The Marine Ecozones of Canada
... sectoral themes like the distribution of current or past plant species, climatic regimes or physiographic features. The focus was ecosystems--distinctive areas where organisms (including humans) and the physical environment (i.e. soils, water, climate,) cohere as a system. ...
... sectoral themes like the distribution of current or past plant species, climatic regimes or physiographic features. The focus was ecosystems--distinctive areas where organisms (including humans) and the physical environment (i.e. soils, water, climate,) cohere as a system. ...
Changes to Marine Trophic Networks Caused by
... world is caused by increased harvesting of low trophic levels in marine networks (sequential addition of new fisheries), even when catches of high trophic level species remain constant or increase. This pattern of sequential addition to the fisheries of low trophic level species was termed fishing t ...
... world is caused by increased harvesting of low trophic levels in marine networks (sequential addition of new fisheries), even when catches of high trophic level species remain constant or increase. This pattern of sequential addition to the fisheries of low trophic level species was termed fishing t ...
Srivastava and Bell 2009
... communities provide a more balanced diet (DeMott 1998). The opposite pattern could occur if high prey diversity reduces the searching efficiency of specialist predators (Root 1973), or increases the likelihood of including a predationresistant but slow-growing prey species (e.g. Fox 2004). Similarly ...
... communities provide a more balanced diet (DeMott 1998). The opposite pattern could occur if high prey diversity reduces the searching efficiency of specialist predators (Root 1973), or increases the likelihood of including a predationresistant but slow-growing prey species (e.g. Fox 2004). Similarly ...
Estuaries in the Balance - Center for Global Environmental Education
... • Suggested sequence and keys to success: Suggestions for the teacher on how to prepare yourself and your students to get the most from each video or sub-module • Background information: A short introduction to the important ideas teachers need to know in order to effectively teach the concepts in t ...
... • Suggested sequence and keys to success: Suggestions for the teacher on how to prepare yourself and your students to get the most from each video or sub-module • Background information: A short introduction to the important ideas teachers need to know in order to effectively teach the concepts in t ...
Recovering a keystone species in a biodiversity hotspot - Helvia
... restocking effort by ensuring that the restocking plots are close to each other, thus avoiding isolated enclosures in order to scatter the impact of aerial predation. In turn, the following chapter shows that restocking in enclosures combined with an intensive habitat improvement around them can be ...
... restocking effort by ensuring that the restocking plots are close to each other, thus avoiding isolated enclosures in order to scatter the impact of aerial predation. In turn, the following chapter shows that restocking in enclosures combined with an intensive habitat improvement around them can be ...
CA-2004-051ATT1
... Secretary for Fish and Wildlife and Parks at the U.S. Department of the Interior requested from the Court a six month extension of the May 15, 2004, deadline pursuant to 16 U.S.C. 1533(b)(6)(B)(i). The request was based upon the Assistant Secretary’s assessment that there is substantial disagreemen ...
... Secretary for Fish and Wildlife and Parks at the U.S. Department of the Interior requested from the Court a six month extension of the May 15, 2004, deadline pursuant to 16 U.S.C. 1533(b)(6)(B)(i). The request was based upon the Assistant Secretary’s assessment that there is substantial disagreemen ...
The Hoary Marmot of the North Cascades in Washington
... up to 100 scats. Marmot scat can range from sausage shaped pellets to folded chords, but the color is usually black. Studies in Glacier National Park in Montana found that there was high burrow fidelity and burrow use patterns showed preferential use by particular animals. While this information is ...
... up to 100 scats. Marmot scat can range from sausage shaped pellets to folded chords, but the color is usually black. Studies in Glacier National Park in Montana found that there was high burrow fidelity and burrow use patterns showed preferential use by particular animals. While this information is ...
8. Eleutherodactylus planirostris, the Greenhouse Frog
... for the greenhouse frog because 1) at the time, greenhouse frogs were only found in lower elevations, and thus thought less likely to impact native invertebrates and their native predators, which primarily reside in high elevation forests, and 2) because the greenhouse frog forages in the leaf litt ...
... for the greenhouse frog because 1) at the time, greenhouse frogs were only found in lower elevations, and thus thought less likely to impact native invertebrates and their native predators, which primarily reside in high elevation forests, and 2) because the greenhouse frog forages in the leaf litt ...
Effects of physical disturbance and habitat
... granulometrical and chemical composition of sediment, and resuspension (Karlson et al. 2005, Michaud et al. 2005, Gray & Elliott 2009). Vegetated soft bottom communities are widespread in the northern Baltic Sea and have an essential role in the coastal ecosystems. These communities form an importan ...
... granulometrical and chemical composition of sediment, and resuspension (Karlson et al. 2005, Michaud et al. 2005, Gray & Elliott 2009). Vegetated soft bottom communities are widespread in the northern Baltic Sea and have an essential role in the coastal ecosystems. These communities form an importan ...
Gopherus agassizii - Desert Tortoise Council
... Habitat has changed unfavorably during the past 150 y for the desert tortoise Gopherus agassizii, a federally threatened species with declining populations in the Mojave Desert and western Sonoran Desert. To support recovery efforts, we synthesized published information on relationships of desert to ...
... Habitat has changed unfavorably during the past 150 y for the desert tortoise Gopherus agassizii, a federally threatened species with declining populations in the Mojave Desert and western Sonoran Desert. To support recovery efforts, we synthesized published information on relationships of desert to ...
Enhancing and Restoring Habitat for the Desert Tortoise
... Habitat has changed unfavorably during the past 150 y for the desert tortoise Gopherus agassizii, a federally threatened species with declining populations in the Mojave Desert and western Sonoran Desert. To support recovery efforts, we synthesized published information on relationships of desert to ...
... Habitat has changed unfavorably during the past 150 y for the desert tortoise Gopherus agassizii, a federally threatened species with declining populations in the Mojave Desert and western Sonoran Desert. To support recovery efforts, we synthesized published information on relationships of desert to ...
insert new cover - Warringah Council
... possibly other threatened species. The reserve also contains large areas of high conservation habitat and a range of vegetation communities from Peppermint-Angophora Forest in the sheltered gullies to Ridge-top Woodland and Coastal Heath on the exposed ridges. It is also home to a number of Rare or ...
... possibly other threatened species. The reserve also contains large areas of high conservation habitat and a range of vegetation communities from Peppermint-Angophora Forest in the sheltered gullies to Ridge-top Woodland and Coastal Heath on the exposed ridges. It is also home to a number of Rare or ...
Moths and Mountains: Diversity, Altitude and Latitude
... (b) Ailao Shan and (c) Lijiang ............................................................................... 224 Figure 6.6 NMDS Ordination plot of (a) Mengla (tropical) moth assemblages across four elevational bands (800m, 1000m, 1200m and 1400m a.s.l.) (stress + 0.07), (b) Ailao Shan (sub-tropic ...
... (b) Ailao Shan and (c) Lijiang ............................................................................... 224 Figure 6.6 NMDS Ordination plot of (a) Mengla (tropical) moth assemblages across four elevational bands (800m, 1000m, 1200m and 1400m a.s.l.) (stress + 0.07), (b) Ailao Shan (sub-tropic ...
restoration of tipton kangaroo rats at kern national wildlife refuge
... significantly reduced throughout their historic range in the San Joaquin Valley, California, primarily due to profound fragmentation, degradation, and loss of habitat. Much of the habitat within their former range was displaced by agricultural, industrial, and urban development, facilitated by the c ...
... significantly reduced throughout their historic range in the San Joaquin Valley, California, primarily due to profound fragmentation, degradation, and loss of habitat. Much of the habitat within their former range was displaced by agricultural, industrial, and urban development, facilitated by the c ...
Wulff 2012 - FSU Biology
... demonstrated to diminish populations or exclude sponge species from a habitat in only a few cases. Cases in which competitive interactions have appeared obvious have often turned out to be neutral or even beneficial interactions when observed over time. Especially striking in this regard are sponge– ...
... demonstrated to diminish populations or exclude sponge species from a habitat in only a few cases. Cases in which competitive interactions have appeared obvious have often turned out to be neutral or even beneficial interactions when observed over time. Especially striking in this regard are sponge– ...
Inertia: the discrepancy between individual and common good in
... performance. Individuals can be selected to have traits that diminish a common good and make population persistence difficult. At the extreme, the discrepancy between levels of selection is predicted to make traits evolve towards values at which a population can no longer persist (evolutionary suici ...
... performance. Individuals can be selected to have traits that diminish a common good and make population persistence difficult. At the extreme, the discrepancy between levels of selection is predicted to make traits evolve towards values at which a population can no longer persist (evolutionary suici ...
Differential competitive abilities between Caribbean coral species
... Caribbean coral species against the brown alga Lobophora variegata on a fringing reef in Curaçao, Netherlands Antilles. This alga has a widespread distribution and is considered particularly aggressive towards corals due to its creeping growth form. We compared the growth of transplanted algae over ...
... Caribbean coral species against the brown alga Lobophora variegata on a fringing reef in Curaçao, Netherlands Antilles. This alga has a widespread distribution and is considered particularly aggressive towards corals due to its creeping growth form. We compared the growth of transplanted algae over ...
Landscape effects on insect pests of Dracaena marginata
... different landscape metrics were evaluated at six spatial scales from local to broad scale. Insect groups showed different responses at different spatial scales. While leafhopper egg abundance was more sensitive in terms of their correlations with different land uses and metrics; katydid egg abundan ...
... different landscape metrics were evaluated at six spatial scales from local to broad scale. Insect groups showed different responses at different spatial scales. While leafhopper egg abundance was more sensitive in terms of their correlations with different land uses and metrics; katydid egg abundan ...
Arizona`s State Wildlife Action Plan
... wildlife and habitats. We have seen the emergence of new wildlife diseases, the introduction of new invasive species, the listing of some species under the Endangered Species Act, and the delisting of others. We have even welcomed a new species, the Least Tern, to our State. At Federal, State, and l ...
... wildlife and habitats. We have seen the emergence of new wildlife diseases, the introduction of new invasive species, the listing of some species under the Endangered Species Act, and the delisting of others. We have even welcomed a new species, the Least Tern, to our State. At Federal, State, and l ...
PDF of article
... this room was not air-conditioned and had walls of the building’s original brick foundation (Fig. 6). Although the room was free of clutter, adults and immatures were flushed with a pyrethrin aerosol from cracks in the walls, beneath equipment, and behind sheets of plywood mounted on the walls to at ...
... this room was not air-conditioned and had walls of the building’s original brick foundation (Fig. 6). Although the room was free of clutter, adults and immatures were flushed with a pyrethrin aerosol from cracks in the walls, beneath equipment, and behind sheets of plywood mounted on the walls to at ...
Understanding broad-scale vegetation patterns Abst
... Moravec and Robert Neuhäusl are well known for their landmark contributions to understanding vegetation patterns and processes in Europe and beyond. Czech vegetation scientists have also played an important role in shaping the IAVS as a scientific society and IAVS symposia in particular. From 1953 t ...
... Moravec and Robert Neuhäusl are well known for their landmark contributions to understanding vegetation patterns and processes in Europe and beyond. Czech vegetation scientists have also played an important role in shaping the IAVS as a scientific society and IAVS symposia in particular. From 1953 t ...
Can the Convention on Biological Diversity Save the Siberian Tiger
... Prior to 1989 and the opening of the borders, the government closed Russia to international trade.56 Currently, international logging in Russia occurs on two fronts, both of which result from the fall of Communism and the current economic situation." The first is on the level of the federal and regi ...
... Prior to 1989 and the opening of the borders, the government closed Russia to international trade.56 Currently, international logging in Russia occurs on two fronts, both of which result from the fall of Communism and the current economic situation." The first is on the level of the federal and regi ...
A Guide to Selling Native Prairie Seed in Nebraska
... success with this kind of planting is to get adequate germination and survival of your new plants during the first year, so that by the second year your pre-emergent herbicide can take over. Starting production plots from seedlings is a good option when greenhouse facilities and staff are available, ...
... success with this kind of planting is to get adequate germination and survival of your new plants during the first year, so that by the second year your pre-emergent herbicide can take over. Starting production plots from seedlings is a good option when greenhouse facilities and staff are available, ...
The Scrub Management Handbook - Natural England publications
... of scrub took a leap forward in the year 2000 with the publication of the Joint Nature Conservation Committee Report No 308: The nature conservation value of scrub in Britain. This provided the underpinning science that enabled FACT to proceed with its planned Handbook on the practice of managing sc ...
... of scrub took a leap forward in the year 2000 with the publication of the Joint Nature Conservation Committee Report No 308: The nature conservation value of scrub in Britain. This provided the underpinning science that enabled FACT to proceed with its planned Handbook on the practice of managing sc ...
Louisiana`s breeding wood warbler
... species is discussed in detail in the next section of this publication. ...
... species is discussed in detail in the next section of this publication. ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.