MOVEMENTS AND HOME RANGES OF MOUNTAIN PLOVERS RAISING BROODS IN THREE COLORADO LANDSCAPES
نویسندگان
چکیده
منابع مشابه
Estimated home ranges can misrepresent habitat relationships on patchy landscapes
Home ranges of animals are generally structured by the selective use of resource-bearing patches that comprise habitat. Based on this concept, home ranges of animals estimated from location data are commonly used to infer habitat relationships. Because home ranges estimated from animal locations are largely continuous in space, the resource-bearing patches selected by an animal from a fragmente...
متن کاملContext-dependent perceptual ranges and their relevance to animal movements in landscapes
1. An animal’s perceptual range defines the spatial extent of the landscape for which information is available to make movement decisions. Ecologists studying and modelling animal dispersal have commonly assumed that individual movements arise from a predefined set of local decision rules operating within a static isotropic (i.e. circular) perceptual range. 2. We discuss how this assumption fai...
متن کاملa comparative study of the theme of "marriage" in three victorian novelists: charles dickens, george eliot and thomas hardy
این تحقیق کوشیده است با انتخاب پنج رمان از میان آثار برگزیده، «چارلز دیکنز»، «جورج الیوت» و «توماس هاردی » و با رویکردی تطبیقی به بررسی درونمایه ی «ازدواج» در آثار این سه رمان نویس بزرگ دوره ی ویکتوریا بپردازد. فرضیه ی اولیه ی تحقیق این بوده است که چارلز دیکنز (1870- 1812) با زبانی شوخ و گزنده، جورج الیوت(1880- 1819) با نگاهی آموزشی–اندرزگونه و توماس هاردی(1928- 1840) با رویکردی تلخ وانتقادی به...
Sex ratios of Mountain Plovers from egg production to fledging
Skewed sex ratios can have negative implications for population growth if they do not match a species’ life history. A skewed tertiary sex ratio has been detected in a population of Mountain Plover (Charadrius montanus), a grassland shorebird experiencing population declines. To study the cause of the observed male skew, we examined three early life stages between egg and fledgling in eastern C...
متن کاملEvaluation of Automated Radio Telemetry for Quantifying Movements and Home Ranges of Snakes
—We evaluated an automated telemetry system that can dramatically increase the amount of activity and spatial data collected for snakes. We developed methods for analyzing data from single automated receiving units (ARUs) and ARU arrays, compared results from ARUs with conventional hand tracking, and assessed previously untested assumptions used in conventional telemetry, using data from ratsna...
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ژورنال
عنوان ژورنال: The Wilson Bulletin
سال: 2005
ISSN: 0043-5643
DOI: 10.1676/03-116