Managing conflicts arising from fisheries enhancements based on
... led to considerable conflicts between fisheries agencies and conservation authorities whom often have competing fisheries development and biodiversity agendas (Cowx et al., 2010). Examples of well-established non-native fisheries that threaten local species include smallmouth bass Micropterus dolomi ...
... led to considerable conflicts between fisheries agencies and conservation authorities whom often have competing fisheries development and biodiversity agendas (Cowx et al., 2010). Examples of well-established non-native fisheries that threaten local species include smallmouth bass Micropterus dolomi ...
A Framework for Assessing the Relationship between Trade
... become ever more closely linked through international trade and investment, planners at the national level need to understand and take into account the local effects of powerful macroeconomic forces. This is particularly true in the case of biodiversity, where new investment or increased internation ...
... become ever more closely linked through international trade and investment, planners at the national level need to understand and take into account the local effects of powerful macroeconomic forces. This is particularly true in the case of biodiversity, where new investment or increased internation ...
empirical rules and assembly theory
... unmodified, the drainage has been altered by human activity. There is a dam and reservoir in the headwaters of the main stem of the river (Pillsbury Reservoir). Much of the drainage has been heavily logged, resulting in large-scale erosion of the steep hillsides in the 1960s which in turn filled muc ...
... unmodified, the drainage has been altered by human activity. There is a dam and reservoir in the headwaters of the main stem of the river (Pillsbury Reservoir). Much of the drainage has been heavily logged, resulting in large-scale erosion of the steep hillsides in the 1960s which in turn filled muc ...
SoE 2016 Biodiversity report (PDF - 10.3 MB)
... chapter in the 2011 state of the environment (SoE 2011) report. Components of biodiversity identified for assessment were set in SoE 2011, and SoE 2016 was required to provide updates on these assessments. Current understanding of the state and recent trends of key components of biodiversity are pre ...
... chapter in the 2011 state of the environment (SoE 2011) report. Components of biodiversity identified for assessment were set in SoE 2011, and SoE 2016 was required to provide updates on these assessments. Current understanding of the state and recent trends of key components of biodiversity are pre ...
Habitat isolation and ecological barriers
... in the physical environment, and biogeographic changes (Saunders et al. 1991). C onsidering effects o f fragmentation on different levels o f ecological integrity changes on ecosystem level and changes on population level can be distinguished as well (Kozakiewicz and Szacki 1987). Effects on ecosyst ...
... in the physical environment, and biogeographic changes (Saunders et al. 1991). C onsidering effects o f fragmentation on different levels o f ecological integrity changes on ecosystem level and changes on population level can be distinguished as well (Kozakiewicz and Szacki 1987). Effects on ecosyst ...
Healthy Aquatic Ecosystems
... varying scales, such that an ecosystem can be an individual water body and also a collection of interacting water bodies. But regardless of their scale, these systems share common elements. All have biological, chemical, and physical components that interact and react to one another and to other inf ...
... varying scales, such that an ecosystem can be an individual water body and also a collection of interacting water bodies. But regardless of their scale, these systems share common elements. All have biological, chemical, and physical components that interact and react to one another and to other inf ...
Species-Specific Responses of Carnivores to Human
... whereas that of shrubland decreased from 64.2% to 31.8% [20]. Found today only in small patches, the original habitats of this ecoregion were once home to a great diversity of plants, birds, and mammals, including seven species of mammalian carnivores. Despite the lack of research studies, there is ...
... whereas that of shrubland decreased from 64.2% to 31.8% [20]. Found today only in small patches, the original habitats of this ecoregion were once home to a great diversity of plants, birds, and mammals, including seven species of mammalian carnivores. Despite the lack of research studies, there is ...
Species richness and evenness respond in a
... richness, or number of species in a given area, and evenness, or how relative abundance or biomass is distributed among species (Huston 1994; Purvis and Hector 2000; Magurran 2004). These components are combined in diversity indices (e.g., Shannon’s H¢ and Simpson’s diversity). Evenness indices stan ...
... richness, or number of species in a given area, and evenness, or how relative abundance or biomass is distributed among species (Huston 1994; Purvis and Hector 2000; Magurran 2004). These components are combined in diversity indices (e.g., Shannon’s H¢ and Simpson’s diversity). Evenness indices stan ...
Information Document
... Impacts are the effects or influences that invasive alien species have on various ecological or socio-economic components of island ecosystems and/or the human communities that depend upon island resources. As invasive alien species are harmful organisms by definition, their impacts, discussed in th ...
... Impacts are the effects or influences that invasive alien species have on various ecological or socio-economic components of island ecosystems and/or the human communities that depend upon island resources. As invasive alien species are harmful organisms by definition, their impacts, discussed in th ...
The Population Biology of Invasive Species Ann K. Sakai
... After initial successful colonization, the next stage of invasions is characterized by establishment of a viable, self-sustaining, population. There may be little correlation between traits required for initial colonization and traits needed for establishment. Establishment in a natural community ma ...
... After initial successful colonization, the next stage of invasions is characterized by establishment of a viable, self-sustaining, population. There may be little correlation between traits required for initial colonization and traits needed for establishment. Establishment in a natural community ma ...
12 Terrestrial fauna - The Department of State Development
... localised flooding. These wet conditions were accompanied by significantly cooler temperatures (maximum of 14°C). Typically, wet conditions are ideal for frog species and many reptiles. However, cold temperatures inhibit frog and reptile movement. Consequently, while some frog species were observed ...
... localised flooding. These wet conditions were accompanied by significantly cooler temperatures (maximum of 14°C). Typically, wet conditions are ideal for frog species and many reptiles. However, cold temperatures inhibit frog and reptile movement. Consequently, while some frog species were observed ...
The News Journal of the Dragonfly Society of the
... I must say that as a first timer I really enjoyed the actual meeting, which had a great combination of amateur and professional Odonate enthusiasts with diverse backgrounds accompanied by a laid back collegial atmosphere. I’ve never been to a meeting where there was more of a sense of community. Des ...
... I must say that as a first timer I really enjoyed the actual meeting, which had a great combination of amateur and professional Odonate enthusiasts with diverse backgrounds accompanied by a laid back collegial atmosphere. I’ve never been to a meeting where there was more of a sense of community. Des ...
Reintroducing captive breed species – the effects
... When species are endangered and their habitat is being destroyed due to anthropogenic activities the only option is to capture a part of or in the worst case scenario the whole population of a species and take it into captivity. Today there is room for some 500 species in zoos around the globe, howe ...
... When species are endangered and their habitat is being destroyed due to anthropogenic activities the only option is to capture a part of or in the worst case scenario the whole population of a species and take it into captivity. Today there is room for some 500 species in zoos around the globe, howe ...
DESIGNING MARINE PROTECTED AREA NETWORKS TO
... report by Fernandes et al 20123. These principles are designed to be used in combination with important social, economic and political considerations in marine spatial planning. There are often information gaps and socio-economic, cultural, political and other reasons that can prevent full applicati ...
... report by Fernandes et al 20123. These principles are designed to be used in combination with important social, economic and political considerations in marine spatial planning. There are often information gaps and socio-economic, cultural, political and other reasons that can prevent full applicati ...
Predictors of species sensitivity to fragmentation
... measured population variability for the same length of time for extant and extinct species. For another study, the British island bird populations, controversy about statistical procedures and the interpretation of results exists (Pimm et al. 1988; Tracy and George 1992; Rosenweig and Clark 1994). H ...
... measured population variability for the same length of time for extant and extinct species. For another study, the British island bird populations, controversy about statistical procedures and the interpretation of results exists (Pimm et al. 1988; Tracy and George 1992; Rosenweig and Clark 1994). H ...
Volume 16 No. 1 - International Reptile Conservation Foundation
... The Amphibians and Reptiles of Guana Island Only one species of frog resides on Guana, the Puerto Rican Rainfrog, Eleutherodactylus antillensis. It is small, active mostly at night, and likes humidity. The call sounds like “chew-weep, chewweep,” but males also have a clicking call that they use to w ...
... The Amphibians and Reptiles of Guana Island Only one species of frog resides on Guana, the Puerto Rican Rainfrog, Eleutherodactylus antillensis. It is small, active mostly at night, and likes humidity. The call sounds like “chew-weep, chewweep,” but males also have a clicking call that they use to w ...
Ch 9 Wildlife Biology Management
... • U.S. Endangered Species Act – identifies two classes of at-risk species • endangered: immediate danger of extinction • threatened: at risk of becoming endangered ...
... • U.S. Endangered Species Act – identifies two classes of at-risk species • endangered: immediate danger of extinction • threatened: at risk of becoming endangered ...
Chapter 10 Amphibians
... species are recognized, but many others still remain to be named. At least 230 different species have been identified by us, and the status of more than 45 additional forms remains to be clarified. We believe that more than 300 amphibian species occur on Madagascar. Considering described species onl ...
... species are recognized, but many others still remain to be named. At least 230 different species have been identified by us, and the status of more than 45 additional forms remains to be clarified. We believe that more than 300 amphibian species occur on Madagascar. Considering described species onl ...
Frog Biodiversity and Conservation
... Many amphibian populations naturally cycle between high and low numbers, a feature which makes assessing the conservation status of their populations difficult in the absence of long-term monitoring. Most scientists, however, agree that there is a worldwide decline in frog numbers. Over 30 percent o ...
... Many amphibian populations naturally cycle between high and low numbers, a feature which makes assessing the conservation status of their populations difficult in the absence of long-term monitoring. Most scientists, however, agree that there is a worldwide decline in frog numbers. Over 30 percent o ...
Thompson 2009 - Department of Biology
... examples of rapid evolution in nature, and we would have many more examples if more research programs incorporated the analysis of potential rapid evolution in their observational and experimental designs. Evolutionary studies are therefore not something that can be added on later once the molecular ...
... examples of rapid evolution in nature, and we would have many more examples if more research programs incorporated the analysis of potential rapid evolution in their observational and experimental designs. Evolutionary studies are therefore not something that can be added on later once the molecular ...
Islands as model systems in ecology and evolution
... Some lakes (especially those lacking connections to other lakes, e.g. by way of rivers) provide almost perfect analogues to islands surrounded by water. However, apparent ‘de novo origins’ do not always carry the same implications, since even in the absence of connecting rivers, many lakes are fille ...
... Some lakes (especially those lacking connections to other lakes, e.g. by way of rivers) provide almost perfect analogues to islands surrounded by water. However, apparent ‘de novo origins’ do not always carry the same implications, since even in the absence of connecting rivers, many lakes are fille ...
Scaling-up Trait Variation from Individuals to Ecosystems
... dynamics and competitive ability via its joint effects on attack rate, handling time and interference competition. Interference competition is thought to be mostly stabilizing in natural systems (Arditi et al., 2004; DeLong and Vasseur, 2013), while attack rate is mostly destabilizing (Rosenzweig an ...
... dynamics and competitive ability via its joint effects on attack rate, handling time and interference competition. Interference competition is thought to be mostly stabilizing in natural systems (Arditi et al., 2004; DeLong and Vasseur, 2013), while attack rate is mostly destabilizing (Rosenzweig an ...
The ecology of recovery
... population by necessity includes an assessment of all the cases of non-recoveries, that is, extinctions. These are, however, dealt with elsewhere in this issue (e.g. Benton 2003). The definition of population recovery requires a notion of the temporal dynamics of the population. For this paper we de ...
... population by necessity includes an assessment of all the cases of non-recoveries, that is, extinctions. These are, however, dealt with elsewhere in this issue (e.g. Benton 2003). The definition of population recovery requires a notion of the temporal dynamics of the population. For this paper we de ...
Dowload SFI Landowner`s Manual - Minnesota Logger Education
... forests and to help ensure the future health and viability of those forests. As one of over 200,000 family forest landowners in Minnesota, you play a significant role in the management responsibility for nearly 40% of the state’s forested land. You own your forestland for many reasons, including: en ...
... forests and to help ensure the future health and viability of those forests. As one of over 200,000 family forest landowners in Minnesota, you play a significant role in the management responsibility for nearly 40% of the state’s forested land. You own your forestland for many reasons, including: en ...
Positive Plant Diversity-Soil Stability Relationships are
... cular mycorrhizal fungi (AMF) may be a mechanism for increasing sequestration of carbon (Rillig, 2004; Rillig et al., 2007; Wilson et al., 2009). The interspecific functional dissimilarity may be another mechanism through which below-ground biodiversity drives soil processes (Heemsbergen et al., 200 ...
... cular mycorrhizal fungi (AMF) may be a mechanism for increasing sequestration of carbon (Rillig, 2004; Rillig et al., 2007; Wilson et al., 2009). The interspecific functional dissimilarity may be another mechanism through which below-ground biodiversity drives soil processes (Heemsbergen et al., 200 ...
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.