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Terrestrial and Aquatic Ecology Commons

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2007

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Articles 1 - 30 of 87

Full-Text Articles in Terrestrial and Aquatic Ecology

A Guide To The Tallgrass Prairies Of Eastern Nebraska And Adjacent States, Paul A. Johnsgard Dec 2007

A Guide To The Tallgrass Prairies Of Eastern Nebraska And Adjacent States, Paul A. Johnsgard

Papers in Ornithology

Contents

Part 1: Ecology of the Tallgrass Prairie

Part 2: Plants of the Tallgrass Prairies:
Checklist of Prairie & Grassland Plants of Nebraska; Relative Frequencies of Grasses, Spring Creek and Nine-mile Prairies; Twenty Most Abundant Fall Forbs, Spring Creek and Nine-mile Prairies; Typical Shrubs, Forbs, Grasses & Sedges of Eastern Nebraska Tallgrass Prairies; English: Latin Name Equivalents of 370 Tallgrass Prairie Plants; Latin: English Name Equivalents of 370 Tallgrass Prairie Plants Identification Keys to Some Common Nebraska Grassland Forbs

Part 3: Animals of the Tallgrass Prairies
Greater Prairie-chickens and Native Prairies; Seasonal Checklist of Nebraska Tallgrass Ecoregion Birds (Gage County); …


Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Progress Report, Period Ending: December 31, 2007, Margaret N. Rees Dec 2007

Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Progress Report, Period Ending: December 31, 2007, Margaret N. Rees

Limnological Studies

  • The limnologist position has been announced.
  • Project 1: Review of the draft Boulder Basin Adaptive Management Plan is underway.
  • Project 2: Development of a white paper expressing the joint needs of the entities involved in Water 2025 projects is being coordinated.
  • Project 3: A bibliographic reference spreadsheet organizing literature citations related to quagga and zebra mussel research has been completed.
  • Project 4: A comprehensive literature search of Lake Mead limnology is well underway; an Access database has been designed to organize reference citations; and a special collections library at UNLV is being established to house original rare documents and other …


Occurrence And Biological Effect Of Exogenous Steroids In The Elkhorn River, Nebraska, Usa, Alan S. Kolok, Daniel D. Snow, Satomi Kohno, Marlo K. Sellin, Louis J. Guillette Jr. Dec 2007

Occurrence And Biological Effect Of Exogenous Steroids In The Elkhorn River, Nebraska, Usa, Alan S. Kolok, Daniel D. Snow, Satomi Kohno, Marlo K. Sellin, Louis J. Guillette Jr.

Biology Faculty Publications

Recent studies of surface waters in North America, Japan, and Europe have reported the presence of steroidogenic agents as contaminants. The current study has three objectives: 1) to determine if steroidogenic compounds are present in the Elkhorn River, 2) to determine if sediments collected from the Elkhorn River can act as a source of steroidogenic compounds to aquatic organisms, and 3) to determine if site-specific biological effects are apparent in the hepatic gene expression of fathead minnows. Evidence was obtained using three approaches: 1) deployment of polar organic chemical integrative samplers (POCIS), 2) deployment of caged fathead minnows, and 3) …


Designation Of A Neotype For Leptodactylus Gracilis (Duméril And Bibron, 1840) (Amphibia: Leptodactylidae), Rafael O. De Sá, A. Dubois, A. Ohler Dec 2007

Designation Of A Neotype For Leptodactylus Gracilis (Duméril And Bibron, 1840) (Amphibia: Leptodactylidae), Rafael O. De Sá, A. Dubois, A. Ohler

Biology Faculty Publications

The examination of the preserved specimens in the herpetological collection of the Museum National d'Histoire Naturelle, along with a review of the original literature, indicates that no extant specimen can be undoubtedly identified as the holotype of Leptodactylus gracilis (DumCri.l and Bibron, 1840). Furthermore, it revealed that the type locality recently assigned to this taxon is in error.


The International Lepidoptera Survey Newsletter, December 2007, International Lepidoptera Survey, Kenneth E. Davenport, Ray E. Stanford, Robert L. Langston Nov 2007

The International Lepidoptera Survey Newsletter, December 2007, International Lepidoptera Survey, Kenneth E. Davenport, Ray E. Stanford, Robert L. Langston

International Lepidoptera Survey Newsletter

Contents (pages 1-66)

Title

Flight Periods of California Butterflies for “Resident Species,” Subspecies and Most Strays to the State (2007)

Authors

Kenneth E. Davenport, Ray E. Stanford and Robert L. Langston

Abstract

Normal flight periods and early/late records for resident species, subspecies and regular strays of butterflies of California are presented below.. Many subspecies or populations in the state are distinctive and may prove to merit species recognition by specialists in the future.


Do The Size And Landscape Context Of Forest Openings Influence The Abundance And Breeding Success Of Shrubland Songbirds In Southern New England?, Robert A. Askins, Benjamin Zuckerberg, Leah Novak Oct 2007

Do The Size And Landscape Context Of Forest Openings Influence The Abundance And Breeding Success Of Shrubland Songbirds In Southern New England?, Robert A. Askins, Benjamin Zuckerberg, Leah Novak

Biology Faculty Publications

Early successional birds have declined in the northeastern United States due to the regeneration of forest on abandoned farm fields and the suppression of natural disturbances that once provided appropriate habitat. These species have become increasingly dependent on early successional habitats generated by such activities as timber harvesting. Recent approaches of timber harvesting, which range from single-tree harvesting to clearcutting, create forest openings of different sizes and configurations embedded in landscapes with different land use patterns. To assess the importance of forest openings created by timber harvesting for shrubland birds, we surveyed birds on 50m radius plots in 34 harvest …


Seasonal Variation In Diet Of The Cotton Rat (Sigmodon Hispidus) Based On Fecal Analysis, Lynn A. Walker Oct 2007

Seasonal Variation In Diet Of The Cotton Rat (Sigmodon Hispidus) Based On Fecal Analysis, Lynn A. Walker

Biological Sciences Theses & Dissertations

Cotton rats, Sigmodon hispidus, live in oldfields, habitats with a variety of mostly herbaceous plants. Based on other studies, the hispid cotton rat eats predominantly grasses, but grasses rarely are the only food. Fecal samples were collected each month during an ongoing capture-mark-release demographic study of the rodent community at a location in southern Chesapeake, Virginia. In the lab, five fecal pellets per animal were stained, placed on a microscope slide, and covered with starch-gel medium and coverslip. Then a clear nail polish was applied to produce a semi-permanent slide. Using a microscope and a set of reference slides, plant …


Summer/Fall 2007, Nsu Oceanographic Center Sep 2007

Summer/Fall 2007, Nsu Oceanographic Center

Currents

No abstract provided.


Effect Of Wave Action On Movement In The Owl Limpet, Lottia Gigantea, In Santa Cruz, California, William G. Wright, James W. Nybakken Sep 2007

Effect Of Wave Action On Movement In The Owl Limpet, Lottia Gigantea, In Santa Cruz, California, William G. Wright, James W. Nybakken

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The critical role of wave energy in the ecology of nearshore organisms is widely accepted, based primarily on biotic correlations over large scales of time and space. Much less is known about how large waves impact the behavioral ecology of individual organisms. Theoretical considerations and measurements of tenacity predict that intertidal gastropods should minimize the chances of dislodgement during periods of high waves by remaining stationary. We tested this prediction by observing a population of the owl limpet, Lottia gigantea G. B. Sowerby I, 1834, in a range of sea conditions. We found the proportion of the population moving during …


Land Cover Types Of The Las Vegas Wash, Nevada, Seth A. Shanahan, Dave Silverman, Art Ehrenberg Sep 2007

Land Cover Types Of The Las Vegas Wash, Nevada, Seth A. Shanahan, Dave Silverman, Art Ehrenberg

Publications (WR)

Vegetation type, extent, continuity, and structure are some of the most important factors that determine wildlife diversity and distribution. Other contributing factors that shape wildlife communities include disturbance, competition, climate, and water availability. Because vegetation communities in the southwestern U.S. gradate sharply along zones of soil moisture, wildlife are often restricted to specific vegetation types. Along the Las Vegas Wash (Wash), Nevada, more than 250 wildlife species have been documented to occur in distinct wetland, riparian, and upland vegetation types. Recent studies have investigated the diversity and distribution of amphibians, birds, fishes, mammals, and reptiles (Shanahan 2005, 2005a, Van Dooremolen …


Description Of The Tadpole Of Leptodactylus Pustulatus Peters, 1870 (Anura: Leptodactylidae), Rafael O. De Sá, Reuber Brandão, Lorena Dall'ara Guimarães Jul 2007

Description Of The Tadpole Of Leptodactylus Pustulatus Peters, 1870 (Anura: Leptodactylidae), Rafael O. De Sá, Reuber Brandão, Lorena Dall'ara Guimarães

Biology Faculty Publications

The external morphology and oral disc of the tadpole of Leptodactylus pustulatus Peters, 1870, are described and illustrated for Gosner stage 39. The internal oral anatomy was analyzed with SEM at Gosner stage 36 whereas chondrocranial anatomy is reported for Gosner stage 35. The overall characteristics do not depart from those known for the genus Leptodactylus and they particularly agree for those of the melanonotus species group. The labial tooth row formula is 2(2)/3. Observations are presented that suggest that L. pustulatus engages in larval parental care.

Resumo

São descritas a morfologia externa e o disco oral do girino de …


Resources And The Rise & Fall Of Civilizations, Fred Pearce Jul 2007

Resources And The Rise & Fall Of Civilizations, Fred Pearce

New England Journal of Public Policy

This article is about the world's climate and how it has changed from the beginning of time. The author contributes these changes to political moves, nature, and the effects of humanity.


Climate. A Period Of Consequence: Environmental Literature Of 2006, Shaun O'Connell Jul 2007

Climate. A Period Of Consequence: Environmental Literature Of 2006, Shaun O'Connell

New England Journal of Public Policy

The author talks about the consequences of not respecting the climate and understanding global warming will cause ecocide and our own extinction.


Benthic Biological Monitoring Program Of The Elizabeth River Watershed (2006), Daniel M. Dauer Jul 2007

Benthic Biological Monitoring Program Of The Elizabeth River Watershed (2006), Daniel M. Dauer

Elizabeth River Reports

Executive Summary

Macrobenthic communities of the Elizabeth River watershed have been quantitatively sampled since summer 1999. This report presents the data from the eigth year of sampling in 2006. The three objectives of the Benthic Biological Monitoring Program of the Elizabeth River watershed are: (1) To characterize the health of the tidal waters of the Elizabeth River watershed as indicated by the structure of the benthic communities. (2) To conduct trend analyses on long-term data at 14 fixed-point stations to relate temporal trends in the benthic communities to changes in water and/or sediment quality. Trend analyses will be updated annually …


Green Crab Management: Reduction Of A Marine Invasive Population, Catherine E. De Rivera, Edwin D. Grosholz, Greg Ruiz, Amy A. Larson, Rebecca L. Kordas, Mark Sytsma Jul 2007

Green Crab Management: Reduction Of A Marine Invasive Population, Catherine E. De Rivera, Edwin D. Grosholz, Greg Ruiz, Amy A. Larson, Rebecca L. Kordas, Mark Sytsma

Environmental Science and Management Faculty Publications and Presentations

The overall goal of this study is to develop and demonstrate the capacity for local eradication of adult Carcinus maenas, European green crabs. This represents a conceptual shift in development of management options to address established invasions in marine systems, extending and exploring the application of terrestrial successes in this area. Specifically, this project tests the effects of removing green crabs from Bodega Harbor on the green crab population and on native shore crabs eaten by green crabs.


Yosemite Butterflies (Text), 2nd Edition, Kenneth E. Davenport May 2007

Yosemite Butterflies (Text), 2nd Edition, Kenneth E. Davenport

The Taxonomic Report of the International Lepidoptera Survey

The author, Kenneth E, Davenport, has collected or observed butterflies extensively in the Yosemite region (at least 90 collecting or observation days) since August 1963. Information for this study began with Davenport obtaining a copy of Garth and Tilden’s 1963 Yosemite Butterflies in 1970. The annual Season Summaries for California published in the News of the Lepidopterists’ Society between 1975 and 2006 have been checked for records. The common English and scientific names used in this publication mostly follow the names used by the International Lepidoptera Survey (TILS) except in a few cases.

The following individuals contributed information: George T. …


The Valuation Of Nature: An Examination Of Benefits And Costs Associated With Duck Nesting Structures And The Marginal Duck Recruit, Tessa Haagenson May 2007

The Valuation Of Nature: An Examination Of Benefits And Costs Associated With Duck Nesting Structures And The Marginal Duck Recruit, Tessa Haagenson

Honors Capstones

Capstone submitted as a graduation requirement for the BSU Honors Program.


Animal Welfare Perspectives On Recreational Angling, Steven J. Cooke, Lynne U. Sneddon May 2007

Animal Welfare Perspectives On Recreational Angling, Steven J. Cooke, Lynne U. Sneddon

Animal Welfare Collection

Fish captured by recreational anglers are often released either voluntarily or because of harvest regulations in a process called ‘‘catch-and-release’’. Catch-and-release angling is thought to be beneficial for the conservation of fish stocks based on the premise that most of the fish that are released survive. However, expanding interest in animal welfare has promoted debate regarding the ethics of catch-and-release angling. There is a growing recognition that fish can consciously experience nociception and that they have some capacity to experience pain and fear. Indeed, empirical anatomical, physiological, and behavioural evidence supports the notion that fish could experience these two forms …


A Description Of A New Subspecies Of Lycaena Phlaeas (Lycaenidae: Lycaeninae) From Montana, United States, With A Comparative Study Of Old And New World Populations, Steve Kohler May 2007

A Description Of A New Subspecies Of Lycaena Phlaeas (Lycaenidae: Lycaeninae) From Montana, United States, With A Comparative Study Of Old And New World Populations, Steve Kohler

The Taxonomic Report of the International Lepidoptera Survey

The Palaearctic, Oriental, and Ethiopian Region subspecies of Lycaena phlaeas are briefly discussed. A more detailed account of the North American subspecies is presented, and a new subspecies, L. p. weberi, from the Sweet Grass Hills, Montana is described. The possibility that the eastern United States subspecies hypophlaeas was introduced from the Old World is discussed; however no conclusion can be reached with certainty. The relationship between Old World and New World subspecies of L. phlaeas is discussed. Evidence presented supports the treatment of New World populations as subspecies of L. phlaeas.


The Tadpole Of Eupsophus Queulensis (Anura, Cycloramphidae), Diana R. Cárdenas-Rojas, Alberto Veloso, Rafael O. De Sá May 2007

The Tadpole Of Eupsophus Queulensis (Anura, Cycloramphidae), Diana R. Cárdenas-Rojas, Alberto Veloso, Rafael O. De Sá

Biology Faculty Publications

The genus Eupsophus is characterized by endotrophic larvae that inhabit water-filled cavities. The larvae feed from large yolk reserves during metamorphosis. The external morphology has been described for four of the ten known species and data on larval chondrocranial morphology are available only for one. We describe the extema1 morphology, oral disc and chondrocranial anatomy of the larvae of Eupsophus queulensis. The characteristics of E. queulensis tadpoles are compared with those of other Eupsophus larvae.


Improving Natural History Research With Image Analysis: The Relationship Between Skin Color, Sex, Size And Stage In Adult Red-Spotted Newts, Andrew K. Davis, Kristine L. Grayson May 2007

Improving Natural History Research With Image Analysis: The Relationship Between Skin Color, Sex, Size And Stage In Adult Red-Spotted Newts, Andrew K. Davis, Kristine L. Grayson

Biology Faculty Publications

Natural history researchers are increasingly using digital cameras and computer software to measure their study animals. Adult Red-spotted Newts (Notophthalmus viridescens viridescens) are known to display a range of skin colors, from brown to green, but it has not been possible to quantify this variation until the advent of image analysis technology. We used an image analysis approach to compare skin color between sexes, across a range of sizes, and between aquatic and post-breeding (emigrating to the terrestrial habitat) stage adult newts. From 232 individuals (53% male, 47% female) we documented a wide but subtle range of skin …


Linking Flux Network Measurements To Continental Scale Simulations: Ecosystem Carbon Dioxide Exchange Capacity Under Non-Water-Stressed Conditions, Katherine B. Owen, John Tenhunen, Markus Reichstein, Quan Wang, Eva Falge, Ralf Geyer, Xiangming Xiaos, Paul Stoy, Christof Ammann, Altaf Arain, Marc Aubinet, Mika Aurela, Christian Bernhofer, Bogdan Chojnicki, Andre Granier, Thomas Gruenwald, Julian Hadley, Bernard Heinesch, David Hollinger, Alexander Knohl, Werner Kutsch, Annalea Lohila, Tilden Meyers, Eddy Moors, Christine Moureaux, Kim Pilegaard, Nobuko Saigusa, Shashi Verma, Timo Vesala, Chris Vogel Apr 2007

Linking Flux Network Measurements To Continental Scale Simulations: Ecosystem Carbon Dioxide Exchange Capacity Under Non-Water-Stressed Conditions, Katherine B. Owen, John Tenhunen, Markus Reichstein, Quan Wang, Eva Falge, Ralf Geyer, Xiangming Xiaos, Paul Stoy, Christof Ammann, Altaf Arain, Marc Aubinet, Mika Aurela, Christian Bernhofer, Bogdan Chojnicki, Andre Granier, Thomas Gruenwald, Julian Hadley, Bernard Heinesch, David Hollinger, Alexander Knohl, Werner Kutsch, Annalea Lohila, Tilden Meyers, Eddy Moors, Christine Moureaux, Kim Pilegaard, Nobuko Saigusa, Shashi Verma, Timo Vesala, Chris Vogel

School of Natural Resources: Faculty Publications

This paper examines long-term eddy covariance data from 18 European and 17 North American and Asian forest, wetland, tundra, grassland, and cropland sites under nonwater- stressed conditions with an empirical rectangular hyperbolic light response model and a single layer two light-class carboxylase-based model. Relationships according to ecosystem functional type are demonstrated between empirical and physiological parameters, suggesting linkages between easily estimated parameters and those with greater potential for process interpretation. Relatively sparse documentation of leaf area index dynamics at flux tower sites is found to be a major difficulty in model inversion and flux interpretation. Therefore, a simplification of the …


Bionomic Studies Of Papilio Demoleus Linnaeus, The Citrus Butterfly, (Lepidoptera: Papilionidae), From Lower Sindh, Pakistan, Arshad Munir, Nikhat Yasmin Siddiqui, Muhammad A. Rafi, Harry Pavulaan, David Wright Apr 2007

Bionomic Studies Of Papilio Demoleus Linnaeus, The Citrus Butterfly, (Lepidoptera: Papilionidae), From Lower Sindh, Pakistan, Arshad Munir, Nikhat Yasmin Siddiqui, Muhammad A. Rafi, Harry Pavulaan, David Wright

The Taxonomic Report of the International Lepidoptera Survey

Biological parameters of Papilio demoleus Linnaeus, the Citrus Butterfly, in Tando Muhammad Khan, lower Sindh, Pakistan are presented. This major agricultural pest was reared on Murraya koenigii (L.) Spreng. (Curry Leaf) and ten different varieties of Citrus sp. (Citrus) plants. The length of the adult mating period ranged 5 to 8 hours. Following mating, females laid 27.7 ± 3.3 eggs. Eggs hatched in 1.5 to 7 days. Mean durations of larval instars were 1.8 ± 0.1 (minimum) and 2.9 ± 0.1 (maximum) days respectively. Pupal duration was 5.5 to 20 days. Biotic factors including predators [praying mantis, ants, Common Garden …


Spring 2007, Nsu Oceanographic Center Apr 2007

Spring 2007, Nsu Oceanographic Center

Currents

No abstract provided.


The Tadpole Of Leptodactylus Notoaktites Heyer, 1978 (Anura, Leptodactylidae), Rafael O. De Sá, José A. Langone, Magno V. Segalla Apr 2007

The Tadpole Of Leptodactylus Notoaktites Heyer, 1978 (Anura, Leptodactylidae), Rafael O. De Sá, José A. Langone, Magno V. Segalla

Biology Faculty Publications

The external morphology and oral disc of the tadpole of Leptodactylus notoaktites Heyer, 1978, are described and illustrated for Gosner’s stage 33. The internal oral anatomy was analyzed under SEM at Gosner’s stage 36 whereas chondrocranial anatomy is reported for Gosner’ stage 38. The morphology of this tadpole is compared with those available for other species of the L. mystaceus complex. The overall characteristics do not depart from those known for the genus Leptodactylus and they particularly agree for those of the fuscus species group. The labial tooth row formula is 2(2)/3.


Behavioral Enhancement Of Onshore Transport By Postlarval Caribbean Spiny Lobster (Panulirus Argus), Jason Seth Goldstein Apr 2007

Behavioral Enhancement Of Onshore Transport By Postlarval Caribbean Spiny Lobster (Panulirus Argus), Jason Seth Goldstein

Biological Sciences Theses & Dissertations

The onshore transport of meroplanktonic marine larvae or postlarvae is often complex, involving both active (i.e., behavior, swimming) and passive (i.e., oceanographic elements) transport mechanisms. Behaviors that modify passive transport have presumably evolved to situate larvae in settlement habitats where survival is enhanced. Active transport mechanisms have not been described for the puerulus postlarvae of any species of spiny lobster, despite their extraordinary mobility and known preference for specific settlement habitats. In the Florida Keys, for example, Caribbean spiny lobster (Panulirus argus) pueruli travel from oceanic waters into coastal areas where they settle within bushy, red macroalgae. I …


Interagency Science And Research: Quarterly Progress Report, Period Ending March 31, 2007, Margaret N. Rees Mar 2007

Interagency Science And Research: Quarterly Progress Report, Period Ending March 31, 2007, Margaret N. Rees

Interagency Science and Research Strategy

  • Completed a beta-test of a science proposal review process with the assistance of four external reviewers.
  • Participated in workshop entitled “Biological Soil Crusts: Ecology and Management.
  • Completed review of the interagency Chesapeake Bay Program science strategy and added this information to the Science Strategy Database.
  • Completed a preliminary review of agency science delivery capabilities.


A New Subspecies Of Colias Gigantea From Arctic Alaska (Pieridae), Jack L. Harry Mar 2007

A New Subspecies Of Colias Gigantea From Arctic Alaska (Pieridae), Jack L. Harry

The Taxonomic Report of the International Lepidoptera Survey

A new subspecies of Colias gigantea Strecker from the 'north slope' of Alaska is described.


The Yosemite Butterflies: Color Plates, Kenneth E. Davenport, Norbet G. Kondla, Charles Grisham, Howard Grisham Mar 2007

The Yosemite Butterflies: Color Plates, Kenneth E. Davenport, Norbet G. Kondla, Charles Grisham, Howard Grisham

The Taxonomic Report of the International Lepidoptera Survey

This compilation of butterfly illustrations for the Yosemite region is intended primarily as a supplement to the text publication on Yosemite butterflies (Davenport, 2004, and Davenport, 2007, 2nd edition). Taxonomic interpretations and names follow these documents. Common names and authors of the scientific names are given in the text publication. This color plates publication also functions as a stand-alone document for naturalists and lepidopterists with need for reference illustrations only.

Butterflies were selected from Ken Davenport’s private collection to illustrate most species and subspecies for the Yosemite region. If good quality specimens were available from within the region, we often …


Water In Beaver Dam Wash And Lytle Preserve, Stanley L. Welsh Feb 2007

Water In Beaver Dam Wash And Lytle Preserve, Stanley L. Welsh

Books by Faculty of the Monte L. Bean Life Science Museum

This short work is derived from a manuscript prepared for presentation in a water adjudication hearing, following a proposal to pipe water from wells in Beaver Dam Wash for transfer across state lines to be used for culinary and other purposes in Mesquite, Nevada. The Wash is estimated to yield 2000 acre feet of water annually, mostly as subsurface flow, at the Arizona line. About a third of that amount is already appropriated by users along the Wash in Utah, but there are applications pending for more than 100,000 acre feet in Utah. Thus, the Wash is already oversubscribed by …