Effects of local and regional drivers on plant diversity within tundra
... be determined by local drivers such as habitat productivity and ungulate grazing. However, little is known how such local drivers modify the diversity between communities (beta diversity). Furthermore, diversity patterns may be constrained by the size of the regional species pool, which in turn may ...
... be determined by local drivers such as habitat productivity and ungulate grazing. However, little is known how such local drivers modify the diversity between communities (beta diversity). Furthermore, diversity patterns may be constrained by the size of the regional species pool, which in turn may ...
Reef Fishes, Seaweeds, and Corals
... In addition to seasonal variations, an apparently general trend is that the spatial distribution of fish grazing varies inversely with tidal exposure and/or wave action (Van den Hoek et al., 1975, 1978) and directly with the availability of shelter for the herbivores from predatory fishes (Hay, 1981 ...
... In addition to seasonal variations, an apparently general trend is that the spatial distribution of fish grazing varies inversely with tidal exposure and/or wave action (Van den Hoek et al., 1975, 1978) and directly with the availability of shelter for the herbivores from predatory fishes (Hay, 1981 ...
Agents of Pattern Formation: Disturbance Regimes
... Disturbance Regimes It should be obvious from the above that disturbance regimes do not operate independently to create landscape patterns, but rather interact with the physical template and biotic processes, often in synergistic ways, to affect landscape patterns. Indeed, in real landscapes it is e ...
... Disturbance Regimes It should be obvious from the above that disturbance regimes do not operate independently to create landscape patterns, but rather interact with the physical template and biotic processes, often in synergistic ways, to affect landscape patterns. Indeed, in real landscapes it is e ...
Fisheries catches and the carrying capacity of marine ecosystems in
... of ®sheries, and (3) simulating the ecosystem effects of ``®shing down the food web'' in an intensively exploited shelf region. Fisheries utilize ca. 27 and 53% of total primary production in the southern and south-eastern shelf regions, respectively. Regional variation in the carrying capacity appr ...
... of ®sheries, and (3) simulating the ecosystem effects of ``®shing down the food web'' in an intensively exploited shelf region. Fisheries utilize ca. 27 and 53% of total primary production in the southern and south-eastern shelf regions, respectively. Regional variation in the carrying capacity appr ...
Detection of alternative stable states in marine communities
... in which the parameter p adjusts the steepness of the environmental threshold and h sets the midpoint of the threshold. A larger p value will make the curve steeper and a larger h value will shift the curve to the right. Now suppose that recruitment shows a critical threshold depending on the number ...
... in which the parameter p adjusts the steepness of the environmental threshold and h sets the midpoint of the threshold. A larger p value will make the curve steeper and a larger h value will shift the curve to the right. Now suppose that recruitment shows a critical threshold depending on the number ...
SchuetteP0512 - ScholarWorks
... periods with people settled east or west of the permanent river ...................152 5.3. The proportion of lion daytime resting locations and nighttime locations that occurred in the Conservation Area when the Maasai community was settled east or west of the permanent river ...................... ...
... periods with people settled east or west of the permanent river ...................152 5.3. The proportion of lion daytime resting locations and nighttime locations that occurred in the Conservation Area when the Maasai community was settled east or west of the permanent river ...................... ...
Observations on the diet and habitat of the mountain tapir (Tapirus
... between pollinating birds, bats, and insects, in which plants provide animals with nectar (Ricklefs, 1979). In the mountain tapir, however, a particular nutritional need may be ful®lled by the plant, the seeds of which it successfully disperses. Because populations of the endangered mountain tapir a ...
... between pollinating birds, bats, and insects, in which plants provide animals with nectar (Ricklefs, 1979). In the mountain tapir, however, a particular nutritional need may be ful®lled by the plant, the seeds of which it successfully disperses. Because populations of the endangered mountain tapir a ...
Queensland Wildlife Trade Management Plan for Export
... The relevant provisions under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) came into force on 11 January 2002, following the incorporation of the former Wildlife Protection (Regulation of Exports and Imports) Act 1982. The EPBC Act provides legislative provisions requ ...
... The relevant provisions under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) came into force on 11 January 2002, following the incorporation of the former Wildlife Protection (Regulation of Exports and Imports) Act 1982. The EPBC Act provides legislative provisions requ ...
The Role of Body Size in Complex Food Webs: A Cold - ePIC
... that few, if any, pristine ecosystems remain. This begs the question as to what characterises an undisturbed food web and how human induced disturbances such as habitat destruction, overexploitation, introduction of alien species and climate change might be expected to affect the structure and funct ...
... that few, if any, pristine ecosystems remain. This begs the question as to what characterises an undisturbed food web and how human induced disturbances such as habitat destruction, overexploitation, introduction of alien species and climate change might be expected to affect the structure and funct ...
... complementary hypothesis postulates that invasive species increased their competitive ability from their native range to their introduced range (Blossey and Nötzold, 1995). One explanation for increased aggressiveness is that introduced plants have left their natural herbivores behind in the native ...
MODELING CARNIVORE HABITAT IN THE ROCKY MOUNTAIN
... factors are also of concern. The remaining distribution of these species often includes habitats with lower natural productivity that have escaped human settlement. High temporal variability in food resources often characterizes these areas, increasing chances of population extinction. Despite these ...
... factors are also of concern. The remaining distribution of these species often includes habitats with lower natural productivity that have escaped human settlement. High temporal variability in food resources often characterizes these areas, increasing chances of population extinction. Despite these ...
Habitat Characteristics Influencing Resident and Over
... Among all the guilds of bird species in North America, none have collectively witnessed population declines that rival those exhibited by the suit of species that are dependent upon savannah, prairie, or grassland ecosystems (Knopf 1994, Samson and Knopf 1994, Brawn et al. 2001, Vickery and Herkert ...
... Among all the guilds of bird species in North America, none have collectively witnessed population declines that rival those exhibited by the suit of species that are dependent upon savannah, prairie, or grassland ecosystems (Knopf 1994, Samson and Knopf 1994, Brawn et al. 2001, Vickery and Herkert ...
Arkaroola Protection Area Draft Management Plan 2015
... Directions for management The Arkaroola Protection Act 2012 was established on 26 April 2012 specifically to protect a remote part of outback South Australia known as Arkaroola. The Act established the Arkaroola Protection Area and provides for its protection in perpetuity. The Act prohibits any mi ...
... Directions for management The Arkaroola Protection Act 2012 was established on 26 April 2012 specifically to protect a remote part of outback South Australia known as Arkaroola. The Act established the Arkaroola Protection Area and provides for its protection in perpetuity. The Act prohibits any mi ...
RESEARCH REPORT DNR Fish as Indicators of Lake Habitat Quality
... We need to review the types of perturbations we are looking for before we can make a judgement of a species’ sensitivity to them. Types of perturbations include acidification, eutrophication, macrophyte and algae modifications, chemical pollution, edge modifications and water level control, fish spe ...
... We need to review the types of perturbations we are looking for before we can make a judgement of a species’ sensitivity to them. Types of perturbations include acidification, eutrophication, macrophyte and algae modifications, chemical pollution, edge modifications and water level control, fish spe ...
Bap Twite - Peak District National Park
... National Targets There is no national action plan for twite in the UK. The RSPB, however, has published an internal Species Action Plan for twite. Its objectives are: To maintain the breeding numbers and distribution (based on the 1999 survey) of twite in the UK. In the long term, to recover the dis ...
... National Targets There is no national action plan for twite in the UK. The RSPB, however, has published an internal Species Action Plan for twite. Its objectives are: To maintain the breeding numbers and distribution (based on the 1999 survey) of twite in the UK. In the long term, to recover the dis ...
Plant Diversity Affects Performance of Invasive Thistles in Restored
... ecosystem that are non-consumptive (i.e. aesthetics, recreations, tourism), are difficult to assess, because they are based on individual value systems (Pejchar et al. 2009). A lack of quantifiable evidence that a plant is affecting an ecosystem can make assessing the impacts and effects of restorat ...
... ecosystem that are non-consumptive (i.e. aesthetics, recreations, tourism), are difficult to assess, because they are based on individual value systems (Pejchar et al. 2009). A lack of quantifiable evidence that a plant is affecting an ecosystem can make assessing the impacts and effects of restorat ...
Influence of prairie dogs (Cynomys ludovicianus) on habitat
... impacts on grassland ecosystems by increasing habitat heterogeneity, modifying ecosystem processes, and enhancing regional biodiversity. Prairie dogs can be considered to be ecosystem engineers ( sensu Jones et al., 1994) because they influence the abiotic and biotic characteristics of their habitat ...
... impacts on grassland ecosystems by increasing habitat heterogeneity, modifying ecosystem processes, and enhancing regional biodiversity. Prairie dogs can be considered to be ecosystem engineers ( sensu Jones et al., 1994) because they influence the abiotic and biotic characteristics of their habitat ...
international standards for the practice of ecological restoration
... recovery possible or are appropriate to the circumstances. In addition, the Standards document explores restoration principles, discusses the values that restoration aims to satisfy, and highlights six key concepts essential for achieving high levels of recovery. The Standards reaffirm the use of a ...
... recovery possible or are appropriate to the circumstances. In addition, the Standards document explores restoration principles, discusses the values that restoration aims to satisfy, and highlights six key concepts essential for achieving high levels of recovery. The Standards reaffirm the use of a ...
SPECIES AND HABITAT ASSESSMENTS AND CONSERVATION
... boundaries are echoed within the individual habitat sections that follow. They include: Appalachian/ Blue Ridge Forests – identify and protect a regional system of large habitat blocks; restore linkage of appropriate habitat between large blocks; Southeastern Mixed Forests – enhance protection of Fo ...
... boundaries are echoed within the individual habitat sections that follow. They include: Appalachian/ Blue Ridge Forests – identify and protect a regional system of large habitat blocks; restore linkage of appropriate habitat between large blocks; Southeastern Mixed Forests – enhance protection of Fo ...
COSEWIC Assessment for Grizzly Bear
... overall population during the past 20 years and increasing numbers of records indicating some range expansion in the north, a number of populations in the southern extent of its range in Alberta and southern BC are known to be declining and there are concerns about unsustainable mortality rates ther ...
... overall population during the past 20 years and increasing numbers of records indicating some range expansion in the north, a number of populations in the southern extent of its range in Alberta and southern BC are known to be declining and there are concerns about unsustainable mortality rates ther ...
Fish Conservation and Management Strategy for Alberta
... watersheds, with boundaries aligned to best fit with municipal boundaries and natural regions.5 Regional Plans particular to each Region are in development for approval by Cabinet for implementation. The Land-use Framework also champions environmental values, including the conservation and protectio ...
... watersheds, with boundaries aligned to best fit with municipal boundaries and natural regions.5 Regional Plans particular to each Region are in development for approval by Cabinet for implementation. The Land-use Framework also champions environmental values, including the conservation and protectio ...
2010snail
... Two introduced predatory land snails, Euglandina rosea and Oxychilus alliarius, have been LPSOLFDWHGLQWKHGHFOLQHRIQDWLYH+DZDLLDQDQG3DFL¿FLVODQGODQGVQDLOV:HH[DPLQHGWKH feeding ecology of E. rosea and O. alliariusIRFXVLQJ¿UVWRQSUH\VL]HDQGVSHFLHVSUHIHUHQFHV and second on quan ...
... Two introduced predatory land snails, Euglandina rosea and Oxychilus alliarius, have been LPSOLFDWHGLQWKHGHFOLQHRIQDWLYH+DZDLLDQDQG3DFL¿FLVODQGODQGVQDLOV:HH[DPLQHGWKH feeding ecology of E. rosea and O. alliariusIRFXVLQJ¿UVWRQSUH\VL]HDQGVSHFLHVSUHIHUHQFHV and second on quan ...
2010 Darwin Conference - Australasian Bat Society
... focal macrohabitats, including estuarine, forest, urban and water macrohabitats. Radio-tracking showed similar habitat use to that revealed by acoustic monitoring, with the majority of activity being recorded in forest macrohabitat. Sufficient data were obtained for six C. gouldii individuals to ena ...
... focal macrohabitats, including estuarine, forest, urban and water macrohabitats. Radio-tracking showed similar habitat use to that revealed by acoustic monitoring, with the majority of activity being recorded in forest macrohabitat. Sufficient data were obtained for six C. gouldii individuals to ena ...
Australian Government
... promoting responsible ownership through education and local or state/territory legislation. For feral cats, the focus is on reducing numbers or inhibiting predation through the use of mechanical, chemical or biological methods. Management of stray cats often requires a combination of technical and s ...
... promoting responsible ownership through education and local or state/territory legislation. For feral cats, the focus is on reducing numbers or inhibiting predation through the use of mechanical, chemical or biological methods. Management of stray cats often requires a combination of technical and s ...
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.