The Effect Of Habitat Choice Density And Distribution On Breeding Western Snowy Plovers PDF Download
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| Author | : Krista A. Fahy |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2008 |
| Genre | : Snowy plover |
| ISBN | : |
Download The Effect of Habitat Choice, Density and Distribution on Breeding Western Snowy Plovers Book in PDF, ePub and Kindle
Between 1995 and 2004, the 25.7 hectare Guadalupe Oil Field supported up to 21 breeding pairs of snowy plovers each season. While mean hatching success (0.58) was slightly higher than at other breeding sites, success rates declined after 1998 with predation the dominant source (0.61) of nest failure.
| Author | : Kevin M. Brindock |
| Publisher | : |
| Total Pages | : 76 |
| Release | : 2009 |
| Genre | : Snowy plover |
| ISBN | : |
Download Habitat Selection by Western Snowy Plovers (Charadrius Alexandrinus Nivosus) During the Nonbreeding Season Book in PDF, ePub and Kindle
| Author | : Zachary J. Nelson |
| Publisher | : |
| Total Pages | : 88 |
| Release | : 2007 |
| Genre | : Plovers |
| ISBN | : |
Download Conspecific Attraction in the Breeding Distribution of the Western Snowy Plover (Charadrius Alexandrinus Nivosus) Book in PDF, ePub and Kindle
| Author | : |
| Publisher | : |
| Total Pages | : 810 |
| Release | : 2009 |
| Genre | : Dissertations, Academic |
| ISBN | : |
Download Dissertation Abstracts International Book in PDF, ePub and Kindle
| Author | : Stephanie D. Leja |
| Publisher | : |
| Total Pages | : 53 |
| Release | : 2015 |
| Genre | : Snowy plover |
| ISBN | : |
Download Habitat Selection and Response to Restoration by Breeding Western Snowy Plovers in Coastal Northern California Book in PDF, ePub and Kindle
Habitat loss and degradation by invasive species is a primary limitation to the recovery of the Western Snowy Plover (Charadrius nivosus nivosus), a federally threatened shorebird that resides on coastal beaches in Humboldt County, California. This habitat threat posed by European Beachgrass (Ammophila arenaria) is often mitigated through dune restoration. Some habitat features altered by restoration (e.g., beach width) may influence plover breeding habitat selection. Further study was needed to determine which physical and social features (e.g., presence of conspecifics) influence plover nesting locations. I evaluated this response of plovers to restoration and identified characteristics that influence nest site selection. In an Information-Theoretic framework, I compared nests (n = 81) and random locations within habitat using logistic regression and Generalized Linear Mixed Models to produce Resource Selection Function analyses and conduct model selection analyses. Plovers nested on wider, less sloped beaches, with greater coverage of natural debris (e.g., driftwood, shells) and more conspecifics than at random locations. Plovers nested primarily (84%) in restored habitats, although this was influenced by one human-restored site with 33% of nests. These findings can guide coastal dune system managers to generate the features in restoration that improve nesting habitat and facilitate survival and recovery of this threatened Snowy Plover population.
| Author | : Noah S. Burrell |
| Publisher | : |
| Total Pages | : 80 |
| Release | : 2010 |
| Genre | : Snowy plover |
| ISBN | : |
Download Breeding Patch Dynamics of the Western Snowy Plover (Charadrius Alexandrinus Nivosus) in Humboldt County, California Book in PDF, ePub and Kindle
| Author | : Jeremy J. Pohlman |
| Publisher | : |
| Total Pages | : 59 |
| Release | : 2020 |
| Genre | : Snowy plover |
| ISBN | : |
Download Shifting Sands Book in PDF, ePub and Kindle
Understanding the social and physical factors that influence the temporal and spatial distribution of a species is imperative for successful management. The Western Snowy Plover (Charadrius nivosus nivosus) selects for wide-open stretches of beach; yet within large expanses of ideal habitat, plover populations tend to be aggregated. Recent evidence suggests plovers may prioritize social information over ideal physical factors alone when selecting breeding locations. I analyzed data collected on an individually marked population of Snowy Plovers in Humboldt County, California from 2001 to 2018 to evaluate the influence of physical (beach width) and social (presence of conspecifics) landscape factors on the population’s breeding distribution. Using an information-theoretic framework, I conducted incidence function models and model selection analyses to examine how physical and social factors influenced inexperienced breeder occupancy of approximately 100 km of plover habitat. Beach width influenced where plovers bred, however, inexperienced plovers were more likely to colonize sites occupied by experienced conspecifics. Reproductive success had minimal influence on settlement of inexperienced breeders the following season. This information suggests the species’ successful recovery requires an added emphasis on social information for future habitat restoration efforts.
| Author | : Mark A. Colwell |
| Publisher | : CRC Press |
| Total Pages | : 343 |
| Release | : 2019-04-26 |
| Genre | : Nature |
| ISBN | : 1498755836 |
Download The Population Ecology and Conservation of Charadrius Plovers Book in PDF, ePub and Kindle
The 40 or so species of beach-loving plovers (genus Charadrius) comprise a diverse group of shorebirds found around the world. Most of these species are challenged by changing climates and other human-related development activities, yet they provide key insights into basic ecological and evolutionary processes. The expert international contributors take a comparative approach, presenting examples from many worldwide plover studies and synthesizing the group’s most pressing and important topics. The book further presents an emphasis on full life-cycle biology, including the importance of examining migratory connectivity issues, even for non-migratory plovers. Color pages were planned and approved for some pages in this volume, but due to a printing error some copies have incorrectly been released with these pages printed in black and white. Replacement copies with the correct color in place can be obtained upon request by contacting [email protected]. CRC Press extends apologies to any customers affected by this error and for the inconvenience caused. Key Features Serves as a fundamental resource for conservation practitioners Detailed overview of a widely distributed group of shorebirds Authored by renowned specialists who present theoretical and applied perspectives Emphasis on comparative and synthetic approach in all chapters Related Titles McComb, B. et al. Monitoring Animal Populations and Their Habitats: A Practitioner’s Guide (ISBN 978-0-4291-3827-0). Garvey, J. E. & M. R. Whiles. Trophic Ecology (ISBN 978-1-4987-5846-8). Dewdney, A. K. Stochastic Communities: A Mathematical Theory of Biodiversity (ISBN 978-1-1381-9702-2).
| Author | : Benjamin G. Pearl |
| Publisher | : |
| Total Pages | : 70 |
| Release | : 2015 |
| Genre | : Niche (Ecology) |
| ISBN | : |
Download Factors Affecting Western Snowy Plover Winter Foraging Habitat Selection in San Francisco Bay Ponds Book in PDF, ePub and Kindle
Within the San Francisco Bay Area, Western Snowy Plovers (Alexandrinus nivosus nivosus) nest and winter in former salt ponds. They face a number of threats including human-altered habitats and high levels of predation by mesopredators and raptors. The South Bay Salt Pond Restoration Project (the Project) is a large wetland restoration project that will change and potentially eliminate Snowy Plover habitat in the region. As the Project returns salt ponds to tidal wetland, there will be less of the dry, flat, and sparsely vegetated habitat that plovers need for breeding and wintering habitat. A greater understanding of the specific microhabitat requirements for high quality plover foraging sites is needed. In particular, it is important for managers to understand what constitutes high quality wintering habitat for Snowy Plover numbers. This study assessed the characteristics at sites where Snowy Plovers winter in former salt ponds, especially habitat traits related to promoting plover foraging. Analysis of plover foraging habitat showed that plovers were associated with increasing plant height, water cover, and distance from perches and levees. This information is designed to inform restoration and management decisions in efforts to meet Snowy Plover recovery goals in the South San Francisco Bay.
| Author | : Casey Michelle Weissburg |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2023 |
| Genre | : Brood-rearing phases |
| ISBN | : |
Download Mountain Plovers Select Breeding Habitat Dependent on Local Vegetation Structure at Two Differing Colorado Sites Book in PDF, ePub and Kindle
The Mountain Plover is a declining species of concern in the State of Colorado. Chick survival has been shown as the vital rate that affects population growth the most after adult survival during migration, yet little is known about how plovers select habitat during the brood-rearing phase or the effects on survival. Our research investigates habitat selection during the nesting and brood-rearing phases, at two different breeding sites in Colorado, in shortgrass prairie and high plains. We monitored nests and broods during the 2021 and 2022 breeding seasons, and evaluated environmental covariates of predation risk, forage availability, and vegetation structure. We hypothesized that nest habitat selection would depend on vegetation structure, while brood habitat selection would depend on variation in predation risk, mediated by vegetation structure. Results suggest that the plover habitat selection is best explained by vegetation structure during the breeding season, regardless of breeding stage or site. Nesting plovers selected for higher bare ground coverage and shorter vegetation height, regardless of study site. Brood habitat selection strategies varied by site. In shortgrass prairie, broods selected for high bare ground and short vegetation, as well as higher grasshopper availability and low densities of shrubs. Broods in high plains had variable strategies; some selected for low bare ground coverage or taller vegetation, while others selected the opposite extremes, in a quadratic association with vegetation density. Overall, results suggest that the Mountain Plover places the most importance on vegetation structure when selecting for habitat during the breeding season, but the features they select for during the brood-rearing phase vary according to local conditions. These results have implications for management of this species, as maintenance of a landscape for breeding plovers may require different approaches depending on the local environment.
