نتایج جستجو برای: 2012 agricultural lands as ecological traps for grizzly bears animal conservation 15

تعداد نتایج: 12041691  

2008
Anurag Mishra Brian L. Benham Saied Mostaghimi

A plot scale study was conducted to determine bacterial transport in runoff from cropland treated with poultry litter and dairy manure applied at phosphorus (P) agronomic rates. Treatments included surface application of dairy manure, surface application of poultry litter, incorporation of dairy manure and control. A rainfall simulator was used to induce runoff 1 and 2 days after manure applica...

Journal: :Biology letters 2006
Cristina Valdiosera Nuria García Love Dalén Colin Smith Ralf-Dietrich Kahlke Kerstin Lidén Anders Angerbjörn Juan Luis Arsuaga Anders Götherström

In this study, we have used a technique designed to target short fragments containing informative mitochondrial substitutions to extend the temporal limits of DNA recovery and study the molecular phylogeny of Ursus deningeri. We present a cladistic analysis using DNA recovered from 400 kyr old U. deningeri remains, which demonstrates U. deningeri's relation to Ursus spelaeus. This study extends...

2016
Núria Fandos Esteruelas Jonas Malmsten Caroline Bröjer Giulio Grandi Anders Lindström Paul Brown Jon E. Swenson Alina L. Evans Jon M. Arnemo

In April 2014 and 2015, we noted localized alopecia (neck, forelimbs, and chest) and hyperpigmentation on two adult brown bears (Ursus arctos) captured in central-south Sweden for ecological studies under the Scandinavian Brown Bear Research Project. In spring 2015, a brown bear was shot because of human-wildlife conflict in the same region. This bear also had extensive alopecia and hyperpigmen...

2011
P. Jeyakumar

Conservation agriculture (CA) integrates ecological management with scientific agricultural production. CA promotes minimal disturbance of the soil by tillage (zero tillage), balanced application of chemical inputs (only as required for improved soil quality and healthy crop and animal production), and careful management of residues and wastes. CA Promotes application of fertilizers, pesticides...

Journal: :Proceedings. Biological sciences 2016
Robin Hale Stephen E Swearer

Ecological traps, which occur when animals mistakenly prefer habitats where their fitness is lower than in other available habitats following rapid environmental change, have important conservation and management implications. Empirical research has focused largely on assessing the behavioural effects of traps, by studying a small number of geographically close habitat patches. Traps, however, ...

Journal: :journal of arthropod-borne diseases 0
marzieh hesam-mohammadi department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. yavar rassi department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. mohammad reza abai department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. amir ahmad akhavan department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. fatemeh karimi department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. sina rafizadeh ministry of health and medical education, tehran, iran.

b a ckground: the aim of the study was to evaluate and compare the efficiency and practicality of seven trappingmethods for adult phlebotominae sand flies. the results of this investigation provide information to determine the species composition and nocturnal activity pattern of different sand fly species. m e t hods: the study was carried out in both plain region (about 5km far from northeast...

2001
Jeannette Espinoza Subhrendu Pattanayak Erin Sills

We illustrate a strategy for valuation of forest ecosystem services by studying the demand for its weak complement, agricultural labor –a commodity that has market prices. In our case study forest protection in Ruteng Park of Flores, Indonesia, provides soil conservation benefits to farmers living near the protected area. Econometric analyses of forest hydrology and household data shows that so...

2009
Vance Russell Chris Rose Miles DaPrato

Approximately 70 percent of the contiguous United States is in private lands with half of this total in row crop or rangelands. Audubon California’s Landowner Stewardship Program engages with farmers and ranchers on conservation and restoration projects in a manner compatible with existing agricultural operations. To assess the success of these efforts, Audubon, University of California, Davis,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

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