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2008

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Articles 121 - 150 of 213

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Factors Influencing Predation On Juvenile Ungulates And Natural Selection Implications, S. M. Barber-Meyer, L. D. Mech Jan 2008

Factors Influencing Predation On Juvenile Ungulates And Natural Selection Implications, S. M. Barber-Meyer, L. D. Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Juvenile ungulates are generally more vulnerable to predation than are adult ungulates other than senescent individuals, not only because of their relative youth, fragility, and inexperience, but also because of congenital factors. Linnell et al.’s (Wildl. Biol. 1: 209-223) extensive review of predation on juvenile ungulates concluded that research was needed to determine the predisposition of these juveniles to predation. Since then, various characteristics that potentially predispose juvenile ungulates have emerged including blood characteristics, morphometric and other condition factors, and other factors such as birth period, the mother’s experience, and spatial and habitat aspects. To the extent that any of …

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Revisiting The Classics: Considering Nonconsumptive Effects In Textbook Examples Of Predator–Prey Interactions, Barbara L. Peckarsky, Peter A. Abrams, Daniel I. Bolnick, Lawrence M. Dill, Jonathan H. Grabowski, Barney Luttberg, John L. Orrock, Scott D. Peacor, Evan L. Preisser, Oswald J. Schmitz, Geoffrey C. Trussell Jan 2008

Revisiting The Classics: Considering Nonconsumptive Effects In Textbook Examples Of Predator–Prey Interactions, Barbara L. Peckarsky, Peter A. Abrams, Daniel I. Bolnick, Lawrence M. Dill, Jonathan H. Grabowski, Barney Luttberg, John L. Orrock, Scott D. Peacor, Evan L. Preisser, Oswald J. Schmitz, Geoffrey C. Trussell

Biological Sciences Faculty Publications

Predator effects on prey dynamics are conventionally studied by measuring changes in prey abundance attributed to consumption by predators. We revisit four classic examples of predator–prey systems often cited in textbooks and incorporate subsequent studies of nonconsumptive effects of predators (NCE), defined as changes in prey traits (e.g., behavior, growth, development) measured on an ecological time scale. Our review revealed that NCE were integral to explaining lynx–hare population dynamics in boreal forests, cascading effects of top predators in Wisconsin lakes, and cascading effects of killer whales and sea otters on kelp forests in nearshore marine habitats. The relative roles of …

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The Impact Of Children's Literature On The Environmental Awareness Of A Population Of Second Grade Students, Iris Jackeline Russo Jan 2008

The Impact Of Children's Literature On The Environmental Awareness Of A Population Of Second Grade Students, Iris Jackeline Russo

Theses Digitization Project

This project aimed at helping second grade children gain environmental sensitivity and awareness by infusing the existing English Language Arts curriculum with environmental activities. The purpose is to demonstrate how one can infuse the California state's mandated curriculum, Houghton Mifflin, with children's literature in order to promote environmental sensitivity and awareness.

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Ecological Literacy, Environmental Attitudes And Behaviors Of Residents Adjacent To The Coahcella Valley Preserve, Kathleen Dawn Fleming Jan 2008

Ecological Literacy, Environmental Attitudes And Behaviors Of Residents Adjacent To The Coahcella Valley Preserve, Kathleen Dawn Fleming

Theses Digitization Project

This thesis aims to address the many processes that guide communication between the public and conservation ecologists, and how one's knowledge of the area around them could affect communcation between groups. This thesis researched the dynamics of ecological literacy levels environmental attitudes and frequency of behaviors of the urban, suburban, and rural sub group residents that live in the Coachella Valley of Southern California. It is relevant to the current strategy for designing multiple species reserves through the development of multiple species habitat conservation plans.

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The Denial Of Emergency Protection: Factors Associated With Court Decision Making, Carol E. Jordan, Adam J. Pritchard, Pamela Wilcox, Danielle Duckett-Pritchard Jan 2008

The Denial Of Emergency Protection: Factors Associated With Court Decision Making, Carol E. Jordan, Adam J. Pritchard, Pamela Wilcox, Danielle Duckett-Pritchard

Office for Policy Studies on Violence Against Women Publications

Despite the importance of civil orders of protection as a legal resource for victims of intimate partner violence, research is limited in this area, and most studies focus on the process following a court’s initial issuance of an emergency order. The purpose of this study is to address a major gap in the literature by examining cases where victims of intimate partner violence are denied access to temporary orders of protection. The study sample included a review of 2,205 petitions that had been denied by a Kentucky court during the 2003 fiscal year. The study offers important insights into the …

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An Hsus Report: Human Health Implications Of Intensive Poultry Production And Avian Influenza, The Humane Society Of The United States Jan 2008

An Hsus Report: Human Health Implications Of Intensive Poultry Production And Avian Influenza, The Humane Society Of The United States

Impact of Animal Agriculture

The high stocking density, stress, unhygienic conditions, lack of sunlight, and breeding practices typical of industrial poultry and egg production systems may facilitate the emergence and spread of diseases, including highly pathogenic avian influenza viruses with public health implications such as H5N1.

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An Hsi Report: Human Health Implications Of Intensive Poultry Production And Avian Influenza, Humane Society International Jan 2008

An Hsi Report: Human Health Implications Of Intensive Poultry Production And Avian Influenza, Humane Society International

HSI REPORTS

The high stocking density, stress, unhygienic conditions, lack of sunlight, and breeding practices typical of industrial poultry and egg production systems may facilitate the emergence and spread of diseases, including highly pathogenic avian influenza viruses with public health implications such as H5N1.

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Spatial And Temporal Approaches In Analyzine Recreational Groundfish Data From Southern Central California And Their Application Toward Marine Protected Areas, Steven J. Rienecke, John S. Stephens Jr., Royden Nakamura, Erin Nakada, Dean E. Wendt Jan 2008

Spatial And Temporal Approaches In Analyzine Recreational Groundfish Data From Southern Central California And Their Application Toward Marine Protected Areas, Steven J. Rienecke, John S. Stephens Jr., Royden Nakamura, Erin Nakada, Dean E. Wendt

Biological Sciences

Many nearshore rockfish species have small homerange sizes and therefore may be affected by heavier localized fishing in nearport areas. For this study we examined longterm trends in rockfish and lingcod landings from the commercial passenger fishing vessel (CPFV) fishery along the south central coast (SCC) of California using data from two sources: California Department of Fish and Game (CDFG) surveys from 1988–98 and California Polytechnic State University (Cal Poly) surveys in 2003–04. The objective was to make comparisons between areas close to port (that receive greater fishing effort) and those far from port (areas receiving less fishing effort). We …

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An Automated Temperature-Based Option For Estimating Surface Activity And Refuge Use Patterns In Free-Ranging Animals, J R. Davis, E N. Taylor, D F. Denardo Jan 2008

An Automated Temperature-Based Option For Estimating Surface Activity And Refuge Use Patterns In Free-Ranging Animals, J R. Davis, E N. Taylor, D F. Denardo

Biological Sciences

Accurately assessing free-ranging animals’ patterns of surface activity and refuge use is critical, yet fundamentally challenging for biologists and wildlife managers. We evaluate the accuracy of an automated technique—temperature-based activity estimation (TBAE)—in estimating surface activity and refuge use patterns of two sympatric reptiles, the western diamond-backed rattlesnake (Crotalus atrox) and the Gila monster (Heloderma suspectum) in the Sonoran Desert. TBAE derived from a comparison of body temperature to shaded air temperature was effective in estimating the overall percent surface activity for both rattlesnakes (observed surface activity 51.8%, TBAE estimated surface activity 48.2%) and Gila monsters (observed …

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New And Current Microbiological Tools For Ecosystem Ecologists: Towards A Goal Of Linking Structure And Function, Rebecca E. Drenovsky, Kevin P. Ferris, Katharine M. Batten, Krassimira Hristova Jan 2008

New And Current Microbiological Tools For Ecosystem Ecologists: Towards A Goal Of Linking Structure And Function, Rebecca E. Drenovsky, Kevin P. Ferris, Katharine M. Batten, Krassimira Hristova

Biology

Interest in the relationships between soil microbial communities and ecosystem functions is growing with increasing recognition of the key roles microorganisms play in a variety of ecosystems. With a wealth of microbial methods now available, selecting the most appropriate method can be daunting, especially to those new to the field of microbial ecology. In this review, we highlight those methods currently used and most applicable to ecological studies, including assays to study various aspects of the carbon and nitrogen cycles (e.g., pool dilution, acetylene reduction, enzyme analyses, among others), methods to assess microbial community composition (e.g., phospholipid fatty acid analysis …

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From Individuals To Ecosystem Function: Toward An Integration Of Evolutionary And Ecosystem Ecology, Oswald J. Schmitz, Jonathan H. Garbowski, Barbara L. Peckarsky, Evan L. Preisser, Geoffrey C. Trussell, James R. Vonesh Jan 2008

From Individuals To Ecosystem Function: Toward An Integration Of Evolutionary And Ecosystem Ecology, Oswald J. Schmitz, Jonathan H. Garbowski, Barbara L. Peckarsky, Evan L. Preisser, Geoffrey C. Trussell, James R. Vonesh

Biological Sciences Faculty Publications

An important goal in ecology is developing general theory on how the species composition of ecosystems is related to ecosystem properties and functions. Progress on this front is limited partly because of the need to identify mechanisms controlling functions that are common to a wide range of ecosystem types. We propose that one general mechanism, rooted in the evolutionary ecology of all species, is adaptive foraging behavior in response to predation risk. To support our claim, we present two kinds of empirical evidence from plant‐based and detritus‐based food chains of terrestrial and aquatic ecosystems. The first kind comes from experiments …

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An Ecological Investigation Of Hangover Symptoms The Morning After Drinking Alcohol: Preliminary Results From Marc Project Six, Erin E. Hunt-Carter, Amee J. Epler, Alison E. Richardson, Philip K. Wood, Kenneth J. Sher, Thomas M. Piasecki Jan 2008

An Ecological Investigation Of Hangover Symptoms The Morning After Drinking Alcohol: Preliminary Results From Marc Project Six, Erin E. Hunt-Carter, Amee J. Epler, Alison E. Richardson, Philip K. Wood, Kenneth J. Sher, Thomas M. Piasecki

Posters

No abstract provided.

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Linkage Of The Us National Health Interview Survey To Air Monitoring Data: An Evaluation Of Different Strategies, Jennifer D. Parker, Tracey Woodruff, Lara J. Akinbami, Natalyia Kravets Jan 2008

Linkage Of The Us National Health Interview Survey To Air Monitoring Data: An Evaluation Of Different Strategies, Jennifer D. Parker, Tracey Woodruff, Lara J. Akinbami, Natalyia Kravets

United States Environmental Protection Agency: Publications

The goal of this study is to describe linkages between the National Health Interview Survey (NHIS) and Environmental Protection Agency (EPA) air monitoring data, specifically how the linkage method affects characteristics and exposure estimates of study samples and estimated associations between exposure and health. In the USA, nationally representative health data are collected in the NHIS and annual air quality data are collected by the EPA. The linkage of these data for research is not straightforward and the choices made may introduce bias into results. The 2000–2003 NHIS and air quality data for six air pollutants were linked by residential …

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Management Of Lands Along The Platte River From Elm Creek To Lexington, Nebraska, As Crane Habitat, James J. Jenniges, Mark M. Peyton Jan 2008

Management Of Lands Along The Platte River From Elm Creek To Lexington, Nebraska, As Crane Habitat, James J. Jenniges, Mark M. Peyton

Proceedings of the North American Crane Workshop

To meet Federal Energy Regulatory Commission (FERC) license requirements for the operation of 5 hydroelectric power plants on the North Platte and Platte Rivers in Nebraska, the Nebraska Public Power District (NPPD) and The Central Nebraska Public Power and Irrigation District (Central) together have become the second largest owners and managers of lands for the conservation of endangered species and migratory waterbirds along the central reach of the Platte River. We describe here the management activities on the properties, success of the management in achieving objectives, and the response of sandhill (Grus canadensis) and whooping cranes (G. …

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A Biotic Survey And Inventory Of The Dynastine Scarab Beetles Of Mesoamerica, North America, And The West Indies: Review Of A Long-Term, Multicountry Project, Brett C. Ratcliffe, Ronald D. Cave Jan 2008

A Biotic Survey And Inventory Of The Dynastine Scarab Beetles Of Mesoamerica, North America, And The West Indies: Review Of A Long-Term, Multicountry Project, Brett C. Ratcliffe, Ronald D. Cave

University of Nebraska State Museum: Entomology Papers

This biotic inventory will document the species-level diversity of dynastine scarabs, their spatial and temporal distributions, ecological preferences, and biology. The long term, multi-country research project explores a biotically megadiverse region that is seriously at risk from deforestation, environmental homogenization, invasive species, and urban sprawl. Objectives of this survey are: 1) to understand the biodiversity of dynastine scarab beetles in Mesoamerica; 2) disseminate this information in print and electronic forms; 3) train students, parataxonomists, and collection managers in the study area about dynastine taxonomy and identification, care of collections, dissemination of information, and conservation; and 4) assemble authoritatively identified voucher …

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Animal-Side Serologic Assay For Rapid Detection Of Mycobacterium Bovis Infection In Multiple Species Of Free-Ranging Wildlife, K.P. Lyashchenko, R. Greenwald, J. Esfandiari, M.A. Chambers, J. Vicente, C. Gortazar, N. Santos, M. Correia-Neves, B.M. Buddle, R. Jackson, D.J. O’Brien, S. Schmitt, M. V. Palmer, R.J. Delahay, W.R. Waters Jan 2008

Animal-Side Serologic Assay For Rapid Detection Of Mycobacterium Bovis Infection In Multiple Species Of Free-Ranging Wildlife, K.P. Lyashchenko, R. Greenwald, J. Esfandiari, M.A. Chambers, J. Vicente, C. Gortazar, N. Santos, M. Correia-Neves, B.M. Buddle, R. Jackson, D.J. O’Brien, S. Schmitt, M. V. Palmer, R.J. Delahay, W.R. Waters

Michigan Bovine Tuberculosis Bibliography and Database

Numerous species of mammals are susceptible to Mycobacterium bovis, the causative agent of bovine tuberculosis (TB). Several wildlife hosts have emerged as reservoirs of M. bovis infection for domestic livestock in different countries. In the present study, blood samples were collected from Eurasian badgers (n = 1532), white-tailed deer (n = 463), brushtail possums (n = 129), and wild boar (n = 177) for evaluation of antibody responses to M. bovis infection by a lateral-flow rapid test (RT) and multiantigen print immunoassay (MAPIA). Magnitude of the antibody responses and antigen recognition patterns varied among the animals as determined by …

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Effects Of Eutrophication On Salt Marsh Root And Rhizome Biomass Accumulation, F A. Darby, R. Eugene Turner Jan 2008

Effects Of Eutrophication On Salt Marsh Root And Rhizome Biomass Accumulation, F A. Darby, R. Eugene Turner

Faculty Publications

The root:shoot ratio of grassland plants may be lower in high fertility sites than in low fertility sites as plants modify their root, rhizome and shoot morphologies (and masses) to suit prevailing nutrient availability. We conducted geographically diverse and regionally specific field sampling and measured above- and belowground plant biomasses in western Atlantic and Gulf of Mexico salt marshes to determine whether there is a similar morphological response in Spartina alterniflora, the dominant salt marsh plant. Coastal nutrient addition/enrichment, which is widespread and ongoing, may lower root and rhizome biomass, belowground production and organic accumulation in this species. Higher soil …

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Ocean Urea Fertilization For Carbon Credits Poses High Ecological Risks, P.M. Glibert, R. Azanza, M. Burford, K. Furuya, E. Abal, A. Al-Azri, F. Al-Yamani, P. Andersen, D.M. Anderson, J. Beardall, G.M. Berg, L. Brand, D. Bronk, J. Brookes, J.M. Burkholder, A. Cembella, W.P. Cochlan, J.L. Collier, Y. Collos, R. Diaz, M. Doblin, T. Drennen, S. Dyhrman, Y. Fukuyo, M. Furnas, J. Galloway, E. Granéli, D.V. Ha, G. Hallegraeff, J. Harrison, P.J. Harrison, C.A. Heil, K. Heimann Jan 2008

Ocean Urea Fertilization For Carbon Credits Poses High Ecological Risks, P.M. Glibert, R. Azanza, M. Burford, K. Furuya, E. Abal, A. Al-Azri, F. Al-Yamani, P. Andersen, D.M. Anderson, J. Beardall, G.M. Berg, L. Brand, D. Bronk, J. Brookes, J.M. Burkholder, A. Cembella, W.P. Cochlan, J.L. Collier, Y. Collos, R. Diaz, M. Doblin, T. Drennen, S. Dyhrman, Y. Fukuyo, M. Furnas, J. Galloway, E. Granéli, D.V. Ha, G. Hallegraeff, J. Harrison, P.J. Harrison, C.A. Heil, K. Heimann

Faculty Publications

No abstract provided.

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An Examination Of Female Youth Gangs, Tiffiney Y. Barfield-Cottledge, Myrna Cintron, Jonathan Sorensen Jan 2008

An Examination Of Female Youth Gangs, Tiffiney Y. Barfield-Cottledge, Myrna Cintron, Jonathan Sorensen

Contemporary Issues in Juvenile Justice

Cohen's subculture of delinquency theory (1955) posits that male youth gangs exist largely as the result of the status frustration experienced by rejected adolescents in their search for middle class acceptance. Cohen concluded that social and structural factors, particularly neighborhood and school environments, impacted youth gang prevalence. While many studies related to the existence of youth gangs have been conducted, few have focused specifically on female youth gangs. In the current study, an examination of female youth gangs was conducted using self-report data gathered for the National Longitudinal Survey of Youth (1997-2001). Contrary to arguments that gendered-specific criminological theories are …

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Survival Strategies Of Eelgrass In Reduced Light, Caroline A. Ochieng Jan 2008

Survival Strategies Of Eelgrass In Reduced Light, Caroline A. Ochieng

Doctoral Dissertations

Light reduction due to anthropogenic impacts is the most widespread cause of worldwide decline of eelgrass, an ecologically important marine angiosperm whose role in supporting overall coastal ecosystem productivity has been widely recognized. Understanding eelgrass plant and meadow responses to light reduction has therefore received significant research interest over the last 30 years, while managers have sought tools to identify critical thresholds for light availability and predict impacts of human-induced disturbances in order to prevent further eelgrass loss. In the present thesis, a review of some of the literature on light reduction and its effects on eelgrass (i) summarized the …

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First Come, First Serve: “Sit And Wait” Behavior In Dung Beetles At The Source Of Primate Dung, Jennifer Jacobs, Ines Nole, Susanne Palminteri, Brett C. Ratcliffe Jan 2008

First Come, First Serve: “Sit And Wait” Behavior In Dung Beetles At The Source Of Primate Dung, Jennifer Jacobs, Ines Nole, Susanne Palminteri, Brett C. Ratcliffe

Department of Entomology: Faculty Publications

Dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) compete intensively for dung resources, and most species forage in the understory. Here, we describe the unique behavior of one dung beetle species, Canthon aff. quadriguttatus (Olivier), associated with two species of monkeys from Peru. We observed this beetle species on the genital and anal regions of the brown titi monkey, Callicebus brunneus (Wagner), and subsequently falling with dung as the monkeys defecated. The same association was also observed with the bald-faced saki monkey, Pithecia irrorata irrorata (Gray). Using the “sit and wait” at the source behavior, C. quadriguttus may arrive first at the dung …

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Review Of The Niobrara: A River Running Through Time. By Paul A. Johnsgard., Fritz L. Knopf Jan 2008

Review Of The Niobrara: A River Running Through Time. By Paul A. Johnsgard., Fritz L. Knopf

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

Paul Johnsgard has authored an exemplary list of books as an ornithologist and natural historian. This volume approaches (may actually be) his 50th. The Niobrara reads as if one is on an auto tour with a premier naturalist who has a trunk full of documented species data. Residents from Harrison to Niobrara will find herein a welcome overview of their own unique natural history.

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Literature Review Of Mule Deer And White-Tailed Deer Movements In Western And Midwestern Landscapes, Scott E. Hygnstrom, Scott R. Groepper, Kurt C. Vercauteren, Chuck J. Frost, Justin R. Boner, Travis C. Kinsell, Gregory M. Clements Jan 2008

Literature Review Of Mule Deer And White-Tailed Deer Movements In Western And Midwestern Landscapes, Scott E. Hygnstrom, Scott R. Groepper, Kurt C. Vercauteren, Chuck J. Frost, Justin R. Boner, Travis C. Kinsell, Gregory M. Clements

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

The relationships among seasonal change, population dynamics, social pressures, landscape dynamics, anthropologic disturbances, and behavioral ecology are complex. Therefore, migration and seasonal movements are poorly understood and dispersal continues to be one of the least understood aspects of animal ecology in North America. We reviewed scientific literature on movements of mule deer (Odocoileus hemionus) and white-tailed deer (O. virginianus) in western and midwestern landscapes to identify gaps in our knowledge and direct future research. We used electronic databases, library catalogs, Internet search engines, and peer-reviewed journals to conduct key word searches for pertinent articles. We found …

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Use Of Passive Integrated Transponders In Hatchling Texas Horned Lizards, Scott E. Henke Jan 2008

Use Of Passive Integrated Transponders In Hatchling Texas Horned Lizards, Scott E. Henke

The Prairie Naturalist

The Texas horned lizard (Phrynosoma cornutum) is a Texas state-threatened species and acquisition of data related to the species' ecology is essential. To accomplish this task individual animals need to be marked. Many marking techniques are available for lizards, however the majority of techniques have been tested on adults only. Studies involving hatchling and juvenile horned lizards are scarce due to problems associated with marking and relocating individuals in these age classes. I demonstrated that injection of passive integrated transponders (PIT's) can safely be used as a marking method in young Texas horned lizards. Thirty-two captive bred hatchling lizards were …

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Engineer Cantonment, Missouri Territory, 1819-1820: America's First Biodiversity Ineventory, Hugh H. Genoways, Brett C. Ratcliffe Jan 2008

Engineer Cantonment, Missouri Territory, 1819-1820: America's First Biodiversity Ineventory, Hugh H. Genoways, Brett C. Ratcliffe

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

It is our thesis that members of the Stephen Long Expedition of 1819-20 completed the first biodiversity inventory undertaken in the United States at their winter quarters, Engineer Cantonment, Missouri Territory, in the modern state of Nebraska. This accomplishment has been overlooked both by biologists and historians, but it should rank among the most significant accomplishments of the expedition. The results of this inventory allow us to evaluate the environmental, faunal, and floral changes along the Missouri River in the intervening nearly 190 years. The historical records form a visual image of a dynamic riverine system in which a highly …

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Mapping Agricultural Land Cover For Hydrologic Modeling In The Platte River Watershed Of Nebraska, Patti R. Dappen, Ian C. Ratcliffe, Cullen R. Robbins, James W. Merchant Jan 2008

Mapping Agricultural Land Cover For Hydrologic Modeling In The Platte River Watershed Of Nebraska, Patti R. Dappen, Ian C. Ratcliffe, Cullen R. Robbins, James W. Merchant

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

Throughout the western United States, natural resources managers are attempting to address the growing, and often competing, demands that municipal, agricultural and environmental interests have for water. The Platte River Cooperative Hydrology Study (COHYST) is a multi-agency effort that seeks to improve understanding of the ecology, geology, and hydrology of the Platte River watershed in central and western Nebraska. Information regarding the types, areal extent, and locations of crops (especially irrigated crops) is critical for estimating consumptive use of water. Digital land-cover and land-use datasets of the central and western Platte River valley have been prepared for four years: 1982, …

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Conversation Goals And The Surveys, Monitoring, Research, And Management Needed To Support Them, Lawrence J. Niles, Humphrey P. Sitters, Amanda D. Dey, Philip W. Atkinson, Allan J. Baker, Karen A. Bennett, Roberto Carmona, Kathleen E. Clark, Nigel A. Clark, Carmen Espoz, Patricia M. González, Brian A. Harrington, Daniel E. Hernández, Kevin S. Kalasz, Richard G. Lathrop, Ricardo N. Matus, Clive D. T. Minton, R. I. Morrison, Mark K. Peck, William Pitts, Robert A. Robinson, Inês L. Serrano Jan 2008

Conversation Goals And The Surveys, Monitoring, Research, And Management Needed To Support Them, Lawrence J. Niles, Humphrey P. Sitters, Amanda D. Dey, Philip W. Atkinson, Allan J. Baker, Karen A. Bennett, Roberto Carmona, Kathleen E. Clark, Nigel A. Clark, Carmen Espoz, Patricia M. González, Brian A. Harrington, Daniel E. Hernández, Kevin S. Kalasz, Richard G. Lathrop, Ricardo N. Matus, Clive D. T. Minton, R. I. Morrison, Mark K. Peck, William Pitts, Robert A. Robinson, Inês L. Serrano

Studies in Avian Biology

No abstract provided.

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Literature Cited, Lawrence J. Niles, Humphrey P. Sitters, Amanda D. Dey, Philip W. Atkinson, Allan J. Baker, Karen A. Bennett, Roberto Carmona, Kathleen E. Clark, Nigel A. Clark, Carmen Espoz, Patricia M. González, Brian A. Harrington, Daniel E. Hernández, Kevin S. Kalasz, Richard G. Lathrop, Ricardo N. Matus, Clive D. T. Minton, R. I. Morrison, Mark K. Peck, William Pitts, Robert A. Robinson, Inês L. Serrano Jan 2008

Literature Cited, Lawrence J. Niles, Humphrey P. Sitters, Amanda D. Dey, Philip W. Atkinson, Allan J. Baker, Karen A. Bennett, Roberto Carmona, Kathleen E. Clark, Nigel A. Clark, Carmen Espoz, Patricia M. González, Brian A. Harrington, Daniel E. Hernández, Kevin S. Kalasz, Richard G. Lathrop, Ricardo N. Matus, Clive D. T. Minton, R. I. Morrison, Mark K. Peck, William Pitts, Robert A. Robinson, Inês L. Serrano

Studies in Avian Biology

No abstract provided.

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Resource Heterogeneity Moderates The Biodiversity-Function Relationship In Real World Ecosystems, Jason M. Tylianakis, Tatyana A. Rand, Ansgar Kahman, Alexandra-Maria Klein, Nina Buchmann, Jörg Perner, Teja Tscharntke Jan 2008

Resource Heterogeneity Moderates The Biodiversity-Function Relationship In Real World Ecosystems, Jason M. Tylianakis, Tatyana A. Rand, Ansgar Kahman, Alexandra-Maria Klein, Nina Buchmann, Jörg Perner, Teja Tscharntke

Entomology Papers from Other Sources

Numerous recent studies have tested the effects of plant, pollinator, and predator diversity on primary productivity, pollination, and consumption, respectively. Many have shown a positive relationship, particularly in controlled experiments, but variability in results has emphasized the context-dependency of these relationships. Complementary resource use may lead to a positive relationship between diversity and these processes, but only when a diverse array of niches is available to be partitioned among species. Therefore, the slope of the diversity-function relationship may change across differing levels of heterogeneity, but empirical evaluations of this pattern are lacking. Here we examine three important functions/properties in different …

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Improving A Pcr-Based Method For Identification Of Ralstonia Solanacearum In Natural Sources Of West Malaysia, Reza Khakvar, Kamaruzaman Sijam, Mui Yun Wong, Son Radu, Kwai Lin Thong Jan 2008

Improving A Pcr-Based Method For Identification Of Ralstonia Solanacearum In Natural Sources Of West Malaysia, Reza Khakvar, Kamaruzaman Sijam, Mui Yun Wong, Son Radu, Kwai Lin Thong

Research Publications (2006 to 2010)

Ralstonia solanacearum, a soil-borne plant pathogen, causes lethal wilting disease of more than 200 plants worldwide. This very wide host range covers both monocots and dicots, extending from annual plants to trees and shrubs. Although generally it's considered as a plant pathogen, R. solanacearum behaves primarily as a saprophytic bacterium able to survive for long periods of time in various natural habitats such as surface waters and different types of soils. Epidemiological and ecological studies on pathogen distribution in the environment are seriously hindered by the lack of efficient detection method especially when the concentration of the pathogen is either …

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