DOCSLIB.ORG

W1614 Vernal Pool Survey Report 12-16-19

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
W1614 Vernal Pool Survey Report 12-16-19 Biodiversity Studies • Wetland Delineation & Assessment • Habitat Management • GIS Mapping • Permitting Vernal Pool Survey Results 1717, 1733, 1753 Storrs Road Mansfield, CT Submitted to: Robert Moskowitz Submitted by: Eric Davison Wildlife Biologist Registered Soil Scientist Certified Professional Wetland Scientist Date: 12-24-19 Davison Environmental, LLC • 10 Maple Street, Chester, CT 06412 • 860-836-6576 • www.davisonenvironmental.com CONTENTS 1.0 INTRODUCTION ............................................................................................................ 1 2.0 VERNAL POOLS DEFINED ........................................................................................... 1 3.0 TERRESTRIAL (NON-BREEDING) HABITAT ................................................................ 2 4.0 SURVEY METHODS ...................................................................................................... 2 5.0 SURVEY RESULTS ....................................................................................................... 3 5.1 Wetland Characteristics .............................................................................................. 3 5.2 Vernal Pool Survey Results & Wildlife Observed ........................................................ 3 6.0 REFERENCES ............................................................................................................... 5 ATTACHMENTS • Figures 1-2 • Site Photographs Vernal Pool Assessment Storrs Road, Mansfield, Connecticut 1.0 INTRODUCTION Davison Environmental, LLC conducted a vernal pool assessment within wetlands on three contiguous parcels located on the south side of Storrs Road in Mansfield (the “site” hereinafter). See attached Figures 1 and 2 which illustrate the location of the site. These parcels total +25 acres, with one large contiguous wetland system covering a large portion of the properties. Davison Environmental was originally retained to delineate the wetlands and watercourses on the site, which was completed in January of 2019. A survey of the delineated wetland boundary was provided by Bohler Engineering and that data was digitized using a Geographic Information System (GIS) software georeferencing tool and plotted onto Figure 2 in order to illustrate the approximate location and extent of the wetlands that were studied on the site. 2.0 VERNAL POOLS DEFINED Vernal pools are ephemeral waterbodies that provide critical breeding habitat for woodland amphibians, particularly mole salamanders (Ambystoma spp.) and wood frog (Lithobates sylvaticus). Many vernal pool definitions have been developed by both regulatory agencies as well as conservation organizations. While these definitions vary slightly, they all include the same common critical characteristics. In the Northeastern U.S., a recognized source regarding protection of vernal pools is a document developed by Calhoun and Klemens (2002), entitled: Best development practices: Conserving pool-breeding amphibians in residential and commercial developments in the northeastern United States (the “BDP Manual”, herinafter). The BDP Manual provides the following operational definition of vernal pools: “Vernal pools are seasonal bodies of water that attain maximum depths in the spring or fall, and lack permanent surface water connections with other wetlands or water bodies. Pools fill with snowmelt or runoff in the spring, although some may be fed primarily by groundwater sources. The duration of surface flooding, known as hydroperiod, caries depending upon the pool and the year; vernal pool hydroperiods range along a continuum from less than 30 days to more than one year. Pools are generally small in size (<2 acres), with the extent of vegetation varying widely. They lack established fish populations, usually as a result of periodic drying, and support communities dominated by animals adapted to living in temporary, fishless pools. In the region, they provide essential breeding habitat for one or more wildlife species including Ambystomid 1 | Page Vernal Pool Assessment Storrs Road, Mansfield, Connecticut salamanders (Ambystoma spp., called “mole salamanders” because they live in burrows), wood frogs (Rana sylvatica), and fairy shrimp (Eubranchipus spp.).” Most vernal pool indicator species enter pools to breed in the late winter or early spring (March- April), with juvenile dispersal from pools occurring from June – October. The exception to this is the marbled salamander which breeds in pools in late summer and early fall (August- September), with juvenile dispersal occurring from May – July. 3.0 TERRESTRIAL (NON-BREEDING) HABITAT Vernal pool wildlife utilize upland (non-wetland) forested habitat adjacent to vernal pools (Colburn, 2004). The forest provides terrestrial non-breeding habitat for amphibians, where they feed on the forest floor and shelter beneath surficial cover objects (e.g., rocks, logs) and within fossorial small mammal burrows. Forests not only provide habitat, but the trees adjacent to vernal pools are critical to vernal pool ecology, as they contribute to the food web (via detritus inputs), help maintain cool water temperatures, and affect pool hydrology (Colburn, 2004). Vernal pool amphibians disperse a significant distance into forests surrounding vernal pools. A number of studies have documented dispersal distances of indicator species (Colburn 2004, Windmiller 1996, Semlitsch 1998). Individuals commonly migrate 400-800 meters or more from uplands to their breeding pool (Colburn 2004). 4.0 SURVEY METHODS Site visits were conducted on April 16th and May 10th, 2019. The purpose of those visits was to search site wetlands for larval and adult amphibians in areas of shallow water. This work was timed appropriate to record the early spring breeding activity of vernal pool wildlife. Aquatic and semi-aquatic species were also catalogued. On both site visits two biologists waded through site wetlands and visually surveyed for egg masses, used dipnets to search for larval and adult amphibians within the water column, and cover searched the wetland-upland interface to look for amphibians under cover objects (rocks, logs and other surficial material). On the May 10th survey, two biologists utilized a seine net and dipnets to capture and inventory species located in the deeper portions of the pond and surrounding marsh habitats. During both surveys, any amphibians heard chorusing were also noted. 2 | Page Vernal Pool Assessment Storrs Road, Mansfield, Connecticut 5.0 SURVEY RESULTS 5.1 Wetland Characteristics Two wetlands occur on the site. The primary wetland, which occupies a large portion of the survey area, forms the headwaters to Cedar Swamp Brook. The system is part of the Willimantic River sub regional drainage basin. This wetland includes a pond (totaling ca. 1.5 acres) and bordering marsh with a narrow fringing shrub swamp. The northeastern and southwestern portions of this wetland are forested. These cover types are noted on Figure 2. Wetland hydrology varies across the wetland in response to the variable topography but consists predominately of permanently ponded wetlands. This hydrology has been enhanced and maintained by beaver, as there is an active beaver dam located at the southwest side of the wetland. The western portions of the wetland consist of open water (i.e., pond), while the shallower fringes along the eastern side are densely vegetated. Areas of dense submergent aquatic and emergent vegetation are present within the open marsh portions of the wetland. The southeastern, northeastern and northwestern portions of the wetland are forested. The hydrology in these forested areas is largely saturated to temporarily flooded. The wetland drains in a southwesterly direction (into Cedar Swamp Brook). A second small wetland (field demarcated by wetland flag #42-53) straddles the southern site boundary near Professional Park Road. This wetland is a small gently sloped forested wetland with a saturated hydrology. The wetland does not contain areas of prolonged standing (or flowing) water and therefore offers little habitat for wetland-dependent wildlife. It is not a vernal pool. 5.2 Vernal Pool Survey Results & Wildlife Observed Wetland-dependent and wetland-associated wildlife observed during the survey work are listed below in Table 1: Table 1: species observed Common Name Scientific Name Spring peeper Psuedacris crucifer Green frog Rana clamitans Bullfrog Rana catesbeiana Wood frog Lithobates sylvaticus Pickerel frog Rana palustris Gray treefrog Hyla versicolor Redback salamander Plethodon cinereus Red-spotted newt Notopthalmus viridescens 3 | Page Vernal Pool Assessment Storrs Road, Mansfield, Connecticut Table 1 continued… Garter snake Thamnophis sirtalis Painted turtle Chrysemys picta Fish Bluegill Lepomis macrochirus Pumpkinseed Lepomis gibbosus Chain pickerel Esox niger Golden shiner Notemigonus crysoleucas Minnows Birds Mallard Anas platyrhynchos Canada goose Branta canadensis Red-winged blackbird Agelaius phoeniceus Eastern kingbird Tyrannus tyrannus Tree swallow Tachycineta bicolor Barn swallow Hirundo rustica No vernal pools were found on the site. The wildlife assemblage present is dominated by limnetic species that inhabit open water. These species require permanent flooding, as opposed to seasonal flooding (i.e., along with seasonal drying) utilized by vernal pool species. The littoral zone, located on the fringes of the pond where the water is shallow and emergent and submergent vegetation occur, is occupied by species that favor marsh habitats
Load more

Recommended publications
  • Wetland Restoration USING the Ground Water TECHNIQUE
    Wetland ResTORATION USING THE Ground water TECHNIQUE How to build a ground water wetland three important vernal pool zones A ground water wetland fills with water the way a hand-dug well does, by exposing a high water table near the surface. Check for a high water table near a woodland oasis The vernal pool basin or depression is the area that floods in the fall or the center of a potential restoration site. Dig a hole at least 3 feet deep with a spring. This is where vernal pool amphibians and invertebrates breed and post-hole digger, soil auger, or shovel. Watch for water seeping into the hole A vernal pool is like a small oasis of food, water, and shelter for all kinds of lay their eggs, and their young hatch out, feed, and develop (Brown and from the bottom and sides. A high water table will fill the hole partially or woodland wildlife. Large game species such as turkeys, deer, and bears frequent Jung, 2005). The vernal pool basin is the core wetland area protected by state completely with water; listen for the slurp of water as a soil auger is removed. vernal pools, along with a variety of other wildlife including bats, ducks, and federal regulations. The vernal pool basin should be designated as a ‘no Clay soils are not needed to build a ground water wetland because the songbirds, turtles, and snakes. Vernal pools are unique among wetlands disturbance zone.’ depression simply exposes the water table. A seasonally high water table can because they support specialized pool-breeding salamanders, frogs, insects, The vernal pool envelope is the upland habitat immediately surrounding be hard to detect during the summer or any period of drought (Biebighauser, and crustaceans.
    [Show full text]
  • Leaf Litter Decomposition in Vernal Pools of a Central Ontario Mixedwood Forest
    Leaf Litter Decomposition in Vernal Pools of a Central Ontario Mixedwood Forest by Kirsten Verity Otis A Thesis presented to The University of Guelph In partial fulfilment of requirements for the degree of Master of Science in Environmental Science Guelph, Ontario, Canada © Kirsten V. Otis, July, 2012 ABSTRACT LEAF LITTER DECOMPOSITION IN VERNAL POOLS OF A CENTRAL ONTARIO MIXEDWOOD FOREST Kirsten V. Otis Advisors: University of Guelph, 2012 Dr. Jonathan Schmidt Dr. Shelley Hunt Vernal pools are small, seasonally filling wetlands found throughout forests of north eastern North America. Vernal pools have been proposed as potential 'hot spots' of carbon cycling. A key component of the carbon cycle within vernal pools is the decomposition of leaf litter. I tested the hypothesis that leaf litter decomposition is more rapid within vernal pools than the adjacent upland. Leaf litter mass losses from litterbags incubated in situ within vernal pools and adjacent upland habitat were measured periodically over one year and then again after two years. The experiment was carried out at 24 separate vernal pools, over two replicate years. This is a novel degree of replication in studies of decomposition in temporary wetlands. Factors influencing decomposition, such as duration of flooding, water depth, pH, temperature, and dissolved oxygen were measured. Mass loss was greater within pools than adjacent upland after 6 months, equal after 12 months, and lower within pools than adjacent upland after 24 months. This evidence suggests that vernal pools of Central Ontario are 'hot spots' of decomposition up to 6 months, but not after 12 and 24 months. In the long term, vernal pools may reduce decomposition rates, compared to adjacent uplands.
    [Show full text]
  • Biological Resources Assessment the Ranch ±530- Acre Study Area City of Rancho Cordova, California
    Biological Resources Assessment The Ranch ±530- Acre Study Area City of Rancho Cordova, California Prepared for: K. Hovnanian Homes October 13, 2017 Prepared by: © 2017 TABLE OF CONTENTS 1.0 Introduction ......................................................................................................................... 1 1.1. Project Description ........................................................................................................... 1 2.0 Regulatory Framework ........................................................................................................ 2 2.1. Federal Regulations .......................................................................................................... 2 2.1.1. Federal Endangered Species Act ............................................................................... 2 2.1.2. Migratory Bird Treaty Act ......................................................................................... 2 2.1.3. The Bald and Golden Eagle Protection Act ............................................................... 2 2.2. State Jurisdiction .............................................................................................................. 3 2.2.1. California Endangered Species Act ........................................................................... 3 2.2.2. California Department of Fish and Game Codes ...................................................... 3 2.2.3. Native Plant Protection Act .....................................................................................
    [Show full text]
  • Portsmouth Vernal Pool Inventory
    Portsmouth Vernal Pool Inventory Prepared for: City of Portsmouth, NH Conservation Commission Prepared by: 122 Mast Road, Suite 6, Lee, NH 03861 in cooperation with The City of Portsmouth Planning Department and October 2008 TABLE OF CONTENTS I. Executive Summary II. Vernal Pools Defined III. Methodology IV. Vernal Pool Documentation Sheet V. Findings and Focus Area Summaries VI. Focus Area and Pool Location Maps VII. References Appendices A. Vernal Pool Documentation Sheets B. Proposed Revisions to Wetland Protection Regulations C. Aerial Photo Field Sheets City of Portsmouth Vernal Pool Inventory Report Page 1 I. EXECUTIVE SUMMARY West Environmental, Inc. (WEI) conducted a city-wide Vernal Pool Inventory to locate, document and map vernal pools in Portsmouth. This effort was coordinated with the Portsmouth Planning Department and Conservation Commission to help the City of Portsmouth in vernal pool identification and mapping. The goal of this project was to locate isolated wetlands that provide vernal pool habitat. Currently the City of Portsmouth’s wetland regulations exempt wetlands less than 5,000 square feet from the local 100’ buffer zone. This study identified smaller wetlands which have the potential to provide vernal pool habitat that may deserve the 100 foot buffer protection. It should be noted that vernal pool habitat can exist in a variety of freshwater wetlands including larger red maple swamps. These areas were also mapped when encountered. A field workshop was held for the Conservation Commission members to give them hands-on training in vernal pool ecology. The results of this Vernal Pool Inventory were presented to the Portsmouth Conservation Commission in July of 2008.
    [Show full text]
  • Vernal Pool Vernal Pool, Page 1 Michael A
    Vernal Pool Vernal Pool, Page 1 Michael A. Kost Michael Overview: Vernal pools are small, isolated Introduction and Definitions: Temporary water wetlands that occur in forested settings throughout pools can occur throughout the world wherever the Michigan. Vernal pools experience cyclic periods ground or ice surface is concave and liquid water of water inundation and drying, typically filling gains temporarily exceed losses. The term “vernal with water in the spring or fall and drying during pool” has been widely applied to temporary pools the summer or in drought years. Substrates that normally reach maximum water levels in often consist of mineral soils underlain by an spring (Keeley and Zedler 1998, Colburn 2004). impermeable layer such as clay, and may be In northeastern North America, vernal pool and covered by a layer of interwoven fibrous roots similar interchangeable terms have focused even and dead leaves. Though relatively small, and more narrowly upon pools that are relatively small, sometimes overlooked, vernal pools provide critical are regularly but temporarily flooded, and are habitat for many plants and animals, including rare within wooded settings (Colburn 2004, Calhoun species and species with specialized adaptations for and deMaynadier 2008, Wisconsin DNR 2008, coping with temporary and variable hydroperiods. Ohio Vernal Pool Partnership 2009, Vermont Vernal pools are also referred to as vernal ponds, Fish & Wildlife Department 2004, Tesauro 2009, ephemeral ponds, ephemeral pools, temporary New York Natural Heritage Program 2009, pools, and seasonal wetlands. Commonwealth of Massachusetts Division of Michigan Natural Features Inventory P.O. Box 30444 - Lansing, MI 48909-7944 Phone: 517-373-1552 Vernal Pool, Page 2 Fisheries and Wildlife 2009, Maine Department of community types (see Kost et al.
    [Show full text]
  • Forestry Habitat Management Guidelines for Vernal Pool Wildlife
    $8.00 Forestry Habitat Management Guidelines for Vernal Pool Wildlife Metropolitan Conservation Alliance a program of MCA Technical Paper Series: No. 6 Aram J. K. Calhoun, Ph.D. Department of Plant, Soil, and Environmental Sciences University of Maine, Orono, Maine 04469 Maine Audubon 20 Gilsland Farm Rd., Falmouth, Maine 04105 Phillip deMaynadier, Ph.D. Maine Department of Inland Fisheries and Wildlife Endangered Species Group, 650 State Street, Bangor, Maine 04401 A cooperative publication of the University of Maine, Maine Audubon, Maine Department of Inland Fisheries and Wildlife, Maine Department of Conservation, and the Wildlife Conservation Society. Cover illustration: Nancy J. Haver Suggested citation: Calhoun, A. J. K. and P. deMaynadier. 2004. Forestry habitat management guidelines for vernal pool wildlife. MCA Technical Paper No. 6, Metropolitan Conservation Alliance, Wildlife Conservation Society, Bronx, New York. Additional copies of this document can be obtained from: Maine Audubon 20 Gilsland Farm Road, Falmouth, ME 04105 (207) 781-2330 -------- Maine Department of Inland Fisheries and Wildlife 284 State Street, 41 SHS, Augusta, ME 04333 (207) 287-8000 -------- Metropolitan Conservation Alliance, Wildlife Conservation Society 68 Purchase Street, 3rd Floor, Rye, New York 10580 (914) 925-9175 ISBN 0-9724810-1-X ISSN 1542-8133 Printed on partially recycled paper. ACKNOWLEDGEMENTS THE PROCESS OF GUIDELINE DEVELOPMENT BENEFITED from active participation by Maine’s forest products industry (Georgia-Pacific Corp., Great Northern
    [Show full text]
  • Pennsylvania Statewide Seasonal Pool Ecosystem Classification
    Pennsylvania Statewide Seasonal Pool Ecosystem Classification Description, mapping, and classification of seasonal pools, their associated plant and animal communities, and the surrounding landscape April 2009 Pennsylvania Natural Heritage Program i Cover photo by: Betsy Leppo, Pennsylvania Natural Heritage Program ii Pennsylvania Natural Heritage Program is a partnership of: Western Pennsylvania Conservancy, Pennsylvania Department of Conservation and Natural Resources, Pennsylvania Fish and Boat Commission, and Pennsylvania Game Commission. The project was funded by: Pennsylvania Department of Conservation and Natural Resources, Wild Resource Conservation Program Grant no. WRCP-06187 U.S. EPA State Wetland Protection Development Grant no. CD-973493-01 Suggested report citation: Leppo, B., Zimmerman, E., Ray, S., Podniesinski, G., and Furedi, M. 2009. Pennsylvania Statewide Seasonal Pool Ecosystem Classification: Description, mapping, and classification of seasonal pools, their associated plant and animal communities, and the surrounding landscape. Pennsylvania Natural Heritage Program, Western Pennsylvania Conservancy, Pittsburgh, PA. iii ACKNOWLEDGEMENTS We would like to thank the following organizations, agencies, and people for their time and support of this project: The U.S. Environmental Protection Agency (EPA) and the Pennsylvania Department of Conservation and Natural Resources (DCNR) Wild Resource Conservation Program (WRCP), who funded this study as part of their effort to encourage protection of wetland resources. Our appreciation to Greg Czarnecki (DCNR-WRCP) and Greg Podniesinski (DCNR-Office of Conservation Science (OCS)), who administered the EPA and WRCP funds for this work. We greatly appreciate the long hours in the field and lab logged by Western Pennsylvania Conservancy (WPC) staff including Kathy Derge Gipe, Ryan Miller, and Amy Myers. To Tim Maret, and Larry Klotz of Shippensburg University, Aura Stauffer of the PA Bureau of Forestry, and Eric Lindquist of Messiah College, we appreciate the advice you provided as we developed this project.
    [Show full text]
  • Annual Migrations of Forest Amphibians
    Annual Migrations of Forest Amphibians Photo by L. Heady Laura Heady Conservation and Land Use Coordinator Hudson River Estuary Program Hudson River Estuary …an arm of the sea • 153 miles from NY Harbor to Troy • Tidal to Troy Dam • ~60 tributaries to Hudson Photo by L. Heady • 85% of NY’s amphibians (28 species) are found in the watershed! (Penhollow et al. 2006) Photo by Laura Heady Photo by NYSDEC Today’s Focus: Vernal Pool Breeding Amphibians Photo by Erik Kiviat Photo by Charlie West Exciting Facts about Pool-Breeding Amphibians in the Hudson Valley • They are terrestrial and live in the forest! • They breed in vernal pools! • Their larvae are aquatic! Photos by L. Heady A B Forest Habitat Vernal Pool Habitat • fallen logs • surrounded by forest • leaf litter • isolated wetland • small animal burrows • seasonal inundation Photos by L. Heady salamander larvae wood frog tadpoles salamander egg masses Heady L. Photos by m spotted salamander a Photo by Laura Heady n y Photo by L. Heady Jefferson’s salamander blue-spotted salamander Photo by Laura Heady Photo by Erik Kiviat These commonly hybridize. Jefferson/blue-spotted s salamander complex o m e Photo by Josh Hunn Jefferson/blue-spotted salamander complex Photo by Brian Houser Jefferson/blue-spotted salamander complex Photo by Jim Clayton marbled salamander f e w (breeds in the fall) Photo by Brian Houser m wood frog a n y Photo by M. Barnhart wood frog More! Exciting Facts about Pool-Breeding Amphibians in the Hudson Valley • They are largely nocturnal. • They practice cutaneous air exchange! Photos by L.
    [Show full text]
  • 2.3 Avian Uses of Vernal Pools and Implications for Conservation Practice
    Avian Uses of Vernal Pools and Implications for Conservation Practice JOSEPH G. SILVEIRA U. S. Fish and Wildlife Service, Sacramento National Wildlife Refuge Complex, Willows, CA 95988 ([email protected]) ABSTRACT. Vernal pool landscapes consist of vernal pools and their surrounding physiographical and biological environ- ments. They provide important habitats for both resident and migratory birds. Avian species are adapted to exploit the various zones and hydrologic phases of vernal pools which are characterized by spatial and temporal patterns of wet to dry habitats. Waterfowl and shorebirds use different types of wetland habitats in relation to their annual behavioral and energy cycle. During the spring, ducks feed on invertebrates which are abundant in ephemeral wetlands such as vernal pools. Invertebrates are important sources of protein and calcium needed for migration and reproduction. Cackling and Ross’ geese, during spring hyperphagia, spend long hours grazing on protein rich plants in herbaceous habitats adjacent to vernal pools. Several species of shorebirds are observed in vernal pool landscapes during winter, spring migration, and nesting periods. On a local scale, vernal pools are part of a complex of habitats where a diversity of birds use various resources. On a regional scale, vernal pool landscapes of the Central Valley’s eastern margin enhance migratory bird habitats of the valley floor. Vernal pools are also significant on a continental scale, providing vital links in the California portion of the Pacific Flyway corridor. Vast, intact vernal pool landscapes are necessary for continued large scale avian use. Conservation ease- ments that protect core areas, and land management agreements which include livestock grazing to maintain avian diversity, are needed to protect irreplaceable vernal pool landscapes in the future.
    [Show full text]
  • Terrestrial Influences on the Macroinvertebrate Biodiversity of Temporary Wetlands
    TERRESTRIAL INFLUENCES ON THE MACROINVERTEBRATE BIODIVERSITY OF TEMPORARY WETLANDS Michael A. Plenzler A Dissertation Submitted to the Graduate College of Bowling Green State University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2012 Committee: Dr. Helen Michaels, Advisor Dr. Enrique Gomezdelcampo Graduate Faculty Representative Dr. Jeff Miner Dr. Karen Root Dr. Amy Downing ! ii! ABSTRACT Dr. Helen J. Michaels, Advisor Vernal pools are temporary wetlands and local-scale biodiversity hot spots for a variety of amphibians, macroinvertebrates, and plants because their seasonal drying prevents the establishment of predatory fish populations. Vernal pools are often of conservation concern because of the amphibian populations; however, the emphasis on these organisms often eclipses the macroinvertebrates, which are important predators, prey, and nutrient cyclers in wetlands and the surrounding habitat. Hydroperiod and water chemistry are thought to be the primary regulators of vernal pool macroinvertebrates, but the surrounding habitat also affects these organisms. Specifically, canopy cover and forest composition can alter the autochthonous and allochthonous carbon sources for wetland food webs. My research objectives were to understand how variations in these factors affect macroinvertebrate diversity and community composition. In 2009, I conducted a field survey of fifteen vernal pools that varied in area, depth, hydroperiod, canopy and surrounding land use. I measured several habitat conditions, assessed the biotic communities of these wetlands, and found that canopy cover influenced bottom-up productivity and macroinvertebrate diversity. I used the results of this study to determine how known macroinvertebrate communities respond to variation in canopy cover in mesocosm wetlands. The low canopy treatments sustained the highest macroinvertebrate abundance, family richness, and Shannon diversity, as greater algal productivity increased resources available to support the macroinvertebrate communities.
    [Show full text]
  • Section 2 Vernal Pool Slides Vernal Pools by Ava, Si, Leighton,And Cindy What Is a Vernal Pool?
    Section 2 Vernal Pool Slides Vernal Pools By Ava, Si, Leighton,and Cindy What is a Vernal Pool? A Vernal Pool is a pool that isn’t always wet and consists of lots of special wild life. It provides habitat for unique plants and animals and are usually considered to be a distinctive type of wetland. They are also designed to allow safe development for certain species such as the wood frog, spotted salamander, and fairy shrimp. They can also range in size, from being as big as a lake or as small as a puddle, so no fish are present. Graph of Current Diameter 2011-2012 2012-2013 2013-2014 2014-2015 Current Diameter Food Web Leaves Fungi/Bacteria Zooplankton Salamander Larvae Insect Larvae Beetles/Dragonflies Marbled Salamander Larvae Other Insects Tadpoles Spotted Turtles Everything Amphibians Wading Birds Raccoons Owls What seasonal changes take place in Vernal Pools? Every Vernal Pool dries up systematically. While most pools dry out every year around summer time, others will keep wet year round. If a pool doesn’t have any plants in it, it may become lush with vegetation, while others that do have plants will become very dry or mucky form the soil. A vernal pool is usually able to spot, even during it’s dry phase, as its leaves may turn gray, or there may be water marks on the tree trunks. This probably happens because the air around the pool becomes less moist in the summer, and there is much less rain. Temperatures dropping in Vernal Pools is another large issue today.
    [Show full text]
  • Assessing Hydrology, Carbon Flux, and Soil Spatial Variability Within Vernal Pool Wetlands
    University of Rhode Island DigitalCommons@URI Open Access Master's Theses 2017 Assessing Hydrology, Carbon Flux, and Soil Spatial Variability Within Vernal Pool Wetlands Bianca N. Ross University of Rhode Island, [email protected] Follow this and additional works at: https://digitalcommons.uri.edu/theses Recommended Citation Ross, Bianca N., "Assessing Hydrology, Carbon Flux, and Soil Spatial Variability Within Vernal Pool Wetlands" (2017). Open Access Master's Theses. Paper 1014. https://digitalcommons.uri.edu/theses/1014 This Thesis is brought to you for free and open access by DigitalCommons@URI. It has been accepted for inclusion in Open Access Master's Theses by an authorized administrator of DigitalCommons@URI. For more information, please contact [email protected]. ASSESSING HYDROLOGY, CARBON FLUX, AND SOIL SPATIAL VARIABILITY WITHIN VERNAL POOL WETLANDS BY BIANCA N. ROSS A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN BIOLOGICAL AND ENVIRONMENTAL SCIENCES UNIVERSITY OF RHODE ISLAND 2017 MASTER OF SCIENCE THESIS OF BIANCA N. ROSS APPROVED: Thesis Committee: Major Professor Mark Stolt Jose Amador Cathleen Wigand Nasser H. Zawia DEAN OF THE GRADUATE SCHOOL UNIVERSITY OF RHODE ISLAND 2017 ABSTRACT Vernal pools are small isolated wetlands that are covered by shallow water for variable periods in the winter and spring but may be completely dry for most of the summer and fall. Despite their small size, vernal pools are a dominant wetland type throughout New England. These wetlands are hotspots of floral and faunal biodiversity, as their unique hydrology and landscape characteristics allow them to serve as a home and breeding ground for many distinct plant and animal species.
    [Show full text]