habitat management guidelines for amphibians and reptiles of the
... nights within their active season. Given a few exceptions, herps are inactive during cold periods and dry environmental conditions. They do not have protective covers of feathers or fur to protect them from cold or dryness. Thus, the combined conditions of temperature and moisture regulate when and ...
... nights within their active season. Given a few exceptions, herps are inactive during cold periods and dry environmental conditions. They do not have protective covers of feathers or fur to protect them from cold or dryness. Thus, the combined conditions of temperature and moisture regulate when and ...
111 - CREAF
... total inorganic C in deep seawater (Broecker and Peng 1982), whereas biologists use a ratio of 106:16:1 based on Fleming’s analysis of the average elemental composition of marine organisms (Goldman et al. 1979). Different organisms can strongly differ in their C:N:P ratio, thus the Redfield N:P rati ...
... total inorganic C in deep seawater (Broecker and Peng 1982), whereas biologists use a ratio of 106:16:1 based on Fleming’s analysis of the average elemental composition of marine organisms (Goldman et al. 1979). Different organisms can strongly differ in their C:N:P ratio, thus the Redfield N:P rati ...
Myall Lakes Ramsar site ecological character description
... ecosystem processes (Healthy Rivers Commission 2002). The dominant feature of the site is the large interconnected lakes system which covers an area of 10,000–15,000 ha (the range is due to varying water levels). The two large lakes – Myall Lake in the north, and Bombah Broadwater in the south – are ...
... ecosystem processes (Healthy Rivers Commission 2002). The dominant feature of the site is the large interconnected lakes system which covers an area of 10,000–15,000 ha (the range is due to varying water levels). The two large lakes – Myall Lake in the north, and Bombah Broadwater in the south – are ...
2013 Faculty Achievements and Activities Quinney College of Natural Resources Awards and Honors
... ecosystem, (November 2013), Forest Ecology and Management, 307, 313-321. Increasing precipitation intensity linked to woody plant encroachment, (August 2013), Nature Climate Change, 3, 833-837. Invasive plants in U.S. National Wildlife Refuges: A coordinated research project using undergraduate ecol ...
... ecosystem, (November 2013), Forest Ecology and Management, 307, 313-321. Increasing precipitation intensity linked to woody plant encroachment, (August 2013), Nature Climate Change, 3, 833-837. Invasive plants in U.S. National Wildlife Refuges: A coordinated research project using undergraduate ecol ...
Northern hairy-nosed wombat factsheet
... hairy-nosed wombats Visit www.ehp.qld.gov.au or phone 13 QGOV (13 74 68). are left? It is thought that the NHN wombat might have already been in decline when Europeans settled, and was probably the least common of the three wombat species at that time. In the 1980’s NHN wombat numbers had fallen as ...
... hairy-nosed wombats Visit www.ehp.qld.gov.au or phone 13 QGOV (13 74 68). are left? It is thought that the NHN wombat might have already been in decline when Europeans settled, and was probably the least common of the three wombat species at that time. In the 1980’s NHN wombat numbers had fallen as ...
Plant competition in mediterranean
... frequently subjected to disturbance, mainly fire (Naveh 1974; Mooney & Conrad 1977). Post-fire succession may lead to less competition (Noble & Slatyer 1977) because it implies the reduction of plant density and a greater availability of resources at the individual plant level (water, nutrients, lig ...
... frequently subjected to disturbance, mainly fire (Naveh 1974; Mooney & Conrad 1977). Post-fire succession may lead to less competition (Noble & Slatyer 1977) because it implies the reduction of plant density and a greater availability of resources at the individual plant level (water, nutrients, lig ...
Soil biology and agriculture in the tropics
... arid lands. Removing the shrubs did not affect most of the improved soil parameters in the long dry season occurring after shrub removal, except for water content. These positive effects notwithstanding, over a 1-year period, transplanted A. dumosa seedlings had highest survival where shrub removal ...
... arid lands. Removing the shrubs did not affect most of the improved soil parameters in the long dry season occurring after shrub removal, except for water content. These positive effects notwithstanding, over a 1-year period, transplanted A. dumosa seedlings had highest survival where shrub removal ...
Fungal Community Ecology: A Hybrid Beast with a Molecular Master
... and lab experimentation indicate that fungal ecology has a bright future. Keywords: competition, diversity, fungi, niche, microbial ecology ...
... and lab experimentation indicate that fungal ecology has a bright future. Keywords: competition, diversity, fungi, niche, microbial ecology ...
Below-ground ectomycorrhizal communities: the effect of small scale
... Before going into details about the exact variation found in the below-ground ECM communities across space and time, it may be enlightening to briefly investigate the niche effect and its consequences for the ECM community. In ecology, a niche is generally defined as set of biotic and abiotic condit ...
... Before going into details about the exact variation found in the below-ground ECM communities across space and time, it may be enlightening to briefly investigate the niche effect and its consequences for the ECM community. In ecology, a niche is generally defined as set of biotic and abiotic condit ...
Peay et al 2008 - North American Mycoflora Project
... and lab experimentation indicate that fungal ecology has a bright future. Keywords: competition, diversity, fungi, niche, microbial ecology ...
... and lab experimentation indicate that fungal ecology has a bright future. Keywords: competition, diversity, fungi, niche, microbial ecology ...
- Wiley Online Library
... levels taken to the nearest first decimal, making up 11 levels in total. Both plant size and damage levels were measured during the six time points across the season. In week 33 (17 weeks after germination), when monitoring had finished, leaf samples were taken for glucosinolate analysis (for detail ...
... levels taken to the nearest first decimal, making up 11 levels in total. Both plant size and damage levels were measured during the six time points across the season. In week 33 (17 weeks after germination), when monitoring had finished, leaf samples were taken for glucosinolate analysis (for detail ...
Compensation masks trophic cascades in complex food
... the feeding relationships between interacting species within an ecosystem. Understanding how the complexity of these networks influences their response to changing top-down control is a central challenge in ecology. Here, we provide a model-based investigation of trophic cascades — an oft-studied ec ...
... the feeding relationships between interacting species within an ecosystem. Understanding how the complexity of these networks influences their response to changing top-down control is a central challenge in ecology. Here, we provide a model-based investigation of trophic cascades — an oft-studied ec ...
Environmental Biology ~ Allan M. Jones ~ 2001
... The last few years have witnessed tremendous changes in the syllabi of environmentallyrelated courses at Advanced Level and in tertiary education. Moreover, there have been major alterations in the way degree and diploma courses are organised in colleges and universities. Syllabus changes reflect th ...
... The last few years have witnessed tremendous changes in the syllabi of environmentallyrelated courses at Advanced Level and in tertiary education. Moreover, there have been major alterations in the way degree and diploma courses are organised in colleges and universities. Syllabus changes reflect th ...
Ecological Role of Dry-Habitat Chimpanzees (Pan troglodytes
... the driest, most open, and seasonal habitats inhabited by chimpanzees. Unlike most primatological studies which employ methods that include focal follows, this study focused instead on observing ‘resource patches’ for chimpanzees. Patch focals allow for the observation of all animals within a study ...
... the driest, most open, and seasonal habitats inhabited by chimpanzees. Unlike most primatological studies which employ methods that include focal follows, this study focused instead on observing ‘resource patches’ for chimpanzees. Patch focals allow for the observation of all animals within a study ...
Soil Zoology
... C and S isotope ratios, which undergo little fractionation, and trophic positions of animals from their N isotope ratios, which increase along food chains in a step-wise fashion (Gannes et al., 1997; McCutchan et al. 2003). Part 2: Applications and future developments Early stable isotope tracer app ...
... C and S isotope ratios, which undergo little fractionation, and trophic positions of animals from their N isotope ratios, which increase along food chains in a step-wise fashion (Gannes et al., 1997; McCutchan et al. 2003). Part 2: Applications and future developments Early stable isotope tracer app ...
The Behavioral Ecology of Nutrient Foraging by Plants
... The idea that plants behave is well established in the literature (Hutchings & de Kroon 1994, Karban 2008, Lacey & Herr 2005, Marshall & Folsom 1991, McNickle et al. 2009, Silvertown & Gordon 1989). Among the best-studied aspects of plant behavior is that of root foraging for soil nutrients. Finding ...
... The idea that plants behave is well established in the literature (Hutchings & de Kroon 1994, Karban 2008, Lacey & Herr 2005, Marshall & Folsom 1991, McNickle et al. 2009, Silvertown & Gordon 1989). Among the best-studied aspects of plant behavior is that of root foraging for soil nutrients. Finding ...
PDF
... determining scavenger habitat use and distribution [10], [11], [12]. For scavengers relying solely on carrion, food availability is a factor of not just live-prey abundance but also prey mortality, which vary both spatially and temporally. The relative importance of prey abundance and mortality and ...
... determining scavenger habitat use and distribution [10], [11], [12]. For scavengers relying solely on carrion, food availability is a factor of not just live-prey abundance but also prey mortality, which vary both spatially and temporally. The relative importance of prey abundance and mortality and ...
Behavioural biology: an effective and relevant conservation tool
... fledged at this point, we should look for signs that it continues to strengthen in terms of training resources, pervasiveness in the published literature, and acceptance by grant-awarding agencies and career mentors. Supportive evidence includes the following. Eighty percent of recently published ...
... fledged at this point, we should look for signs that it continues to strengthen in terms of training resources, pervasiveness in the published literature, and acceptance by grant-awarding agencies and career mentors. Supportive evidence includes the following. Eighty percent of recently published ...
Community Ecology 8
... manner”, MacMahon et al. (1981) and Jaksiæ (1981) argue that community guilds should be defined on the basis of resource utilisation patterns of species, and they conclude that the most important is the effect of resource use on the resource itself. Quoting MacMahon et al. (1981, p. 301), “...it doe ...
... manner”, MacMahon et al. (1981) and Jaksiæ (1981) argue that community guilds should be defined on the basis of resource utilisation patterns of species, and they conclude that the most important is the effect of resource use on the resource itself. Quoting MacMahon et al. (1981, p. 301), “...it doe ...
Evolution and Ecology of Species Range Limits
... processes. A central goal in evolutionary biology is understanding conditions that facilitate adaptive diversification versus those that promote niche conservatism. Adaptation to novel habitats at the range margin is akin to niche evolution (see Holt & Gomulkiewicz 1997 for a classic introduction to ...
... processes. A central goal in evolutionary biology is understanding conditions that facilitate adaptive diversification versus those that promote niche conservatism. Adaptation to novel habitats at the range margin is akin to niche evolution (see Holt & Gomulkiewicz 1997 for a classic introduction to ...
Disturbance regime and limits on benefits of - Everglades-HUB
... frequent, or of greater duration (Fig. 1). Under conditions that are relatively benign due to low intensity or frequency of disturbance, the use and importance of refuge habitat will be low. As disturbances become more frequent or intense, use of refuge habitats will increase and the importance of t ...
... frequent, or of greater duration (Fig. 1). Under conditions that are relatively benign due to low intensity or frequency of disturbance, the use and importance of refuge habitat will be low. As disturbances become more frequent or intense, use of refuge habitats will increase and the importance of t ...
Chapter 15: Reptiles - Bryophyte Ecology
... caverns at the shores of the swamps (Figure 4), both requiring Sphagnum peatlands. The stable temperature of the hummocks protects the turtles from freezing, permitting them to maintain a body temperature of 0.3-3.9ºC at the northern limits of their range, despite air temperatures that reach -35ºC. ...
... caverns at the shores of the swamps (Figure 4), both requiring Sphagnum peatlands. The stable temperature of the hummocks protects the turtles from freezing, permitting them to maintain a body temperature of 0.3-3.9ºC at the northern limits of their range, despite air temperatures that reach -35ºC. ...
Territoriality migration
... Rather, she found that safety from predators and suitable temperature appeared to be the most important attributes of a desirable territory. How do juvenile lizards determine which territories are suitable with respect to temperature and predation pressure? Do lizards learn what areas are best ...
... Rather, she found that safety from predators and suitable temperature appeared to be the most important attributes of a desirable territory. How do juvenile lizards determine which territories are suitable with respect to temperature and predation pressure? Do lizards learn what areas are best ...
Stability and complexity : a reappraisal of the Competitive Exclusion
... Nevertheless, after further review, past studies only skirt or completely dodge the questions of importance. These issues of significance examined are the generality of the competitive exclusion principle and the negative association of stability and complexity. ...
... Nevertheless, after further review, past studies only skirt or completely dodge the questions of importance. These issues of significance examined are the generality of the competitive exclusion principle and the negative association of stability and complexity. ...
Elf owl
... Elf owls evidently have a low potential intrinsic rate of population growth and thus are vulnerable to ecological factors affecting population size, such as predation and competition. As noted above, the typical clutch is 2.6 eggs. Hatching success is approximately 95% (Ligon 1968) but fledging succ ...
... Elf owls evidently have a low potential intrinsic rate of population growth and thus are vulnerable to ecological factors affecting population size, such as predation and competition. As noted above, the typical clutch is 2.6 eggs. Hatching success is approximately 95% (Ligon 1968) but fledging succ ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.