role of insects in forest ecosystems
... a. Numerical response: Predator population increases when prey abundant b. Functional response: Consumption / predator increases when prey abundant ...
... a. Numerical response: Predator population increases when prey abundant b. Functional response: Consumption / predator increases when prey abundant ...
The long-term relationship between plant diversity and total plant
... al. 2000, Holt and Loreau 2002, Pacala and Tilman 2002). Second, the two-species case of each model is analytically tractable, and acts as a limiting case for the behavior of more speciose models. Third, the twospecies version of each model might be expected to capture many (though by no means all) ...
... al. 2000, Holt and Loreau 2002, Pacala and Tilman 2002). Second, the two-species case of each model is analytically tractable, and acts as a limiting case for the behavior of more speciose models. Third, the twospecies version of each model might be expected to capture many (though by no means all) ...
PDF - South Coast Wildlands
... neighboring ecoregions. The Peninsular-Borrego Connection links the South Coast Ecoregion to the Mojave and Sonoran deserts. It is an area of extraordinary diversity and a critical landscape connection to maintain and protect. On June 28, 2002, 70 participants representing over 40 agencies, academic ...
... neighboring ecoregions. The Peninsular-Borrego Connection links the South Coast Ecoregion to the Mojave and Sonoran deserts. It is an area of extraordinary diversity and a critical landscape connection to maintain and protect. On June 28, 2002, 70 participants representing over 40 agencies, academic ...
Door County Comprehensive Forest Plan
... course”. In its purest form, preservation occurs without any intervention from man as natural processes take place. Passionate arguments for both forest management and forest preservation have been made for ages, are ongoing today, and will likely continue into the future. What is important to recog ...
... course”. In its purest form, preservation occurs without any intervention from man as natural processes take place. Passionate arguments for both forest management and forest preservation have been made for ages, are ongoing today, and will likely continue into the future. What is important to recog ...
Adults - Gopher Tortoise Day
... You will notice that the males have a concave plastron (underbelly). This is the easiest way to tell the difference between sexes. Males also have a more prominent gular at the front of their plastrons, used for fighting over mating competition. ...
... You will notice that the males have a concave plastron (underbelly). This is the easiest way to tell the difference between sexes. Males also have a more prominent gular at the front of their plastrons, used for fighting over mating competition. ...
Community structure and composition in response to climate change
... 2007). In addition, substantial changes in temperature and precipitation in this region have occurred (Zhai et al., 1999), and this ecosystem is sensitive to climate change (Christensen et al., 2004; Niu et al., 2008; Liu et al., 2009). In order to examine the potential effects of climate warming an ...
... 2007). In addition, substantial changes in temperature and precipitation in this region have occurred (Zhai et al., 1999), and this ecosystem is sensitive to climate change (Christensen et al., 2004; Niu et al., 2008; Liu et al., 2009). In order to examine the potential effects of climate warming an ...
Ecological Light Pollution - The Urban Wildlands Group
... moon, when it is darkest. Communication is necessary (Hailman 1984). While these three species are not neceseither to reduce trespassing from other packs, or to assem- sarily sympatric (ie inhabiting the same area), and differ ble packs to hunt larger prey during dark conditions in other niche dimen ...
... moon, when it is darkest. Communication is necessary (Hailman 1984). While these three species are not neceseither to reduce trespassing from other packs, or to assem- sarily sympatric (ie inhabiting the same area), and differ ble packs to hunt larger prey during dark conditions in other niche dimen ...
Economic Forest Workforce
... forest bank models operate in two ways: raising voluntary carbon offset funds to support community reforestation, urban tree planting, and private forest conservation and management; and establishing a program that pays landowners an annuity based on the long-term value of their timber. These models ...
... forest bank models operate in two ways: raising voluntary carbon offset funds to support community reforestation, urban tree planting, and private forest conservation and management; and establishing a program that pays landowners an annuity based on the long-term value of their timber. These models ...
Open Lands in a New England Town, Lincoln, MA: History, Ecology
... the history and the dynamic nature of the landscape. The knowledge of forests’ and open land’s composition and their likely ecological trajectory can help guide decision making. In addition, not only are land managers required to create an inventory of flora and fauna species of concern, but it is n ...
... the history and the dynamic nature of the landscape. The knowledge of forests’ and open land’s composition and their likely ecological trajectory can help guide decision making. In addition, not only are land managers required to create an inventory of flora and fauna species of concern, but it is n ...
Habitat Features Determine the Basking Distribution of
... equal population sizes of E. marmorata (n 5 54, 95% CI, 47–65) and T. s. elegans (n 5 50, 95% CI, 41–65). The population estimate for E. marmorata is similar to that of Spinks et al. (2003), which reported a population size of 53 (95% CI, 48–66), which indicates a stable population size for this spe ...
... equal population sizes of E. marmorata (n 5 54, 95% CI, 47–65) and T. s. elegans (n 5 50, 95% CI, 41–65). The population estimate for E. marmorata is similar to that of Spinks et al. (2003), which reported a population size of 53 (95% CI, 48–66), which indicates a stable population size for this spe ...
Chapter 3: Maryland`s Wildlife Resources and Species of Greatest
... Species with fragmented or isolated populations Species of special, or conservation, concern Focal species (keystone species, wide-ranging species, species with specific needs) Indicator species “Responsibility” species (i.e. species that have their center of range within a state) Species that aggre ...
... Species with fragmented or isolated populations Species of special, or conservation, concern Focal species (keystone species, wide-ranging species, species with specific needs) Indicator species “Responsibility” species (i.e. species that have their center of range within a state) Species that aggre ...
Marsh Bird Breeding Habitat
... The Schedules, including description of wildlife habitat, wildlife species, and the criteria provided for determining SWH, are based on science and expert knowledge. The ELC Ecosite codes indicate the ecosites (treed and non-treed) as outlined in Ecosites of Ontario – Operational Draft (April 20th, ...
... The Schedules, including description of wildlife habitat, wildlife species, and the criteria provided for determining SWH, are based on science and expert knowledge. The ELC Ecosite codes indicate the ecosites (treed and non-treed) as outlined in Ecosites of Ontario – Operational Draft (April 20th, ...
Plant communities in harsh sites are less invaded: a summary of
... be well known or described, and B) such species may eventually become invasive after ...
... be well known or described, and B) such species may eventually become invasive after ...
1 - Biology Department | UNC Chapel Hill
... the effect disappears at low density of X (negative feedback) = stability the effect is density-independent: facilitation and/or autointerference = succession ...
... the effect disappears at low density of X (negative feedback) = stability the effect is density-independent: facilitation and/or autointerference = succession ...
stochastic processes across scales Disentangling the importance of
... limits local species richness, further suggesting that many communities are not saturated with species [7,82–84]. Likewise, local diversity is typically higher in metacommunities where dispersal rates among localities are more frequent relative to those with less-frequent dispersal [83]. Moreover, t ...
... limits local species richness, further suggesting that many communities are not saturated with species [7,82–84]. Likewise, local diversity is typically higher in metacommunities where dispersal rates among localities are more frequent relative to those with less-frequent dispersal [83]. Moreover, t ...
This page is also available as a
... The main threat to this mangrove is deforestation. Due to its localised populations, it is also at risk from unpredictable storms. Rise in sea level is also a threat. http://www.iucnredlist.org/details/178833/0 Bruguiera hainesii Status: Critically Endangered Range: Singapore, Malaysia and Papa New ...
... The main threat to this mangrove is deforestation. Due to its localised populations, it is also at risk from unpredictable storms. Rise in sea level is also a threat. http://www.iucnredlist.org/details/178833/0 Bruguiera hainesii Status: Critically Endangered Range: Singapore, Malaysia and Papa New ...
13.1 Ecologists Study Relationships
... • Biodiversity is the assortment, or variety, of living things in an ecosystem. • Rain forests have more biodiversity than other locations in the world, but are threatened by human activities. ...
... • Biodiversity is the assortment, or variety, of living things in an ecosystem. • Rain forests have more biodiversity than other locations in the world, but are threatened by human activities. ...
MS-SCI-ES-Unit 4 -- Chapter 10- Ecosystems
... Sunlight Because sunlight is needed for photosynthesis, it is ...
... Sunlight Because sunlight is needed for photosynthesis, it is ...
Wildlife Management Practices (WMPs)
... ornamentals. Unfortunately, many nonnative plant species have become established and spread far beyond where they were initially introduced. This invasion has been detrimental to native plant communities because many nonnative plants out-compete native species for sunlight and nutrients and exclude ...
... ornamentals. Unfortunately, many nonnative plant species have become established and spread far beyond where they were initially introduced. This invasion has been detrimental to native plant communities because many nonnative plants out-compete native species for sunlight and nutrients and exclude ...
Significance of Bottom-Fishing Disturbance
... (1996) recently demonstrated that even large-scale disturbances such as hurricanes have relatively short-term effects on shallow-water communities adapted to frequent physical disturbance (but see Rees et al. 1977). Hence, benthic communities that inhabit frequently disturbed environments are less l ...
... (1996) recently demonstrated that even large-scale disturbances such as hurricanes have relatively short-term effects on shallow-water communities adapted to frequent physical disturbance (but see Rees et al. 1977). Hence, benthic communities that inhabit frequently disturbed environments are less l ...
Drake, D. R. - IPNA-CSIC
... has been recorded in Tenerife (Canary Islands), where an endemic lizard (Gallotia galloti) is frequently preyed upon (Nogales and Medina 2009). Little detailed information has been published on the impact of cats upon invertebrates on islands. In the case of the Canary Islands, perhaps the insular r ...
... has been recorded in Tenerife (Canary Islands), where an endemic lizard (Gallotia galloti) is frequently preyed upon (Nogales and Medina 2009). Little detailed information has been published on the impact of cats upon invertebrates on islands. In the case of the Canary Islands, perhaps the insular r ...
Available
... Succession of grassland effected by over grazing The direct effect of herbivore on vegetation includes modifications to plant growth, reproduction and architecture. In grazing systems, sustainable productivity and the long-term survival of plants depends on reproductive success and the establishment ...
... Succession of grassland effected by over grazing The direct effect of herbivore on vegetation includes modifications to plant growth, reproduction and architecture. In grazing systems, sustainable productivity and the long-term survival of plants depends on reproductive success and the establishment ...
Combining field experiments and individual
... ecology, which provides the key empirical insight, and theoretical ecology, which translates empirical knowledge into analytical theory, remain weakly linked. I illustrate how an individual-based computational model of species interactions is a useful way to bridge the gulf between empirical researc ...
... ecology, which provides the key empirical insight, and theoretical ecology, which translates empirical knowledge into analytical theory, remain weakly linked. I illustrate how an individual-based computational model of species interactions is a useful way to bridge the gulf between empirical researc ...
Metapopulation Ecology - Department of Ecology and Evolutionary
... The deterministic models above, interpreted literally, are models of infinite metapopulations. They assume such a large number of local populations that the rate of growth of the fraction of patches occupied is governed by average probabilities. These deterministic models do not have a key feature o ...
... The deterministic models above, interpreted literally, are models of infinite metapopulations. They assume such a large number of local populations that the rate of growth of the fraction of patches occupied is governed by average probabilities. These deterministic models do not have a key feature o ...
NITROGEN LIMITATION AND TROPHIC VS. ABIOTIC INFLUENCES ON M E. R
... Finally, abiotic conditions also may be important for grasshoppers, because years with below-average temperature and/or above-average precipitation can inhibit their productivity. Cool, wet conditions are often associated with retarded development (Scharff 1954, Dempster 1963, Gage and Mukerji 1977, ...
... Finally, abiotic conditions also may be important for grasshoppers, because years with below-average temperature and/or above-average precipitation can inhibit their productivity. Cool, wet conditions are often associated with retarded development (Scharff 1954, Dempster 1963, Gage and Mukerji 1977, ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.