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Beobachtungen Zu Unterscheidungsmerkmalen An Equidenschädeln, Speziell Zwischen Denen Von Mongolischen Dschiggetai Und Pferden, Roland Müller, Joachim Wussow 2010 Martin-Luther-Universität

Beobachtungen Zu Unterscheidungsmerkmalen An Equidenschädeln, Speziell Zwischen Denen Von Mongolischen Dschiggetai Und Pferden, Roland Müller, Joachim Wussow

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

First paragraph:

Von STUBBE et.al. wurden zwischen 2001 und 2004 in der Südmongolei ca. 400 Schädel des Dschiggetai (Equus hemionus hemionus) gesammelt.


Temporal Dynamics Of Group Size And Sexual Segregation In Ibex, N. J. Singh, S. Amgalanbaatar, Richard P. Reading 2010 Imperial College London

Temporal Dynamics Of Group Size And Sexual Segregation In Ibex, N. J. Singh, S. Amgalanbaatar, Richard P. Reading

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Group size is an important variable describing behavioral ecology of animals. A variety of factors such as habitat characteristics, life history, spatio-temporal resource dynamics, population density, predation risk, competition with kin, and social learning often determine group size in large mammals. We studied temporal dynamics of group size in Siberian ibex (Capra sibirica) in a protected area in Mongolia. We measured monthly and yearly variations in typical group size and used the sexual segregation and aggregation statistic to assess sexual segregation. Ibex formed the largest groups in November and smallest groups in July. However, group sizes did not significantly differ ...


A Review Of The Blaesiina (Coleoptera, Scarabaeidae, Cetoniinae, Gymnetini), Brett C. Ratcliffe 2010 University of Nebraska-Lincoln

A Review Of The Blaesiina (Coleoptera, Scarabaeidae, Cetoniinae, Gymnetini), Brett C. Ratcliffe

Papers in Entomology

The two genera comprising the subtribe Blaesiina (Scarabaeidae: Cetoniinae: Gymnetini) are reviewed. Each genus contains two species, with Blaesia Burmeister occurring in southern South America and Halffterinetis Morón & Nogueira occurring in northern Mexico. Descriptions, keys, distributions, biology, and illustrations are provided. The biogeography of the Blaesiina is discussed with a hypothesis to explain the current disjunct distributions. I provide a new state record for Halffterinetis gonzaloi Morón & Nogueira in San Luis Potosí, Mexico.


Synopsis Of The Aroid Scarabs In The Genus Peltonotus Burmeister (Scarabaeidae, Dynastinae, Cyclocephalini) From Sumatra And Description Of A New Species, Mary Liz Jameson, Stanislav Jakl 2010 Wichita State University

Synopsis Of The Aroid Scarabs In The Genus Peltonotus Burmeister (Scarabaeidae, Dynastinae, Cyclocephalini) From Sumatra And Description Of A New Species, Mary Liz Jameson, Stanislav Jakl

Papers in Entomology

We provide a synopsis of the Sumatran species in the scarab beetle genus Peltonotus Burmeister (Scarabaeidae: Dynastinae: Cyclocephalini), describe a new species of Peltonotus from Sumatra, and describe the male of P. cybele Jameson & Wada from Sumatra (previously known only by the female holotype). To enable identification, we include a key to the five Sumatran species of Peltonotus, comparative images and diagnoses for all species, and temporal and geographical distributions.


A Revision Of The Argentinean Endemic Genus Eucranium Brullé (Coleoptera: Scarabaeidae: Scarabaeinae) With Description Of One New Species And New Synonymies, Federico C. Ocampo 2010 CCT-CONICET Mendoza

A Revision Of The Argentinean Endemic Genus Eucranium Brullé (Coleoptera: Scarabaeidae: Scarabaeinae) With Description Of One New Species And New Synonymies, Federico C. Ocampo

Papers in Entomology

The South American genus Eucranium Brullé has been revised and now includes six species: E. arachnoides Brullé, E. belenae Ocampo new species, E. cyclosoma Burmeister, E. dentifrons Guérin-Méneville, E. planicolle Burmeister, and E. simplicifrons Fairmaire. Eucranium pulvinatum Burmeister is a new junior synonym of Eucranium arachnoides Brullé, and Eucranium lepidum Burmeister is a new junior synonym of E. dentifrons Guérin-Méneville. The following lectotypes and neotypes are designated: Eucranium pulvinatum Burmeister, lectotype; Eucranium planicolle Burmeister, lectotype; Psammotrupes dentifrons Guérin-Méneville, neotype; and Eucranium lepidum Burmeister, neotype. Description of the genus and new species, diagnosis and illustrations, and distribution maps are provided for ...


The South American Dung Beetle Genus Ennearabdus Lansberge (Coleoptera: Scarabaeidae: Scarabaeinae: Eucraniini), Federico C. Ocampo 2010 CCT-CONICET, Mendoza

The South American Dung Beetle Genus Ennearabdus Lansberge (Coleoptera: Scarabaeidae: Scarabaeinae: Eucraniini), Federico C. Ocampo

Papers in Entomology

The South American endemic dung beetle genus Ennearabdus Lansberge is revised. Description, diagnosis and illustrations are presented for the only known species of the genus, E. lobocephalus (Harold). A lectotype is designated for Onthophagus lobocephalus Harold, the type species of Ennearabdus. The biology, biogeography, conservation status, and distribution based on the predictive distribution model of E. lobocephalus are also discussed.


Comparison Of Percent Hatch And Fungal Infestation In Channel Catfish Eggs After Copper Sulfate, Diquat Bromide, Formalin, And Hydrogen Peroxide Treatment, Andrew J. Mitchell, David L. Straus, Bradley Farmer, Ray Carter 2010 United States Department of Agriculture

Comparison Of Percent Hatch And Fungal Infestation In Channel Catfish Eggs After Copper Sulfate, Diquat Bromide, Formalin, And Hydrogen Peroxide Treatment, Andrew J. Mitchell, David L. Straus, Bradley Farmer, Ray Carter

Publications from USDA-ARS / UNL Faculty

Reduced survival of fish eggs is often a result of infestation with fungi Saprolegnia spp. However, timely chemical treatments often limit these infestations and increase survival. The effect of copper sulfate pentahydrate (CSP; 10 mg of CSP/L of water), diquat bromide (25 mg of diquat cation/L), formalin (433 mg/L), and hydrogen peroxide (H2O2; 250 mg/L) on percent hatch and fungal infestation in eggs of channel catfish Ictalurus punctatus was compared in two identical trials (five replicates for each chemical treatment per trial). The percent hatch in all chemical treatments was significantly better than ...


Evaluating The Effects Of Pinyon Thinning Treatments At A Wildland Urban Interface, J. R. Matchett, Matthew L. Brooks, Anne Halford, Dale Johnson, Helen Smith 2010 US Geological Survey

Evaluating The Effects Of Pinyon Thinning Treatments At A Wildland Urban Interface, J. R. Matchett, Matthew L. Brooks, Anne Halford, Dale Johnson, Helen Smith

JFSP Research Project Reports

This study evaluated the short-term effects of thinning methods for pinyon pine woodlands at two sites in the southwestern Great Basin. Both cut/pile/burn and mastication treatments were equally effective at reducing the target fuels which were mature, live pinyon trees. Application costs though differed substantially, with the cut/pile/burn technique being less expensive. Thinning treatments increased the abundance of herbaceous vegetation, although in some cases the strength of the increase was constrained by the level of pre-treatment tree dominance. Increases in perennial grass cover and density in response to thinning were usually greatest at lower levels of ...


Exploring The Traditional Use Of Fire In The Coastal Mountains Of Central California, Brent E. Johnson, Rand R. Everett, Kent G. Lightfoot, Charles J. Stiplen 2010 University of California

Exploring The Traditional Use Of Fire In The Coastal Mountains Of Central California, Brent E. Johnson, Rand R. Everett, Kent G. Lightfoot, Charles J. Stiplen

JFSP Research Project Reports

This study brought together a team of ecologists, archaeologists, environmental historians, indigenous peoples, and land managers within a research framework combining an ethnographic investigation of traditional practices with cutting-edge paleoecological techniques to answer questions about Indian utilization of fire as an ecological and cultural landscape management tool in Central Coastal California. The study was designed around four key elements: (1) examining fire regimes for research sites using a combination of fire scar dendrochronology, phytoliths, archaeology, historical information, and traditional ecological knowledge; (2) attempting to formalize a methodology for using phytoliths to estimate the fire return interval and intensity in grassland ...


Fire Regimes Of The Southern Appalachian Mountains: Temporal And Spatial Variability Over Multiple Scales And Implications For Ecosystem Management, Charles W. Lafon, Henri D. Grissino-Mayer, Sally P. Horn, Robert N. Klein 2010 Texas A&M University

Fire Regimes Of The Southern Appalachian Mountains: Temporal And Spatial Variability Over Multiple Scales And Implications For Ecosystem Management, Charles W. Lafon, Henri D. Grissino-Mayer, Sally P. Horn, Robert N. Klein

JFSP Research Project Reports

Information about historic fire regimes and the departure of current fire regimes from historic conditions is essential for guiding and justifying management actions, such as prescribed burning programs for ecosystem process restoration and fuel reduction. Such information is noticeably lacking for the southern Appalachian Mountains, where human populations are encroaching onto wildland areas, and where decades of fire exclusion have contributed to the decline of fire-associated communities and also to altered fuel loads. We address this knowledge gap via a multi-scale investigation of the variability in fire regimes over time and space using tree-ring reconstructions of fire history and stand ...


Fuel Consumption And Smoke Emissions From Landscape-Scale Burns In Eastern Hardwoods, Matthew Dickinson, Ann Acheson, Robert Kremens 2010 US Forest Service

Fuel Consumption And Smoke Emissions From Landscape-Scale Burns In Eastern Hardwoods, Matthew Dickinson, Ann Acheson, Robert Kremens

JFSP Research Project Reports

Our project used remotely-sensed infrared radiation measurements to estimate fuel consumption in eastern mixed-oak forests and facilitated the development of smoke management expertise and processes for complying with EPA regulations in Ohio and Kentucky. As a result of two workshops, Ohio developed a Smoke Management Plan designed to ensure that best management practices were being used across land ownerships and to facilitate mandated information sharing with the Ohio EPA and US EPA. Ohio also established a Prescribed Fire Council as a result of this process. Kentucky opted for a less formal response to EPA regulations, establishing a Prescribed Fire Council ...


Developing And Using Fire Scar Histories In The Southern And Eastern United States, Richard P. Guyette, Martin Spetich, Daniel C. Dey 2010 University of Missouri-Columbia

Developing And Using Fire Scar Histories In The Southern And Eastern United States, Richard P. Guyette, Martin Spetich, Daniel C. Dey

JFSP Research Project Reports

Land managers developing fire management plans in the eastern and southern United States lack quantitative information on historic fire regimes. Twelve new fire histories were developed from dated fire scars on trees from regions where no fire scar history data had existed before in the states of Alabama, Louisiana, Kentucky, Iowa, Wisconsin, and Michigan. Sites represent highly variable climates from extreme cold (with long snow cover duration) to subtropical. All sites utilized oak or pine recorder species that were collected from closed forest to open savanna structures. Pre-industrial mean fire intervals ranged from 3 to more than 35 years at ...


Litter-Carbon Dynamics: The Importance Of Decomposition, Accretion, And Sequestration In Understanding Ecosystem Carbon Cycling, Amy Kochsiek 2010 University of Nebraska at Lincoln

Litter-Carbon Dynamics: The Importance Of Decomposition, Accretion, And Sequestration In Understanding Ecosystem Carbon Cycling, Amy Kochsiek

Dissertations and Theses in Biological Sciences

The atmospheric CO2 concentration has been increasing since the industrial revolution. A proposed mitigation strategy is sequestering carbon (C) in terrestrial ecosystems, either in plant biomass or soil organic matter. The litter-C pool is the second largest C pool in agroecosystems post-harvest, and the amount of litter-C loss has been correlated with ecosystem respiration. Yet, the potential importance of the litter pool as one of the major C pools in a system is relatively unknown. We do, however, know that the size of the litter pool can be affected by increases or decreases in both litter-C production and decomposition ...


Ducks, Geese, And Swans Of The World: Tribe Anseranatini (Magpie Goose), Paul A. Johnsgard 2010 University of Nebraska-Lincoln

Ducks, Geese, And Swans Of The World: Tribe Anseranatini (Magpie Goose), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Other vernacular names. Semipalmated goose, pied goose, black-and-white goose; Spaltfussgans (German); oie pie (French); gans overo o pintado (Spanish).

This is the only species of true waterfowl with only partially webbed feet. Adults of both sexes are black on the head, neck, wings, rump, and tail, and white elsewhere. The bill is long and straight, with a well-developed nail at the tip; as in swans, the head is featherless back to the eyes. Females resemble males but are somewhat smaller, lack an enlarged bony crown, and have a higher-pitched voice. Adult males have an elongated trachea that loops downward between ...


Ducks, Geese, And Swans Of The World: Contents, Preface, & Introduction, Paul A. Johnsgard 2010 University of Nebraska-Lincoln

Ducks, Geese, And Swans Of The World: Contents, Preface, & Introduction, Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Inasmuch as the primary purpose of this book is to provide information on each of the species of the waterfowl family in a standardized format and easily accessible manner, it is important that the reader have some knowledge of the basis for my sequential organization of these species. A variety of attempts to provide a "natural" classification, or one that best reflects actual evolutionary relationships, of the family Anatidae have been made in recent years, with most of them being minor variations on a scheme first proposed by Jean Delacour and Ernst Mayr in 1945. In this landmark classification, emphasis ...


Ducks, Geese, And Swans Of The World: Tribe Stictonettini (Freckled Duck), Paul A. Johnsgard 2010 University of Nebraska-Lincoln

Ducks, Geese, And Swans Of The World: Tribe Stictonettini (Freckled Duck), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Freckled Duck
Even more than the Cape Barren goose, the freckled duck exhibits an assortment of anatomical traits that suggest affinities with the geese and swans, in spite of a fairly typical ducklike appearance and foraging behavior. Its unpatterned downy young, its remarkably primitive syringeal structure, and its reticulated tarsus all strongly argue for the position that this species is the sole survivor of a very ancient waterfowl lineage, with no near living relatives. A detailed study of its social behavior is greatly to be desired, for like the magpie goose, it provides an unequaled opportunity to gain insight into ...


Ducks, Geese, And Swans Of The World: Tribe Cereopsini (Cape Barren Goose), Paul A. Johnsgard 2010 University of Nebraska-Lincoln

Ducks, Geese, And Swans Of The World: Tribe Cereopsini (Cape Barren Goose), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Cape Barren Goose
Several recent studies have suggested that this unusual Australian gooselike bird is not very closely related to either the true geese or the sheldgeese, although it shares some traits with both groups. It has some unique traits, such as its unusually swollen bill, its adaptations to a terrestrial existence on the coastline and islands of the Bass Strait, and its very simple syringeal structure. Like the freckled duck, it is perhaps best considered as a survivor of a group transitional between the two major subfamilies of waterfowl that exist at the present time.


Ducks, Geese, And Swans Of The World: Tribe Dendrocygnini (Whistling Or Tree Ducks), Paul A. Johnsgard 2010 University of Nebraska-Lincoln

Ducks, Geese, And Swans Of The World: Tribe Dendrocygnini (Whistling Or Tree Ducks), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Spotted Whistling Duck
Plumed Whistling Duck
Fulvous Whistling Duck
Wandering Whistling Duck
Lesser Whistling Duck
White-faced Whistling Duck
Cuban Whistling Duck
Magellan Goose
Black-bellied Whistling Duck
White-backed Duck

The whistling ducks are a group of nine species, eight of which are readily placed in the single genus Dendrocygna, or "tree ducks." However, they are not primarily perching birds, and thus "whistling ducks" is a better vernacular designation than the frequently used "tree ducks." In nearly all species both sexes utter a clear, often multisyllabic whistle that readily identifies the bird as to its species and apparently provides important communication signals ...


Ducks, Geese, And Swans Of The World: Tribe Merganettini (Torrent Duck), Paul A. Johnsgard 2010 University of Nebraska-Lincoln

Ducks, Geese, And Swans Of The World: Tribe Merganettini (Torrent Duck), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Torrent Duck
This remarkable stream-dwelling duck of the Andean mountains is certainly one of the most specialized of all waterfowl, and in part its anatomical and behavioral specializations have obscured its basic relationships, which appear to be with either the perching ducks or the dabbling ducks. In the absence of definitive evidence, it seems reasonable to maintain a separate tribe for this species, which exists as a series of relatively isolated populations between Venezuela and Tierra del Fuego that vary greatly in male plumage characteristics. Torrent ducks are essentially cavity- or ledge-nesting forms, although only a few nests have been ...


Ducks, Geese, And Swans Of The World: Tribe Tachyerini (Steamer Ducks), Paul A. Johnsgard 2010 University of Nebraska-Lincoln

Ducks, Geese, And Swans Of The World: Tribe Tachyerini (Steamer Ducks), Paul A. Johnsgard

Ducks, Geese, and Swans of the World by Paul A. Johnsgard

Flying Steamer Duck
Magellanic Flightless Steamer Duck
Falkland Flightless Steamer Duck

The South American steamer ducks have at times been included with the shelducks, but differ enough from them in structure and behavior to be regarded as a separate but closely related tribe. There are three species very similar in appearance; two are essentially flightless. All are found off the coasts of southern South America and the Falkland Islands, where they feed on mollusks and other marine invertebrates. The males differ slightly from females in their plumage and vocalizations, but in both sexes iridescent coloration is totally lacking and only ...


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