Browsing by Subject "Ecosystem"
Now showing items 1-20 of 70
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A mechanistic-bioclimatic modeling analysis of the potential impact of climate change on biomes of the Tibetan Plateau.
(Ecology, 2014-08)The Tibetan Plateau (TP) is experiencing high rates of climatic change. We present a novel combined mechanistic-bioclimatic modeling approach to determine how changes in precipitation and temperature on the TP may impact ... -
A molecular phylogeny of the fern family Pteridaceae: assessing overall relationships and the affinities of previously unsampled genera.
(Molecular phylogenetics and evolution, 2007-09)The monophyletic Pteridaceae accounts for roughly 10% of extant fern diversity and occupies an unusually broad range of ecological niches, including terrestrial, epiphytic, xeric-adapted rupestral, and even aquatic species. ... -
A novel framework for analyzing conservation impacts: evaluation, theory, and marine protected areas.
(Ann N Y Acad Sci, 2017-07)Environmental conservation initiatives, including marine protected areas (MPAs), have proliferated in recent decades. Designed to conserve marine biodiversity, many MPAs also seek to foster sustainable development. As is ... -
Algal blooms and the nitrogen-enrichment hypothesis in Florida springs: evidence, alternatives, and adaptive management.
(Ecol Appl, 2010-04)Contradictions between system-specific evidence and broader paradigms to explain ecosystem behavior present a challenge for natural resource management. In Florida (U.S.A.) springs, increasing nitrate (NO3-) concentrations ... -
An ecological perspective on nanomaterial impacts in the environment.
(J Environ Qual, 2010-11)Growing concerns over the potential for unintended, adverse consequences of engineered nanoparticles (ENPs) in the environment have generated new research initiatives focused on understanding the ecological effects of ENPs. ... -
An estimate of the number of tropical tree species.
(Proc Natl Acad Sci U S A, 2015-06-16)The high species richness of tropical forests has long been recognized, yet there remains substantial uncertainty regarding the actual number of tropical tree species. Using a pantropical tree inventory database from closed ... -
Bird extirpations and community dynamics in an Andean cloud forest over 100 years of land-use change.
(Conservation biology : the journal of the Society for Conservation Biology, 2020-06)Long-term studies to understand biodiversity changes remain scarce-especially so for tropical mountains. We examined changes from 1911 to 2016 in the bird community of the cloud forest of San Antonio, a mountain ridge in ... -
Calibrating single-ended fiber-optic Raman spectra distributed temperature sensing data.
(Sensors (Basel), 2011)Hydrologic research is a very demanding application of fiber-optic distributed temperature sensing (DTS) in terms of precision, accuracy and calibration. The physics behind the most frequently used DTS instruments are considered ... -
Climate change, disease range shifts, and the future of the Africa lion.
(Conservation biology : the journal of the Society for Conservation Biology, 2018-10) -
Costa Rica's payment for environmental services program: intention, implementation, and impact.
(Conserv Biol, 2007-10)We evaluated the intention, implementation, and impact of Costa Rica's program of payments for environmental services (PSA), which was established in the late 1990s. Payments are given to private landowners who own land ... -
Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment.
(Nature communications, 2019-02)Increasing atmospheric CO2 stimulates photosynthesis which can increase net primary production (NPP), but at longer timescales may not necessarily increase plant biomass. Here we analyse the four decade-long CO2-enrichment ... -
Decoupling the effects of logging and hunting on an afrotropical animal community.
(Ecol Appl, 2011-07)In tropical forests, hunting nearly always accompanies logging. The entangled nature of these disturbances complicates our ability to resolve applied questions, such as whether secondary and degraded forest can ... -
Differential nutrient limitation of soil microbial biomass and metabolic quotients (qCO2): is there a biological stoichiometry of soil microbes?
(PLoS One, 2013)BACKGROUND: Variation in microbial metabolism poses one of the greatest current uncertainties in models of global carbon cycling, and is particularly poorly understood in soils. Biological Stoichiometry theory describes ... -
Discharge competence and pattern formation in peatlands: a meta-ecosystem model of the Everglades ridge-slough landscape.
(PLoS One, 2013)Regular landscape patterning arises from spatially-dependent feedbacks, and can undergo catastrophic loss in response to changing landscape drivers. The central Everglades (Florida, USA) historically exhibited regular, linear, ... -
Dramatic variability of the carbonate system at a temperate coastal ocean site (Beaufort, North Carolina, USA) is regulated by physical and biogeochemical processes on multiple timescales.
(PLoS One, 2013)Increasing atmospheric carbon dioxide (CO2) from anthropogenic sources is acidifying marine environments resulting in potentially dramatic consequences for the physical, chemical and biological functioning of these ecosystems. ... -
Eco-evolutionary feedbacks in community and ecosystem ecology: interactions between the ecological theatre and the evolutionary play.
(Philos Trans R Soc Lond B Biol Sci, 2009-06-12)Interactions between natural selection and environmental change are well recognized and sit at the core of ecology and evolutionary biology. Reciprocal interactions between ecology and evolution, eco-evolutionary feedbacks, ... -
Ecosystem change and human health: implementation economics and policy.
(Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2017-06)Several recent initiatives such as Planetary Health, EcoHealth and One Health claim that human health depends on flourishing natural ecosystems. However, little has been said about the operational and implementation challenges ... -
Effects of land use, habitat characteristics, and small mammal community composition on Leptospira prevalence in northeast Madagascar.
(PLoS neglected tropical diseases, 2020-12-31)Human activities can increase or decrease risks of acquiring a zoonotic disease, notably by affecting the composition and abundance of hosts. This study investigated the links between land use and infectious disease risk ... -
Elevational Ranges of Montane Birds and Deforestation in the Western Andes of Colombia.
(PloS one, 2015-01)Deforestation causes habitat loss, fragmentation, degradation, and can ultimately cause extinction of the remnant species. Tropical montane birds face these threats with the added natural vulnerability of narrower elevational ... -
Emerging Technologies to Conserve Biodiversity.
(Trends in ecology & evolution, 2015-11)Technologies to identify individual animals, follow their movements, identify and locate animal and plant species, and assess the status of their habitats remotely have become better, faster, and cheaper as threats to the ...
