作者: enumaerate 時(shí)間: 2025-3-25 17:08
Applications of Fractal Geometry in Wildlife Biologyy to describe, predict, and manage natural resources. Complexity can be addressed with tools to assess spatial pattern over vast expanses (e.g., geographic information systems and remote sensing), to uncover persistent interactions over space and time (Cressie 1991 Deutsch and Journel 1992), and to
作者: AVERT 時(shí)間: 2025-3-25 21:25
作者: AER 時(shí)間: 2025-3-26 03:43
作者: Charlatan 時(shí)間: 2025-3-26 04:57
Disturbance and Diversity in a Landscape Contexttion in ecosystem structure and composition (White 1979). It is not surprising, then, that many plant and animal species are dependent on or otherwise affected by the conditions created by disturbance. As a result, species richness within ecosystems and landscapes is, in part, a function of the hist
作者: WAG 時(shí)間: 2025-3-26 11:04
作者: 劇本 時(shí)間: 2025-3-26 14:02
Hierarchy Theory: A Guide to System Structure for Wildlife Biologistsh developments of hierarchy theory as applied to ecological systems, and many individual authors have contributed to both. The seminal monographs of Forman and Godron.and O’Neill et al..were both published in 1986 (Forman and Godron 1986, O’Neill et al. 1986). Robert (Bob) O’Neill in particular has
作者: Mumble 時(shí)間: 2025-3-26 18:16
Neutral Models: Useful Tools for Understanding Landscape Patterns results of the neutral model provide a means of testing the effect of the measured process on patterns that are actually observed (Caswell 1976). If observed patterns do not differ from the neutral model, then the measured process has not significantly affected the observed pattern. Conversely, whe
作者: 稱贊 時(shí)間: 2025-3-26 23:55
Understanding Measures of Landscape Patterneffects of pattern on organisms. In order to investigate relationships between landscape pattern and ecological processes, it is often helpful to describe the patterns in quantifiable terms, and a variety of spatial metrics have been developed for this purpose (Whitcomb et al. 1981 Forman and Godron
作者: SKIFF 時(shí)間: 2025-3-27 04:11
作者: 書法 時(shí)間: 2025-3-27 09:07
A Spatial View of Population Dynamicsobservations (Ludwig and Reynolds 1988). Wildlife managers go through many formal and informal steps in managing the resources under their responsibility, starting with visualizing a population’s probable position on a logistics growth curve (Lotka 1925). For example, when an investigator claims: (1
作者: maculated 時(shí)間: 2025-3-27 13:13
作者: Efflorescent 時(shí)間: 2025-3-27 16:56
Landscape Heterogeneity and Ungulate Dynamics: What Spatial Scales are Important?l known. Clearly, the spatial arrangement and density of vegetation influences the success of herbivores in finding food (Kareiva 1983 Risch et al. 1983 Stanton 1983 Cain 1985 Bell 1991). Theoretical studies suggest that organisms must operate at larger spatial scales (i.e., search a larger area) as
作者: 被告 時(shí)間: 2025-3-27 18:17
The Influence of Landscape Scale on the Management of Desert Bighorn Sheepton (1929) estimated there were approximately 2,000,000 bighorn sheep in the contiguous United States in pristine times; about half were desert bighorn sheep (Buechner 1960 Cooperrider 1985). However, Valdez (1988) doubted that wild sheep numbers ever exceeded 500,000 in North America. Bighorn sheep
作者: Harridan 時(shí)間: 2025-3-27 22:21
作者: 畸形 時(shí)間: 2025-3-28 05:33
Adaptive Policy Design: Thinking at Large Spatial Scales and maintenance of biodiversity. In this new policy environment, it is fair to say that there are no longer any reliable standard operating procedures and decision rules, so that every management decision and initiative should be viewed in some sense as an experiment with highly uncertain outcomes
作者: daredevil 時(shí)間: 2025-3-28 10:11
作者: 斥責(zé) 時(shí)間: 2025-3-28 13:36
or wildlife managers.Impressive list of contributorsEcologists increasingly recognize the importance of scale in our understanding of nature. Landscape ecology in particular emphasizes temporal and spatial scales. While research and management of wildlife has traditionally emphasized studies at smal
作者: 吹牛需要藝術(shù) 時(shí)間: 2025-3-28 15:24
作者: Annotate 時(shí)間: 2025-3-28 21:18
作者: 獨(dú)白 時(shí)間: 2025-3-28 23:56
The Importance of Scale in Habitat Conservation for an Endangered Species: The Capercaillie in Centrspecies to persist, its requirements must be met at all scales. Specialized habitat needs and large spatial requirements render the capercaillie.an excellent example to demonstrate the importance of spatial scale in the conservation of wildlife species.
作者: 甜得發(fā)膩 時(shí)間: 2025-3-29 05:15
Book 1997ing Concepts * Landscape Metrics * Applications and Large Scale Management Wildlife and Landscape Ecology will be welcomed by scientists and managers with interest in and responsibility for the health of wild populations and their role in ecosystems.
作者: 他姓手中拿著 時(shí)間: 2025-3-29 10:07
作者: SUGAR 時(shí)間: 2025-3-29 14:03
作者: helper-T-cells 時(shí)間: 2025-3-29 16:02
作者: 合群 時(shí)間: 2025-3-29 21:25
作者: 口音在加重 時(shí)間: 2025-3-30 03:49
作者: PAD416 時(shí)間: 2025-3-30 07:46
作者: 防止 時(shí)間: 2025-3-30 09:38
The Role of Moose in Landscape Processes: Effects of Biogeography, Population Dynamics, and Predatioecosystem processes has been neglected by many ecologists and that future advances in ecosystem science will require integrating the behavior and population ecology of large mammals into the existing paradigms of landscape ecology.
作者: CLAP 時(shí)間: 2025-3-30 14:41
Scalar Advanced and Mixed Differential Equations on Semiaxes,, two negative terms, and the terms of different signs are considered. For mixed equations with two coefficients of different signs, the asymptotics of nonoscillatory solutions can be defined, once the relation between the two coefficients is known; it will also depend on the deviation (delay or advanced) of the positive term.
作者: Gesture 時(shí)間: 2025-3-30 17:08
Teichoic acids and their models: Membrane biopolymers with polyphosphate backbones. Synthesis, stru
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