Of Georgia, Ruth Hayden Jan 2007

Review: Birds Of Georgia, Ruth Hayden

Georgia Library Quarterly

Review of the non-fiction book "Birds of Georgia," by Dr. John W. Parrish, Jr., Giff Beaton, and Gregory Kennedy, with contributions from Chris Fisher and Andy Bezener.


Giant Pandas Balance Energy Budgets With Metabolic Depression: Insights From Radar Detection Of Heart Rates, Tommy Gene Finley Jan 2007

Giant Pandas Balance Energy Budgets With Metabolic Depression: Insights From Radar Detection Of Heart Rates, Tommy Gene Finley

Theses and Dissertations

Giant pandas ( Ailuropoda melanoleuca ) are flagship species for conservation because of their endangered status and charismatic nature. Giant pandas are placed in the bear family (Urisidae) within the order Carnivora. They specialize on a diet of bamboo, yet retain a typical carnivore gastrointestinal tract. Low energy digestive efficiency (9.5–34%) was calculated from bamboo-only digestibility trials conducted on captive giant pandas. Huge amounts of bamboo are consumed to overcome inefficient extraction and thus obtain sufficient energy and nutrients. I designed this study to gain insights into giant panda energy balance by measuring heart rates during sleep, their primary means …


The Role Of Natural And Sexual Selection In The Origin And Maintenance Of Divergence Within And Between The Mexican Sailfin Mollies, Poecilia Velifera And P. Petenensis, Shala Hankison Dec 2006

The Role Of Natural And Sexual Selection In The Origin And Maintenance Of Divergence Within And Between The Mexican Sailfin Mollies, Poecilia Velifera And P. Petenensis, Shala Hankison

All Dissertations

Understanding speciation remains a holy grail of evolutionary biology. One useful approach is studying the evolutionary mechanisms important in population divergence to infer the mechanisms important in speciation. This method is especially useful when closely related species can be compared to determine whether intraspecific differences parallel interspecific differences. I studied population divergence in two species of Mexican sailfin mollies, Poecilia velifera and P. petenensis. These closely related species are particularly useful for this type of study, as they live in habitats that may differ in the importance of natural selection. In addition, these species may differ in the importance …


The Art And Artistic Legacy Of Louis Agassiz Fuertes, Paul A. Johnsgard Dec 2006

The Art And Artistic Legacy Of Louis Agassiz Fuertes, Paul A. Johnsgard

Nebraska Bird Review

Perhaps some Nebraska birders will not immediately recognize the name Louis Agassiz Fuertes, as he died almost 80 years ago. Yet he influenced the art of bird painting as much as did John James Audubon, and provided wonderful artwork for many major state bird reference books. He also personally tutored George Miksch Sutton, the Nebraska-born artist and biologist who provided the NOU with its Burrowing Owl logo, and who contributed greatly to American ornithology, especially that of the southern Great Plains.

It is interesting that, like John James Audubon, Roger Tory Peterson, and George Miksch Sutton, we would never think …


Index To Volume 74 Dec 2006

Index To Volume 74

Nebraska Bird Review

Index to Volume 74 (11 pages)

Abraham, K. 105

Accipiter sp 28-29, 65

Allmand, Matt 40

American Ornithologists' Union 38, 105, 132-133

Amiotte, Sue 4I, 112

Anhinga 71

Ankney, C. D. 105

Armknecht, Henry 25, 40

Aubushon,
Dottie 25
Kathy 25

Audubon. lohn lames 132-133, 136

Austin, J. E. 97

Avocet, American 48,84, 11 7, 142

....

Yellowlegs,
Greater 48, 85, 117
Lesser 48, 66, 85, 117, 129

Yellowthroat, Common 57,68,92, 125, 131, 142

Vi, Chunhui 25

Young, Betty 25

Zahurones, Penny 25

Ziewitz. J. W. 98


Lincoln Fall Field Days Dec 2006

Lincoln Fall Field Days

Nebraska Bird Review

The 2006 NOU Fall Field Days were held in and around Lincoln on Sept. 15-17. Our evening meals and programs took place at the Howard Johnson's Motel on Cornhusker Highway,

Our Friday evening speaker was Dr. Paul Johnsgard, who spoke about the Birding Trails website being developed by a committee of the All Bird Consortium, On Saturday afternoon, NOU Librarian Mary Lou Pritchard gave a tour of the current exhibit of her late husband Bud Pritchard's artwork at the Nebraska State Museum in Morrill Hall. Saturday evening Dan Kim spoke on the Whooping Crane Trust activities along the Platte River …


Masthead From Nebraska Bird Review December 2006 Dec 2006

Masthead From Nebraska Bird Review December 2006

Nebraska Bird Review

The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $15 in the United States, $18 in Canada and $30 in all other countries, payable in advance. Single copies are $4 each, postpaid, in the United States, $5 in Canada, and $8 elsewhere. Send orders for back issues to Mary Lou Pritchard, NOU Librarian, c/o University of Nebraska State Museum, W-436 Nebraska Hall, Lincoln, NE 685880514.

Memberships in the NOU (on a calendar-year basis only): …


The 2006 Nebraska Nest Report, Wayne Mollhoff Dec 2006

The 2006 Nebraska Nest Report, Wayne Mollhoff

Nebraska Bird Review

The drought that began in 1999 continued over most of Nebraska this year, with 7 of the past 8 years receiving lower than normal rainfall. More normal rains fell in April and early May, especially in the central and east, before stopping for most of the summer. Most of the Panhandle and southwest were declared drought disaster areas by early summer, setting the stage in late July for the worst fire season in memory in the Pine Ridge area of the northern Panhandle (Fowler, 2007). Ultimately, 83 of 93 counties were declared part of the drought disaster area. Low water …


Fall Field Report, August-November 2006, W. Ross Silcock Dec 2006

Fall Field Report, August-November 2006, W. Ross Silcock

Nebraska Bird Review

First, I want to say how much I appreciate observers' responses to my requests for additional details on various sightings, not just rarities, but early and late dates. It's important to have these details for the archives to help future readers and researchers feel more comfortable with records from our era.

Patterns that were apparent included a generally quiet fall for waterfowl (they were all at Lake McConaughy), but excellent numbers of the rarer two scoters (but NO White-winged!) and a surprising 16 Red-necked Grebes. On the other hand, numbers of staging Western Grebes were down significantly, apparently due to …


The Nebraska Bird Review Whole Issue December 2006 Dec 2006

The Nebraska Bird Review Whole Issue December 2006

Nebraska Bird Review

Table of Contents

Fall Field Report, Aug.–Nov. 2006 by W. Ross Silcock....................... 110

Fall Field Days at Lincoln, Sept. 15–17, 2006....................... 128

The Art and Artistic Legacy of Louis Agassiz Fuertes by Paul A. Johnsgard ....................... 132

The 2006 Nebraska Nest Report by Wayne J. Mollhoff ....................... 142

Index to Volume 74....................... 148

Subscription and Organization Information....................... 159


Evaluating Diet Composition Of Pronghorn In Wind Cave National Park, South Dakota, Christopher N. Jacques, Jaret D. Sievers, Jonathan A. Jenks, Chad L. Sexton, Daniel E. Roddy Dec 2006

Evaluating Diet Composition Of Pronghorn In Wind Cave National Park, South Dakota, Christopher N. Jacques, Jaret D. Sievers, Jonathan A. Jenks, Chad L. Sexton, Daniel E. Roddy

The Prairie Naturalist

The pronghorn (Antilocapra americana) was reintroduced into Wind Cave National Park (WCNP), South Dakota, in 1914, and thus, has inhabited the Park for nearly a century. During the 1990's, a decline in the population raised concern for the continued existence of pronghorn inside WCNP; an investigation into the observed decline was initiated. Primary objectives of our study were to evaluate diet composition and forage selection by pronghorn in WCNP. Microhistological analysis was conducted on 58 fecal samples collected opportunistically from pronghorn during 2002. Blue grama (Bouteloua gracilis), common juniper (Juniperus communis), and northern bedstraw …


Morphometrics Of Six Turtle Species From South Dakota, Sarah J. Bandas, Kenneth F. Higgins Dec 2006

Morphometrics Of Six Turtle Species From South Dakota, Sarah J. Bandas, Kenneth F. Higgins

The Prairie Naturalist

During 2002 and 2003, morphometric measurements were recorded for 755 turtles representing six species in South Dakota. Turtles were captured in a wide variety of wetland habitats across the entire state. With few exceptions, morphometric measurements for South Dakota were near or within the range of measurements reported for all six species from studies in nearby states or provinces. We recommend that morphometric measurements be taken on turtles in future turtle studies and particularly for the less common and rare species.


Winter Behavior Of Big Brown Bats (Eptesicus Fuscus) In A Building Roost: Intermittent Feeding, Passive Rewarming, And Energy Conservation, Amy L. Fairbairn Dec 2006

Winter Behavior Of Big Brown Bats (Eptesicus Fuscus) In A Building Roost: Intermittent Feeding, Passive Rewarming, And Energy Conservation, Amy L. Fairbairn

All-Inclusive List of Electronic Theses and Dissertations

I investigated the use of torpor and arousals during winter of 2005 - 2006 by freeliving big brown bats (Eptesicus fuscus) by measuring skin temperature (remotely using data loggers) and used those measurements to estimate winter energy expenditure. Torpor bouts lasted for a mean of 3 .3 days ( d) with a mean of 3 .6 d and 2.2 d for males and females, respectively. There was no correlation between ambient temperature (Ta) during torpor and torpor bout length, but there was a significant correlation between Ta and length of the active period. Arousals lasted on average 5.0 hours (h). …


Karyotypes Of Eight Species Of Leptodactylus (Anura, Leptodactylidae) With A Description Of A New Karyotype For The Genus, Renata Cecília Amaro-Ghilardi, Gabriel Skuk, Rafael O. De Sá, Miguel Trefaut Rodrigues, Yatiyo Yonenaga-Yassuda Dec 2006

Karyotypes Of Eight Species Of Leptodactylus (Anura, Leptodactylidae) With A Description Of A New Karyotype For The Genus, Renata Cecília Amaro-Ghilardi, Gabriel Skuk, Rafael O. De Sá, Miguel Trefaut Rodrigues, Yatiyo Yonenaga-Yassuda

Biology Faculty Publications

Karyotypes of eight species of Leptodactylus (Anura, Leptodactylidae) with a description of a new karyotype for the genus. Eight species of the Neotropical genus Leptodactylus were karyologically studied: seven of them (L. gracilis, L. mystacinus, L. petersii, L. pustulatus, L. macrosternum, L. ocellatus, L. labyrinthicus) presented 2n=22 and L. silvanimbus showed a distinctive karyotype with 2n=24. Nucleolar organizer regions (Ag-NORs) were detected in two different pairs of chromosomes: pair 4 at the proximal region of the long arm of one individual of L. mystacinus from São Paulo state and of L. petersii; and …