disturbance

disturbance is a head of claim for compensation for losses resulting from the taking of land, other than the taking of the land itself, or the associated effects of the taking on land retained.

Journal Articles & Books
December 2013

Although human-related disturbance is usually detrimental for biodiversity, in some instances it can simulate natural processes and benefit certain species. Changes in the disturbance regime, both natural and human-driven, can affect species that rely on it. The Apennine yellow-bellied toad Bombina variegata pachypus, an amphibian endemic to peninsular Italy, has declined throughout its range in the last 3 decades. We sought to identify the drivers of the decline in the region of Liguria, at the north-western limit of its distribution.

Journal Articles & Books
December 2010

Feedbacks between climate warming and fire have the potential to alter Arctic and sub-Arctic vegetation. In this paper we assess the effects and interactions of temperature and wildfire on plant communities across the transition between the Arctic and sub-Arctic. Mackenzie Delta region, Northwest Territories, Canada. We sampled air temperatures, green alder (Alnus viridis ssp. fruticosa) cover, growth, reproduction and age distributions, and overall plant community composition on burned and unburned sites across a latitudinal gradient.

Journal Articles & Books
December 2008

1. A spatially-extensive data set of stream macroinvertebrate communities from 49 northern New Zealand sites sampled over a 10-year period was analysed to assess relationships between the environment (catchment land-cover, landscape position and regional-scale weather patterns), and (i) community persistence and stability based on the constancy of species occurrence (presence-absence) and abundance (per cent composition), respectively and (ii) the temporal variability of various community condition metrics. 2.

Journal Articles & Books
December 2013

Relating population density to spatially explicit habitat characteristics can inform management by directing efforts to areas with lower densities or focusing conservation and land protection on high-density areas. We conducted point-transect surveys for the endangered Golden-cheeked Warbler (Setophaga chrysoparia) and Black-capped Vireo (Vireo atricapilla) in the live-fire region of Fort Hood, Texas. We used mark—recapture distance sampling and combined a Horvitz-Thompson estimator with a habitat-based, resourceselection gradient to estimate spatially explicit density for both species.

Journal Articles & Books
December 2010

The Top End region of the Northern Territory, Australia, is noted for its relatively unmodified natural state. To gain some insight into the potential for maintaining ecosystem health in this region we undertook a study that assessed the distribution of weeds across very extensive transects. This weed survey was distinct from other studies in that many of the sample sites were distant from tracks or other infrastructure. Twenty-one weed species were recorded along 2000 km of transects. Weeds were reported from 18.7% of the 718 sample points.

Journal Articles & Books
December 2012

Chinese and European privets are among the most aggressive invasive shrubs in forestlands of the southern United States. We analyzed extensive field data collected by the U.S. Forest Service covering 12 states to identify potential determinants of invasion and to predict likelihood of further invasion under a variety of possible management strategies.

Peer-reviewed publication
March 2015

Canadian forests are often perceived as pristine and among the last remaining wilderness, but the majority of them are officially managed and undergo direct land use, mostly for wood harvest. This land use has modified their functions and properties, often inadvertently (e.g., age structure) but sometimes purposefully (e.g., fire suppression). Based on a review of the literature pertaining to carbon cycling, climate regulation, and disturbances from logging, fire, and insect outbreaks, we propose five scientific principles relevant for Canadian managed forests.

Peer-reviewed publication
October 2016

Few land disturbances impact watersheds at the scale and extent of mountaintop removal mining (MTM). This practice removes forests, soils and bedrock to gain access to underground coal that results in likely permanent and wholesale changes that impact catchment hydrology, geochemistry and ecosystem health. MTM is the dominant driver of land cover changes in the central Appalachian Mountains region of the United States, converting forests to mine lands and burying headwater streams.

13 June 2017
Brazil

O empreendimento de R$ 1,5 bilhão pode alterar a vida de comunidades indígenas, algumas delas sem contato com o homem branco; obra está paralisada

21 April 2017
Brazil

Grupo encapuzado invadiu assentamento em Colniza nesta quinta-feira (20). A suspeita é de que os autores do crime sejam capangas de fazendeiros da região.

Pelo menos 7 pessoas foram assassinadas nesta quinta-feira (20) em um conflito por terras em um assentamento no município de Colniza, a 1.065 km de Cuiabá. De acordo com a Secretaria Estadual de Segurança Pública (Sesp-MT), um grupo encapuzado invadiu a área e teria assassinado adultos, idosos e crianças. Equipes da Polícia Militar e da Polícia Civil se deslocaram para o assentamento.