• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Section 4 - Chandler Unified School District / Overview
Section 4 - Chandler Unified School District / Overview

- Wiley Online Library
- Wiley Online Library

... more likely to have similar resource requirements than distant relatives, and thus, compete more strongly for limited resources. While this assumption has been popular because it is intuitive, it has also been subject to relatively little experimentation. Over the past decade, a growing number of CR ...
Altitudinal zonation among lizards of the genus
Altitudinal zonation among lizards of the genus

... upon each species separately, addressing how the different hypothesized factors are influential under different circumstances. Such a Grinnellian niche approach has been used to analyze distributions of other species (e.g., James et al. 1984). The same information can be gotten from either the commu ...
What Does the Federal Listing of Koala as Vulnerable Mean?
What Does the Federal Listing of Koala as Vulnerable Mean?

... decision-making. As part of this process, the Australian Government is leading a national reform process through the Council of Australian Governments (COAG) targeting reduction of red tape. There is consensus at all levels that it is important to maintain high environmental standards while making t ...
Resource partitioning
Resource partitioning

... Mediterranean Sea, we cannot rely on physiological constraints as a mechanism to exclude potential invaders. With multiple introductions, some individuals with slightly different physiology could survive and reproduce in an environment once thought uninhabitable by their species. ...
the role of competition in structuring ant communities: a review
the role of competition in structuring ant communities: a review

... mechanisms underlining species coexistence have received support from empirical studies. The first predicts a balance between competition and colonization, which form a continuum along which species are distributed. Species at one extreme are good at competing and bad at colonizing, whereas species ...
Factors Affecting Human Population Size
Factors Affecting Human Population Size

... Reproductive Patterns and Survival Reproductive patterns can be classified into two fundamental reproductive patterns: r-selected and K-selected species. r-Selected species are opportunists and reproduce when conditions are favorable or when disturbance opens a niche for invasion. Most species of t ...
here [7] - University of Kent
here [7] - University of Kent

... Using a detailed questionnaire, this risk assessment scheme for potentially invasive species allows experts to share their knowledge regarding a specific species at a defined spatial extent, as well as indicating their level of certainty in regards to their answers. The questionnaire comprises a ser ...
Scaling up keystone effects from simple to complex
Scaling up keystone effects from simple to complex

... complex ecological networks found in natural ecosystems. Especially important is the scaling up of our limited understanding of how and under what conditions loss of ÔkeystoneÕ species causes large declines of many other species. Here we explore how these keystone effects vary among simulations prog ...
Sample pages 1 PDF
Sample pages 1 PDF

... Gabriel 1987; Huey and Kingsolver n. d.; Weltzer and Miller 2013) Elucidating trade-offs in microorganisms is highly challenging (Elena and Lenski 2003; Kassen and Rainey 2004; Bennett and Lenski 2007; Weltzer and Miller 2013). In this context, Levins (1968) view of resource allocation also consider ...
Adaptive Radiation - Princeton University Press
Adaptive Radiation - Princeton University Press

... related species. In fact, when the concept of adaptive radiation was first developed, the absence of competitors was emphasized as a key facilitating or predisposing factor. For example, islands were viewed as empty environments when the first colonists arrived, and diversification proceeded until a ...
Filling Key Gaps in Population and Community Ecology
Filling Key Gaps in Population and Community Ecology

... drove community composition, and species interactions were of lesser importance. In contrast, when oceanographic conditions facilitated the return of larvae to shore, recruitment was high, resources became limiting, and the importance of interspecific interactions increased (Connolly and Roughgarden ...
Limiting similarity, species packing, and the shape of
Limiting similarity, species packing, and the shape of

... Kurtosis is a common measure of the peakedness of a distribution. Applied to competition kernel shapes, it can give useful guidance about clustering tendencies. Square or box-like kernels (Leimar et al., 2008; Pigolotti et al., 2010) are typically platykurtic and tend to promote clustering (Fig. 3a) ...
File
File

... Intraspecific competition: an ecological interaction in which individuals of the same species of population compete for resources ...
10/19/06 version
10/19/06 version

... Braun-Blanquet (1932), who described the association as having concrete reality, would have a ...
PART
PART

... outbreaks both stop when resources are exhausted. f. Among many resources, one will be depleted first; this is the limiting resource. g. The largest population that can be supported by environment is the carrying capacity (K). h. A population slows its growth rate in response to diminishing resource ...
Biological interactions in fish stocks: models and reality
Biological interactions in fish stocks: models and reality

Investigating factors controlling population size. (WJEC A2)
Investigating factors controlling population size. (WJEC A2)

... Put out an extra 4 feeding stations, representing the provision of supplementary food for the capercaille. This time, the each capercaille in the pair only needs to feed once to reproduce and each receive an extra life. Allow the game to run for fifteen minutes. On return to base, are the ratios of ...
McPeek, M. A. 1996. Tradeoffs, food web structure
McPeek, M. A. 1996. Tradeoffs, food web structure

... different species assemblages to characterize water bodies with different top predators (Dodson 1970; Vanni 1986, 1988; McPeek 1990a, 1990b; Werner and McPeek 1994). Trade-offs operating at the between-community scale can therefore have profound effects on species distributions in the environment, b ...
Bruun_Oikos2006 - Research Portal
Bruun_Oikos2006 - Research Portal

... (Foster et al. 2004), as well as trophic interactions with mutualists (van der Heijden 2004) and herbivores (Edwards and Crawley 1999). However, it is not the level of resources available to the community as a whole that matters, but the continuous supply (for plants, over the whole growing season) ...
Variation in the outcome of population interactions: bifurcations and
Variation in the outcome of population interactions: bifurcations and

... Variable interactions: bifurcations ...
Ch. 5 Review PP
Ch. 5 Review PP

... Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
Ch.51 - Narragansett Schools
Ch.51 - Narragansett Schools

... Ecosystem = interaction of biotic (living) & abiotic (nonliving) factors - abiotic = temp, water, sun, wind, rocks Biosphere = all regions of the earth that contain living things Habitat = specific place where an organism usually lives Niche = resources in the environment used by an ...
Conservation Strategies for Species Affected by Apparent Competition
Conservation Strategies for Species Affected by Apparent Competition

... Abstract: Apparent competition is an indirect interaction between 2 or more prey species through a shared predator, and it is increasingly recognized as a mechanism of the decline and extinction of many species. Through case studies, we evaluated the effectiveness of 4 management strategies for spec ...
Resource quantity, not resource heterogeneity, maintains plant
Resource quantity, not resource heterogeneity, maintains plant

< 1 ... 60 61 62 63 64 65 66 67 68 ... 228 >

Storage effect

The storage effect is a coexistence mechanism proposed in the ecological theory of species coexistence, which tries to explain how such a wide variety of similar species are able to coexist within the same ecological community or guild. The storage effect was originally proposed in the 1980s to explain coexistence in diverse communities of coral reef fish, however it has since been generalized to cover a variety of ecological communities. The theory proposes one way for multiple species to coexist: in a changing environment, no species can be the best under all conditions. Instead, each species must have a unique response to varying environmental conditions, and a way of buffering against the effects of bad years. The storage effect gets its name because each population ""stores"" the gains in good years or microhabitats (patches) to help it survive population losses in bad years or patches. One strength of this theory is that, unlike most coexistence mechanisms, the storage effect can be measured and quantified, with units of per-capita growth rate (offspring per adult per generation).The storage effect can be caused by both temporal and spatial variation. The temporal storage effect (often referred to as simply ""the storage effect"") occurs when species benefit from changes in year-to-year environmental patterns, while the spatial storage effect occurs when species benefit from variation in microhabitats across a landscape.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report