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- <em>Tachycineta bicolor</em> (1)
- <em>Tachycineta bicolor</em> (1)
- <em>Tachycineta bicolor</em> (1)
- <em>Tachycineta bicolor</em> (1)
- <em>Passer domesticus</em> (1)
- 4 - Evolutionary Biology & Paleontology (1)
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Articles 1 - 30 of 31
Full-Text Articles in Animal Sciences
The First Hypogean Dipluran From Portugal: Description Of A New Species Of The Genus Litocampa (Diplura: Campodeidae), Ana Reboleira, Alberto Sendra, Fernando Gonçalves, Pedro Oromí
The First Hypogean Dipluran From Portugal: Description Of A New Species Of The Genus Litocampa (Diplura: Campodeidae), Ana Reboleira, Alberto Sendra, Fernando Gonçalves, Pedro Oromí
Ana Sofia P.S. Reboleira
A new species of subterranean Campodeid Dipluran of the genus Litocampa mendesi n. sp. is described. Despite the presence of this genus in Spain, this is the first record in Portugal, and it is also the first Portuguese species of hypogean Diplura. The new species combines unique characters absent in the European and American species of the genus. Litocampa mendesi n. sp. was collected only in one part of a cave of the Jurassic karstic massif of Algarve, the southwesternmost part of the Iberian Peninsula. The morphological features of this species show some adaptations to hypogean life but not a …
Molecular Cloning And Characterization Of The Porcine Fto Promoter And Coding Regions.Pdf, Jinming Huang, Yunzhou Yang, Gang Liu, Jibin Zhang, Xinxing Dong, Ying Bai, Meiying Fang
Molecular Cloning And Characterization Of The Porcine Fto Promoter And Coding Regions.Pdf, Jinming Huang, Yunzhou Yang, Gang Liu, Jibin Zhang, Xinxing Dong, Ying Bai, Meiying Fang
Jibin Zhang
Evaluation Of Harassment Of Migrating Double-Crested Cormorants To Limit Depredation On Selected Sport Fisheries In Michigan, Brian S. Dorr, Ashley Moerke, Michael Bur, Chuck Bassett, Tony Aderman, Dan Traynor, Russell D. Singleton, Peter H. Butchko, Jimmy D. Taylor
Evaluation Of Harassment Of Migrating Double-Crested Cormorants To Limit Depredation On Selected Sport Fisheries In Michigan, Brian S. Dorr, Ashley Moerke, Michael Bur, Chuck Bassett, Tony Aderman, Dan Traynor, Russell D. Singleton, Peter H. Butchko, Jimmy D. Taylor
Brian S Dorr
No abstract provided.
A Hypogean New Species Of Trechus Clairville, 1806 (Coleoptera, Carabidae) From Portugal And Considerations About The T. Fulvus Species Group, Ana Reboleira, Vicente Ortuño, Fernando Gonçalves, Pedro Oromí
A Hypogean New Species Of Trechus Clairville, 1806 (Coleoptera, Carabidae) From Portugal And Considerations About The T. Fulvus Species Group, Ana Reboleira, Vicente Ortuño, Fernando Gonçalves, Pedro Oromí
Ana Sofia P.S. Reboleira
A new hypogean ground beetle species, Trechus tatai n. sp. from the Montejunto karstic massif in Portugal is described. Morphological diagnostic characters of the imago are provided and the new species is included in the Trechus fulvus-group. Comments on the biogeography of hypogean carabid beetles in karstic areas of Portugal and an illustrated key to the males of the T. fulvus-group in the Iberian Peninsula are also included.
Laboratory Studies In Integrated Principles Of Zoology, Lee Kats, Cleveland Hickman, Susan Keen
Laboratory Studies In Integrated Principles Of Zoology, Lee Kats, Cleveland Hickman, Susan Keen
Lee Kats
The 15th Edition of Laboratory Studies in Integrated Principles of Zoology uses a comprehensive, phylogenetic approach in emphasizing basic biological principles, animal form and function, and evolutionary concepts. This introductory lab manual is ideal for a one- or two-semester course. The new edition expertly combines up-to-date coverage with the clear writing style and dissection guides that have distinguished this manual from edition to edition.
Effect Of Feathers As Nest Insulation On Incubation Behavior And Reproductive Performance Of Tree Swallows (Tachycineta Bicolor), Michael Lombardo, Ruth Bosman, Christine Faro, Stephen Houtteman, Timothy Kluisza
Effect Of Feathers As Nest Insulation On Incubation Behavior And Reproductive Performance Of Tree Swallows (Tachycineta Bicolor), Michael Lombardo, Ruth Bosman, Christine Faro, Stephen Houtteman, Timothy Kluisza
Michael P Lombardo
Many species of birds line their nests with feathers, presumably because of the insulative qualities of feathers and because feathers may act as a barrier between nest parasites and nestlings. In 1993, we experimentally examined the role of feathers as nest insulation on the incubation behavior, nestling growth, and reproductive performance of Tree Swallows (Tachycineta bicolor) nesting in boxes in western Michigan. There were no significant differences between the incubation rhythms of females with experimental nests (i.e. no feathers) and females with control nests (i.e. with feathers). Nestlings that were reared in control nests had significantly longer right tarsi and …
Repeated Sampling Affects Tree Swallow Semen Characteristics, Michael Lombardo, M.L. Green, P.A. Thorpe, M.R. Czarnowski, H.W. Power
Repeated Sampling Affects Tree Swallow Semen Characteristics, Michael Lombardo, M.L. Green, P.A. Thorpe, M.R. Czarnowski, H.W. Power
Michael P Lombardo
Male Tree Swallows (Tachycineta bicolor) face intense sperm competition because mated pairs copulate frequently, extra-pair copulations are common, and females store sperm. We examined the effects of repeated sampling on the characteristics of Tree Swallow semen by manually expressing semen from 15 males immediately after capture (T0) and then hourly for 4 h (T1-T4). The semen characteristics of individual males varied in response to repeated sampling. The total number of sperm cells we obtained from each male over the 4-h sampling period varied from 104-107. Semen samples lacking …
Communities Of Cloacal Bacteria In Tree Swallow Families, Michael Lombardo, Patrick Thorpe, R. Cichewicz, M. Henshaw, C. Millard, C. Steen, T. Zeller
Communities Of Cloacal Bacteria In Tree Swallow Families, Michael Lombardo, Patrick Thorpe, R. Cichewicz, M. Henshaw, C. Millard, C. Steen, T. Zeller
Michael P Lombardo
Our aim in this study was to survey the communities of bacteria found in the cloacae of adult and nestling Tree Swallows (Tachycineta bicolor), determine if there were familial patterns of prevalence, and determine if there were relationships between bacteria loads and nestling size when 12 days old and fledging success.
Left-Sided Directional Bias Of Cloacal Contacts During House Sparrow Copulations, Karen Nyland, Michael Lombardo, Patrick Thorpe
Left-Sided Directional Bias Of Cloacal Contacts During House Sparrow Copulations, Karen Nyland, Michael Lombardo, Patrick Thorpe
Michael P Lombardo
Most female birds have only a left ovary and associated oviduct. The entry to the oviduct is on the left side of the urodeum of the cloaca. This arrangement may favor males that mount females from the left during copulation if it results in sperm being placed closer to the opening of the oviduct. Therefore, we predicted a left-sided directional bias of cloacal contacts during House Sparrow (Passer domesticus) copulations. Cloacal contacts from the left outnumbered those from the right 74 to 25 (3:1) during 25 bouts of copulation at 11 House Sparrow nests. While this pattern suggests that a …
Homosexual Copulations By Male Tree Swallows, Michael P. Lombardo, Ruth M. Bosman, Christine A. Faro, Stephen G. Houtteman, Timothy S. Kluisza
Homosexual Copulations By Male Tree Swallows, Michael P. Lombardo, Ruth M. Bosman, Christine A. Faro, Stephen G. Houtteman, Timothy S. Kluisza
Michael P Lombardo
Homosexual courtship behavior in non-human animals is well known (Ford and Beach 1980) and occurs in a wide variety of taxa. However, homosexual copulations, especially between males, are less well known. In birds, males mounting other males have been observed in the colonially breeding Cattle Egret (Bubulcus ibis) (Fujioka and Yamagishi 1981) and Common Murre (Uria aalge) (Birkhead et al. 1985, Hatchwell 1988). Neither Fujioka and Yamagishi (1981) nor Birkhead et al. (1985) and Hatchwell (1988) reported whether cloacal contact occurred during their observations of male-male mountings. Here we describe homosexual copulations by male Tree Swallows …
Individual, Temporal, And Seasonal Variation In Sperm Concentration In Tree Swallows, Michael Lombardo, Armetris Forman, Matthew Czarnowski, Patrick Thorpe
Individual, Temporal, And Seasonal Variation In Sperm Concentration In Tree Swallows, Michael Lombardo, Armetris Forman, Matthew Czarnowski, Patrick Thorpe
Michael P Lombardo
We determined sperm concentrations in Tree Swallows (Tachycineta bicolor) by manually expressing semen samples from males during prelaying, egg-laying, incubation, and nestling periods. Sperm concentrations varied by orders of magnitude (0-109 sperm mL-1) among males. Sperm concentrations were highest during the incubation period and lowest during the prelaying period. None of the samples collected during the prelaying, egg-laying, and incubation periods were devoid of sperm. In contrast, 45% of samples collected during the nestling period lacked sperm. Sperm concentrations (1) did not vary over the course of the morning during prelaying, egg-laying, and incubation periods but significantly increased during the …
Microbial Colonization Of The Cloacae Of Nestling Tree Swallows, Tamara Mills, Michael Lombardo, Patrick Thorpe
Microbial Colonization Of The Cloacae Of Nestling Tree Swallows, Tamara Mills, Michael Lombardo, Patrick Thorpe
Michael P Lombardo
Microbes have the potential to be important selective forces in many aspects of avian biology. Microbes can affect fitness as a result of either their pathogenic or beneficial effects on host health. Little is known about the chronology of microbial colonization of nestlings or the effects of microbes on fledgling condition. We set out to (1) characterize the time course of microbial colonization of the cloacae of nestling Tree Swallows (Tachycineta bicolor), (2) examine the relationship between cloacal microbes and fledgling condition, and (3) determine if nest mates had similar assemblages of cloacal microbes. We repeatedly measured nestlings and sampled …
Within-Pair Copulations: Are Female Tree Swallows Feathering Their Own Nests?, Michael Lombardo
Within-Pair Copulations: Are Female Tree Swallows Feathering Their Own Nests?, Michael Lombardo
Michael P Lombardo
A variety of hypotheses has been proposed to explain why socially monogamous birds copulate repeatedly with their mates when only a single copulation is necessary to fertilize an entire clutch (Birkhead and Møller 1992, Petrie 1992, Hunter et al. 1993). Petrie (1992) hypothesized that a female should copulate frequently with her mate so as to reduce her mate’s involvement in extrapair copulations. By reducing her mate’s involvement in extrapair copulations, a female may: (1) avoid the transmission of parasites and sexually transmitted diseases (Hamilton 1990); (2) may avoid sperm depletion by her mate; and (3) may monopolize her mate’s paternal …
On The Evolution Of Sexually Transmitted Diseases In Birds, Michael Lombardo
On The Evolution Of Sexually Transmitted Diseases In Birds, Michael Lombardo
Michael P Lombardo
"The definitive version is available at www.blackwell-synergy.com".
Sexually transmitted diseases (STDs) in animals are caused by pathogens that are transmitted during copulation. Birds have played an important role in the development of STD-centered theories of mating behavior. However, it is not known whether STDs exist in wild bird populations. While the avian cloaca with its dual functions of gamete transfer and excretion seemingly predisposes birds for the evolution of STDs, the life history patterns of most birds (i.e., seasonal breeders with relatively brief annual periods of sexual activity) suggest otherwise. The importance of STDs as selective forces that shape host …
Left-Sided Directional Bias Of Cloacal Contacts During Tree Swallow Copulations, Aaron Petersen, Michael Lombardo, Harry Power
Left-Sided Directional Bias Of Cloacal Contacts During Tree Swallow Copulations, Aaron Petersen, Michael Lombardo, Harry Power
Michael P Lombardo
Most female birds have only a left ovary and associated oviduct with entry to the oviduct on the left side of the urodeum of the cloaca. We hypothesized that male cloacal contacts during copulation would occur from the left side of females because this would put sperm closer to the entrance of the oviduct. We observed that cloacal contacts from the left outnumbered those from the right by a margin of 3:1 during tree swallow, Tachycineta bicolor, copulations at nestboxes in western Michigan in 1999. The directional bias of cloacal contacts may have an adaptive function.
The Beneficial Sexually Transmitted Microbe Hypothesis Of Avian Copulation, Michael Lombardo, Patrick Thorpe, Harry Power
The Beneficial Sexually Transmitted Microbe Hypothesis Of Avian Copulation, Michael Lombardo, Patrick Thorpe, Harry Power
Michael P Lombardo
Several hypotheses have been proposed to explain why female birds either copulate repeatedly with a single mate or copulate with multiple partners even though only a single copulation may be sufficient to fertilize an entire clutch. We hypothesize that females may directly benefit from high frequencies of copulation and multiple copulation partners if they receive a cloacal inoculation of beneficial sexually transmitted microbes (STMs) that can either protect them against future encounters with pathogens and/or serve as therapy against present infections. Experiments in domestic animal production, wildlife rehabilitation, and clinical medicine indicate that inoculations of beneficial microbes derived from the …
Marine Natural Products, The Halogenated 1'-Methyl-1,2'-Bipyrroles, Biomagnify In A Northwestern Atlantic Food Web., Kristin C. Pangallo, Christopher M. Reddy
Marine Natural Products, The Halogenated 1'-Methyl-1,2'-Bipyrroles, Biomagnify In A Northwestern Atlantic Food Web., Kristin C. Pangallo, Christopher M. Reddy
Kristin Pangallo
Description Of The Third Instar Larva Of A Hypogean Ground Beetle, Trechus Alicantinus (Coleoptera: Carabidae: Trechinae), Vicente Ortuño, Ana Reboleira
Description Of The Third Instar Larva Of A Hypogean Ground Beetle, Trechus Alicantinus (Coleoptera: Carabidae: Trechinae), Vicente Ortuño, Ana Reboleira
Ana Sofia P.S. Reboleira
Description and illustrations are provided for the third instar larva of Trechus alicantinus Español, 1971 obtained from a laboratory breeding. This paper aims to contribute to increase the general knowledge about microendemic hypogean species of the east of the Iberian Peninsula. Besides, it expands the existing knowledge about the preimaginal stages of the genus Trechus and the whole tribe Trechini (Coleoptera, Carabidae). Larvae can give additional information about the life style of the species. Larvae can also express, even more than the imagos, some apomorphic characters, traditionally considered a result of adaptation to the hypogean habitat, such as the regression …
Seasonal Body Temperature Fluctuations And Energetic Strategies In Free-Ranging Eastern Woodchucks, Carmen M. Salsbury
Seasonal Body Temperature Fluctuations And Energetic Strategies In Free-Ranging Eastern Woodchucks, Carmen M. Salsbury
Carmen M. Salsbury
During a 2-year period, radiotelemetry was used to continuously monitor body temperature ( T b) of free-ranging woodchucks (Marmota monax) in southeastern Pennsylvania. Hibernation was preceded by daily T b fluctuations ("test drops") of 2-4°C. During hibernation, woodchucks exhibited the characteristic pattern of torpor bouts. Time of arousals occurred randomly, but onset of torpor occurred predominantly between 1800 and 0000 h. Males had shorter hibernation periods (mean of 104.8 days) than did females (121.8 days). Males had shorter torpor bouts, but euthermic bouts were the same length as in females. Males also maintained higher T b during torpor. Overall, the …
The Distribution Of Fox Squirrel (Sciurus Niger) Leaf Nests Within Forest Fragments In Central Indiana, Carmen M. Salsbury, Rebecca W. Dolan, Emily B. Pentzer
The Distribution Of Fox Squirrel (Sciurus Niger) Leaf Nests Within Forest Fragments In Central Indiana, Carmen M. Salsbury, Rebecca W. Dolan, Emily B. Pentzer
Rebecca W. Dolan
We examined the abundance and placement of leaf nests by fox squirrels in six urban woodlots in central Indiana ranging in size from 1.06 to 8.28 ha. Four of the woodlots were disturbed, or subject to extensive human impact, whereas the remaining two were nature preserves. We counted all leaf nests present in each woodlot and recorded nest tree characteristics. We then conducted a quantitative vegetation analysis of trees present and estimated percentages of herbaceous and shrub cover along a minimum of two 100 m transects at each site. Fox squirrels showed a preference to build nests in certain species …
The Distribution Of Fox Squirrel (Sciurus Niger) Leaf Nests Within Forest Fragments In Central Indiana, Carmen M. Salsbury, Rebecca W. Dolan, Emily B. Pentzer
The Distribution Of Fox Squirrel (Sciurus Niger) Leaf Nests Within Forest Fragments In Central Indiana, Carmen M. Salsbury, Rebecca W. Dolan, Emily B. Pentzer
Carmen M. Salsbury
We examined the abundance and placement of leaf nests by fox squirrels in six urban woodlots in central Indiana ranging in size from 1.06 to 8.28 ha. Four of the woodlots were disturbed, or subject to extensive human impact, whereas the remaining two were nature preserves. We counted all leaf nests present in each woodlot and recorded nest tree characteristics. We then conducted a quantitative vegetation analysis of trees present and estimated percentages of herbaceous and shrub cover along a minimum of two 100 m transects at each site. Fox squirrels showed a preference to build nests in certain species …
Sexual Size Dimorphism (Ssd) Is The Most Consistent Explanation For The Body Size Spectrum Of Confuciusornis Sanctus, Winfried S. Peters, Dieter Stefan Peters
Sexual Size Dimorphism (Ssd) Is The Most Consistent Explanation For The Body Size Spectrum Of Confuciusornis Sanctus, Winfried S. Peters, Dieter Stefan Peters
Winfried S. Peters
Descriptive Ecology Of A Turtle Assemblage In An Urban Landscape, Conner C. A, B A. Douthitt, Travis J. Ryan
Descriptive Ecology Of A Turtle Assemblage In An Urban Landscape, Conner C. A, B A. Douthitt, Travis J. Ryan
Travis J. Ryan
We studied turtle populations inhabiting a canal and a lake (both man-made) within a heavily disturbed, urban setting. Six aquatic and semi-aquatic turtle species were collected in both habitats: spiny softshell turtle (Apolone spinifera), painted turtle (Chrysemys picta), common snapping turtle (Chelydra serpentina), common map turtle (Graptemys geographica), common musk turtle (Sternotherus odoratus) and red-eared slider (Trachemys scripta). While G. geographica was the most common species in the canal habitat, T. scripta was most common in the lake habitat. We describe patterns of sexual size dimorphism and sex ratios for the three most abundant species (G. geographica, T. scripta and …
Movement And Habitat Use Of Two Aquatic Turtles (Graptemys Geographic And Trachemys Scripta) In An Urban Landscape, Travis J. Ryan, C A. Conner, B A. Douthitt, S C. Sterrett, Carmen M. Salsbury
Movement And Habitat Use Of Two Aquatic Turtles (Graptemys Geographic And Trachemys Scripta) In An Urban Landscape, Travis J. Ryan, C A. Conner, B A. Douthitt, S C. Sterrett, Carmen M. Salsbury
Carmen M. Salsbury
Our study focuses on the spatial ecology and seasonal habitat use of two aquatic turtles in order to understand the manner in which upland habitat use by humans shapes the aquatic activity, movement, and habitat selection of these species in an urban setting. We used radiotelemetry to follow 15 female Graptemys geographica (common map turtle) and each of ten male and female Trachemys scripta (red-eared slider) living in a man-made canal within a highly urbanized region of Indianapolis, IN, USA. During the active season (between May and September) of 2002, we located 33 of the 35 individuals a total of …
Movement And Habitat Use Of Two Aquatic Turtles (Graptemys Geographic And Trachemys Scripta) In An Urban Landscape, Travis J. Ryan, C A. Conner, B A. Douthitt, S C. Sterrett, Carmen M. Salsbury
Movement And Habitat Use Of Two Aquatic Turtles (Graptemys Geographic And Trachemys Scripta) In An Urban Landscape, Travis J. Ryan, C A. Conner, B A. Douthitt, S C. Sterrett, Carmen M. Salsbury
Travis J. Ryan
Our study focuses on the spatial ecology and seasonal habitat use of two aquatic turtles in order to understand the manner in which upland habitat use by humans shapes the aquatic activity, movement, and habitat selection of these species in an urban setting. We used radiotelemetry to follow 15 female Graptemys geographica (common map turtle) and each of ten male and female Trachemys scripta (red-eared slider) living in a man-made canal within a highly urbanized region of Indianapolis, IN, USA. During the active season (between May and September) of 2002, we located 33 of the 35 individuals a total of …
Movement And Habitat Use Of Two Aquatic Turtles (Graptemys Geographica And Trachemys Scripta) In An Urban Landscape, Travis J. Ryan, Christopher A. Conner, Brooke A. Douthitt, Sean C. Sterrett, Carmen M. Salsbury
Movement And Habitat Use Of Two Aquatic Turtles (Graptemys Geographica And Trachemys Scripta) In An Urban Landscape, Travis J. Ryan, Christopher A. Conner, Brooke A. Douthitt, Sean C. Sterrett, Carmen M. Salsbury
Carmen M. Salsbury
Our study focuses on the spatial ecology and seasonal habitat use of two aquatic turtles in order to understand the manner in which upland habitat use by humans shapes the aquatic activity, movement, and habitat selection of these species in an urban setting. We used radiotelemetry to follow 15 female Graptemys geographica (common map turtle) and each of ten male and female Trachemys scripta (red-eared slider) living in a man-made canal within a highly urbanized region of Indianapolis, IN, USA. During the active season (between May and September) of 2002, we located 33 of the 35 individuals a total of …
Reproductive Energetics Of Adult Male Yellow- Bellied Marmots (Marmota Flaviventris), Carmen M. Salsbury, K. B. Armitage
Reproductive Energetics Of Adult Male Yellow- Bellied Marmots (Marmota Flaviventris), Carmen M. Salsbury, K. B. Armitage
Carmen M. Salsbury
We examined the energy expenditure of adult male yellow-bellied marmots and its relationship to various female-defense characteristics critical to male reproductive success. Resting metabolic rates of males were estimated in the laboratory via oxygen-consumption analysis, and field metabolic rates were estimated using a doubly Labeled water technique. Male home-range size, number of females defended by males, dispersion of females in the habitat, and date into the active season were considered to be predictors of male energy expenditure in excess of maintenance costs (field metabolic rate minus resting metabolic rate). Energy expenditure was best explained by a defensibility index based on …
Management Effects On Breeding And Foraging Numbers And Movements Of Double-Crested Cormorants In The Les Cheneaux Islands, Lake Huron, Michigan, Brian S. Dorr, Tony Aderman, Peter H. Butchko
Management Effects On Breeding And Foraging Numbers And Movements Of Double-Crested Cormorants In The Les Cheneaux Islands, Lake Huron, Michigan, Brian S. Dorr, Tony Aderman, Peter H. Butchko
Brian S Dorr
No abstract provided.
Effects Of Vermicomposting Duration To Macronutrient Elements And Heavy Metals Concentrations In Vermicompost, Adi Ainurzaman Jamaludin, Noor Zalina Mahmood
Effects Of Vermicomposting Duration To Macronutrient Elements And Heavy Metals Concentrations In Vermicompost, Adi Ainurzaman Jamaludin, Noor Zalina Mahmood
Adi Ainurzaman Jamaludin
Vermicomposting using Lumbricus rubellus was conducted in two different durations, 10 and 30 weeks in the same plots. Three different of treatments combination were prepared with eight replicates for each treatment namely cow dung : kitchen waste in 30:70 ratio (T1), cow dung : coffee grounds in 30:70 ratio (T2), and cow dung : kitchen waste : coffee grounds in 30:35:35 ratio (T3). Macronutrients elements in the vermicompost from each treatment were measured in the tenth and thirtieth week. Comparatively longer duration of vermicomposting by using Lumbricus rubellus enhanced the quality of vermicompost by the increase of the macronutrient elements …
3hsds1和17hsds7基因5'上游区转录活性研究.Pdf, Xinxing Dong, Yi Xin, Ying Bai, Yunzhou Yang, Jibin Zhang, Meiying Fang, Gang Chen