نتایج جستجو برای: landscape maintenance

تعداد نتایج: 212947  

2007
Michael Kleyer Robert Biedermann Klaus Henle Elisabeth Obermaier Hans-Joachim Poethke Peter Poschlod Boris Schröder Josef Settele Doris Vetterlein

Landscape Ecology Group, University of Oldenburg, D-26111 Oldenburg, Germany Institute of Geoecology, University of Potsdam, D-14415 Potsdam, Germany Helmholtz Centre for Environmental Research – UFZ, Department of Conservation Biology, Permoserstr. 15, 04318 Leipzig, Germany Field Station Fabrikschleichach, University of Würzburg, Glashuettenstrasse 5, 96181 Rauhenebrach, Germany Institute of ...

ژورنال: علوم آب و خاک 2009
راهداری, وحید, سفیانیان, علیرضا, ملکی نجف ابادی, سعیده,

Landscape ecology as a modern interdisciplinary science offers new concepts, theories, and methods for land evaluation and management. One main part of landscape ecology is describing patterns in the landscape and interpreting the ecological effects of these patterns on flora, fauna, flow of energy and materials. Landscape studies require methods to identify and quantify spatial patterns of lan...

2012
T. Gangopadhyay

Popcorn fractals are instances of Integrated Fractal Systems involving trigonometric functions. In this paper, we study the effect of spherical, swirl and pseudo-horseshoe functions on popcorn fractals to produce talismanic and tantric designs. General Terms Fractal, Algorithm, Turbo C++, Program.

Journal: :international journal of environmental research 0

landscape fragmentation has threatened the landscape continuity of ray which was maintainedfrom prehistoric times until recent decades. from 19th century that tehran sprawl growth affected ray’slandscape as a satellite city of tehran, ray experienced rapid landscape fragmentation and underwent manychanges. in order to cope with the threat, the process of changes from landscape fragmentation sho...

2017
Geanne Carla Novais Pereira Marcel Serra Coelho Marina do Vale Beirão Rodrigo Fagundes Braga Geraldo Wilson Fernandes

We provide the first description of the effects of local vegetation and landscape structure on the fruit-feeding butterfly community of a natural archipelago of montane rainforest islands in the Serra do Espinhaço, southeastern Brazil. Butterflies were collected with bait traps in eleven forest islands through both dry and rainy seasons for two consecutive years. The influence of local and land...

2013
James B. Heffernan Danielle L. Watts Matthew J. Cohen

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, flow-parallel orientation of high-elevation sawgrass ridges and low-elevation sloughs that has degraded due to hydrologic modification. In this study, we use a meta-ecosy...

2016
Caiyao Xu Lijie Pu Ming Zhu Jianguo Li Xinjian Chen Xiaohan Wang Xuefeng Xie

Urbanization, and the resulting land use/cover change, is a primary cause of the degradation of coastal wetland ecosystems. Reclamation projects are seen as a way to strike a balance between socioeconomic development and maintenance of coastal ecosystems. Our aim was to understand the ecological changes to Jiangsu’s coastal wetland resulting from land use change since 1977 by using remote sensi...

1998
Glen D. Johnson Ganapati P. Patil

Landscape ecology is a field that has grown from realizing that maintenance of ecological resources requires management at several spatial and temporal scales, including landscape-level ecosystems as whole units of study and management (Forman, 1995; Grumbine, 1994; Noss, 1983 and 1996). The subsequent need for characterizing landscape structure has led to a variety of measurements for assessin...

2010
Adrien Rusch Muriel Valantin-Morison Jean-Pierre Sarthou

There is a growing body of evidence to suggest that the simplification of land uses associated with a strong dependence on agrochemical inputs is decreasing environmental quality, threatening biodiversity, and increasing the likelihood of pest outbreaks. The development of farming systems with greater reliance on ecosystem services, such as biological control of insect pests, should increase th...

2006
M. Wilmking J. Harden K. Tape

1. Lamont Doherty Earth Observatory, Palisades, New York 10964, U.S.A., [email protected] 2. U.S. Geological Survey, Menlo Park, CA 94025, U.S.A., [email protected] 3. University of Alaska Fairbanks, Fairbanks, AK 99775, U.S.A., [email protected] 4. Present address: Institute for Botany and Landscape Ecology, University Greifswald, Grimmer Strasse 88, Greifswald 17487, Germany, wilmking@uni-greifsw...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید