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Rubidium Chloride And Cesium Chloride Sprayed On Maize Plants And Evaluated For Marking Diatraea Grandiosella (Lepidoptera: Crambidae) In Mark–Recapture Dispersal Studies, Jawwad A. Qureshi, Lawrent L. Buschman, James E. Throne, Paul M. Whaley, Sonny B. Ramaswamy

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Experiments were undertaken to determine the potential for using rubidium chloride (RbCl) or cesium chloride (CsCl) to mark southwestern corn borer, Diatraea grandiosella Dyar, for use in applied ecological studies. Maize, Zea mays L., plants were sprayed with aqueous solutions of RbCl or CsCl at rates of 100, 1000, or 10,000 µg/g and inoculated with D. grandiosella neonates. Rubidium and cesium were successfully absorbed and translocated in maize plants. There were only a few minor effects of the treatment on maize or on southwestern corn borers.Rb and Cs were detected in plants, but not in insects, by using Flame …

Third International Galliformes Symposium 2004 (April 5-10, 2004, Dehradun, India): Abstracts, World Pheasant Association, India Ministry Of Environment And Forests, British High Commission

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Abstracts

Strategy for Conservation of Pheasants in Himachal Pradesh, India, A. K. Gulati

An overview of Galliformes Conservation in Sikkim, India, T. R. Sharma

Distribution, status and conservation Galliformes in north east India, Anwaruddin Choudhury

Status of Galliformes in Pakistan and prioritising conservation areas, Rab Nawaz

The status and conservation needs of Nepal 's Galliformes, HemSagar Baral

Status of Galliformes in Bhutan, Rebecca Pradhan

Status and conservation of the Galliformes of Bangladesh, M. Sohrab Uddin Sarker

Galliformes of Sri Lanka: Status and conservation needs, Charles Santiapillai and S. Wijeyamchan

A strategy for the conservation of Galliformes of South Asia, Rahul …

Habitat Use And Migration Patterns Of Sandhill Cranes Along The Platte River, 1998 – 2001, Craig Davis

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

During spring migration, sandhill cranes (Crus Canadensis) rely on the central Platte River valley in Nebraska as a staging area to replenish depleted energy and nutrient reserves. From mid-February to mid-April 1998-2001, we conducted ground and aerial surveys of sandhill cranes in the central Platte River valley. Peak numbers of sandhill cranes (121,000-285,000 cranes) detected during ground surveys occurred in mid-March (1998, 2001) or early March (1999, 2000). From 42% to 55% of the cranes occurred in cornfields, 26%-38% in lowland grassland, 7%-13% in alfalfa, and 2%-12% in other habitats (soybean, winter wheat, shrub-grassland, upland grassland). In general, …

Ecomorphology Of Bats: Comparative And Experimental Approaches Relating Structural Design To Ecology, Sharon M. Swartz, Patricia W. Freeman, Elizabeth F. Stockwell

School of Natural Resources: Faculty Publications

The past several decades have seen the beginning of integration of discoveries in the ecology and morphology of bats into an ecomorphological whole that promises to be greater than the sum of its parts. However, achieving this integration is challenging. Each of the elements of this interdisciplinary field is, in itself, avast and complex subject. This book is a testament to the breadth and depth of ecological studies of bats. Morphological studies now extend be- yond descriptive anatomy in both outlook and method, and incorporate, for example, aspects of genetics, physiology, solid and fluid mechanics, and developmental biology. There is …

Serologic Survey For Diseases In Free-Ranging Coyotes (Canis Latrans) From Two Ecologically Distinct Areas Of Utah, Wendy M. Arjo, Eric M. Gese, Cassity Bromley, Adam Kozlowski, Elizabeth S. Williams

United States Department of Agriculture Wildlife Services: Staff Publications

The influence of habitat and associated prey assemblages on the prevalence of canine diseases in coyotes (Canis latrans) has received scant attention. From December 1997 through December 1999, we captured 67 coyotes in two ecologically distinct areas of Utah (USA): Deseret Land and Livestock Ranch and US Army Dugway Proving Ground. These areas differ in habitat and prey base. We collected blood samples and tested for evidence of various canine diseases. Prevalence of antibodies against canine parvovirus (CPV) was 100% in the Deseret population and 93% in the Dugway population. All juveniles in both populations had been exposed. …

Whaling As Science, Phillip J. Clapham, Per Berggren, Simon Childerhouse, Nancy A. Friday, Toshio Kasuya, Laurence Kell, Karl-Hermann Kock, Silvia Manzanilla-Naim, Giuseppe Notabartolo Di Sciara, William F. Perrin, Andrew J. Read, Randall R. Reeves, Emer Rogan, Lorenzo Rojas-Bracho, Tim D. Smith, Michael Stachowitsch, Barbara L. Taylor, Deborah Thiele, Paul R. Wade, Robert L. Brownell Jr.

United States Department of Commerce: Staff Publications

In an open letter published last year in the New York Times, 21 distinguished scientists (including three Nobel laureates) criticized Japan's program of scientific research whaling, noting its poor design and unjustified reliance upon lethal sampling. In a recent Forum article in BioScience, Aron, Burke, and Freeman (2002) castigate the letter's signers and accuse them of meddling in political issues without sufficient knowledge of the science involved in those issues.

Scavenging By Vertebrates: Behavioral, Ecological, And Evolutionary Perspectives On An Important Energy Transfer Pathway In Terrestrial Ecosystems, Travis L. Devault, Olin E. Rhodes Jr., John A. Shivik

United States Department of Agriculture Wildlife Services: Staff Publications

Carrion use by terrestrial vertebrates is much more prevalent than conventional theory implies, and, rather than a curiosity of animal behavior, is a key ecological process that must be accounted for. Human aversion to rotted substances and difficulties associated with identifying scavenged material in studies of food habits have contributed to the relative lack of information concerning scavenging behavior in vertebrates. Several lines of evidence, however, suggest that carrion resources are more extensively used by vertebrates than has been widely assumed: 1) a substantial number of animals die from causes other than predation and become available to scavengers, 2) a …

Characteristics Of Current And Historical Kit Fox (Vulpes Macrotis) Dens In The Great Basin Desert, Wendy M. Arjo, Tim J. Bennett, Adam J. Kozlowski

United States Department of Agriculture Wildlife Services: Staff Publications

We examined the ecological and physical characteristics of den sites for 13 adult kit fox (Vulpes macmtis) in western Utah from December 1998 to February 2001. We also compared current and historical den distribution among habitat types. The number of den sites used was not influenced by home-range size (P = 0.11) or season (P = 0.40), but was influenced by geographical area. Home-range size was smallest (P = 0.007) and the number of dens used was greatest (P = 0.009) in mountainous areas. Ecological and physical characteristics of single-use dens (n = …

Megapode Newsletter 17(1)-21(2) (2003-2008), World Pheasant Association, Birdlife International, Ssc Megapode Specialist Group

Galliformes Specialist Group and Affiliated Societies: Newsletters

Volume 17, Number 1 (April 2003)

Editors: René W. R. J. Dekker and Darryl N. Jones

Viable population of Bruijn's Brush-turkey Aepypodius bruijnii discovered, Iwein Mauro

A new, a forgotten and a lost specimen of Bruijn's Brush-turkey Aepypodius bruijnii, C. W. Moeliker, C. J. Heij, J. N. J. Post, and E. J. O. Kompanje

Successful synanthropy in an Australian megapode, Darryl N. Jones

Monitoring the Nicobar megapode Megapodius nicobariensis: Phase I, Current status and conservation of the Nicobar megapode Megapodius nicobariensis, K. Sivakumar

Megapode Genetics Project proposal, Gillian C. Baker

Polynesian megapode Megapodius pritchardii status survey on …

Fungal Biology And Agriculture: Revisiting The Field, O. Yarden, D. J. Ebbole, S. Freeman, R. J. Rodriguez, M. B. Dickman

Department of Plant Pathology: Faculty Publications

Plant pathology has made significant progress over the years, a process that involved overcoming a variety of conceptual and technological hurdles. Descriptive mycology and the advent of chemical plant-disease management have been followed by biochemical and physiological studies of fungi and their hosts. The later establishment of biochemical genetics along with the introduction of DNA-mediated transformation have set the stage for dissection of gene function and advances in our understanding of fungal cell biology and plant–fungus interactions. Currently, with the advent of high-throughput technologies, we have the capacity to acquire vast data sets that have direct relevance to the numerous …

Implementation Plan For The Conservation Of Nebraska’S Eastern Saline Wetlands, Ted Lagrange, Terry Genrich, Glenn Johnson, Dan Schulz, Brent Lathrop

Nebraska Game and Parks Commission: Publications

Nebraska’s Eastern Saline Wetlands are the most limited and endangered wetland type and vegetation community in the State and are considered critically imperiled in Nebraska. These wetlands provide habitat for a variety of native plant and animal species that depend on a saline environment, including two endangered species.

Because of their location in and around the city of Lincoln, saline wetlands are ideally located to provide recreational opportunities and flood protection. Past impacts have resulted in the degradation of nearly 90% of the saline wetlands and those remaining face continued threats.

Although several programs are in existence to address saline …

Implementation Of The Biological Opinion For The Missouri River Mainstem System, Missouri River Bank Stabilization And Navigation Project, And Kansas River Reservoir System

United States Army Corps of Engineers, Omaha District

The Endangered Species Act (ESA) requires that the Corps of Engineers (Corps), in coordination with the appropriate resource agencies, will ensure that any action authorized, funded, or carried out is not likely to jeopardize the continued existence of any federally listed threatened or endangered species or result in the destruction or adverse modification of critical habitat. On November 30, 2000, formal consultation between the U.S. Fish and Wildlife Service (USFWS) and the Corps under Section 7 of the ESA culminated with the "Biological Opinion on the Operation of the Missouri River Main Stem System, Operation and Maintenance ofthe Missouri River …

Differences In Habitat Use By Blanding’S Turtles, Emydoidea Blandingii, And Painted Turtles, Chysemys Picta, In The Nebraska Sandhills, R. Bruce Bury, David J. Germano

United States Geological Survey: Staff Publications

We sampled a variety of wetlands in the Nebraska sandhills at Valentine National Wildlife Refuge. Significantly more individuals of painted turtles (Chrysemys picta) occurred in lakes and open waters than in marshes or small ponds, and the opposite was true for Blanding’s turtles (Emydoidea blandingii). Besides this marked difference in habitat use, 46% of the captured E. blandingii in pond/marsh habitat were juveniles, but only 31.6% in lakes and open water. Current information suggests that marshes and small ponds are important habitat for juvenile turtles, especially Emydoidea blandingii.

Impact Of Fire Management On The Ecology Of Collared Lizard (Crotaphytus Collaris) Populations Living On The Ozark Plateau, Jennifer A. Brisson, Jared L. Strasburg, Alan R. Templeton

School of Biological Sciences: Faculty Publications

Eastern collared lizards (Crotaphytus collaris collaris) on the Ozark Plateau of southern Missouri are restricted to islands of rocky glade habitat located throughout the oak–hickory forests of the region. Human mediated suppression of fire negatively impacts collared lizard populations by permitting the overgrowth and consequent disappearance of this glade habitat and also leads to a dense forest understorey that impedes movement of lizards between glades. We present data examining the effects of a fire management regime on collared lizard populations we monitored via mark/recapture from 1998 to 2001. We demonstrate increased glade-to-glade dispersal, colonization of previously unoccupied glades, …

Invasiveness Of Some Biological Control Insects And Adequacy Of Their Ecological Risk Assessment And Regulation, Svata M. Louda, Amy E. Arnett, Tatyana A. Rand, F. L. Russell

School of Biological Sciences: Faculty Publications

The problem of invasive species has reignited interest in biological control as a management tool. Classical biological control involves deliberate release of exotic natural enemies into new environments in an attempt to limit the density of an invasive species. Persistent, sustained limitation of invasive species by coevolved natural enemies is a seductive concept. Evidence now suggests, however, that biological control through the release of natural enemies can carry unanticipated ecological risks. There have been ecological side effects of distributing a deliberately introduced weevil (Rhinocyllus conicus) and an adventitious weevil (Larinus planus) for the biological control of …

Improving Precision And Reducing Bias In Biological Surveys: Estimating False-Negative Error Rates, Andrew J. Tyre, Brigitte Tenhumberg, Scott A. Field, Darren Niejalke, Kirsten Parris, Hugh P. Possingham

School of Biological Sciences: Faculty Publications

The use of presence/absence data in wildlife management and biological surveys is widespread. There is a growing interest in quantifying the sources of error associated with these data. We show that false-negative errors (failure to record a species when in fact it is present) can have a significant impact on statistical estimation of habitat models using simulated data. Then we introduce an extension of logistic modeling, the zero-inflated binomial (ZIB) model that permits the estimation of the rate of false-negative errors and the correction of estimates of the probability of occurrence for false-negative errors by using repeated visits to the …

Calibration Of Remotely Sensed, Coarse Resolution Ndvi To Co2 Fluxes In A Sagebrush–Steppe Ecosystem, Bruce K. Wylie, Douglas A. Johnson, Emilio Laca, Nicanor Z. Saliendra, Tagir G. Gilmanov, Bradley C. Reed, Larry L. Tieszen, Bruce B. Worstell

United States Geological Survey: Staff Publications

The net ecosystem exchange (NEE) of carbon flux can be partitioned into gross primary productivity (GPP) and respiration (R). The contribution of remote sensing and modeling holds the potential to predict these components and map them spatially and temporally. This has obvious utility to quantify carbon sink and source relationships and to identify improved land management strategies for optimizing carbon sequestration. The objective of our study was to evaluate prediction of 14-day average daytime CO₂ fluxes ( F_day) and nighttime CO₂ fluxes (R_n) using remote sensing and other data. F_{day …}

Phase And Amplitude Of Ecosystem Carbon Release And Uptake Potentials As Derived From Fluxnet Measurements, Eva Falge, John Tenhunen, Dennis D. Baldocchi, Marc Aubinet, Peter Bakwin, Paul Berbigier, Christian Bernhofer, Jean-Marc Bonnefond, George Burba, Robert Clement, Kenneth J. Davis, Jan A. Elbers, Matthias Falk, Allen H. Goldstein, Achim Grelle, Andre Granier, Thomas Grunwald, Jon Gundmondsson, David Hollinger, Ivan A. Janssens, Petri Keronen, Andrew S. Kowalski, Gabriel Katul, Beverly E. Law, Yadvinder Malhi, Tilden Meyers, Russell K. Monson, Eddy Moors, J. William Munger, Walt Oechel, Kyawtha Paw U, Kim Pilegaard, Ullar Rannik, Corinna Rebmann, Andrew E. Suyker, Halldor Thorgeirsson, Giampiero Tirone, Andrew Turnipseed, Kell Wilson, Steve Wofsy

School of Natural Resources: Faculty Publications

As length and timing of the growing season are major factors explaining differences in carbon exchange of ecosystems, we analyzed seasonal patterns of net ecosystem carbon exchange (F_NEE) using eddy covariance data of the FLUXNET data base (http://www-eosdis.ornl.gov/FLUXNET). The study included boreal and temperate, deciduous and coniferous forests, Mediterranean evergreen systems, rainforest, native and managed temperate grasslands, tundra, and C3 and C4 crops. Generalization of seasonal patterns are useful for identifying functional vegetation types for global dynamic vegetation models, as well as for global inversion studies, and can help improve phenological modules in SVAT or biogeochemical models. …

Dietary Overlap Between Wolves And Coyotes In Northwestern Montana, Wendy M. Arjo, Daniel H. Pletscher, Robert R. Ream

United States Department of Agriculture Wildlife Services: Staff Publications

We studied effects of recolonizing wolves (Canis lupus) in the North Fork of the Flathead area of northwestern Montana on the diets of coyotes (C. latrans) from 1994 to 1997. Wolf and coyote diets differed in frequency of occurrence of prey species during 3 of the 4 summers and winters (P< 0.001) during the study. Coyote diets contained more murid prey items, and wolf diets contained more deer (Odocoileus virginianus and O. hemionus) in the summer and elk (Cervus elaphus) in the winter. Coyotes and wolves ate prey of different size during both the summer (P < 0.001) and winter (P < 0.001) months in 1994– 1996: wolves took a greater proportion (P < 0.001) of large (>45 kg) prey species and coyotes, small (<2 kg) prey (P < 0.001). Wolves selected a larger proportion of adults (P …