American Journal of Botany
... about how primary producer diversity influences the efficiency of resource use and biomass production in ecosystems, how primary producer diversity influences the transfer and recycling of biomass to other trophic groups in a food web, and the number of species and spatial /temporal scales at which ...
... about how primary producer diversity influences the efficiency of resource use and biomass production in ecosystems, how primary producer diversity influences the transfer and recycling of biomass to other trophic groups in a food web, and the number of species and spatial /temporal scales at which ...
Species diversity: from global decreases to local
... global level, these losses are causing a decrease in total biodiversity [1– 4]. At sub-global scales, losses of native species can be offset by the establishment of exotic species, which can sometimes cause a net increase in diversity for specific regions or locations [5]. In spite of the complexity ...
... global level, these losses are causing a decrease in total biodiversity [1– 4]. At sub-global scales, losses of native species can be offset by the establishment of exotic species, which can sometimes cause a net increase in diversity for specific regions or locations [5]. In spite of the complexity ...
Scientific name
... In Portugal the harvest of cork began in the 19th century on an industrial scale. In that period selective thinning and low density cultivation techniques were introduced to make use of the ground for farming. At the end of the 19th century, the Portuguese cork oak forests were considered the best ...
... In Portugal the harvest of cork began in the 19th century on an industrial scale. In that period selective thinning and low density cultivation techniques were introduced to make use of the ground for farming. At the end of the 19th century, the Portuguese cork oak forests were considered the best ...
Ecology glossary
... bark and heart wood of trees and the hair, claws, etc. of animals which are strictly ‘necromass’. Biome One of the major categories of the world’s distinctive plant assemblages, e.g. the tundra biome, the tropical rainforest biome. Biorational insecticides Insecticides which have no, or relatively l ...
... bark and heart wood of trees and the hair, claws, etc. of animals which are strictly ‘necromass’. Biome One of the major categories of the world’s distinctive plant assemblages, e.g. the tundra biome, the tropical rainforest biome. Biorational insecticides Insecticides which have no, or relatively l ...
008
... Due to the current and historical low level of impact to federally listed species by military training to the summit areas (where most of the OIP target taxa are located in these training areas) of the Kawailoa Training Area (KLOA) and Schofield Barracks East Range (SBER) the Army is proposing a thr ...
... Due to the current and historical low level of impact to federally listed species by military training to the summit areas (where most of the OIP target taxa are located in these training areas) of the Kawailoa Training Area (KLOA) and Schofield Barracks East Range (SBER) the Army is proposing a thr ...
Distribution and Diversity of Fiji`s Terrestrial
... the conservation status of Fiji’s natural forests including identifying a series of biological provinces (based on the distribution and endemism of a number of terrestrial taxa) in which some form of conservation area would need to be established or maintained. A combination of literature surveys, c ...
... the conservation status of Fiji’s natural forests including identifying a series of biological provinces (based on the distribution and endemism of a number of terrestrial taxa) in which some form of conservation area would need to be established or maintained. A combination of literature surveys, c ...
Phylogenetic structure of plant species pools reflects habitat age on
... Methods: We characterized PS of recent species pools of 88 major vascular plant community types occurring in the country, comprising a total of 2306 species, using the mean phylogenetic distance (MPD) between all pairs of species found in each species pool, and compared the PS of these species pools ...
... Methods: We characterized PS of recent species pools of 88 major vascular plant community types occurring in the country, comprising a total of 2306 species, using the mean phylogenetic distance (MPD) between all pairs of species found in each species pool, and compared the PS of these species pools ...
Biodiversity and the functioning of seagrass ecosystems
... ABSTRACT: Biodiversity at multiple levels — genotypes within species, species within functional groups, habitats within a landscape — enhances productivity, resource use, and stability of seagrass ecosystems. Several themes emerge from a review of the mostly indirect evidence and the few experiments ...
... ABSTRACT: Biodiversity at multiple levels — genotypes within species, species within functional groups, habitats within a landscape — enhances productivity, resource use, and stability of seagrass ecosystems. Several themes emerge from a review of the mostly indirect evidence and the few experiments ...
38662778 - studylib.net
... rattus from Surprise Island (New Caledonia). In this paper, we demonstrate the importance of the preeradication study, which allowed us to characterize the ecosystem, to study the trophic relationships of the rat and other species on the island, and to prevent possible surprise effects. We explain h ...
... rattus from Surprise Island (New Caledonia). In this paper, we demonstrate the importance of the preeradication study, which allowed us to characterize the ecosystem, to study the trophic relationships of the rat and other species on the island, and to prevent possible surprise effects. We explain h ...
Ecosystems: the flux of energy and matter
... low-quality plant food may have a net production efficiency of less than 1%, while an ectothermic carnivore that eats a high-quality animal prey may have a value as high as 30%. 12.4 Nutrient cycling and decomposer trophic levels Detritus, or dead organic matter, is another major energy pathway in m ...
... low-quality plant food may have a net production efficiency of less than 1%, while an ectothermic carnivore that eats a high-quality animal prey may have a value as high as 30%. 12.4 Nutrient cycling and decomposer trophic levels Detritus, or dead organic matter, is another major energy pathway in m ...
Altitudinal zonation among lizards of the genus
... Our previous studies reveal that lizard parasites (ectoparasitic mites and ticks, and the endoparasite Plasmodium) do not set Liolaemus altitudinallimits. Thermal tolerances do not appear to limit altitudinal distributions, although cold ambient temperatures dictate that only live-bearing species ca ...
... Our previous studies reveal that lizard parasites (ectoparasitic mites and ticks, and the endoparasite Plasmodium) do not set Liolaemus altitudinallimits. Thermal tolerances do not appear to limit altitudinal distributions, although cold ambient temperatures dictate that only live-bearing species ca ...
- University of Alberta
... modelof growth(Ricker methodfordetermining Loofromthe von Bertalanffy ...
... modelof growth(Ricker methodfordetermining Loofromthe von Bertalanffy ...
BROWN HARE - Cheshire Wildlife Trust
... Despite a well-documented decline in numbers since the turn of the twentieth century, Brown hares remain widespread and locally abundant in lowland Britain. The fall in numbers has been most pronounced in the western pastoral regions. The pattern of decline shows a modest post- war increase, followe ...
... Despite a well-documented decline in numbers since the turn of the twentieth century, Brown hares remain widespread and locally abundant in lowland Britain. The fall in numbers has been most pronounced in the western pastoral regions. The pattern of decline shows a modest post- war increase, followe ...
... In addition, dietary and parasitological studies provide basic biological knowledge about any species, and an understanding of the importance of their function and position in their habitats. Thus, it is surprising that these aspects have not been studied in many species yet. Particularly, worldwide ...
Dry Forest Wildlife Habitat Objective
... measure was “very imprecise” – 3-5% per year change would not be detected Population declines and range reductions: •Central Oregon – comparison of density estimates between Dixon (1995) and Frenzel and Popper (1998) indicate a 20% decline in the density of WHWO in about 5 years •Central Oregon, re ...
... measure was “very imprecise” – 3-5% per year change would not be detected Population declines and range reductions: •Central Oregon – comparison of density estimates between Dixon (1995) and Frenzel and Popper (1998) indicate a 20% decline in the density of WHWO in about 5 years •Central Oregon, re ...
Introduction to Natural Heritage
... • Environments tend to be the ‘abiotic’ – non-living elements – different to ecosystems which are primarily (but not entirely) living elements. • 3 major environment types: land, marine and freshwater. • Environment classifications built around 3 physical ‘drivers’: climate, geology/land form and so ...
... • Environments tend to be the ‘abiotic’ – non-living elements – different to ecosystems which are primarily (but not entirely) living elements. • 3 major environment types: land, marine and freshwater. • Environment classifications built around 3 physical ‘drivers’: climate, geology/land form and so ...
BLACK-THROATED GREEN WARBLER Dendroica virens
... habitat after it has been lost to harvesting. Techniques that alter the shrub component, debris structure, and the eventual plant species distribution in mixedwood stands may also reduce habitat suitability of habitat (Cooper et al. 1997). Habitat is also lost or fragmented by other activities such ...
... habitat after it has been lost to harvesting. Techniques that alter the shrub component, debris structure, and the eventual plant species distribution in mixedwood stands may also reduce habitat suitability of habitat (Cooper et al. 1997). Habitat is also lost or fragmented by other activities such ...
Potamopyrgus antipodarum(Mollusca
... great variation in salinity), the ‘White’ marsh lakes of Mont-Dol (ancient polders), the ‘Black’ marsh lakes (old peat cuttings) and coppiced woodland and pasture (Costil et al., 2001). The four study-sites distributed in ditches and canals were visited monthly from January to June 1999. They were s ...
... great variation in salinity), the ‘White’ marsh lakes of Mont-Dol (ancient polders), the ‘Black’ marsh lakes (old peat cuttings) and coppiced woodland and pasture (Costil et al., 2001). The four study-sites distributed in ditches and canals were visited monthly from January to June 1999. They were s ...
Varanus acanthurus. Photo by Jeff Lemm.
... nocturnal species or those in cold temperate regions, may be little affected by climate warming but many others such as thermoconformer species in tropical forests and live bearers appear to be particularly vulnerable. The 2011 IUCN Red List of Threatened Species lists 12 lizard species as extinct a ...
... nocturnal species or those in cold temperate regions, may be little affected by climate warming but many others such as thermoconformer species in tropical forests and live bearers appear to be particularly vulnerable. The 2011 IUCN Red List of Threatened Species lists 12 lizard species as extinct a ...
Year 7: Where do flying-foxes fit in?
... eaten. Students look at a picture of a forest ecosystem and draw their own food web. A role play is acted out to see what would happen if one of the links in the ecosystem disappears. Finally students are introduced to some of the ...
... eaten. Students look at a picture of a forest ecosystem and draw their own food web. A role play is acted out to see what would happen if one of the links in the ecosystem disappears. Finally students are introduced to some of the ...
DotE - Productivity Commission
... example, the benefits of a healthy environment are important by-products from projects under the Emissions Reduction Fund. The Fund works by purchasing estimated emissions reductions from eligible projects, providing an incentive for businesses and the community to improve practices and invest in ne ...
... example, the benefits of a healthy environment are important by-products from projects under the Emissions Reduction Fund. The Fund works by purchasing estimated emissions reductions from eligible projects, providing an incentive for businesses and the community to improve practices and invest in ne ...
Springs and Seepages - An important habitat for wildlife
... associated information about lower plants (mosses, liverworts and hornworts) was also gathered to provide a more detailed baseline of the ecological interest of springs and seepages. Springs and seepage sites in four geographically and geologically distinct parts of Wessex were surveyed for inverteb ...
... associated information about lower plants (mosses, liverworts and hornworts) was also gathered to provide a more detailed baseline of the ecological interest of springs and seepages. Springs and seepage sites in four geographically and geologically distinct parts of Wessex were surveyed for inverteb ...
Invasive Species Definition Clarification and Guidance White Paper
... desirable plants and animals and humans depend on for survival. Environmental harm may be a result of direct effects of invasive species, leading to biologically significant decreases in native species populations. Examples of direct effects on native species include preying and feeding on them, cau ...
... desirable plants and animals and humans depend on for survival. Environmental harm may be a result of direct effects of invasive species, leading to biologically significant decreases in native species populations. Examples of direct effects on native species include preying and feeding on them, cau ...
Nile Tilapia Oreochromis niloticus
... mitigatory methods are applied. Due to their ability to adapt to new environments (with rapid reproduction and spread), O. niloticus have the potential to seriously threaten native biodiversity. A study by Zengeyah et al. (2011) investigated the stomach contents of tilapiine species in the Limpopo R ...
... mitigatory methods are applied. Due to their ability to adapt to new environments (with rapid reproduction and spread), O. niloticus have the potential to seriously threaten native biodiversity. A study by Zengeyah et al. (2011) investigated the stomach contents of tilapiine species in the Limpopo R ...
Summary - Yellowstone to Yukon Conservation Initiative
... the habitat requirements of wildlife species can be affected by many types of resource development or other activity. The spatial pattern of impacts is the key to cumulative effects assessment, since most species are affected by habitat connectivity and fragmentation at different scales. ...
... the habitat requirements of wildlife species can be affected by many types of resource development or other activity. The spatial pattern of impacts is the key to cumulative effects assessment, since most species are affected by habitat connectivity and fragmentation at different scales. ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.