Download or read book Effect of Limited Canopy Removal on Pond breeding Amphibians written by Ginger Kinworthy Louder and published by . This book was released on 2003 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initial Juvenile Movement of Pond breeding Amphibians in Altered Forest Habitat written by Michael S. Osbourn and published by . This book was released on 2012 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: The initial juvenile movement phase represents the first stage of the multi-phase process of natal dispersal. My objective was to investigate how alterations in forest habitat quality impact initial juvenile movement success and behavior. I conducted a mark-recapture study of juvenile Spotted Salamanders (Ambystoma maculatum) and Green Frogs (Lithobates clamitans) within experimental forest arrays. Spotted Salamander movement success was significantly greater in partial-cut treatments than the control or clearcut treatments. Green Frog movement success was greatest in the control forest. A greater proportion of both Spotted Salamander and Green Frog juveniles, initially moving through open-canopy habitats, redirected their movements toward forests. I next sought to identify how fine-scale habitat quality affects juveniles' decisions to cease moving away from their natal pond and settle. By using experimental enclosures, I attempted to isolate the effects of forest canopy and microhabitat manipulations on salamander settling decisions relative to unmanipulated forest controls. For Spotted Salamanders and Ringed Salamanders (A. annulatum) settling probability decreased with forest canopy removal and compacted soils. Spotted salamander settling probability increased with higher refuge densities.
Download or read book The Effects of Nearshore Forest Thinning on Upland Habitat Use by Pond breeding Amphibians in a Montane Coniferous Forest written by Andrew Holt McIntyre and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest thinning removes woody fuels from coniferous forests in a way that mimics historic wildfire regimes by removing mid-story pines and increasing horizontal and vertical spacing. Thinning results in few long-term effects to habitat features required by sensitive amphibians including canopy cover, soil moisture and available cover objects. Though some research suggests minimal effects of thinning to amphibians, few studies have assessed effects to aquatic-breeding amphibians in forests of the Pacific Northwest. We conducted an experimental study evaluating effects of understory thinning on aquatic-adjacent habitat on forest conditions and amphibian movement patterns. Thinning treatments were implemented in 12 plots, alternating with matching controls, in the pine-fir forests surrounding Big Lake, a 10.7 ha ephemeral lake in northern California. We assessed effects of thinning on habitat variables relevant to amphibians and used pitfall traps to assess movement by long-toed salamanders (Ambystoma macrodactyllum), western toads (Anaxyrus boreas), and Pacific chorus frogs (Pseudacris regilla). We investigated associations between amphibian captures and upland habitat conditions and assessed amphibian use of debris piles created during treatments. We predicted metamorphic amphibians would seek cover and shade in control plots, while adults would find migration easier in treated plots. Tree density decreased while woody debris cover showed a moderate increase after treatments. A modest increase in captures of chorus frogs occurred in treatment plots, but no treatment effect was detected for toads or salamanders. Receding surface waters forced salamander larvae to develop and emerge at the eastern end of Big Lake. With a shorter development time, western toads and chorus frogs were able to emerge from the pond before surface waters receded. Salamanders and chorus frogs were captured in areas of high leaf litter and low tree density, suggesting a preference of these species for foraging in lower intensity forests. Foraging diurnally, toads preferred areas offering high levels of canopy cover. Our results suggest moderate understory thinning in forests adjacent to aquatic habitat may show no harmful short-term impacts to pond-breeding amphibians. No amphibians were found under debris piles; future research should survey such piles during different times of year and directly before burning.
Download or read book Amphibian Conservation written by Rebecca K. Smith and published by Pelagic Publishing Ltd. This book was released on 2014-05-16 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibian Conservation is the fourth in the series of Synopses of Conservation Evidence, linked to the online resource www.ConservationEvidence.com. This synopsis is part of the Conservation Evidence project and provides a useful resource for conservationists. It forms part of a series designed to promote a more evidence-based approach to biodiversity conservation. Others in the series include bee, bird, farmland and bat conservation and many others are in preparation. Approximately 32% of the 7,164+ amphibian species are currently threatened with extinction and at least 43% of species are declining. Despite this, until recently amphibians and their conservation had received little attention. Although work is now being carried out to conserve many species, often it is not adequately documented. This book brings together and summarises the available scientific evidence and experience relevant to the practical conservation of amphibians. The authors consulted an international group of amphibian experts and conservationists to produce a thorough summary of what is known, or not known, about the effectiveness of amphibian conservation actions across the world. "The book is packed with literature summaries and citations; a veritable information goldmine for graduate students and researchers. It also admirably provides decision makers with a well-researched resource of proven interventions that can be employed to stem/reverse the decline of amphibian populations." -John G Palis, Bulletin of the Chicago Herpetological Society
Download or read book What Works in Conservation 2021 written by William J. Sutherland and published by Open Book Publishers. This book was released on 2021-08-02 with total page 799 pages. Available in PDF, EPUB and Kindle. Book excerpt: Does the creation of artificial reefs benefit subtidal benthic invertebrates? Is the use of organic farming instead of conventional farming beneficial to bat conservation? Does installing wildlife warning reflectors along roads benefit mammal conservation? Does the installation of exclusion and/or escape devices on fishing nets benefit marine and freshwater mammal conservation? What Works in Conservation has been created to provide practitioners with answers to these and many other questions about practical conservation. This book provides an assessment of the effectiveness of 2526 conservation interventions based on summarized scientific evidence. The 2021 edition containssubstantial new material on bat conservation, terrestrial mammal conservation and marine and freshwater mammals, thus completing the evidence for all mammal species categories. Other chapters cover practical global conservation of primates, amphibians, bats, birds, forests, peatlands, subtidal benthic invertebrates, shrublands and heathlands, as well as the conservation of European farmland biodiversity and some aspects of enhancing natural pest control, enhancing soil fertility, management of captive animals and control of freshwater invasive species. It contains key results from the summarized evidence for each conservation intervention and an assessment of the effectiveness of each by international expert panels. The accompanying website www.conservationevidence.com describes each of the studies individually, and provides full references. This is the sixth author-approved edition of What Works in Conservation, which is revised on an annual basis.
Download or read book Influence of Fish Presence and Removal on Woodland Pond Breeding Amphibians written by J. Brian Towey and published by . This book was released on 2007 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Spatial Subsidies and Canopy Cover on Pond Communities and Multiple Life Stages in Amphibians written by Julia E. Earl and published by . This book was released on 2012 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatial subsidies are resources that move from one ecosystem to another. In aquatic systems, canopy cover determines both light availability and subsidy input in the form of senescing leaves. This phenomenon has been well studied in streams, and general patterns of ecosystem production, community structure, and the reciprocal export of animals have been discovered. I was interested in whether these patterns also occurred in ponds. I examined these patterns using experimental pond mesocosms and supported the results using an observational study of natural ponds. For the pond mesocosm experiment, I placed mesocosms along a canopy cover gradient and manipulated spatial subsidy input. I found a shift from net heterotrophy in closed canopy mesocosms to a balance between heterotrophy and autotrophy in open canopy mesocosms. The macroinvertebrate community structure responded to both canopy cover and subsidy input in mesocosms. The biomass of collectors (detritivores) was highest in mesocosms with litter input and increased with canopy cover, a pattern also present in natural ponds. Finally, I found that litter input increased the reciprocal export of amphibian biomass compared to no input. Amphibian biomass also decreased with increases in primary productivity. This research highlights the importance of spatial subsidies that connect different ecosystem types. Conserving these ecosystem connections will help maintain biodiversity and ecosystem function.
Download or read book Long term Assessment of Predatory Fish Removal on a Pond breeding Amphibian Community in Central Illinois written by Lee M. Gross and published by . This book was released on 2009 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Medicine Bow National Forest N F Proposed Revised Land and Resource Management Plan written by and published by . This book was released on 2004 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphibians and Reptiles of Georgia written by John B. Jensen and published by University of Georgia Press. This book was released on 2008 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring more than 475 full-color photographs and 182 maps, this comprehensive guide to the state's diverse herpetofauna makes accessible a wealth of information about 170 species of frogs, salamanders, crocodilians, lizards, snakes, and turtles, including species attributes, behavior, life cycles, habitat, and more.
Download or read book Environmental Reviews written by and published by . This book was released on 1995 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science and Conservation of Vernal Pools in Northeastern North America written by Aram J. K. Calhoun and published by CRC Press. This book was released on 2007-08-13 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesizes Decades of Research on Vernal Pools Science Pulling together information from a broad array of sources, Science and Conservation of Vernal Pools in Northeastern North America is a guide to the issues and solutions surrounding seasonal pools. Drawing on 15 years of experience, the editors have mined published literature,
Download or read book Zortman and Landusky Mines Reclamation Plan Modifications and Mine Life Extensions written by and published by . This book was released on 1996 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Planning and Resource Development Series written by Holdsworth Natural Resources Center and published by . This book was released on with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kootenai National Forest N F Grizzly Vegetation and Transportation Management Project written by and published by . This book was released on 2009 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kootenai National Forest N F Sparring Bulls written by and published by . This book was released on 2010 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resource Investments Landfill Facility Pierce County written by and published by . This book was released on 1995 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
