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Books > Earth & environment > Geography > Physical geography > General
This report to the Congress details the status and trends of our
Nation's wetlands. It covers the period from 1986 to 1997, and
provides the most recent and comprehensive estimates of the current
status of wetland area throughout the conterminous United States
and the losses or gains to various wetland types that have occurred
during this time.
The purpose of this publication is to report the findings of the
Service's wetlands inventory of Rhode Island.
The U.S. Geological Survey (USGS), a nonregulatory Federal science
agency with national scope and responsibilities, is uniquely
positioned to serve the Nation's needs in understanding and
responding to global change, which includes changes in climate; sea
level; land use and land cover; ecosystems; and the global water,
carbon, and nitrogen cycles. Global change is among the most
challenging and formidable issues confronting our Nation and
society. Scientists agree that global environmental changes during
this century will have far-reaching societal implications
Intergovernmental Panel on Climate Change (IPCC), 2007; USGCRP,
2009]. In the face of these complex challenges, the Nation can
benefit greatly by using natural science information in
decisionmaking.
As part of the U.S. Geological Survey Priority Ecosystems Science
initiative to provide the ecological science required during
Everglades restoration, we have integrated current regional
hydrologic models with American crocodile research and monitoring
data to create a model that assesses the potential impact of
Comprehensive Everglades Restoration Plan efforts on the American
crocodile.
Although parasites play important ecological roles through the
direct interactions they have with their hosts, historically that
fact has been underappreciated. Today, scientists have a growing
appreciation of the scope of such impacts. Parasites have been
reported to dominate food webs (Bakker and others, 1997; Lafferty
and others, 2006), alter predator-prey relationships (Lafferty and
Morris, 1996), act as ecosystem engineers (Thomas and others, 1998,
1999), and alter community structure (Poulin, 1999; Wood and
others, 2007). In spite of this growing awareness in the scientific
community, parasites are still often neglected in the consideration
of the management and conservation of resources and ecosystems
(Marcogliese, 2004). Given that at least half of the organisms on
earth are probably parasitic (Price, 1980; Windsor, 1998), it
should be evident that the ecological functions of parasites
warrant greater attention.
Increasingly, dry rangelands are being valued for multiple services
beyond their traditional value as a forage production system.
Additional ecosystem services include the potential to store carbon
in the soil and plant biomass. In addition, dust emissions from
rangelands might be considered an ecosystem detriment, the opposite
of an ecosystem service. Dust emitted may have far-reaching
impacts, for example, reduction of local air quality, as well as
altering regional water supplies through effects on snowpack. Using
an extensive rangeland monitoring dataset in the greater
Canyonlands region (Utah, USA), we developed a method to estimate
indices of the provisioning of three ecosystem services (forage
production, dust retention, C storage) and one ecosystem property
(nativeness), taking into account both ecosystem type and
alternative states within that ecosystem type. We also integrated
these four indices into a multifunctionality index. Comparing the
currently ungrazed Canyonlands National Park watersheds to the
adjacent Dugout Ranch pastures, we found clearly higher
multifunctionality was attained in the Park, and that this was
primarily driven by greater C-storage and better dust retention. It
is unlikely to maximize all benefits and minimize all detriments at
the same time. Some goods and services may have synergistic
interactions; for example, managing for carbon storage will
increase plant and biocrust cover likely lowering dust emission.
Likewise, some may have antagonistic interactions. For instance, if
carbon is consumed as biomass for livestock production, then carbon
storage may be reduced. Ultimately our goal should be to quantify
the monetary consequences of specific land use practices for
multiple ecosystem services and determine the best land use and
adaptive management practices for attaining multiple ecosystem
services, minimizing economic detriments, and maximizing economic
benefits from multi-commodity rangelands. Our technique is the
first step toward this goal, allowing the simultaneous
consideration of multiple targeted ecosystem services and
properties.
The national parks within the Greater Yellowstone Ecosystem (GYE)
provide an opportunity to monitor amphibians within a relatively
intact ecosystem, at spatial and temporal scales that can provide
important insights about the status of regional amphibian
populations and global declines of amphibians. The Greater
Yellowstone Network (GRYN) amphibian monitoring program is the only
long-term amphibian monitoring program in the GYE that consistently
looks at multiple sites across the ecosystem.
This annual report details the status of key stream channel
characteristics and riparian attributes obtained from the first
season of monitoring in Doan and Mill Creeks within Whitman Mission
National Historic Site (WHMI). This report is intended as a release
of basic data sets and data summaries. Care has been taken to
assure accuracy of raw data values, but thorough analysis and
interpretation of the data has not been completed. More extensive
analysis and discussion of stream channel characteristics and
riparian will occur as part of the trend analysis, which will be
available after 3 years of monitoring data become available.
This annual report details the status of key indicators of water
quality obtained from monitoring in John Day Fossil Beds National
Monument (JODA). Monitoring occurred in two units of JODA, Painted
Hills and Sheep Rock. Bridge Creek flows through the Painted Hills
unit and the John Day River flows through the Sheep Rock unit.
In 2009, the authors initiated a small pilot survey of six limber
pine stands in CRMO following the Interagency Whitebark Pine
Monitoring Protocol for the Greater Yellowstone Ecosystem (Greater
Yellowstone Whitebark Pine Monitoring Working Group hereafter
referred to as GYWPMWG] 2007). No blister rust was found during
that survey, although mountain pine beetle galleries were found in
several trees, and dwarf mistletoe was ubiquitous. In 2010 the
authors tested a draft version of the protocol currently being used
by the Upper Columbia Basin Network (UCBN), as well as the Klamath
Network (KLMN) and Sierra Nevada Network (SIEN; McKinney et al.
2012). In 2011 the authors implemented the first full panel of 30
plots, plus two oversamples, following approval of the McKinney et
al. (2012) protocol. Results from 2011 are reported in Stucki and
Rodhouse (2012). This report presents the results for the second
full panel of 30 plots established and surveyed in August 2012.
Note that panel 2 includes the two oversample plots that were
established in 2011. This is the second formal year of protocol
implementation, and the permanent plots established in 2012
represent the second of 3 panels of plots that will be monitored
into the future.
The Saugus Iron Works National Historic Site (site) conducted an
invasive plant survey during the summer of 2003 to generate
baseline data in order to manage and assess the spatial impact of
invasive plants. The primary goals of this study: 1) determine
which invasive plant species inhabit the site; 2) determine the
percent cover and density of the dominant invasive plant species;
and 3) map where the dominant invasive plant species occur within
the site.
Acclaimed historian Natalie Zemon Davis's accessible and dramatic
biography was widely hailed as a masterpiece and tells the story of
Leo Africanus, a sixteenth-century Moroccan who embodies the rich
and complex exchanges between Europe and Africa during the
Renaissance. Trickster Travels offers a virtuoso study of the
fragmentary, partial and often contradictory traces that al-Hasan
al-Wazzan left behind him, and is a superb interpretation of his
extraordinary life and work.
This CCP is the culmination of a planning process that began in
January 1999. Numerous meetings with the public, the state, and
conservation partners were held to identify and evaluate management
alternatives. A draft CCP and Environmental Assessment (CCP/EA) was
distributed in July 2003. This CCP presents the management goals,
objectives, and strategies that we believe will best achieve our
vision for the refuge, contribute to the National Wildlife Refuge
System (Refuge System) Mission, achieve refuge purposes and legal
mandates, and serve the American public.
In 2009, the authors initiated a small pilot survey of six limber
pine stands in CRMO following the Interagency Whitebark Pine
Monitoring Protocol for the Greater Yellowstone Ecosystem (Greater
Yellowstone Whitebark Pine Monitoring Working Group hereafter
referred to as GYWPMWG] 2007). No blister rust was found during
that survey, although mountain pine beetle galleries were found in
several trees, and dwarf mistletoe was ubiquitous. In 2010 authors
tested a draft version of the protocol currently being used by the
Upper Columbia Basin Network (UCBN), as well as the Klamath Network
(KLMN) and Sierra Nevada Network (SIEN; McKinney et al. in
revision). The results reported in this report were generated in
2011 with data collected following an updated protocol by McKinney
et al. (in revision). This is the first formal year of protocol
implementation, and the permanent plots established in 2011
represent the first of 3 "panels" of plots that will be monitored
into the future.
Throughout the world, freshwater ecosystems are considered to be
among the most vulnerable systems. In the isolated Pacific islands
there are a relatively small number of native freshwater species,
which are mainly endemic to these locations (found nowhere else in
the world). These species are characterized by an amphidromous
lifecycle; reproducing in the stream, with larvae drifting to the
ocean and eventually returning to a stream as juveniles and
spending the remainder of their lifecycle there. Throughout the
region, native flora and fauna face significant threats from
species introductions and habitat destruction. The National Parks
in the Pacific Island Network (PACN) protect some of the last
relatively pristine stream systems. Monitoring based on this
protocol: Pacific Islands Stream Monitoring: Fish, Shrimp, Snails
and Habitat Characterization, will provide park managers with some
of the information necessary to understand status and trends in
biotic integrity within park stream systems.
This document reports on analyses and other efforts to evaluate
various aspects of the monitoring protocols relevant to the big
river parks, and serves as an administrative history and record of
decisions made during the revision process. The primary purpose of
this report is to document evaluation of potential changes to the
monitoring of fish and aquatic invertebrates at BUFF and OZAR.
Changes that have been considered include sampling fewer sites,
sampling less frequently, collecting fewer invertebrate samples per
site, collecting data on fewer habitat variables, and not
collecting data on fish lengths and weights. Based on this review,
recommendations are made for revising the protocols associated with
sampling and analysis of data from the big river systems of BUFF
and OZAR.
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