نتایج جستجو برای: burned and unburned gasses

تعداد نتایج: 16827955  

2015
Peter Koetsier Teresa R. B. Krause Quenton M. Tuckett

—We investigated the present effects from a 10-year-old wildfire on leaf litter breakdown rates in 3 headwater streams in central Idaho. These systems experienced a massive debris flow one year after the fire. Based on soil instability and burn patterns, we identified 3 stream conditions: unburned, burned only, and burned/scoured. We placed leaf bags containing willow leaves (Salix sp.) in each...

2014
Stephane Caut Michael J Jowers Xavier Arnan Jessica Pearce-Duvet Anselm Rodrigo Xim Cerda Raphaël R Boulay

Fire plays a key role in ecosystem dynamics worldwide, altering energy flows and species community structure and composition. However, the functional mechanisms underlying these effects are not well understood. Many ground-dwelling animal species can shelter themselves from exposure to heat and therefore rarely suffer direct mortality. However, fire-induced alterations to the environment may ch...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2014
J Oliveira-Costa C M D Lamego M S Couri C A Mello-Patiu

In the present contribution we compared the entomological succession pattern of a burned carcass with that of an unburned one. For that, we used domestic pig carcasses and focused on Calliphoridae, Muscidae and Sarcophagidae flies, because they are the ones most commonly used in Postmortem Interval estimates. Adult and immature flies were collected daily. A total of 27 species and 2,498 specime...

2010
Megan P. Burke Terri S. Hogue Marcia Ferreira Carolina B. Mendez Bridget Navarro Sonya Lopez Jennifer A. Jay

Mercury (Hg) stored in vegetation and soils is known to be released to the atmosphere during wildfires, increasing atmospheric stores and altering terrestrial budgets. Increased erosion and transport of sediments is well-documented in burned watersheds, both immediately post-fire and as the watershed recovers; however, understanding post-fire mobilization of soil Hg within burned watersheds rem...

2012
Jos Barlow Juliana M. Silveira Luiz A. M. Mestre Rafael B. Andrade Gabriela Camacho D'Andrea Julio Louzada Fernando Z. Vaz-de-Mello Izaya Numata Sébastien Lacau Mark A. Cochrane

Fire has become an increasingly important disturbance event in south-western Amazonia. We conducted the first assessment of the ecological impacts of these wildfires in 2008, sampling forest structure and biodiversity along twelve 500 m transects in the Chico Mendes Extractive Reserve, Acre, Brazil. Six transects were placed in unburned forests and six were in forests that burned during a serie...

2004
Carey P. Yeager Andrew J. Marshall Claudia M. Stickler Colin A. Chapman

The effects of the fires that burned over 4.7 million ha of Indonesia’s tropical forests during 1997 and 1998 are largely unknown. We assess the immediate impacts of these fires on five forest areas representing several different habitats in Kalimantan 1-2 months after the fires went out. Comparisons of transects in burned and unburned forest areas were conducted at three sites: Tanjung Puting ...

2002
MAC A. CALLAHAM MATT R. WHILES JOHN M. BLAIR

—In tallgrass prairie, cicadas emerge annually, are abundant and their emergence can be an important flux of energy and nutrients. However, factors influencing die distribution and abundance of these cicadas are virtually unknown. We examined cicada emergence in plots from a long-term (13 y) experimental manipulation involving common tallgrass prairie management practices. The plots were arrang...

2010
Juliana M. Silveira Jos Barlow Julio Louzada Paulo Moutinho

Fire is frequently used as a land management tool for cattle ranching and annual crops in the Amazon. However, these maintenance fires often escape into surrounding forests, with potentially severe impacts for forest biodiversity. We examined the effect of experimental fires on leaf-litter arthropod abundance in a seasonally-dry forest in the Brazilian Amazon. The study plots (50 ha each) inclu...

2013
Chad T. Hanson

The Pacific fisher (Martes pennanti) is a rare forest carnivore strongly associated with dense, old forest with high canopy cover for denning and resting. The Sierra Nevada population is very small, genetically distinct, and isolated. Mixed-severity wildland fire is assumed to be a potentially greater threat than logging, and land managers are conducting large-scale forest thinning operations u...

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