Environmental filtering of crustacean zooplankton
... To test the paradigm that large-bodied zooplankton species dominate in fishless lakes, we evaluated crustacean zooplankton composition of 53 fishless boreal lakes across a broad geographic scale (north-west Saskatchewan, Canada) in relation to contemporary environmental factors. Lake productivity, a ...
... To test the paradigm that large-bodied zooplankton species dominate in fishless lakes, we evaluated crustacean zooplankton composition of 53 fishless boreal lakes across a broad geographic scale (north-west Saskatchewan, Canada) in relation to contemporary environmental factors. Lake productivity, a ...
Yellingbo Nature Conservation Reserve
... Land (Reserves) Act is relevant to the management of certain areas of the reserve. In 1977, the LCC recommended that an area of 160 ha be permanently reserved for wildlife conservation purposes (LCC 1977). In its 1994 review of the Melbourne Area District 2 (LCC 1994), the LCC recommended the area r ...
... Land (Reserves) Act is relevant to the management of certain areas of the reserve. In 1977, the LCC recommended that an area of 160 ha be permanently reserved for wildlife conservation purposes (LCC 1977). In its 1994 review of the Melbourne Area District 2 (LCC 1994), the LCC recommended the area r ...
A related threat is how climate change will influence the
... with parent clones As UC Botanic Garden and the Presidio Nursery produces clones from the selfed seedlings, one practical objective for management should to create multiple populations within the Presidio containing mixes of parent and seedling clones. Another will be discussed under potential resea ...
... with parent clones As UC Botanic Garden and the Presidio Nursery produces clones from the selfed seedlings, one practical objective for management should to create multiple populations within the Presidio containing mixes of parent and seedling clones. Another will be discussed under potential resea ...
Ch 54 - Houston ISD
... • Dominant species are those that are most abundant or have the highest biomass • Biomass is the total mass of all individuals in a population • Dominant species exert powerful control over the occurrence and distribution of other species ...
... • Dominant species are those that are most abundant or have the highest biomass • Biomass is the total mass of all individuals in a population • Dominant species exert powerful control over the occurrence and distribution of other species ...
54_Lecture_Presentation - APBiology2015-2016
... • Dominant species are those that are most abundant or have the highest biomass • Biomass is the total mass of all individuals in a population • Dominant species exert powerful control over the occurrence and distribution of other species ...
... • Dominant species are those that are most abundant or have the highest biomass • Biomass is the total mass of all individuals in a population • Dominant species exert powerful control over the occurrence and distribution of other species ...
Chapter 54
... • Dominant species are those that are most abundant or have the highest biomass • Biomass is the total mass of all individuals in a population • Dominant species exert powerful control over the occurrence and distribution of other species ...
... • Dominant species are those that are most abundant or have the highest biomass • Biomass is the total mass of all individuals in a population • Dominant species exert powerful control over the occurrence and distribution of other species ...
Habitat related differences in the survivorship and
... was intermediate, with a mean of 37 % . Presence of conspecific adults did not significantly influence survivorship of juveniles in any habitat. Cause of mortality in this experiment is unknown and warrants detailed investigation. Implications of these results in the interpretation of the impact of ...
... was intermediate, with a mean of 37 % . Presence of conspecific adults did not significantly influence survivorship of juveniles in any habitat. Cause of mortality in this experiment is unknown and warrants detailed investigation. Implications of these results in the interpretation of the impact of ...
30 years of the endangered species act
... 200 to 300 Aleutian geese. Buldir was Many private landowners on the Califorone of few remaining islands with no nia coast and in the Sacramento and San foxes and a remnant goose population. Joaquin valleys manage their lands to So serious was the plight of the subspe- provide wintering habitat for ...
... 200 to 300 Aleutian geese. Buldir was Many private landowners on the Califorone of few remaining islands with no nia coast and in the Sacramento and San foxes and a remnant goose population. Joaquin valleys manage their lands to So serious was the plight of the subspe- provide wintering habitat for ...
Patterns of trophic niche divergence between invasive and native
... © 2015 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original ...
... © 2015 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original ...
experimental ecology of food webs: complex systems in temporary
... important components of models that successfully predict the limits of productivity and the efficiency of transfer of energy and nutrients through ecosystems. Theoretical ecologists study the nature of food webs by asking such general questions as: What limits the length of food chains? What limits ...
... important components of models that successfully predict the limits of productivity and the efficiency of transfer of energy and nutrients through ecosystems. Theoretical ecologists study the nature of food webs by asking such general questions as: What limits the length of food chains? What limits ...
Tropical tadpole assemblages: which factors affect their structure
... tadpole assemblages? In this review, we explore these questions and recognize some trends regarding the factors influencing tropical tadpole assemblages. We can recognize at least nine major trends regarding the distribution and structure of tropical tadpole assemblages: (1) stream size and microhab ...
... tadpole assemblages? In this review, we explore these questions and recognize some trends regarding the factors influencing tropical tadpole assemblages. We can recognize at least nine major trends regarding the distribution and structure of tropical tadpole assemblages: (1) stream size and microhab ...
Coastal non-floodplain sand lakes
... Coastal dune lakes within Queensland are diverse in size, form, depth and degree of permanency (that is, seasonally drying to permanent). Given that they occur from the tip of Cape York Peninsula to New South Wales, and beyond, a diverse range of flora and fauna species are supported by these habita ...
... Coastal dune lakes within Queensland are diverse in size, form, depth and degree of permanency (that is, seasonally drying to permanent). Given that they occur from the tip of Cape York Peninsula to New South Wales, and beyond, a diverse range of flora and fauna species are supported by these habita ...
Zoning as a means of mitigating conflicts with large
... mitigated, are too expensive to mitigate on the required scale, cannot be moved, or are given political priority over large carnivores. Here, the option would be to create zones where carnivores are not allowed to reach high population levels, even though they otherwise might have been able to occur ...
... mitigated, are too expensive to mitigate on the required scale, cannot be moved, or are given political priority over large carnivores. Here, the option would be to create zones where carnivores are not allowed to reach high population levels, even though they otherwise might have been able to occur ...
PP Chapter 21 Text
... Copyright © 2007 Pearson Education, Inc., publishing as Pearson Addison-Wesley ...
... Copyright © 2007 Pearson Education, Inc., publishing as Pearson Addison-Wesley ...
Ecosystems and Environment
... Copyright © 2007 Pearson Education, Inc., publishing as Pearson Addison-Wesley ...
... Copyright © 2007 Pearson Education, Inc., publishing as Pearson Addison-Wesley ...
Invasive alien species in Switzerland. Factsheets
... Feeds on water plants from the surface; its long neck allows it to take submerged plants from the bottom of shallow water (up to 1.07 m deep). It also grazes on meadows. Lakes with shallow plant-rich areas are the preferred habitat. It can reach high densities, when fed by humans all year round. Nor ...
... Feeds on water plants from the surface; its long neck allows it to take submerged plants from the bottom of shallow water (up to 1.07 m deep). It also grazes on meadows. Lakes with shallow plant-rich areas are the preferred habitat. It can reach high densities, when fed by humans all year round. Nor ...
Common Name (Scientific name)
... densities in shrublands which are only found in areas surrounding the Preserve. These sites could serve as source populations for forest and woodlands in the Preserve, but the lack of integrade areas between these habitat types suggests that Woodrat populations may not be high. Narrow north-facing c ...
... densities in shrublands which are only found in areas surrounding the Preserve. These sites could serve as source populations for forest and woodlands in the Preserve, but the lack of integrade areas between these habitat types suggests that Woodrat populations may not be high. Narrow north-facing c ...
Introduction Poaceae (R.Br.) Barnh. is the fourth
... cultivated since millennia. Sugarcane, the main source of sugar around the world also belongs to the family Poaceae. In fact, human civilization developed only after successful cultivation of cereal and fodder grasses of various kinds. Apart from food and fodder, several grasses are used for extract ...
... cultivated since millennia. Sugarcane, the main source of sugar around the world also belongs to the family Poaceae. In fact, human civilization developed only after successful cultivation of cereal and fodder grasses of various kinds. Apart from food and fodder, several grasses are used for extract ...
ppt
... 1. Origin of “diversity” (actually S) within lineages For example, why do some lineages contain more species than others? This is a macroevolutionary question; relevant processes are speciation & extinction (therefore, including all the processes that influence speciation & extinction rates) Wheneve ...
... 1. Origin of “diversity” (actually S) within lineages For example, why do some lineages contain more species than others? This is a macroevolutionary question; relevant processes are speciation & extinction (therefore, including all the processes that influence speciation & extinction rates) Wheneve ...
Long-term dynamics of three benthic Ampelisca (Crustacea
... Appendix 1 and Fig. 1b,c illustrate the way that this Fig. 1b. It depends on a ‘pollution rate‘ ( p) and on the parameter is used in the model. The pollutant is species. The pollution rate characterises the presence assumed to decrease exponentially with time (Fig. 1c). and the concentration of hydr ...
... Appendix 1 and Fig. 1b,c illustrate the way that this Fig. 1b. It depends on a ‘pollution rate‘ ( p) and on the parameter is used in the model. The pollutant is species. The pollution rate characterises the presence assumed to decrease exponentially with time (Fig. 1c). and the concentration of hydr ...
pdf document, 1.67 mb - Society for Tropical Ecology
... the world is changing fast. Change is normal, change is necessary, there is no doubt about that and as ecologists we are aware of that. But, and there is a big “BUT”, the speed, the dimensions and the quality of recent change are worrying. Ecosystems and species are disappearing. Natural and traditi ...
... the world is changing fast. Change is normal, change is necessary, there is no doubt about that and as ecologists we are aware of that. But, and there is a big “BUT”, the speed, the dimensions and the quality of recent change are worrying. Ecosystems and species are disappearing. Natural and traditi ...
Evidence for interspecific interactions in the ectoparasite infracommunity of a wild mammal
... sengi ID nested within site was added as the random effect for all models. GLMMs were run for all ectoparasite taxa exceeding a prevalence of 10 %. Posthoc comparisons were carried out using the least significant difference (LSD). However, few significant effects were found for prevalence and those ...
... sengi ID nested within site was added as the random effect for all models. GLMMs were run for all ectoparasite taxa exceeding a prevalence of 10 %. Posthoc comparisons were carried out using the least significant difference (LSD). However, few significant effects were found for prevalence and those ...
Nutrient enrichment homogenizes lake benthic assemblages at local and regional scales I D
... variables to the multiple regression analyses in conjunction with each measure of nutrient enrichment in the maximal model. We used the number of lakes connected directly to the sampled lakes as our measure of lake connectivity. In addition, the mean depth of sampling was incorporated into the analy ...
... variables to the multiple regression analyses in conjunction with each measure of nutrient enrichment in the maximal model. We used the number of lakes connected directly to the sampled lakes as our measure of lake connectivity. In addition, the mean depth of sampling was incorporated into the analy ...
Plan of Management - Ministry of Environment and Energy
... in the west of the central part of the Maldives (Figure 1). The atoll is approximately 1,200 km2 in area and is approximately 63 km long (4°48’S to 5°22’N) and 38 km at its widest point (72°48’E to 73°11’E). The atoll is situated just north of the Kashidhoo Kandhoo channel that geographically divide ...
... in the west of the central part of the Maldives (Figure 1). The atoll is approximately 1,200 km2 in area and is approximately 63 km long (4°48’S to 5°22’N) and 38 km at its widest point (72°48’E to 73°11’E). The atoll is situated just north of the Kashidhoo Kandhoo channel that geographically divide ...
Status of the Black-throated Green Warbler in Alberta
... areas. This report summarizes available information on the Black-throated Green Warbler, as a step towards updating the status of this species in the province. The Black-throated Green Warbler is a neotropical migrant that breeds in the Boreal and Foothills regions of Alberta. The Black-throated Gre ...
... areas. This report summarizes available information on the Black-throated Green Warbler, as a step towards updating the status of this species in the province. The Black-throated Green Warbler is a neotropical migrant that breeds in the Boreal and Foothills regions of Alberta. The Black-throated Gre ...
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.