- Wiley Online Library
... thawing and glacier retreat. Our review suggested that warming enhanced net primary production and soil respiration, decreased methane (CH4) emissions from wetlands and increased CH4 consumption of meadows, but might increase CH4 emissions from lakes. Warming-induced permafrost thawing and glaciers ...
... thawing and glacier retreat. Our review suggested that warming enhanced net primary production and soil respiration, decreased methane (CH4) emissions from wetlands and increased CH4 consumption of meadows, but might increase CH4 emissions from lakes. Warming-induced permafrost thawing and glaciers ...
climate change effects on grassland
... Grasslands around the globe occur in climates with high light intensity, warm temperatures, and at least one annual dry season.18 In the United States, grasslands are the largest natural biome, covering more than 125 million hectares of land.19 North American grasslands contain approximately 7500 pl ...
... Grasslands around the globe occur in climates with high light intensity, warm temperatures, and at least one annual dry season.18 In the United States, grasslands are the largest natural biome, covering more than 125 million hectares of land.19 North American grasslands contain approximately 7500 pl ...
PDF
... and ATEAM offer a long-term projection with a reasonable level of detail. In SEAMLESS, climate change scenarios are intended to be implemented at a later stage. Most of the current impact studies predict rather small impacts of climate change in Germany over the next 10-20 years, and some studies pr ...
... and ATEAM offer a long-term projection with a reasonable level of detail. In SEAMLESS, climate change scenarios are intended to be implemented at a later stage. Most of the current impact studies predict rather small impacts of climate change in Germany over the next 10-20 years, and some studies pr ...
Curriculum Vitae
... Forum Newsletter, January 2007. Proud to be an environmentalist (with CH Segall and BB Grant). Letter, The New York Times, 15 March 2005. ...
... Forum Newsletter, January 2007. Proud to be an environmentalist (with CH Segall and BB Grant). Letter, The New York Times, 15 March 2005. ...
national park service cave ecology inventory and monitoring
... by email and teleconference over the past five years. Cave biological and ecological monitoring and inventory is a huge topic with great variety across the units of the National Park System. It may include studies on roots in lava tubes at Hawaii Volcanoes National Park, bats in talus caves at Pinna ...
... by email and teleconference over the past five years. Cave biological and ecological monitoring and inventory is a huge topic with great variety across the units of the National Park System. It may include studies on roots in lava tubes at Hawaii Volcanoes National Park, bats in talus caves at Pinna ...
Science Plan for COAT: Climate-Ecological Observatory for Arctic
... and is one of the earth’s largest terrestrial biomes. Owing to its remoteness, the arctic tundra still harbors vast stretches of pristine wilderness with intact ecosystem functions and endemic biodiversity of great fundamental and societal significance. Yet the arctic tundra is predicted to become m ...
... and is one of the earth’s largest terrestrial biomes. Owing to its remoteness, the arctic tundra still harbors vast stretches of pristine wilderness with intact ecosystem functions and endemic biodiversity of great fundamental and societal significance. Yet the arctic tundra is predicted to become m ...
PRELIMINARY CONSERVATION ASSESSMENT of the
... enables the environment to be used productively by a variety of animal species eating different plant species. This appears to include shared but non-competitive winter use of the Wet and Dry meadow/shrubfield complexes by wild horses (grazers) and moose (browsers). The isolation from human encroach ...
... enables the environment to be used productively by a variety of animal species eating different plant species. This appears to include shared but non-competitive winter use of the Wet and Dry meadow/shrubfield complexes by wild horses (grazers) and moose (browsers). The isolation from human encroach ...
Great Lakes National Parks in Peril
... much the climate changes will depend in large part on whether future emissions are limited. In every case, the scenario with higher emissions yields greater temperature increases than the scenario with lower emissions. At Indiana Dunes, for example, the average result from 16 climate models is for a ...
... much the climate changes will depend in large part on whether future emissions are limited. In every case, the scenario with higher emissions yields greater temperature increases than the scenario with lower emissions. At Indiana Dunes, for example, the average result from 16 climate models is for a ...
The plateau pika (Ochotona curzoniae) is a keystone species for
... primary plant productivity, aid in the formation, aeration and mixing of soil, and enhance infiltration of water into the soil (Grinnell, 1923; Whicker & Detling, 1988; Huntly & Reichman, 1994; Hoogland, 1995; Kotliar et al., 1999). Jiang & Xia (1985, 1987) determined that the foraging of small and ...
... primary plant productivity, aid in the formation, aeration and mixing of soil, and enhance infiltration of water into the soil (Grinnell, 1923; Whicker & Detling, 1988; Huntly & Reichman, 1994; Hoogland, 1995; Kotliar et al., 1999). Jiang & Xia (1985, 1987) determined that the foraging of small and ...
Bio-Diversity, Extinction, and Incentives to Save/Exterminate Species
... Describe examples of the different viewpoints local people may have about land use issues. Stress that the intent is not to be judgmental, but rather to recognize that there are usually several different perspectives for every issue. • Have students examine the pros and cons of the proposals from th ...
... Describe examples of the different viewpoints local people may have about land use issues. Stress that the intent is not to be judgmental, but rather to recognize that there are usually several different perspectives for every issue. • Have students examine the pros and cons of the proposals from th ...
Trophic facilitation by introduced top predators: grey wolf subsidies
... been shown to exhibit higher growth rates in near river habitats where aquatic insect densities are high (Sabo & Power 2002). While such resource flows from high productivity to low productivity habitats have been well documented (Fagan, Cantrell & Cosner 1999), little is understood about the possib ...
... been shown to exhibit higher growth rates in near river habitats where aquatic insect densities are high (Sabo & Power 2002). While such resource flows from high productivity to low productivity habitats have been well documented (Fagan, Cantrell & Cosner 1999), little is understood about the possib ...
Retention Time and the Functional Response of Beavers J. M.
... ter was provided ad libitu~nat all times. Beavers were tlmc Subsequent obrervations ver~fiedthat beavers u5uheld in the cages for no more than 9 weeks. ally cut saphngs and dragged them to the pond befoie Retention times and ad libitum intake rates were re- conwmtng them, as the) commonly do In natu ...
... ter was provided ad libitu~nat all times. Beavers were tlmc Subsequent obrervations ver~fiedthat beavers u5uheld in the cages for no more than 9 weeks. ally cut saphngs and dragged them to the pond befoie Retention times and ad libitum intake rates were re- conwmtng them, as the) commonly do In natu ...
Technical Series #02: Adaptive Experimental
... established for the first time, the presence of the Southern Brown Bandicoot and the Longnosed Potoroo at Coopracambra National Park, and confirmed the presence of the Little Pygmy Possum at the Little Desert National Park, which is an extension of the known range for the species. Results from the f ...
... established for the first time, the presence of the Southern Brown Bandicoot and the Longnosed Potoroo at Coopracambra National Park, and confirmed the presence of the Little Pygmy Possum at the Little Desert National Park, which is an extension of the known range for the species. Results from the f ...
The ecology and evolution of seaweed
... might not significantly decrease herbivory on seaweeds in this habitat; however, recent events have shown that removal of both groups allows seaweeds to escape control by herbivores, sometimes killing entire reef systems. Hughes (1994) provides impressive documentation of how overfishing of reefs in ...
... might not significantly decrease herbivory on seaweeds in this habitat; however, recent events have shown that removal of both groups allows seaweeds to escape control by herbivores, sometimes killing entire reef systems. Hughes (1994) provides impressive documentation of how overfishing of reefs in ...
Te Urewera National Park Management Plan
... Appendix 2 for the scientific equivalents of common names used throughout the text). Lowland forest covers most of the catchments of the Whakatane, Waimana and Rangitaiki Rivers with smaller areas in the Waioeka, Ruakituri, Waiau and Waikaremoana catchments. The main forest type is rimu-northern rat ...
... Appendix 2 for the scientific equivalents of common names used throughout the text). Lowland forest covers most of the catchments of the Whakatane, Waimana and Rangitaiki Rivers with smaller areas in the Waioeka, Ruakituri, Waiau and Waikaremoana catchments. The main forest type is rimu-northern rat ...
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... to standardize leaf size. Leaf fragments were dried at 60 °C for 24 h to reduce water content. Each litter bag was filled with 2 g of dried leaf material and then sewn closed. A pair of litter bags of each mesh size was pinned 1 m apart on the soil surface at each of 10 locations in every field. Fiv ...
... to standardize leaf size. Leaf fragments were dried at 60 °C for 24 h to reduce water content. Each litter bag was filled with 2 g of dried leaf material and then sewn closed. A pair of litter bags of each mesh size was pinned 1 m apart on the soil surface at each of 10 locations in every field. Fiv ...
James Eldridge BC Fossorial Native Mammals
... area is grazed intermittently by cattle at relatively low stocking rates. However, there has been no cattle grazing in the Outside paddock since the reserve was established, though it is still grazed by rabbits and contains goannas. The three paddocks were therefore relatively similar in their veget ...
... area is grazed intermittently by cattle at relatively low stocking rates. However, there has been no cattle grazing in the Outside paddock since the reserve was established, though it is still grazed by rabbits and contains goannas. The three paddocks were therefore relatively similar in their veget ...
NDVI-based increase in growth of temperate grasslands and its
... was assigned as the monthly value in an effort to further reduce residual atmospheric and bidirectional effects. NDVI images of spring (April and May), summer (June–August), fall (September and October), and growing season (April–October) were generated separately through computed averages of respec ...
... was assigned as the monthly value in an effort to further reduce residual atmospheric and bidirectional effects. NDVI images of spring (April and May), summer (June–August), fall (September and October), and growing season (April–October) were generated separately through computed averages of respec ...
The International Tundra Experiment
... Results from ITEX research has been in the forefront of predictions of effects of warming on tundra systems, and in verifying the predictions as the climate warms. One of the main objectives of ITEX was to use a simple warming experiment to determine effects on tundra plants and vegetation that woul ...
... Results from ITEX research has been in the forefront of predictions of effects of warming on tundra systems, and in verifying the predictions as the climate warms. One of the main objectives of ITEX was to use a simple warming experiment to determine effects on tundra plants and vegetation that woul ...
Ranger training-1
... A range of institutional challenges surrounding a protected area in Sabah today threatens its integrity and conservation of biodiversity or ecosystems within. Involving the local communities, other government agencies, business and industrial communities in protected area management is recognized as ...
... A range of institutional challenges surrounding a protected area in Sabah today threatens its integrity and conservation of biodiversity or ecosystems within. Involving the local communities, other government agencies, business and industrial communities in protected area management is recognized as ...
Climate Change in Park City: An Assessment of Climate, Snowpack
... Climate change caused by greenhouse gases (GHGs) has long been a concern of snow-dependent industries, as changes in snow and ice are predicted to be some of the first effects of a warming climate (Barry et al., 2007; Lemke et al., 2007; Armstrong and Brun, 2008). Changes to snowpack can impact a ra ...
... Climate change caused by greenhouse gases (GHGs) has long been a concern of snow-dependent industries, as changes in snow and ice are predicted to be some of the first effects of a warming climate (Barry et al., 2007; Lemke et al., 2007; Armstrong and Brun, 2008). Changes to snowpack can impact a ra ...
A brown-world cascade in the dung decomposer food web of an
... documented negative effects of predator diversity on top-down control are often attributed to intraguild predation, facultative hyperparasitism, or behavioral interference (Duffy et al. 2007, Rosenheim 2007, Bruno and Cardinale 2008, Letourneau et al. 2009). Such positive and negative effects are po ...
... documented negative effects of predator diversity on top-down control are often attributed to intraguild predation, facultative hyperparasitism, or behavioral interference (Duffy et al. 2007, Rosenheim 2007, Bruno and Cardinale 2008, Letourneau et al. 2009). Such positive and negative effects are po ...
Grasslands - UC Davis Plant Sciences
... 22, “Coastal Sage Scrub,” and 24, “Chaparral”) and deserts (Chapter 30, “Deserts”). California’s grasslands experience a Mediterranean climate with a mismatch in the timing of ideal temperature versus moisture conditions for plant growth (Figure 23.3). Moisture limits plant growth in the hot and dry ...
... 22, “Coastal Sage Scrub,” and 24, “Chaparral”) and deserts (Chapter 30, “Deserts”). California’s grasslands experience a Mediterranean climate with a mismatch in the timing of ideal temperature versus moisture conditions for plant growth (Figure 23.3). Moisture limits plant growth in the hot and dry ...
Ecosystem engineering, experiment, and evolution
... all organisms modify their environments, a process that we call ‘niche construction’ but is elsewhere described as ‘ecosystem engineering’’’ (Laland et al. 1999, 10242; cf. Odling-Smee et al. 2003, 6). To complicate matters further, both groups also modified their respective definitions in the 2000s ...
... all organisms modify their environments, a process that we call ‘niche construction’ but is elsewhere described as ‘ecosystem engineering’’’ (Laland et al. 1999, 10242; cf. Odling-Smee et al. 2003, 6). To complicate matters further, both groups also modified their respective definitions in the 2000s ...
Alberta`s Natural Subregions Under a Changing Climate
... tree species, and in some areas there was an increase in the proportion of pine, together with an increase in the rate of fire. The water table decreased, but lakes did not become ...
... tree species, and in some areas there was an increase in the proportion of pine, together with an increase in the rate of fire. The water table decreased, but lakes did not become ...
Pleistocene Park
Pleistocene Park (Russian: Плейстоценовый парк) is a nature reserve on the Kolyma River south of Chersky in the Sakha Republic, Russia, in northeastern Siberia, where an attempt is being made to recreate the northern subarctic steppe grassland ecosystem that flourished in the area during the last glacial period.The project is being led by Russian researcher Sergey Zimov, with hopes to back the hypothesis that overhunting, and not climate change, was primarily responsible for the extinction of wildlife and the disappearance of the grasslands at the end of the Pleistocene epoch.A further aim is to research the climatic effects of the expected changes in the ecosystem. Here the hypothesis is that the change from tundra to grassland will result in a raised ratio of energy emission to energy absorption of the area, leading to less thawing of permafrost and thereby less emission of greenhouse gases.To study this, large herbivores have been released, and their effect on the local fauna is being monitored. Preliminary results point at the ecologically low-grade tundra biome being converted into a productive grassland biome, and at the energy emission of the area being raised.A documentary is being produced about the park by an American journalist and filmmaker.