نتایج جستجو برای: ecological conditions

تعداد نتایج: 935412  

2009
Niki Frantzeskaki Wil Thissen

Social-ecological systems’ dynamics challenge institutions and their functions. For a socio-ecological system to be sustainable, a balanced interdependence of societal and ecological systems is vital. Provided the diversity of social-ecological system contexts, different institutional functions are required for sustaining the balanced interdependence of a social-ecological system. In our paper,...

2015
Emma Wiik Helen Bennion Carl D. Sayer Thomas A. Davidson Stewart J. Clarke Suzanne McGowan Stephen Prentice Gavin L. Simpson Laura Stone

Citation: Wiik E, Bennion H, Sayer CD, Davidson TA, Clarke SJ, McGowan S, Prentice S, Simpson GL and Stone L (2015) The coming and going of a marl lake: multi-indicator palaeolimnology reveals abrupt ecological change and alternative views of reference conditions. Front. Ecol. Evol. 3:82. doi: 10.3389/fevo.2015.00082 The coming and going of a marl lake: multi-indicator palaeolimnology reveals a...

Journal: :پژوهش های انسان شناسی ایران 0
وحید عسکرپور استادیار گروه باستان شناسی دانشکده هنرهای کاربردی دانشگاه هنر اسلامی تبریز آرش تیرانداز کارشناسی ارشد باستان شناسی، دانشگاه آزاد اسلامی واحد تهران مرکز بهرام آجورلو دانشیار گروه باستان شناسی دانشکده هنرهای کاربردی دانشگاه هنر اسلامی تبریز

the paper is concerning preliminary survey of qaradaq region of eastern azerbaijan in view of ecological, archaeological and ethnographic perspectives. the region under study is poor in fertile soil, underpopulated settlements and nomadic ubas being its dominant landscape. indeed, archaeological investigations show the lack of considerable archaeological records up to the iron age. the main sub...

2016
Adrian V. Jaeggi Klaree J. Boose Frances J. White Michael Gurven

Our closest living relatives, bonobos and chimpanzees, along with small-scale human societies figure prominently in debates about human nature. Here we emphasize and explain behavioural variation within and among these three species. In the logic of behavioural ecology, individuals have been selected to adjust their behaviour along evolved reaction norms that maximize fitness given current soci...

Journal: :Trends in ecology & evolution 2008
Heinz-Ulrich Reyer

The evolutionary importance of interspecific hybridisation has been a controversial issue for quite some time. Some view mating between different species as a maladaptive process; others stress the adaptive value of choosing heterospecific mates under ecological conditions that favour hybrids. A recent paper by Pfennig is the first study to make a priori predictions of how adaptive choice betwe...

2013
Reza Basiri

A combination of field and tabular methods and multivariate analyses were used to develop groups of herb layer species (i.e., ecological species groups) that describe and characterize ecosystems dominated by oak in West Azerbaijan, Iran. Six such ecological species groups were created using 117 woody and herbaceous species sampled in 76 plots within a 320 ha region. We developed ecological spec...

2009
John Eid

www.sciencemag.org (this information is current as of February 2, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/323/5910/133 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/1162986/DC1 can be found at:...

Journal: :IOP Conference Series: Earth and Environmental Science 2019

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