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Articles 4141 - 4170 of 5034
Full-Text Articles in Ecology and Evolutionary Biology
Red Rock Desert Learning Center Core Group Meeting: October 19, 2004, Red Rock Desert Learning Center
Red Rock Desert Learning Center Core Group Meeting: October 19, 2004, Red Rock Desert Learning Center
Reports (RRLC)
- Introductions (5 min.)
- Approval of Minutes from September 21 Meeting (5 minutes)
- Review & Discussion of Suggested Core Curriculum Themes – Jeanne Klockow/Michael Reiland (20 min.)
- Update from Line and Space Architects – Les Wallach/Henry Tom (20 min.)
- Standing Reports (20 minutes)
A. UNLV/CESU Update – Nancy Flagg
C. BLM Update – Michael Reiland - Committee Reports (10 min.)
A. Building – Angie Lara
B. Design Oversight – David Frommer
C. Educational Programs – Paul Buck
D. Fund-Raising & Partnerships – Blaine Benedict
E. NEPA – Charles Carroll
F. Operations – Jack Ramsey
G. Other Uses – Pat Williams
H. Wild …
Fall 2004, Nsu Oceanographic Center
Benthic Biological Monitoring Program Of The Elizabeth River Watershed (2003), Daniel M. Dauer
Benthic Biological Monitoring Program Of The Elizabeth River Watershed (2003), 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 fifth year of sampling in 2003. 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 …
Red Rock Desert Learning Center Core Group Meeting: September 21, 2004, Red Rock Desert Learning Center
Red Rock Desert Learning Center Core Group Meeting: September 21, 2004, Red Rock Desert Learning Center
Reports (RRLC)
- Introductions (5 min.)
- Approval of Minutes from August 17 Meeting (5 minutes)
- Potential Tie-in with City of Las Vegas New Directions YouthArts Program –
Markus Tracy (20 min.) - Presentation of Education in the Environment Curriculum Matrix and correlation to
RRDLC curriculum development – Jeanne Klockow (30 min.) - Discussion of Policy-making Board for the Center – Michael Reiland (15 min.)
- Discussion of Observatory Location – Michael Reiland (25 min.)
- Standing Reports (20 minutes)
A. Line and Space Architects Update – Les Wallach/Henry Tom
B. UNLV/CESU Update – Nancy Flagg
C. RRCNCA Capital Improvements Update – BLM - Committee Reports (10 min.)
A. …
Education In The Environment Partnership, Public Lands Institute
Education In The Environment Partnership, Public Lands Institute
Presentations (PLI Education)
- Update on Oliver Ranch
- Update on Forever Earth
- Update on WOW on the Water
The Prairie Naturalist Volume 36, No.3 September 2004
The Prairie Naturalist Volume 36, No.3 September 2004
The Prairie Naturalist
OVERLAND MOVEMENTS AND HABITAT USE OF MALLARD BROODS DEPARTING OVERWATER NESTING STRUCTURES ▪ J. D. Stafford, L. D. Flake, and P. W. Mammenga
NEST SITE CHARACTERISTICS OF EASTERN WILD TURKEY IN NORTHEASTERN SOUTH DAKOTA ▪ R. D. Shields and L. D. Flake
WHITE-TAILED DEER INFECTEUWITH STAPHYLOCOCCUS HYICUS IN SOUTH DAKOTA ▪ T. J. Zimmerman, J. A. Jenks, and A. E. Pillatzki
CLOSTRIDIUM PERFRINGENS TYPE A IN A FREE-RANGING FAWN? ▪ T. J. Brinkman, J. A. Jenks, C. S. DePerno, and B. S. Haroldson
BUFFLEHEAD BREEDING ACTIVITY IN SOUTH-CENTRAL NORTH DAKOTA ▪ G. A. Knutsen and J. C. King
POTENTIAL MULTIPLE …
Oliver Ranch Core Group Meeting: August 17, 2004, Red Rock Desert Learning Center
Oliver Ranch Core Group Meeting: August 17, 2004, Red Rock Desert Learning Center
Reports (RRLC)
- Introductions (5 minutes)
- Approval of Minutes from June 15 Meeting (5 minutes)
- Review of Draft Talking Points/FAQ – Nancy Flagg (30 min)
- Discussion of Wild Horse and Burro Facility – Billie Young (30 min.)
- Standing Reports (30 minutes)
A. Line and Space Update – Les Wallach/Henry Tom
B. UNLV/CESU Update – Peg Rees/Nancy Flagg
C. RRCNRA Capital Improvements Update – Mark Morse/Michael Reiland - ORSS Committee Reports (15 minutes)
A. Design Oversight – David Frommer
B. Educational Programs – Paul Buck
C. Fund-Raising & Partnerships – Blaine Benedict
D. NEPA – Charles Carroll
E. Operations – Jack Ramsey
F. Other Uses …
Vegetation Characteristics Associated With Small Mammal Populations In The Las Vegas Wash, Christine Therese Herndon
Vegetation Characteristics Associated With Small Mammal Populations In The Las Vegas Wash, Christine Therese Herndon
UNLV Theses, Dissertations, Professional Papers, and Capstones
Percent litter, average litter depth, percent bare ground, vegetation density, vegetation canopy, and distance to an ecotone boundary were measured and compared to small mammal capture locations in the Las Vegas Wash. Neotoma lepida appear to be greatly dependent upon the foliage litter of T. ramosissima. Alternatively, ecotone boundaries appear to be the most important factor affecting Dipodomys merriami distributions. Peromyscus eremicus distributions may be predicted based on vegetation density and increased canopy during shorter, winter torpor periods. Chaetodipus penicillatus were consistently associated with dense, seed-bearing vegetation, although C. penicillatus is extremely opportunistic and vegetation density should not limit their …
Crocodylia, Alligator Mississippiensis (American Alligator): Homing And Site Fidelity, John W. Woolard, Richard M. Engeman, Henry T. Smith, Mark Nelson
Crocodylia, Alligator Mississippiensis (American Alligator): Homing And Site Fidelity, John W. Woolard, Richard M. Engeman, Henry T. Smith, Mark Nelson
United States Department of Agriculture Wildlife Services: Staff Publications
Crocodylia, Alligator mississippiensis (American Alligator): Homing and Site Fidelity
Oliver Ranch Core Group Meeting: July 20, 2004, Red Rock Desert Learning Center
Oliver Ranch Core Group Meeting: July 20, 2004, Red Rock Desert Learning Center
Reports (RRLC)
- Introductions (5 minutes)
- Approval of Minutes from June 15 Meeting (5 minutes)
- Review of Draft Talking Points/FAQ – Nancy Flagg (30 min)
- Discussion of Wild Horse and Burro Facility – Billie Young (30 min.)
- Standing Reports (30 minutes)
A. Line and Space Update – Les Wallach/Henry Tom
B. UNLV/CESU Update – Peg Rees/Nancy Flagg
c. RRCNRA Capital Improvements Update – Mark Morse/Michael Reiland - ORSS Committee Reports (15 minutes)
A. Design Oversight – David Frommer
B. Educational Programs – Paul Buck
C. Fund-Raising & Partnerships – Blaine Benedict
D. NEPA – Charles Carroll
E. Operations – Jack Ramsey
F. Other Uses …
Oliver Ranch Core Group Meeting: June 15, 2004, Red Rock Desert Learning Center
Oliver Ranch Core Group Meeting: June 15, 2004, Red Rock Desert Learning Center
Reports (RRLC)
- Approval of Minutes from May 18 Meeting
- UNLV/CESU Update – Peg Rees/Nancy Flagg
A. ORSS History and Talking Points
B. Presentations to Civic Groups - Line and Space Update – Les Wallach/Henry Tom
- RRCNRA Capital Improvements Update – Mark Morse
- ORSS Project Timeline – Michael Reiland
- Linkages Between ORSS Curriculum and Building Design – Paul Buck
- Video Interviews of CCSD 5th Graders – CCSD Staff
- ORSS Sub-Committee Reports
-- Status of Committee Mission Statements
-- Committee Responses to L&S Draft
-- Proposal to Establish a Building Committee
A. Operations – Jack Ramsey
B. Wild Horse & Burro – Billie Young
C. …
The Prairie Naturalist Volume 36, No.2 June 2004
The Prairie Naturalist Volume 36, No.2 June 2004
The Prairie Naturalist
PREDICTING NEONATAL AGE OF WHITE-TAILED DEER IN THE NORTHERN GREAT PLAINS . . T. J. Brinkman, K. L. Monteith, J. A. Jenks, and C. S. DePemo
DUCK NESTING ON ROTATIONAL AND CONTINUOUS GRAZED PASTURES IN NORTH DAKOTA . R. K. Murphy, D. J. Schindler, and R. D. Crawford
MORPHOLOGY OF LESSER PRAIRIE-CHICKENS IN KANSAS ▪ C. A. Hagen, J. C. Pitman, R. J. Robel, and R. D. Applegate
DAILY AND SEASONAL BEHAVIOR OF BISON ON AN OKLAHOMA TALLGRASS PRAIRIE . E. J. Maichak, K. L. Schuler, and M. E. Payton
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA 2003 ▪ R. N. …
Oliver Ranch Core Group Meeting: May 18, 2004, Red Rock Desert Learning Center
Oliver Ranch Core Group Meeting: May 18, 2004, Red Rock Desert Learning Center
Reports (RRLC)
- Where have we been and where are we going?
- Line and Space Report
- Committee Reports
- Future Core Group Meetings
Survey Of Anuran Populations Within Minnesota, Chris Thorman
Survey Of Anuran Populations Within Minnesota, Chris Thorman
Honors Capstones
Capstone submitted as a graduation requirement for the BSU Honors Program.
Response Of A Peatland Ecosystem To Stratospheric Ozone Reduction In Tierra Del Fuego, Thomas Matthew Robson
Response Of A Peatland Ecosystem To Stratospheric Ozone Reduction In Tierra Del Fuego, Thomas Matthew Robson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Tierra del Fuego, at the southernmost tip of South America, is influenced by ozone depletion. The landscape of southern and western Tierra de! Fuego is dominated by peatlands; they are important locally and in the context of global climate change, because they store large quantities of organic carbon.
To determine the influence of solar ultraviolet-B radiation (UV-B) on a Tierra de! Fuego peatland, we selectively filtered solar UV-Bin ten pairs of plots. Polyfluorine filters were used to create the Near-Ambient-UV-B Treatment (90% solar UV-B), and polyester filters to create the Reduced-UV-B Treatment ( 17% solar UV-B). These filters were first …
A Study Of Invasive Species Cover Near Roads In A Red Rock Canyon Blackbrush Community, Christopher Keough
A Study Of Invasive Species Cover Near Roads In A Red Rock Canyon Blackbrush Community, Christopher Keough
UNLV Theses, Dissertations, Professional Papers, and Capstones
The monitoring of Mojave Desert plant communities during and following disturbance is an important process that could provide invaluable information about disturbance/recovery regimes in similar arid environments across the globe. Blackbrush communities are of particular interest because of their low replacement rate, which makes them highly susceptible to disturbance. Roads in the Mojave Desert have been associated with soil compaction resulting in a lack of vegetation as well as an increase in invasive species cover in the immediate proximity. To investigate these statements, eight fifty-foot line transects were established in each of three plot types (perpendicular to dirt roads, perpendicular …
Habitat Preferences Of Four Species Of Lizards Found At The Las Vegas Springs Preserve, Scott Garncarz
Habitat Preferences Of Four Species Of Lizards Found At The Las Vegas Springs Preserve, Scott Garncarz
UNLV Theses, Dissertations, Professional Papers, and Capstones
Developing an understanding of the habitat usage of reptiles is important when trying to develop a management or restoration plan that is compatible with what is known of the reptile species that are being investigated. There are many lizard species found in the Mojave Desert, but there are only four known to inhabit the Las Vegas Springs Preserve (LVSP) in Las Vegas, Nevada. In the LVSP, sites are going to be restored with native Mojave Desert vegetation. Since there are many habitat types in the Mojave Desert, we must determine which types would be best suited for the four species …
Quantifying Losses Of Understory Forage In Aspen Stands On The Dixie And Fishlake National Forests, Barton R. Stam
Quantifying Losses Of Understory Forage In Aspen Stands On The Dixie And Fishlake National Forests, Barton R. Stam
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The West has lost up to 60% of its historic aspen stands over the last century, probably as a result of the successional tendency of aspen to be replaced by coniferous species in the absence of periodic fires. One of several major impacts of this change is the loss of understory forage as conifer canopy cover increases. I measured understory biomass in aspen stands ranging from 0% to 81 % absolute conifer cover in the canopy and found that understory production declines exponentially as conifers replace aspen. I also did an economic analysis to determine the value of the forage …
Draft Aquaculure Plan For Exmouth Gulf, Department Of Fisheries
Draft Aquaculure Plan For Exmouth Gulf, Department Of Fisheries
Fisheries Management Papers
The Plan’s objective is to provide a sound strategy for developing future aquaculture activities in Exmouth Gulf, while at the same time conserving the unique environment of Exmouth Gulf for present and future generations, and minimising conflict with existing and future users of Exmouth Gulf.
Draft Aquaculture Plan For Shark Bay., Department Of Fisheries
Draft Aquaculture Plan For Shark Bay., Department Of Fisheries
Fisheries Management Papers
The Department of Fisheries has prepared this draft aquaculture plan for Shark Bay to provide an agreed framework for future management of aquaculture. The final plan will assist prospective aquaculturists in preparing proposals and will guide the Department of Fisheries in the decision making process for aquaculture licence and lease applications. The plan identifies constraints to aquaculture development and areas where aquaculture may occur. It also identifies species that may be used for aquaculture development. Implementation of this plan will ensure that aquaculture can occur in a sustainable manner, while retaining the unique features of Shark Bay.
Fisheries Occasional Publication No. 6 - Anglers Guide To Assessing Reproductive Stage In Fish, Kim Smith, Mike Mackie, Department Of Fisheries Western Australia
Fisheries Occasional Publication No. 6 - Anglers Guide To Assessing Reproductive Stage In Fish, Kim Smith, Mike Mackie, Department Of Fisheries Western Australia
Fisheries Occasional Publications
What is a gonad?
"Gonad" is a general term for a reproductive organ, and is used to describe both ovaries and testes. In male and female fish, the gonad is an elongated organ lying along the upper wall of the gut cavity (i.e. running immediately under the vertebral column). The gonad gonad has 2 lobes. Both lobes are attached to the body near the anus and extend forward inside the gut cavity.
As fish gonads ripen, they become larger, heavier and change colour. Immature and undeveloped adult gonads are very small, strap-like in shape, pinkish in colour and translucent (i.e. …
Spring 2004, Nsu Oceanographic Center
The Effects Of Off-Road Vehicle Use In Desert Tortoise (Gopherus Agassizii) Habitats, Brent D. Clark
The Effects Of Off-Road Vehicle Use In Desert Tortoise (Gopherus Agassizii) Habitats, Brent D. Clark
UNLV Theses, Dissertations, Professional Papers, and Capstones
The desert tortoise (Gopherus agassizii) populations have been in decline and have been placed on the endangered species list. No single factor is ultimately responsible for the tortoise decline. It is a combination of events that collectively have a negative impact. I chose to focus my study on only one factor, off-road vehicles. By evaluating the damage done to the terrain by off-road vehicles, a better understanding of their impact on the tortoise populations can be assessed and protective measures taken.
The amount of available vegetation does not seem to play a role in their decisions of which plants to …
Defining Soil Type And Habitat Characteristics Of The Arctomecon Californica, Philip S. Childers
Defining Soil Type And Habitat Characteristics Of The Arctomecon Californica, Philip S. Childers
UNLV Theses, Dissertations, Professional Papers, and Capstones
A. californica can be considered a rare endemic species, which is believed to be restricted by unique soil relationships. These relationships make the species vulnerable to anthropogenic habitat disturbance. Although A. californica is listed as critically endangered by the state of Nevada, further research is needed before the species can be listed as federally endangered or threatened. This study used primary observational data and secondary GIS compatible data to characterize A. californica habitat. Representative sampling techniques were used to select observations from derived soil types. Although a majority of A. californica populations were found to occur in gypsic soil types, …
Relating Water And Otolith Chemistry In Chesapeake Bay, And Their Potential To Identify Essential Seagrass Habitats For Juveniles Of An Estuarine-Dependent Fish, Spotted Seatrout (Cynoscion Nebulosus), Emmanis Dorval
Biological Sciences Theses & Dissertations
A quantitative understanding of habitat use of estuarine-dependent fishes is critical to the conservation of their most essential habitats. Because recruitment and fitness may be influenced by the quality of juvenile habitats, developing methods to quantify habitat-specific survivorship is pivotal to such understanding. An initial step to quantify survivorship is to validate the habitat-specific natural tags contained in otoliths. To this aim I investigated the variability in the chemistry of surface waters and otoliths of juvenile spotted seatrout, Cynoscion nebulosus, in five seagrass habitats of Chesapeake Bay, namely: Potomac, Rappahannock, York, Island, and Eastern Shore. I measured Mg, Ca, …
Draft Plan Of Management For The Kalbarri Blue Holes Fish Habitat Protection Area., Department Of Fisheries
Draft Plan Of Management For The Kalbarri Blue Holes Fish Habitat Protection Area., Department Of Fisheries
Fisheries Management Papers
The overall objective of the proposed FHPA and the associated Plan of Management is to conserve and protect a portion of the near-shore reef ecosystem in the vicinity of the Blue Holes, and to manage activities within the area, to promote the observation and protection of fish living within the area. Strong community commitment has already been demonstrated, and this is crucial in the implementation of the proposed management plan
Fish Stock And Fishery Enhancement In Western Australia. A Summary Report., Department Of Fisheries
Fish Stock And Fishery Enhancement In Western Australia. A Summary Report., Department Of Fisheries
Fisheries Management Papers
This summary paper provides an overview of the key proposals set out in the full policy discussion paper, Fisheries Management Paper No 175. It does not discuss the theoretical background for the framework presented and therefore readers interested in such discussion are directed to Fisheries Management Paper No 175.
Both papers have been prepared to encourage public involvement in the development of policy for stock enhancement within Western Australian waters. Stock enhancement can involve an existing fishery or creation of a new fishery through the translocation of fish. It affects both public and private waters.
Feasibility Of Mapping Benthic Biotopes In The Hudson River, Nicole P. Maher, Robert M. Cerrato
Feasibility Of Mapping Benthic Biotopes In The Hudson River, Nicole P. Maher, Robert M. Cerrato
School of Marine & Atmospheric Sciences Faculty Publications
Successful management of aquatic resources requires comprehensive maps that identify the spatial distribution and extent of potentially vulnerable habitats and their resident biota (e.g., essential fish habitat). We illustrate a technique that describes submerged landscapes not only in terms of geophysical properties, but also in terms of the resident biotic communities. Biological community distribution was highly correlated with the geophysical provinces initially identified by Bell et al. (2000). However, fewer groups of stations (created mainly by combining provinces) explained almost as much of the variation in benthic community structure and was a better description of the major biotopes in this …
The Prairie Naturalist Volume 36, No.1 March 2004
The Prairie Naturalist Volume 36, No.1 March 2004
The Prairie Naturalist
DUCK NESTING SUCCESS IN NORTH DAKOTA ROAD RIGHT-OF-WAYS ▪ J. Walker, S. S. Stephens, M. S. Lindberg, and J. 1. Rotella
DID TALLGRASS PRAIRIE EXTEND INTO PENNSYLVANIA? ▪ D. C. Laughlin
INFLUENCE OF PREY ABUNDANCE ON RAPTORS IN TALLGRASS PRAIRIE ▪ A. W. Reed, G. A. Kaufman, D. A. Rintoul, and D. W. Kaufman
AMERICAN BITTERN NESTING IN THE SAN JOAQUIN VALLEY, CALIFORNIA ▪ L. C. Carroll and F. A. de Szalay
THE FLORA OF THE COTTONWOOD LAKE STUDY AREA, STUTSMAN COUNTY, NORTH DAKOTA ▪ . D. M. Mushet, N. H. Euliss Jr., S. P. Lane, and C. M. Goldade …
The Hardy Inlet Estuarine Fishery Management Issues And Options, Department Of Fisheries
The Hardy Inlet Estuarine Fishery Management Issues And Options, Department Of Fisheries
Fisheries Management Papers
This paper presents information available on fish resources in the Hardy Inlet/Blackwood River system, and discusses the key management matters and likely impacts of a number of possible management measures.