Sonoran Desert Tortoise Natural History
... steeper topography (FWS 2010). However, the impact of livestock grazing may be more significant lower on slopes or within dispersal corridors between mountains or hillsides (FWS 2010). Mortality from crushing may also occur, however the results of a study conducted by Balph and Malecheck (1985) conc ...
... steeper topography (FWS 2010). However, the impact of livestock grazing may be more significant lower on slopes or within dispersal corridors between mountains or hillsides (FWS 2010). Mortality from crushing may also occur, however the results of a study conducted by Balph and Malecheck (1985) conc ...
3 Biological Resources Limiting Factors
... alter the system beyond the range of natural variation to which native organisms are adapted, resulting in decreases or limits in habitats, components, or processes that maintain native species. The Interior Columbia Basin Ecosystem Management Project (ICBEMP) assessment concluded that development o ...
... alter the system beyond the range of natural variation to which native organisms are adapted, resulting in decreases or limits in habitats, components, or processes that maintain native species. The Interior Columbia Basin Ecosystem Management Project (ICBEMP) assessment concluded that development o ...
ExamView Pro - Chapter 20.bnk
... b. Predict the relative numbers of herbs, shrubs, and trees and the total number of plant species that you would expect to see 100 years after abandonment of the field. ANS: a. The following are some valid conclusions: (1) The total number of plant species present in the field increased over the 40- ...
... b. Predict the relative numbers of herbs, shrubs, and trees and the total number of plant species that you would expect to see 100 years after abandonment of the field. ANS: a. The following are some valid conclusions: (1) The total number of plant species present in the field increased over the 40- ...
Risk analysis of the fox squirrel Sciurus niger
... The most likely entry pathway of fox squirrel in Belgium is escape or release from captive breeding. The prohibition of fox squirrel importation, trade and holding could therefore be considered as an efficient measure for reducing the risk of entry to an acceptable level. As a transitional measure, ...
... The most likely entry pathway of fox squirrel in Belgium is escape or release from captive breeding. The prohibition of fox squirrel importation, trade and holding could therefore be considered as an efficient measure for reducing the risk of entry to an acceptable level. As a transitional measure, ...
Northern Plains Grassland - accessible version
... uninteresting and unattractive, as ‘vacant’ land, because of their lack of trees. Their conservation importance, and legally protected status as native vegetation are often ignored. ...
... uninteresting and unattractive, as ‘vacant’ land, because of their lack of trees. Their conservation importance, and legally protected status as native vegetation are often ignored. ...
UNCORRECTED PROOF Frog community responses to recent
... Zhoushan, Daishan, Liuheng, Taohua, Xiushan, Xiashi, Cezi, Fodu and Putuoshan. Zhoushan was excluded from survey because the main sites invaded by bullfrogs (Li et al., 2006) had been destroyed due to urban development and no bullfrogs could be found there. Frogs were surveyed on the remaining eight ...
... Zhoushan, Daishan, Liuheng, Taohua, Xiushan, Xiashi, Cezi, Fodu and Putuoshan. Zhoushan was excluded from survey because the main sites invaded by bullfrogs (Li et al., 2006) had been destroyed due to urban development and no bullfrogs could be found there. Frogs were surveyed on the remaining eight ...
Interactions between Micro- and Macroparasites Predict
... For each parasite or infectious disease reported from a wild primate population, the type of parasite was recorded in the database (virus, protozoan, fungus, arthropod, helminth, bacterium), along with parasite genus and species names, host genus and species names (later revised according to Corbet ...
... For each parasite or infectious disease reported from a wild primate population, the type of parasite was recorded in the database (virus, protozoan, fungus, arthropod, helminth, bacterium), along with parasite genus and species names, host genus and species names (later revised according to Corbet ...
Fragmentation in the Boreal Forest and Possible Effects on
... in Canada’s boreal forests. The authors demonstrate that concerns about habitat fragmentation have a basis in ecological theory and are supported by many field studies. On the other hand, current information is generally not adequate to support quantification of fragmentation effects on wildlife pop ...
... in Canada’s boreal forests. The authors demonstrate that concerns about habitat fragmentation have a basis in ecological theory and are supported by many field studies. On the other hand, current information is generally not adequate to support quantification of fragmentation effects on wildlife pop ...
Functional traits, convergent evolution, and periodic tables of niches
... methods for a niche classification scheme. We would argue that ecologists and natural resource managers, in fact, have already applied various niche classification schemes to natural resource management and environmental assessment. Ecologists frequently categorise species into functional groups bas ...
... methods for a niche classification scheme. We would argue that ecologists and natural resource managers, in fact, have already applied various niche classification schemes to natural resource management and environmental assessment. Ecologists frequently categorise species into functional groups bas ...
UNIVERSITY OF CALGARY Direct, indirect and predator
... Justin Pitt for diligent planning and collection of elk telemetry data, Dr. Mark Boyce for his guidance and wisdom, Mike Alexander for collecting and sharing cattle telemetry data and assisting me with the planning and logistics of portions of my research, Dr. Alessandro Massollo, Christina Semeniuk ...
... Justin Pitt for diligent planning and collection of elk telemetry data, Dr. Mark Boyce for his guidance and wisdom, Mike Alexander for collecting and sharing cattle telemetry data and assisting me with the planning and logistics of portions of my research, Dr. Alessandro Massollo, Christina Semeniuk ...
The Rise of the Mesopredator
... are relaxed, as they most commonly are in fragmented landscapes, the setting is ideal for the explosive growth of mesopredator populations. A fundamental challenge in demonstrating mesopredator release is ruling out alternative explanations for mesopredator overabundance, such as the habitat changes ...
... are relaxed, as they most commonly are in fragmented landscapes, the setting is ideal for the explosive growth of mesopredator populations. A fundamental challenge in demonstrating mesopredator release is ruling out alternative explanations for mesopredator overabundance, such as the habitat changes ...
Crossfertilizing aquatic and terrestrial research to understand
... experimentation25 and that may experience high predation rates. In contrast, risk effects are less studied where spatial structure (patchiness) is less definable (e.g., pelagic marine systems26,27 ) or where the prey assemblage is composed of large-bodied marine mesopredators or herbivores that, per ...
... experimentation25 and that may experience high predation rates. In contrast, risk effects are less studied where spatial structure (patchiness) is less definable (e.g., pelagic marine systems26,27 ) or where the prey assemblage is composed of large-bodied marine mesopredators or herbivores that, per ...
A literature review of urban effects on lowland heaths and their wildlife
... Studies across a range of bird species have shown that effects from human disturbance can be both indirect and complex. Effects can include restriction of nest site choice, reduced breeding success, changes in population breeding density and composition of breeding communities, and lower foraging ra ...
... Studies across a range of bird species have shown that effects from human disturbance can be both indirect and complex. Effects can include restriction of nest site choice, reduced breeding success, changes in population breeding density and composition of breeding communities, and lower foraging ra ...
Pink-footed Shearwater - Registre public des espèces en péril
... either solitary or gregarious and often associates with other shearwaters throughout its range, especially Sooty (Puffinus griseus) and Buller’s Shearwaters (P. bulleri). Population sizes and trends The breeding population of the Pink-footed Shearwater, based on rough estimates of the number of burr ...
... either solitary or gregarious and often associates with other shearwaters throughout its range, especially Sooty (Puffinus griseus) and Buller’s Shearwaters (P. bulleri). Population sizes and trends The breeding population of the Pink-footed Shearwater, based on rough estimates of the number of burr ...
Construction and validation of food webs using logic
... plausible and testable food webs from ecological census data. Many of the learned trophic links were corroborated by the literature: in particular, links ascribed with high probability by machine learning corresponded with those having multiple references in the literature. In some cases, previously ...
... plausible and testable food webs from ecological census data. Many of the learned trophic links were corroborated by the literature: in particular, links ascribed with high probability by machine learning corresponded with those having multiple references in the literature. In some cases, previously ...
Campbell_LUCID_WP18
... Farming on the slopes of Mt. Kilimanjaro began in the 1930’s and immigration of farmers from other areas of Kenya, particularly since independence, has resulted in cultivation of large tracts suitable for rain fed agriculture and for irrigation (Campbell et al. 2000). After World War II, some of the ...
... Farming on the slopes of Mt. Kilimanjaro began in the 1930’s and immigration of farmers from other areas of Kenya, particularly since independence, has resulted in cultivation of large tracts suitable for rain fed agriculture and for irrigation (Campbell et al. 2000). After World War II, some of the ...
Grain sowing aimed at wild rabbit Oryctolagus cuniculus L
... cross-passes with a deep plough. Here, cereal sowing acts to reduce recolonization by thickets (Muslera & Ratera, 1993) and increases the availability of high-quality food (fodder during winter and spring, and grain in summer) for rabbits, big game, and livestock. Cereals (barley and oat seed) were ...
... cross-passes with a deep plough. Here, cereal sowing acts to reduce recolonization by thickets (Muslera & Ratera, 1993) and increases the availability of high-quality food (fodder during winter and spring, and grain in summer) for rabbits, big game, and livestock. Cereals (barley and oat seed) were ...
Zoning as a means of mitigating conflicts with large
... free of conflict within their borders. In many regions, people live, farm, graze livestock, gather forest resources and hunt game within national parks and nature reserves (Khan 1995; Warren 1998). Even those carnivores that are found within protected areas may not be immune from what happens beyond ...
... free of conflict within their borders. In many regions, people live, farm, graze livestock, gather forest resources and hunt game within national parks and nature reserves (Khan 1995; Warren 1998). Even those carnivores that are found within protected areas may not be immune from what happens beyond ...
PRIMARY PRODUCTION AND ENERGY FLOW
... z Rate of Primary Production – amount of energy fixed over a given period of time ...
... z Rate of Primary Production – amount of energy fixed over a given period of time ...
Field Guide to Aquatic Invasive Species
... (e.g., fishing or scuba gear). This plant material can give rise to new plants and populations by multiplying vegetatively. In addition, because Azolla lives in symbiosis with blue-green alga enabling nitrogen fixation at substantial rates, it is applied in many parts of the world as a biofertilizer ...
... (e.g., fishing or scuba gear). This plant material can give rise to new plants and populations by multiplying vegetatively. In addition, because Azolla lives in symbiosis with blue-green alga enabling nitrogen fixation at substantial rates, it is applied in many parts of the world as a biofertilizer ...
Derrick Coffee - East Sussex County Council
... therefore ignoring the ecosystem and wider valley systems as a whole? (3.2.6) 2. What degree of certainty can we have over the success of mitigation measures? Is it anticipated that the success will be variable? (General) 3. Does the impact on dormice being ‘mitigated to a certain extent’ suggest th ...
... therefore ignoring the ecosystem and wider valley systems as a whole? (3.2.6) 2. What degree of certainty can we have over the success of mitigation measures? Is it anticipated that the success will be variable? (General) 3. Does the impact on dormice being ‘mitigated to a certain extent’ suggest th ...
Bathurst 2011 - Australasian Wildlife Management Society
... feral pigs (sus scrofa)....................................................................................61 hydatid disease, caused by the canine tapeworm echinococcus ...
... feral pigs (sus scrofa)....................................................................................61 hydatid disease, caused by the canine tapeworm echinococcus ...
Role of Biotic Interactions in a Small Mammal Assemblage in
... park contains semiarid thorn scrub vegetation and isolated fog forests (on coastal mountain ridges), which have been protected from grazing and disturbance since 1941. The well-known flora of the lower elevational scrub zone (Muiioz and Pisano 1947, Muiioz 1985, Hoffmann 1989, GutiCrrez et al. 1993a ...
... park contains semiarid thorn scrub vegetation and isolated fog forests (on coastal mountain ridges), which have been protected from grazing and disturbance since 1941. The well-known flora of the lower elevational scrub zone (Muiioz and Pisano 1947, Muiioz 1985, Hoffmann 1989, GutiCrrez et al. 1993a ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.