Ecological subsystems via graph theory: the role of
... comprised only SCCs of size 1. In many of them at least one very large SCC was identified. This is obvious because a network made by only SCCs of size 1 does not have cycles (acyclic network), and matter, once entered in the system, would exit without being circulated, an ecologically unrealistic si ...
... comprised only SCCs of size 1. In many of them at least one very large SCC was identified. This is obvious because a network made by only SCCs of size 1 does not have cycles (acyclic network), and matter, once entered in the system, would exit without being circulated, an ecologically unrealistic si ...
Harbour Porpoise _Pacific Ocean (Phocoena
... Any indigenous species, subspecies, variety, or geographically or genetically distinct population of wild fauna and flora. A species that no longer exists. A species no longer existing in the wild in Canada, but occurring elsewhere. A species facing imminent extirpation or extinction. A species like ...
... Any indigenous species, subspecies, variety, or geographically or genetically distinct population of wild fauna and flora. A species that no longer exists. A species no longer existing in the wild in Canada, but occurring elsewhere. A species facing imminent extirpation or extinction. A species like ...
Bats and insect pest control: a review
... al. 1992, Simmons et al. 2008). In particular, some species from the fossil site of Messel (Germany) used to prey on Lepidoptera (Richter 1993). Insect pests are a major problem in agriculture and forestry (Hill 1983, 1987, 2008, Pollini 2013). Arthropods destroy between 18% and 26% of the annual pr ...
... al. 1992, Simmons et al. 2008). In particular, some species from the fossil site of Messel (Germany) used to prey on Lepidoptera (Richter 1993). Insect pests are a major problem in agriculture and forestry (Hill 1983, 1987, 2008, Pollini 2013). Arthropods destroy between 18% and 26% of the annual pr ...
Halting the illegal trade of cites species from world heritage
... universal values that underpinned their recognition as part of the world’s heritage, with many sites being placed on the World Heritage in Danger list over recent years. For these ‘jewels in the crown’ of our planet’s natural heritage to retain their World Heritage status, and to ensure the survival ...
... universal values that underpinned their recognition as part of the world’s heritage, with many sites being placed on the World Heritage in Danger list over recent years. For these ‘jewels in the crown’ of our planet’s natural heritage to retain their World Heritage status, and to ensure the survival ...
OUR GARDENS CAN BE GOOD FOR NATURE AND THAT`S GOOD
... gain big windfalls by building new homes in their gardens. Housing densities are ramped up while gardens are minimised or eliminated in new developments. The green spaces within cities are gradually eroded by new development of all kinds. The same is true of the wider countryside. Each year, the tot ...
... gain big windfalls by building new homes in their gardens. Housing densities are ramped up while gardens are minimised or eliminated in new developments. The green spaces within cities are gradually eroded by new development of all kinds. The same is true of the wider countryside. Each year, the tot ...
ecological and reproductive character displacement
... Simply observing one of these patterns, however, is not sufficient to conclude that character displacement is its cause, and Schluter and McPhail (1992) and Waage (1979) describe alternatives that must be considered and ruled out. Put briefly, the character must be relevant to the process being cons ...
... Simply observing one of these patterns, however, is not sufficient to conclude that character displacement is its cause, and Schluter and McPhail (1992) and Waage (1979) describe alternatives that must be considered and ruled out. Put briefly, the character must be relevant to the process being cons ...
American Woodcock: Habitat Best Management
... of demonstration areas, and monitor the response of woodcock to habitat treatments. Fifty-nine other species have been identified by New England States that require young forest and shrubland habitats of both deciduous and coniferous forest types for survival. All State Wildlife Action Plans can be ...
... of demonstration areas, and monitor the response of woodcock to habitat treatments. Fifty-nine other species have been identified by New England States that require young forest and shrubland habitats of both deciduous and coniferous forest types for survival. All State Wildlife Action Plans can be ...
Invasive alien species in Switzerland
... Invasive alien species (IAS) are increasingly recognized as one of the major threats to biodiversity. All signatories to the Convention on Biological Diversity (CBD), including Switzerland, have agreed to prevent the introduction of, control or eradicate those alien species which threaten ecosystems ...
... Invasive alien species (IAS) are increasingly recognized as one of the major threats to biodiversity. All signatories to the Convention on Biological Diversity (CBD), including Switzerland, have agreed to prevent the introduction of, control or eradicate those alien species which threaten ecosystems ...
Linkages in the Landscape
... seen as a concern at many levels of jurisdiction, from local to international. Historically, protected areas were only concerned with protection; now there is also a need to focus on conservation, sustainable use and ecological restoration. And where previously most protected areas were strictly and ...
... seen as a concern at many levels of jurisdiction, from local to international. Historically, protected areas were only concerned with protection; now there is also a need to focus on conservation, sustainable use and ecological restoration. And where previously most protected areas were strictly and ...
Aligning molecular studies of mycorrhizal fungal diversity
... diversity and productivity, thus providing a rationale for characterizing AMF diversity in natural ecosystems. Consequently, a large number of molecular studies on AMF community composition are currently underway. Most published studies, at best, only address species or genera-level resolution. Howe ...
... diversity and productivity, thus providing a rationale for characterizing AMF diversity in natural ecosystems. Consequently, a large number of molecular studies on AMF community composition are currently underway. Most published studies, at best, only address species or genera-level resolution. Howe ...
Energetic Algae (`EnAlgae`)
... addition, there may be increased competition for nutrients between seaweed farms in close proximity to one another, and between cultivated and wild seaweed stocks. Nutrient capacity will therefore be a key issue for seaweed cultivation, as a consistent input of nutrients is required for growth. In C ...
... addition, there may be increased competition for nutrients between seaweed farms in close proximity to one another, and between cultivated and wild seaweed stocks. Nutrient capacity will therefore be a key issue for seaweed cultivation, as a consistent input of nutrients is required for growth. In C ...
Integrative and Comparative Biology
... related to conservation. The slower than expected integration of conservation and physiology is likely the result of multiple factors, including prior lack of an integrated framework (Coristine et al. 2014), methodological issues related to studying physiology in populations of conservation concern ...
... related to conservation. The slower than expected integration of conservation and physiology is likely the result of multiple factors, including prior lack of an integrated framework (Coristine et al. 2014), methodological issues related to studying physiology in populations of conservation concern ...
Alabama 4-H Wildlife Habitat Evaluation Program State Manual
... the condition to landowners and other interested individuals. Once the inventory is complete, a decision must be made as to which wildlife management practices should be applied to improve habitat for certain wildlife species. The on-site management recommendation activity provides experience with t ...
... the condition to landowners and other interested individuals. Once the inventory is complete, a decision must be made as to which wildlife management practices should be applied to improve habitat for certain wildlife species. The on-site management recommendation activity provides experience with t ...
vernal pool fairy shrimp - Solano County Water Agency
... absence of the vernal pool fairy shrimp in certain habitats is explained by competitive exclusion by other fairy shrimp (Helm 1998, Eriksen and Belk 1999). While not typically in the same pools, the vernal pool fairy shrimp occupies the same vernal pool habitats as the delta green ground beetle, and ...
... absence of the vernal pool fairy shrimp in certain habitats is explained by competitive exclusion by other fairy shrimp (Helm 1998, Eriksen and Belk 1999). While not typically in the same pools, the vernal pool fairy shrimp occupies the same vernal pool habitats as the delta green ground beetle, and ...
Christmas Island National Park Draft Management Plan 2012-2022
... and does so in accordance with management plans that are also prepared under the Act. This plan sets outs how the park and its natural and cultural values will be managed, protected and conserved for a period of ten years. The park is assigned by this plan to International Union for Conservation of ...
... and does so in accordance with management plans that are also prepared under the Act. This plan sets outs how the park and its natural and cultural values will be managed, protected and conserved for a period of ten years. The park is assigned by this plan to International Union for Conservation of ...
habitat management guidelines for amphibians and
... The goal of this book is to use the best science available to produce amphibian and reptile habitat management and conservation guidelines that are easily understood and practical for resource managers and private landowners to integrate with other management objectives on the landscape. The guideli ...
... The goal of this book is to use the best science available to produce amphibian and reptile habitat management and conservation guidelines that are easily understood and practical for resource managers and private landowners to integrate with other management objectives on the landscape. The guideli ...
Harvestmen and Pseudoscorpions - Digital Commons @ Michigan
... night. I have been constantly amazed at the number of species that are preferentially nocturnal in their activities, a concept that day-active humans like myself often fail to embrace. I am convinced that unless we develop and use a good sampling protocol for dusk and nightfall sampling we will not ...
... night. I have been constantly amazed at the number of species that are preferentially nocturnal in their activities, a concept that day-active humans like myself often fail to embrace. I am convinced that unless we develop and use a good sampling protocol for dusk and nightfall sampling we will not ...
3 Biological Resources Limiting Factors
... The distribution and abundance of aquatic animals and invertebrates are determined by their distinct preferences and tolerances for specific habitat conditions. As discussed above, the conditions of a stream at any point along the stream are determined by the conditions upstream of that point; there ...
... The distribution and abundance of aquatic animals and invertebrates are determined by their distinct preferences and tolerances for specific habitat conditions. As discussed above, the conditions of a stream at any point along the stream are determined by the conditions upstream of that point; there ...
Co-declining mammals and dung beetles: an impending ecological
... beetle collections across parts of Africa and the Mediterranean provide circumstantial evidence of strong, linked changes in mammal-dung beetle assemblages, typically within a context of broader land-use change. The partial replacement of native Mediterranean mammals by livestock after human coloniz ...
... beetle collections across parts of Africa and the Mediterranean provide circumstantial evidence of strong, linked changes in mammal-dung beetle assemblages, typically within a context of broader land-use change. The partial replacement of native Mediterranean mammals by livestock after human coloniz ...
Flammulated Owl (Otus flammeolus)
... The Flammulated Owl breeds from the southern interior of British Columbia, south through the mountains of western North America to Veracruz and Guerrero in southern Mexico; in winter it is found from central Mexico south and east to El Salvador. In Canada it occurs as a summer resident and breeder w ...
... The Flammulated Owl breeds from the southern interior of British Columbia, south through the mountains of western North America to Veracruz and Guerrero in southern Mexico; in winter it is found from central Mexico south and east to El Salvador. In Canada it occurs as a summer resident and breeder w ...
Literature Review of Bioeconomic Impacts of Pollutants Affecting
... examine optimal levels of pollution abatement. This report provides a literature review of studies that may help inform future bioeconomic modelling of pollution in NSW marine parks. Due to the limited number of Australian studies directly related to this topic (and most of those are focussed on ...
... examine optimal levels of pollution abatement. This report provides a literature review of studies that may help inform future bioeconomic modelling of pollution in NSW marine parks. Due to the limited number of Australian studies directly related to this topic (and most of those are focussed on ...
overview of the management methods adopted for the control of
... Mink are cute animals. Many people are horrified at the thought of killing these animals. This poses an ethical dilemma. Sometimes certain values must be compromised in order to preserve other values such as the conservation of the environment. Whatever ones’ views on this issue, there is one thing ...
... Mink are cute animals. Many people are horrified at the thought of killing these animals. This poses an ethical dilemma. Sometimes certain values must be compromised in order to preserve other values such as the conservation of the environment. Whatever ones’ views on this issue, there is one thing ...
Co-declining mammals and dung beetles: an impending ecological
... beetle collections across parts of Africa and the Mediterranean provide circumstantial evidence of strong, linked changes in mammal-dung beetle assemblages, typically within a context of broader land-use change. The partial replacement of native Mediterranean mammals by livestock after human coloniz ...
... beetle collections across parts of Africa and the Mediterranean provide circumstantial evidence of strong, linked changes in mammal-dung beetle assemblages, typically within a context of broader land-use change. The partial replacement of native Mediterranean mammals by livestock after human coloniz ...
American Marten Conservation Strategy for the Huron
... throughout the state (Baker 1983). With the rapid increase in human population, and the resulting timber harvest and wildfires, much of the state was deforested by the early 1900's (Brewer 1991). Human population increased from 8,765 in 1820 to 398,000 in 1850. Timber harvest peaked in 1890 and by 1 ...
... throughout the state (Baker 1983). With the rapid increase in human population, and the resulting timber harvest and wildfires, much of the state was deforested by the early 1900's (Brewer 1991). Human population increased from 8,765 in 1820 to 398,000 in 1850. Timber harvest peaked in 1890 and by 1 ...
Tuart Forest National Park - Department of Parks and Wildlife
... of WA. The best known home to the tallest and largest tuart trees and the largest remaining/southernmost tall woodland tuarts is Tuart Forest National Park. However, most of the original extent of tuart in WA has been largely cleared for agriculture or housing, and tuart trees are under threat even ...
... of WA. The best known home to the tallest and largest tuart trees and the largest remaining/southernmost tall woodland tuarts is Tuart Forest National Park. However, most of the original extent of tuart in WA has been largely cleared for agriculture or housing, and tuart trees are under threat even ...
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.