منابع مشابه
The Effect of Isolation on the Number of Woodland Birds in Small Woods in the Netherlands
The effect of isolation of forest habitat islands on the number of breeding woodland birds was studied in thirty-six woodlots, varying in size and differing in degree of isolation. Various isolation variables were calculated. Multiple regression analysis showed that, apart from patch area, the amount of woodland near the forest island and the distance t o an extensive forest area have significa...
متن کاملreflections on taught courses of the iranian ma program in english translation: a mixed-methods study
the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...
Birds of Many Feathers: The Formation and Structure of Mixed- Species Flocks of Forest Birds
Considering the differences in the social and ecological requirements of the different participants, the cohesive movement of animal groups is an amazing phenomenon. Associations composed of many species, each with its own intraspecific social organization and species-specific requirements, seem even more improbable. Yet mixed-species fish schools (Ehrlich and Ehrlich 1973; Alevizon 1976), ungi...
متن کاملTemporal Dynamics of Neotropical Birds with Special Reference to Frugivores in Second-growth Woods
-Birds were mist-netted and banded in a second-growth woodland in central Panama to examine temporal dynamics of capture rates and to examine if these dynamics reflected presence or absence of transient birds. Capture rates of fmgivores fluctuated much more than insectivores; nectarivores were intermediate in their fluctuations. Consequently, insectivores were recaptured more frequently than fr...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1953
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay1491