Evaluating Amphibian Occurrence Models And The Importance Of Small Isolated Wetlands In The Delaware Water Gap National Recreational Area

Download Evaluating Amphibian Occurrence Models And The Importance Of Small Isolated Wetlands In The Delaware Water Gap National Recreational Area full books in PDF, epub, and Kindle. Read online Evaluating Amphibian Occurrence Models And The Importance Of Small Isolated Wetlands In The Delaware Water Gap National Recreational Area ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Evaluating Amphibian Occurrence Models and the Importance of Small, Isolated Wetlands in the Delaware Water Gap National Recreational Area

Author : James T. Julian
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (613 download)

DOWNLOAD NOW!

Book Synopsis Evaluating Amphibian Occurrence Models and the Importance of Small, Isolated Wetlands in the Delaware Water Gap National Recreational Area by : James T. Julian

Download or read book Evaluating Amphibian Occurrence Models and the Importance of Small, Isolated Wetlands in the Delaware Water Gap National Recreational Area written by James T. Julian and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Isolated wetlands lack permanent stream connections to adjacent bodies of water, and are ecologically important because they can be the most abundant type of wetland in a region, and can harbor unique biological communities. Despite this, isolated wetlands are rarely protected by federal and state legislation, and federal agencies do not assess their abundance when reporting national trends in wetland losses. In this dissertation, I present the results from a field study that illustrates how the presence of small and isolated wetlands is important in maintaining populations of pond-breeding amphibians across the Delaware Water Gap National Recreational Area located in New Jersey and Pennsylvania. I found that stream connections at wetlands strongly influenced the occurrence patterns of five out of nine amphibian species studied, and species that bred earlier in the year were the most likely to occur at small and isolated wetlands. I used occurrence patterns at surveyed wetlands to predict the presence of amphibian species across the entire study area, and estimated that two-thirds of all species would lose at least half of their breeding sites if either isolated wetlands or small wetlands (

Mid-Atlantic Freshwater Wetlands: Advances in Wetlands Science, Management, Policy, and Practice

Author : Robert P. Brooks
Publisher : Springer Science & Business Media
ISBN 13 : 1461455960
Total Pages : 498 pages
Book Rating : 4.4/5 (614 download)

DOWNLOAD NOW!

Book Synopsis Mid-Atlantic Freshwater Wetlands: Advances in Wetlands Science, Management, Policy, and Practice by : Robert P. Brooks

Download or read book Mid-Atlantic Freshwater Wetlands: Advances in Wetlands Science, Management, Policy, and Practice written by Robert P. Brooks and published by Springer Science & Business Media. This book was released on 2013-01-25 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lands and waters of the Mid-Atlantic Region (MAR) have changed significantly since before the 16th century when the Susquehannock lived in the area. Much has changed since Captain John Smith penetrated the estuaries and rivers during the early 17th century; since the surveying of the Mason-Dixon Line to settle border disputes among Maryland, Pennsylvania, and Delaware during the middle of the 18th century; and since J. Thomas Scharf described the physiographic setting of Baltimore County in the late 19th century. As early as 1881, Scharf provides us with an assessment of the condition of the aquatic ecosystems of the region, albeit in narrative form, and already changes are taking place – the conversion of forests to fields, the founding of towns and cities, and the depletion of natural resources. We have always conducted our work with the premise that “man” is part of, and not apart from, this ecosystem and landscape. This premise, and the historical changes in our landscape, provide the foundation for our overarching research question: how do human activities impact the functioning of aquatic ecosystems and the ecosystem services that they provide, and how can we optimize this relationship?

Funding the Natural Resource Challenge, a Report to Congress, Fiscal Year ...

Author : United States. National Park Service
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (327 download)

DOWNLOAD NOW!

Book Synopsis Funding the Natural Resource Challenge, a Report to Congress, Fiscal Year ... by : United States. National Park Service

Download or read book Funding the Natural Resource Challenge, a Report to Congress, Fiscal Year ... written by United States. National Park Service and published by . This book was released on with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Amphibians and Reptiles of the Delaware Water Gap National Recreation Area

Author : Raymond J. Stein
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (456 download)

DOWNLOAD NOW!

Book Synopsis Amphibians and Reptiles of the Delaware Water Gap National Recreation Area by : Raymond J. Stein

Download or read book Amphibians and Reptiles of the Delaware Water Gap National Recreation Area written by Raymond J. Stein and published by . This book was released on 1978 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Climate Change and Ecological Models of Amphibian Communities in Palouse Prairie Wetlands

Author : Erim Gomez
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.5/5 (97 download)

DOWNLOAD NOW!

Book Synopsis Climate Change and Ecological Models of Amphibian Communities in Palouse Prairie Wetlands by : Erim Gomez

Download or read book Climate Change and Ecological Models of Amphibian Communities in Palouse Prairie Wetlands written by Erim Gomez and published by . This book was released on 2020 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most wetlands in Palouse Prairie have been lost due to intensive agricultural development and amphibians now occupy a transformed landscape dominated by human use. I used machine learning statistical techniques to evaluate the performance of 30 environmental variables to predict the occurrence of 7 species of amphibians in 99 wetlands in Palouse Prairie and the Columbia River Basin of central Washington. Algorithmic models generally used about 3-5 ecological, landscape, or spatial variables to correctly predict amphibian occupancy in wetlands with high accuracy. These models demonstrate the adverse effects of non-native fish on pond-breeding amphibians and the importance of different wetland hydroperiods and ecological settings to influence amphibian breeding and conservation in novel human-dominated ecosystems.Ephemeral wetlands are productive for many breeding amphibian species partly because they dry up seasonally and are devoid of predatory fish. However, increasing temperatures and altered precipitation patterns that accompany global climate change may threaten these ecosystems if wetlands dry before amphibians can undergo metamorphosis. I studied growth dynamics of long-toed salamanders in Palouse Prairie wetlands to evaluate the hypothesis that growth was influenced by wetland periodicity and that salamander larva would be forced to emerge at a smaller body size in seasonally-flooded wetlands. I used machine learning modeling techniques to compare sizes of salamander larvae among different wetlands across time, elevation, and spatial landscapes in Palouse Prairie and found that size distributions were smaller in ephemeral ponds that dried more quickly and larger in more permanent wetlands. Salamanders originating from ephemeral wetlands were smaller as adults than were those coming from permanent wetlands suggesting a developmental penalty or genetic differences. If climate change alters the seasonal flooding dynamics of wetlands, it may influence population dynamics and survival of amphibians in Palouse Prairie wetlands.

Predicting Amphibian Occurrence Based on Wetland and Landscape Level Factors in Montana

Author : Catherine Anne McIntyre
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (773 download)

DOWNLOAD NOW!

Book Synopsis Predicting Amphibian Occurrence Based on Wetland and Landscape Level Factors in Montana by : Catherine Anne McIntyre

Download or read book Predicting Amphibian Occurrence Based on Wetland and Landscape Level Factors in Montana written by Catherine Anne McIntyre and published by . This book was released on 2011 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibians have a complex life history that requires a mosaic of habitats, including breeding, foraging, and over-wintering areas. Historically, regulators have focused on wetland breeding habitat quality to explain amphibian presence. Recently, other habitat requirements including landscape level factors have been examined. Data collected from amphibian surveys in Montana were used to determine if wetland quality factors or landscape level factors were better determinants of amphibian occurrence at breeding sites. Twenty-six habitat models were constructed a priori for eight species of amphibians in Montana. This included five models containing parameters associated with wetland quality, ten landscape level models, and ten models that combined both local and landscape covariates. Logistic regression analysis with an information theoretic approach was used to select the best approximating model. Results indicate that habitat models including only wetland variables were not good predictors of presence for most amphibians. The landscape scale at which habitat models were best supported varied among species and was consistent with differing life history traits. The presence of Ambystoma macrodactylum, the western population of Ambystoma tigrinum, Bufo boreas, and Rana luteiventris was best predicted by landscape covariates. Models with a combination of local and landscape covariates were best supported for Rana pipiens, Bufo woodhousii, Pseudacris maculata, and Pseudacris regilla. The probability of Ambystoma macrodactylum presence is highest at breeding sites that are surrounded by forested areas. The western population of Ambystoma tigrinum was positively associated with an increased distance to forest and a higher density of wetlands around a breeding site. The eastern population of Ambystoma tigrinum was negatively associated with higher elevations. Bufo boreas and Rana luteiventris were positively associated with increased forest within 1,000 m, and negatively associated with increased distance to forest and aquatic sites in an agricultural landscape. Bufo woodhousii and Pseudacris maculata were positively associated with open landscapes dominated by natural grasses. The presence of Rana pipiens was positively associated with open landscapes dominated by natural grasses. This project highlights the importance of maintaining intact landscapes around amphibian breeding ponds in order to meet the habitat requirements of amphibians during all stages of their life cycle.

Multistate Occupancy Modeling Improves Understanding of Amphibian Breeding Dynamics in the Greater Yellowstone Area

Author : William R. Gould
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (13 download)

DOWNLOAD NOW!

Book Synopsis Multistate Occupancy Modeling Improves Understanding of Amphibian Breeding Dynamics in the Greater Yellowstone Area by : William R. Gould

Download or read book Multistate Occupancy Modeling Improves Understanding of Amphibian Breeding Dynamics in the Greater Yellowstone Area written by William R. Gould and published by . This book was released on 2018 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discerning the determinants of species occurrence across landscapes is fundamental to their conservation and management. In spatially and climatologically complex landscapes, explaining the dynamics of occurrence can lead to improved understanding of short versus long-term trends and offer novel insight on local versus regional change. We examined the changes in occupancy two species of anurans with different life histories over a decade using hundreds of wetland sites in Yellowstone and Grand Teton national parks. To account for the joint dynamics of wetland drying and amphibian breeding, we adopted a multistate occupancy model as a means to investigate mechanistic relationship of observed occurrence patterns with climatological drivers of wetland hydrologic variability. This approach allowed us to decompose occupancy dynamics into habitat changes caused by wetland drying and amphibian breeding activity, conditional on available water and previous breeding state. Over our 10-year time series, we observed considerable variability in climate drivers and the proportion of dry wetlands. Boreal Chorus Frogs (Pseudacris maculata) were more responsive to changes in wetland inundation status than Columbia Spotted Frogs (Rana luteiventris) as indicated by higher breeding colonization probabilities under favorable (wet) conditions. Both species had high probabilities of breeding persistence in permanently inundated wetlands with prior breeding. Despite the absence of multi-year drought in our time series, mechanistic relationships described here offer insights on how future climate variation may result in reduced and/or shifted occurrence patterns for pond-breeding anurans in the Greater Yellowstone Area. Further, our modeling approach may prove valuable in evaluating determinants of occurrence for other species that are dependent on wetlands or other dynamic habitats.

Dynamic Approaches to Modeling Wetland Community Responses to Changing Water Availability

Author : Courtney Davis
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (927 download)

DOWNLOAD NOW!

Book Synopsis Dynamic Approaches to Modeling Wetland Community Responses to Changing Water Availability by : Courtney Davis

Download or read book Dynamic Approaches to Modeling Wetland Community Responses to Changing Water Availability written by Courtney Davis and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Of the myriad of issues facing amphibian populations worldwide, the direct and indirect effects of climate change are among the most difficult to isolate and predict. The effects of climate change on distributions of individual species do not occur in isolation but instead are the outcome of interactions between climate, co-occurring species, and the physical environment in which interactions occur. However, current models do not consider community dynamics or complex interactions between climate and the physical environment, making it difficult to predict how community assemblages will be affected. For wetland communities, in particular, shifts in regional climate are likely to have profound and ongoing effects on site suitability and as a result, species composition. We examined how patterns of amphibian occurrence responded to extreme climate events at St. Marks National Wildlife Refuge from 2009 -- 2014, where fluctuations in precipitation have resulted in periods of extreme drought as well as expansive flooding. High rainfall associated with Tropical Storm Debby in 2012 allowed for the colonization of predatory fishes to many previously isolated wetlands. Using long-term monitoring data, we parameterized a set of dynamic multispecies occupancy models that incorporate habitat dynamics and species interactions to investigate the occurrence dynamics of three representative amphibian species in response to changing water availability (Chapter 1). Additionally, we investigate how an adaptation to variable environmental conditions -- facultative paedomorphism, as exhibited in one of these three species -- further structures responses to these disturbance events (Chapter 2). Drought and predatory fishes had differing effects on amphibian occurrence dynamics for each of the three species we examined. The occupancy of ornate chorus frogs (Pseudacris ornata), a species that preferentially selects ephemeral wetlands to breed, increased from 30% to 50% of surveyed wetlands during periods of drought in 2010 -- 2011. Mole salamander (Ambystoma talpoideum) occupancy, however, decreased from 40% to 25% due to the reduction of wetland hydroperiod at this time. For both of these species, fishes negatively impacted occurrence; wetlands occupied by fish were rarely, if ever, colonized by either the ornate chorus frog or the mole salamander. Despite the ability to modify its phenotype in favorable environmental conditions, the mole salamander occupied less than 20% of wetlands by 2014, suggesting that conditions remained unfavorable for this species, in particular. Pig frog (Rana grylio) occupancy, however, was not influenced by changes in climate during the study or changes in fish presence on the refuge. Projecting community composition under various climate scenarios (i.e., future increases in drought and/or flood frequency), we further demonstrate that responses to changing water availability are linked to species traits, characteristics of individual wetlands, and the interaction between climate and the physical environment.

Species-specific Responses to Wetland Mitigation Among Amphibians in the Greater Yellowstone Ecosystem

Author : Leah K. Swartz
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (13 download)

DOWNLOAD NOW!

Book Synopsis Species-specific Responses to Wetland Mitigation Among Amphibians in the Greater Yellowstone Ecosystem by : Leah K. Swartz

Download or read book Species-specific Responses to Wetland Mitigation Among Amphibians in the Greater Yellowstone Ecosystem written by Leah K. Swartz and published by . This book was released on 2019 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Habitat loss and degradation are leading causes of biodiversity declines, therefore assessing the capacity of created mitigation wetlands to replace habitat for wildlife has become a management priority. We used single season occupancy models to compare occurrence of larvae of four species of pond-breeding amphibians in wetlands created for mitigation, wetlands impacted by road construction, and unimpacted reference wetlands along a highway corridor in the Greater Yellowstone Ecosystem, U.S.A. Created wetlands were shallow and had less aquatic vegetation and surface area than impacted and reference wetlands. Occupancy of barred tiger salamander (Ambystoma mavortium) and boreal chorus frog (Pseudacris maculata) larvae was similar across wetland types, whereas boreal toads (Anaxyrus boreas) occurred more often in created wetlands than reference and impacted wetlands. However, the majority of created wetlands (> 80%) dried partially or completely before amphibian metamorphosis occurred in both years of our study, resulting in heavy mortality of larvae and, we suspect, little to no recruitment. Columbia spotted frogs (Rana luteiventris), which require emergent vegetation that is not common in newlycreated wetlands, occurred commonly in impacted and reference wetlands but were found in only one created wetland. Our results show that shallow created wetlands with little aquatic vegetation may be attractive breeding areas for some amphibians, but may result in high mortality and little recruitment if they fail to hold water for the entire larval period.

Ecological Memory in Farmed Landscapes

Author : Erim Gomez
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (785 download)

DOWNLOAD NOW!

Book Synopsis Ecological Memory in Farmed Landscapes by : Erim Gomez

Download or read book Ecological Memory in Farmed Landscapes written by Erim Gomez and published by . This book was released on 2011 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Classification of Wetlands and Deepwater Habitats of the United States

Author : U.S. Fish and Wildlife Service
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (319 download)

DOWNLOAD NOW!

Book Synopsis Classification of Wetlands and Deepwater Habitats of the United States by : U.S. Fish and Wildlife Service

Download or read book Classification of Wetlands and Deepwater Habitats of the United States written by U.S. Fish and Wildlife Service and published by . This book was released on 1979 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wetland Creation and Restoration

Author : Jon A. Kusler
Publisher :
ISBN 13 : 9781559630443
Total Pages : 0 pages
Book Rating : 4.6/5 (34 download)

DOWNLOAD NOW!

Book Synopsis Wetland Creation and Restoration by : Jon A. Kusler

Download or read book Wetland Creation and Restoration written by Jon A. Kusler and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a preliminary evaluation of the status of the science of wetland creation and restoration in the United States. It contains a series of regional reviews. Each review summarizes wetland creation and restoration experiences in broadly defined wetland regions (e.g. Pacific coastal wetlands, wooded wetlands of the Southeast). It also includes a series of theme papers, covering a wide range of topics of general application to wetland creation and restoration (hydrology, management techniques, planning).

Remote Sensing of Wetlands

Author : Ralph W. Tiner
Publisher : CRC Press
ISBN 13 : 1482237385
Total Pages : 574 pages
Book Rating : 4.4/5 (822 download)

DOWNLOAD NOW!

Book Synopsis Remote Sensing of Wetlands by : Ralph W. Tiner

Download or read book Remote Sensing of Wetlands written by Ralph W. Tiner and published by CRC Press. This book was released on 2015-03-23 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effectively Manage Wetland Resources Using the Best Available Remote Sensing TechniquesUtilizing top scientists in the wetland classification and mapping field, Remote Sensing of Wetlands: Applications and Advances covers the rapidly changing landscape of wetlands and describes the latest advances in remote sensing that have taken place over the pa

Reptile Biodiversity

Author : Roy W. McDiarmid
Publisher : Univ of California Press
ISBN 13 : 0520266714
Total Pages : 424 pages
Book Rating : 4.5/5 (22 download)

DOWNLOAD NOW!

Book Synopsis Reptile Biodiversity by : Roy W. McDiarmid

Download or read book Reptile Biodiversity written by Roy W. McDiarmid and published by Univ of California Press. This book was released on 2012-01-10 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Authoritative and comprehensive—provides an up-to-date description of the tool box of methods for inventorying and monitoring the diverse spectrum of reptiles. All biodiversity scientists will want to have it during project planning and as study progresses. A must for field biologists, conservation planners, and biodiversity managers.”—Jay M. Savage, San Diego State University “Kudos to the editors and contributors to this book. From the perspective of a non-ecologist such as myself, who only occasionally needs to intensively sample a particular site or habitat, the quality and clarity of this book has been well worth the wait.”—Jack W. Sites, Jr.

Ecotoxicology of Amphibians and Reptiles

Author : Donald W. Sparling
Publisher : CRC Press
ISBN 13 : 1420064177
Total Pages : 946 pages
Book Rating : 4.4/5 (2 download)

DOWNLOAD NOW!

Book Synopsis Ecotoxicology of Amphibians and Reptiles by : Donald W. Sparling

Download or read book Ecotoxicology of Amphibians and Reptiles written by Donald W. Sparling and published by CRC Press. This book was released on 2010-06-02 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building on the success of its popular predecessor, the second edition of Ecotoxicology of Amphibians and Reptiles presents newly available findings on the species that are important environmental indicators. This new edition covers nearly twice as many topics as the first, including recent developments in the ecotoxicology of amphibians and reptil

Acid Precipitation Studies in Colorado and Wyoming

Author : Paul Stephen Corn
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!

Book Synopsis Acid Precipitation Studies in Colorado and Wyoming by : Paul Stephen Corn

Download or read book Acid Precipitation Studies in Colorado and Wyoming written by Paul Stephen Corn and published by . This book was released on 1989 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ecosystems of California

Author : Harold Mooney
Publisher : Univ of California Press
ISBN 13 : 0520278801
Total Pages : 1008 pages
Book Rating : 4.5/5 (22 download)

DOWNLOAD NOW!

Book Synopsis Ecosystems of California by : Harold Mooney

Download or read book Ecosystems of California written by Harold Mooney and published by Univ of California Press. This book was released on 2016-01-19 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-anticipated reference and sourcebook for CaliforniaÕs remarkable ecological abundance provides an integrated assessment of each major ecosystem typeÑits distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of CaliforniaÕs ecological patterns and the history of the stateÕs various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the stateÕs ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of CaliforniaÕs environment and curious naturalists.