- Wiley Online Library
... that individuals disperse according to some form of a dispersal kernel (but see Zurell et al. 2012) and that this kernel is a fixed property of a species. However, the assumption of fixed dispersal kernels may be strongly violated for many animal species, for animal-dispersed plants and even for pas ...
... that individuals disperse according to some form of a dispersal kernel (but see Zurell et al. 2012) and that this kernel is a fixed property of a species. However, the assumption of fixed dispersal kernels may be strongly violated for many animal species, for animal-dispersed plants and even for pas ...
Koala (Phascolarctos cinereus) – Fact Sheet
... which can be detrimental to the environment due to high levels of browsing on their preferred feed trees [3]. Hence, in some areas of Australia koala populations are declining, while in others they are increasing, making management strategies for the species complex. The Conservation Status of the k ...
... which can be detrimental to the environment due to high levels of browsing on their preferred feed trees [3]. Hence, in some areas of Australia koala populations are declining, while in others they are increasing, making management strategies for the species complex. The Conservation Status of the k ...
. Carp, Cyprinus carpio Overview Overview table Invasion history
... The life-history is flexible, with long breeding seasons (up to 9 months) and the ability to spawn multiple times each year. Spawning occurs two or three times over a 14 day interval. Mating groups of one female and several males swim actively before spawning. A temperature of 18°C is required for s ...
... The life-history is flexible, with long breeding seasons (up to 9 months) and the ability to spawn multiple times each year. Spawning occurs two or three times over a 14 day interval. Mating groups of one female and several males swim actively before spawning. A temperature of 18°C is required for s ...
Definitions, Categories and Criteria for Threatened and Priority
... species composition and community structure within the range of variability exhibited by the original community is unlikely within the foreseeable future even with positive human intervention.” Note: Modification and destruction are difficult concepts to quantify, and their application will be deter ...
... species composition and community structure within the range of variability exhibited by the original community is unlikely within the foreseeable future even with positive human intervention.” Note: Modification and destruction are difficult concepts to quantify, and their application will be deter ...
Predation versus transplantation
... • Rape is not necessary -> not allowed • Predation is normal, necessary and natural -> allowed • Killing insects by accident by moving around is normal, natural and necessary -> allowed Principle corresponds with moral intuitions ...
... • Rape is not necessary -> not allowed • Predation is normal, necessary and natural -> allowed • Killing insects by accident by moving around is normal, natural and necessary -> allowed Principle corresponds with moral intuitions ...
Section 1.1 Silence of the Frogs
... What effect would the loss of frogs have on an ecosystem? ...
... What effect would the loss of frogs have on an ecosystem? ...
Lecture 2 Wilderness typology and characterisation
... Semi-natural areas, which appear natural but are in fact influenced by management for agriculture or forestry. Near-natural areas, where the land is totally divorced from agricultural or forestry use – in which natural processes are encouraged to maintain the diversity of habitats, and vegetation is ...
... Semi-natural areas, which appear natural but are in fact influenced by management for agriculture or forestry. Near-natural areas, where the land is totally divorced from agricultural or forestry use – in which natural processes are encouraged to maintain the diversity of habitats, and vegetation is ...
Latitudinally structured variation in the temperature dependence of damselfly growth rates
... throughout its latitudinal range, allowing us to characterise variation in E along a latitudinal gradient spanning 3600 km. We show that E differs among populations and increases with latitude. E was right-skewness across species, but this was largely an artefact of the latitudinal trend. Increased ...
... throughout its latitudinal range, allowing us to characterise variation in E along a latitudinal gradient spanning 3600 km. We show that E differs among populations and increases with latitude. E was right-skewness across species, but this was largely an artefact of the latitudinal trend. Increased ...
46-52. Full article - Entomologica Fennica
... other tyrphobiontic and tyrphophilous species of central European peat bogs (e.g. Spitzer et al. [1999] and our unpublished light-trap data). It is likely that the most important dimension of the ecological niche of herbivorous tyrphobiontic species is not only a specific boreal food plant, but the ...
... other tyrphobiontic and tyrphophilous species of central European peat bogs (e.g. Spitzer et al. [1999] and our unpublished light-trap data). It is likely that the most important dimension of the ecological niche of herbivorous tyrphobiontic species is not only a specific boreal food plant, but the ...
Chesson, P., Pacala, S., Neuhauser, C. 2001. Environmental niches
... response is uncorrelated with the other species would be advantaged relative to the other species by an amount proportional to F 2. If it is negatively correlated with the other species, its advantage would be more; if positive correlated, its advantage would be less. The advantage that accrues to a ...
... response is uncorrelated with the other species would be advantaged relative to the other species by an amount proportional to F 2. If it is negatively correlated with the other species, its advantage would be more; if positive correlated, its advantage would be less. The advantage that accrues to a ...
Balanced harvesting in fisheries: economic
... option value of those species, reflecting the potential to provide future economic value, based on possible uses not currently known, e.g. as a cure for disease, (iv) avoiding expensive rebuilding plans that are often obligatory for populations nearing extirpation, and costly adjustments by fishers ...
... option value of those species, reflecting the potential to provide future economic value, based on possible uses not currently known, e.g. as a cure for disease, (iv) avoiding expensive rebuilding plans that are often obligatory for populations nearing extirpation, and costly adjustments by fishers ...
Practice Exam
... 41. How many kcal will become incorporated in the tissues of the tertiary consumers? a) 5 b) 50 c) 500 d) 5,000 e) 50,000 42. The consumer group represented by the perpendicular bar labeled “Y” is known as the: a) carnivores b) decomposers c) omnivores d) keystones e) herbivores 43. Ants, Bees, Wolv ...
... 41. How many kcal will become incorporated in the tissues of the tertiary consumers? a) 5 b) 50 c) 500 d) 5,000 e) 50,000 42. The consumer group represented by the perpendicular bar labeled “Y” is known as the: a) carnivores b) decomposers c) omnivores d) keystones e) herbivores 43. Ants, Bees, Wolv ...
Forest Bird Habitat Assessment
... United States; they are a "nursery" for approximately 70 species of neo-tropical migratory birds. Although some of these birds are still common in our area – many are experiencing long-term population declines and have been identified by Audubon Connecticut as Priority Species. Audubon Connecticut’s ...
... United States; they are a "nursery" for approximately 70 species of neo-tropical migratory birds. Although some of these birds are still common in our area – many are experiencing long-term population declines and have been identified by Audubon Connecticut as Priority Species. Audubon Connecticut’s ...
Improving the ecological understanding of species complexes: the
... (60.7%) was a result of mechanistic damage, likely to have occurred during capture and consumption of prey and/or decay of larvae in the gut of the predator. Bayesian estimates of the species structure of the larvae ingested by Hypseleotris spp. (Table 2) showed similar posterior probabilities for ...
... (60.7%) was a result of mechanistic damage, likely to have occurred during capture and consumption of prey and/or decay of larvae in the gut of the predator. Bayesian estimates of the species structure of the larvae ingested by Hypseleotris spp. (Table 2) showed similar posterior probabilities for ...
Inquiry into the control of invasive animals on crown land
... Predators like foxes and cats place native animals at risk through predation. Herbivores like goats and rabbits compete with wildlife for food and habitat resources and can have a high impact on native vegetation sometimes denuding areas and exposing land to further degradation through erosion. Omni ...
... Predators like foxes and cats place native animals at risk through predation. Herbivores like goats and rabbits compete with wildlife for food and habitat resources and can have a high impact on native vegetation sometimes denuding areas and exposing land to further degradation through erosion. Omni ...
Unit 7 Review 1. Define the following terms: a. Organism b
... 9. Give an example of a habitat that would be the basis for: a) primary succession b) secondary succession Use the following information to answer questions 10-14: Hawaiian squid, Euprymna scolopes: Most nocturnal creatures cast shadows under the bright Hawaiian moonlight and are easy prey to predat ...
... 9. Give an example of a habitat that would be the basis for: a) primary succession b) secondary succession Use the following information to answer questions 10-14: Hawaiian squid, Euprymna scolopes: Most nocturnal creatures cast shadows under the bright Hawaiian moonlight and are easy prey to predat ...
View or download Discussion and literature cited
... flowering and fruiting were occurring or beginning to occur. Two of the three prescribed planted populations were established for these species. A greater degree of stabilization can be achieved for these species by establishing additional populations. In any case, HPPRCC standards should be regarde ...
... flowering and fruiting were occurring or beginning to occur. Two of the three prescribed planted populations were established for these species. A greater degree of stabilization can be achieved for these species by establishing additional populations. In any case, HPPRCC standards should be regarde ...
Recruitment and post-recruit immigration
... Reef system. At least one third of the total number of recruits and immigrants to all bommies were post-recruit fishes, and movement between bommies in 136 species was detected at some time during the 22 month sampling period. The relative numbers of recruits and post-recruit immigrants per species ...
... Reef system. At least one third of the total number of recruits and immigrants to all bommies were post-recruit fishes, and movement between bommies in 136 species was detected at some time during the 22 month sampling period. The relative numbers of recruits and post-recruit immigrants per species ...
University of Groningen The Serengeti food web de Visser
... real-world food webs to parameterize these models. 2. Here, we present a first size-structured topological food web of one of the most pristine terrestrial ecosystems in the world, the Serengeti ecosystem (Tanzania). The food web consists of 95 grouped nodes and includes both invertebrates and verteb ...
... real-world food webs to parameterize these models. 2. Here, we present a first size-structured topological food web of one of the most pristine terrestrial ecosystems in the world, the Serengeti ecosystem (Tanzania). The food web consists of 95 grouped nodes and includes both invertebrates and verteb ...
Monsoon Vine Thickets Monsoon Vine Thickets
... mammals as well as migratory species like the channelbilled cuckoo and pied pigeon. ...
... mammals as well as migratory species like the channelbilled cuckoo and pied pigeon. ...
Habitat
... average life-span is five years. Razor Clams have been found up to one-half mile offshore. Domoic acid collects in the tissue of Razor Clams. This naturally occurring by-product of phytoplanktons is poisonous to humans. It appears that domoic acid rates are increasing and human impacts may be the ca ...
... average life-span is five years. Razor Clams have been found up to one-half mile offshore. Domoic acid collects in the tissue of Razor Clams. This naturally occurring by-product of phytoplanktons is poisonous to humans. It appears that domoic acid rates are increasing and human impacts may be the ca ...
Recolonizing wolves trigger a trophic cascade in Wisconsin (USA)
... (Halaj & Wise 2001). However, recent evidence from experimental manipulations of herbivores and carnivores in old field ecosystems suggests that predators in terrestrial systems have much stronger effects on plant species diversity than on plant biomass (Schmitz 2006). Furthermore, it is these change ...
... (Halaj & Wise 2001). However, recent evidence from experimental manipulations of herbivores and carnivores in old field ecosystems suggests that predators in terrestrial systems have much stronger effects on plant species diversity than on plant biomass (Schmitz 2006). Furthermore, it is these change ...
Assessing the Effects of Climate Change on Aquatic Invasive Species
... in the Laurentian Great Lakes (MacIsaac 1996). Warmer water temperatures could allow these and other invasive species to begin growth earlier in the year and maintain growth later into the fall; thus, costly control actions would need to be implemented more frequently. In other situations non-native ...
... in the Laurentian Great Lakes (MacIsaac 1996). Warmer water temperatures could allow these and other invasive species to begin growth earlier in the year and maintain growth later into the fall; thus, costly control actions would need to be implemented more frequently. In other situations non-native ...
How many parasites? - Princeton University
... one acanthocephalan (7, 8, 22). None of these estimates take possible unrecognized cryptic species into account, but, in general, helminths that parasitize avian species seem to be less host-specific than those that parasitize mammals. Ultimately, the parasitic fauna of any host species reflects its ...
... one acanthocephalan (7, 8, 22). None of these estimates take possible unrecognized cryptic species into account, but, in general, helminths that parasitize avian species seem to be less host-specific than those that parasitize mammals. Ultimately, the parasitic fauna of any host species reflects its ...
Feral cats and the fitoaty: first population assessment of the black
... conducted across the Masoala-Makira landscape (Farris and Kelly 2011; Farris et al. 2012, 2014, 2015b) and provide the first photographic data of the presence of feral cats and the recently described fitoaty across this region, including photographic captures that allow for ecological and morphologi ...
... conducted across the Masoala-Makira landscape (Farris and Kelly 2011; Farris et al. 2012, 2014, 2015b) and provide the first photographic data of the presence of feral cats and the recently described fitoaty across this region, including photographic captures that allow for ecological and morphologi ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.