نتایج جستجو برای: conservation and restoration

تعداد نتایج: 16850594  

Objective: Ecosystems with mixed species compared to the ones with pure compositions provide a broader range of options in the fields of biodiversity, conservation, protection and restoration. Nearly all forest plantations are established as monocultures, but research has shown that there are potential advantages to be gained by using carefully designed species mixtures in place of monocultures...

1997
N. LeRoy David Allan Mark B. Bain James R. Karr Karen L. Prestegaard

769 Humans have long been fascinated by the dynamism of free-flowing waters. Yet we have expended great effort to tame rivers for transportation, water supply, flood control, agriculture, and power generation. It is now recognized that harnessing of streams and rivers comes at great cost: Many rivers no longer support socially valued native species or sustain healthy ecosystems that provide imp...

Journal: :Trends in ecology & evolution 2009
Richard J Hobbs Eric Higgs James A Harris

Many ecosystems are rapidly being transformed into new, non-historical configurations owing to a variety of local and global changes. We discuss how new systems can arise in the face of primarily biotic change (extinction and/or invasion), primarily abiotic change (e.g. land use or climate change) and a combination of both. Some changes will result in hybrid systems retaining some original char...

2008
Stephen R. Carpenter Kathryn L. Cottingham

Lake water quality and ecosystem services are normally maintained by several feedbacks. Among these are nutrient retention and humic production by wetlands, nutrient retention and woody habitat production by riparian forests, food web structures that cha nnel phosphorus to consumers rather than phytoplankton, and biogeochemical mechanisms that inhibit phosphorus recycling from sediments. In deg...

Journal: :Annals of the New York Academy of Sciences 2010
Rachael Winfree

Bees pollinate most of the world's wild plant species and provide economically valuable pollination services to crops; yet knowledge of bee conservation biology lags far behind other taxa such as vertebrates and plants. There are few long-term data on bee populations, which makes their conservation status difficult to assess. The best-studied groups are the genus Bombus (the bumble bees), and b...

2007
Luiz Amorim Claudia Loureiro Cristiano Nascimento

It is argued that there is a disjunction between conservation and modern architectural theories with regards to the concept of space. The argument is developed through a case study, the Casa de Detenção do Recife, a XIX Century listed penitentiary, whose restoration demonstrates how subtle spatial changes can alter building’s properties. The paper concludes by proposing a new approach to archit...

2005
Justin C. Williams Stephanie A. Snyder

Landscape fragmentation and habitat loss are significant threats to the conservation of biological diversity. Creating and restoring corridors between isolated habitat patches can help mitigate or reverse the impacts of fragmentation. It is important that restoration and protection efforts be undertaken in the most efficient and effective way possible because conservation budgets are often seve...

2015
Phillip J. Blaen Li Jia Kelvin S.-H. Peh Rob H. Field Andrew Balmford Michael A. MacDonald Richard B. Bradbury

Despite growing recognition that mineral sites restored for nature conservation can enhance local biodiversity, the wider societal benefits provided by this type of restoration relative to alternative options are not well understood. This study addresses this research gap by quantifying differences in ecosystem services provision under two common mineral site after-uses: nature conservation and...

2016
Avigdor Abelson Benjamin S. Halpern Daniel C. Reed Robert J. Orth Gary A. Kendrick Michael W. Beck Jonathan Belmaker Gesche Krause Graham J. Edgar Laura Airoldi Eran Brokovich Robert France Nadav Shashar Arianne de Blaeij Noga Stambler Pierre Salameh Mordechai Shechter Peter A. Nelson

Conservation and environmental management are principal countermeasures to the degradation of marine ecosystems and their services. However, in many cases, current practices are insufficient to reverse ecosystem declines. We suggest that restoration ecology, the science underlying the concepts and tools needed to restore ecosystems, must be recognized as an integral element for marine conservat...

2004
I A E Atkinson

Ecological restoration is defined as active intervention and management to restore biotic communities that were formerly present at a particular place and time. Examples are given from both New Zealand and overseas of a variety of different restoration projects. The possibility is raised of replacing some animal species extinct in New Zealand with related living forms from other countries. The ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید