نتایج جستجو برای: ecological groups

تعداد نتایج: 822297  

Journal: : 2022

The expert and statistical assessment of ecological coenotic groups Southern Trans-Urals vascular plants flora has been done for A.L. Belgards coenomorphs scheme temperate forest zone European Russia. Both suggested schemes give adequate similar biotopes. proposed are identified in phytometer scales space definitely can be used regional best region is realized by combined group approach at the ...

2011
STEPHANIE E. HAMPTON

Scientific synthesis has transformed ecological research and presents opportunities for advancements across the sciences; to date, however, little is known about the antecedents of success in synthesis. Building on findings from 10 years of detailed research on social interactions in synthesis groups at the National Center for Ecological Analysis and Synthesis, we demonstrated with large-scale ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده ادبیات 1391

this study investigated the effects of three kinds of gloss conditions, that is traditional non-call marginal gloss, audio gloss, and extended audio gloss, on reading comprehension and vocabulary gain of iranian upper- intermediate efl learners. to this end, three experimental and one control groups, each comprising 15 participants, took part in the current study. in order to ensure that the pa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎this study investigated the effect of prior knowledge on the listening comprehension performance of fl learners. twenty students, male and female, drawn from the two intact groups of the senior and junior english language and literature majors were chosen as the participants of this study . the two groups were then randomly assigned into the experimental and control group. the experimental gr...

Journal: :مرتع و آبخیزداری 0
حسین آذرنیوند مینا ربیعی حسین ارزانی یونس عصری

with respect to wide distribution of a. sieberi besser in iran, various studies have been done on its habitats and different ecological properties have been referred as effective factors in establishment of this species. in this research, we tried to study the ecological range of a. sieberi and its relationship with vegetative characteristics. therefore, climate properties including annual prec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده ادبیات و علوم انسانی 1391

abstractof two mcall programs introducing 100 vocabulary items through two im the researcher of the present study was intrigued to compare the effects age modalities (pictures and streaming video) with those of a conventional method (teacher instruction) in an efl context. she set out to investigate whether such multimedia environments could provide a more effective environment for vocabulary...

Journal: :Proceedings. Biological sciences 2016
Santiago Ramírez-Barahona Josué Barrera-Redondo Luis E Eguiarte

Variation in species richness across regions and between different groups of organisms is a major feature of evolution. Several factors have been proposed to explain these differences, including heterogeneity in the rates of species diversification and the age of clades. It has been frequently assumed that rapid rates of diversification are coupled to high rates of ecological and morphological ...

Journal: :American journal of primatology 2004
Martha M Robbins Magdelena Bermejo Chloé Cipolletta Florence Magliocca Richard J Parnell Emma Stokes

Life-history traits and ecological conditions have an important influence on primate social systems. Most of what we know about the life-history patterns and social structure of gorillas comes from studies of eastern gorillas (Gorilla beringei sp.), which live under dramatically different ecological conditions compared to western gorillas (Gorilla gorilla sp.). In this paper we present new data...

2016
FABIO BENEDETTI STÉPHANE GASPARINI Roger Harris

We gathered information on the functional traits of the most representative copepod species in the Mediterranean Sea. Our database includes 191 species described by 7 traits encompassing diverse ecological functions: minimal and maximal body length, trophic group, feeding type, spawning strategy, diel vertical migration and vertical habitat. Cluster analysis in the functional trait space reveal...

2011
Christophe Boesch

An animal’s social life presents him with a constant yet varying series of challenges that they must solve daily if they want to survive and reproduce. An evolutionary approach to the evolution of social behavior and cognition predicts the convergent emergence of similar patterns and abilities in animal species facing similar challenges, as well as the emergence of a large diversity of behavior...

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