40 Anniversary Conference Gesellschaft für Ökologie
... In this year we will celebrate the 40 anniversary of the GfÖ. As I have mentioned before, we actually celebrate the birth of a great idea, since the inscription of our society into the forms of the district court took place a little bit later. However, I consider the birth of an idea to be much more ...
... In this year we will celebrate the 40 anniversary of the GfÖ. As I have mentioned before, we actually celebrate the birth of a great idea, since the inscription of our society into the forms of the district court took place a little bit later. However, I consider the birth of an idea to be much more ...
Estuarine Ecology Comprehensive Information
... 5. where criteria for specific impacts do not exist (e.g., nonpoint source impacts that degrade habitat), negative changes in the biological communities may be the only practical means of evaluation. The bioassessment techniques presented in this document focus on the evaluation of water quality, ha ...
... 5. where criteria for specific impacts do not exist (e.g., nonpoint source impacts that degrade habitat), negative changes in the biological communities may be the only practical means of evaluation. The bioassessment techniques presented in this document focus on the evaluation of water quality, ha ...
Survival Strategies of the Rotifer Brachionus rotundiformis - E-FAS
... Sometimes, scientists induce the production of mixis reproduction (cyst) as an easy method of storing and transporting for marine fish larvae culture or aquaculture study. The hatching of rotifer resting eggs is caused by stimulation from light, temperature, salinity and some chemicals (reviewed by ...
... Sometimes, scientists induce the production of mixis reproduction (cyst) as an easy method of storing and transporting for marine fish larvae culture or aquaculture study. The hatching of rotifer resting eggs is caused by stimulation from light, temperature, salinity and some chemicals (reviewed by ...
The Sociology of Ecology
... nature and science, seeing environmental crises first and foremost as discursive constructions and therefore open to diverse interpretations.1 In what follows, we attempt to throw further light on the realist–constructionist divide and to show how this division can be transcended through a realist–c ...
... nature and science, seeing environmental crises first and foremost as discursive constructions and therefore open to diverse interpretations.1 In what follows, we attempt to throw further light on the realist–constructionist divide and to show how this division can be transcended through a realist–c ...
Interim koala referral advice for proponents
... area, there would be no need to undertake a koala survey or habitat assessment. Where the PMST indicates that koalas may be present, but there is little or no information available on koala populations and habitat in your study area, you should conduct both a habitat assessment and a koala survey (s ...
... area, there would be no need to undertake a koala survey or habitat assessment. Where the PMST indicates that koalas may be present, but there is little or no information available on koala populations and habitat in your study area, you should conduct both a habitat assessment and a koala survey (s ...
Hierarchical organization of a Sardinian sand dune plant
... formation. These plants stabilize substrate, trap seeds, and grow vertically and horizontally as sand accumulates, building the seaward border of sand dunes (Cowles, 1899; Oosting & Billings, 1942). At higher elevations in the middle-dune, plant species diversity increases, but unvegetated free spac ...
... formation. These plants stabilize substrate, trap seeds, and grow vertically and horizontally as sand accumulates, building the seaward border of sand dunes (Cowles, 1899; Oosting & Billings, 1942). At higher elevations in the middle-dune, plant species diversity increases, but unvegetated free spac ...
understanding stability in mutualisms: can extrinsic factors balance
... Yuccas can selectively abscise fruit with high egg loads for moth species that damage ovules during oviposition into the locule. Female T. cassandra, however, lay eggs less than a millimeter beneath the tissue surface and fail to damage ovules, circumventing this mechanism of selective abscission. C ...
... Yuccas can selectively abscise fruit with high egg loads for moth species that damage ovules during oviposition into the locule. Female T. cassandra, however, lay eggs less than a millimeter beneath the tissue surface and fail to damage ovules, circumventing this mechanism of selective abscission. C ...
Settlement, growth and structure of three marine
... and recruitment is unable to take place with any certainty. Jackson (1977) proposed that this need will be reflected by higher rates of recruitment for solitary animals compared with colonial animals. ...
... and recruitment is unable to take place with any certainty. Jackson (1977) proposed that this need will be reflected by higher rates of recruitment for solitary animals compared with colonial animals. ...
beyond the ecological: biological invasions alter natural selection on
... included in the experiment. In March, I censused each transplant for herbivory (measured as the proportion of leaflets with chewing damage from Hypera). Because leaflets are relatively small (;4–15 mm in length), this measure of herbivory is likely a good correlate of the amount of photosynthetic mate ...
... included in the experiment. In March, I censused each transplant for herbivory (measured as the proportion of leaflets with chewing damage from Hypera). Because leaflets are relatively small (;4–15 mm in length), this measure of herbivory is likely a good correlate of the amount of photosynthetic mate ...
Migratory Fishes as Material and Process Subsidies in Riverine Ecosystems
... erating nutrients and energy from migratory fishes and retaining those materials within the food web of the recipient ecosystem. Thus, anadromous semelparous Pacific salmon Oncorhynchus spp. with en masse programmed senescence in oligotrophic Pacific Northwest streams can be large material subsidies ...
... erating nutrients and energy from migratory fishes and retaining those materials within the food web of the recipient ecosystem. Thus, anadromous semelparous Pacific salmon Oncorhynchus spp. with en masse programmed senescence in oligotrophic Pacific Northwest streams can be large material subsidies ...
Chapter 6: Biological Resources and Biodiversity of Dutchess
... protect “the biologic integrity of the natural environment, on which man is dependent for survival, and the natural and functional beauty of our surroundings which condition the quality of our life,” (Dutchess County Legislature, 1972). The concept of biodiversity can be defined as the entire divers ...
... protect “the biologic integrity of the natural environment, on which man is dependent for survival, and the natural and functional beauty of our surroundings which condition the quality of our life,” (Dutchess County Legislature, 1972). The concept of biodiversity can be defined as the entire divers ...
Behavioral responses of American toad and bullfrog - Gt-ibma
... Hurlbert et al. 1972). In several cases, the introduction of mosquitofish has resulted in or contributed to the decline or disappearance of some amphibians (e.g., Litoria aurea in Australia: Pyke and White 1996, 2001; White and Pyke 1996; Lewis and Goldingay 1999; Mahoney 1999; but see Hamer et al. ...
... Hurlbert et al. 1972). In several cases, the introduction of mosquitofish has resulted in or contributed to the decline or disappearance of some amphibians (e.g., Litoria aurea in Australia: Pyke and White 1996, 2001; White and Pyke 1996; Lewis and Goldingay 1999; Mahoney 1999; but see Hamer et al. ...
Paxton Lake Benthic and Limnetic Stickleback (Gasterosteus
... beyond a single breeding season. Reproductive females have multiple clutches in quick succession. Nesting males will mate with several to many females, and are thought to often nest more than once within a single breeding season. Benthics delay sexual maturation and on average begin mating as two-ye ...
... beyond a single breeding season. Reproductive females have multiple clutches in quick succession. Nesting males will mate with several to many females, and are thought to often nest more than once within a single breeding season. Benthics delay sexual maturation and on average begin mating as two-ye ...
tests for similarity and convergence of finch
... species that were not granivorous. For example, Orians (1969) lists species of the Emberizidae found in forest sites in Costa Rica, and their diets; those that did not feed on seeds were excluded from my analysis. Similarly, the weaver Malimbus rubriceps occurs in tropical savanna woodland of northe ...
... species that were not granivorous. For example, Orians (1969) lists species of the Emberizidae found in forest sites in Costa Rica, and their diets; those that did not feed on seeds were excluded from my analysis. Similarly, the weaver Malimbus rubriceps occurs in tropical savanna woodland of northe ...
Effects of intra- and interspecific competition on
... (intraM) and high (intraH) intraspecific competition treatments consisted of glass jars containing 20, 40 and 80 individuals of D. magna, respectively. The resulting initial density was 40, 80 and 160 individuals/L for the intraC, intraM and intraH treatments, respectively. Even the highest densitie ...
... (intraM) and high (intraH) intraspecific competition treatments consisted of glass jars containing 20, 40 and 80 individuals of D. magna, respectively. The resulting initial density was 40, 80 and 160 individuals/L for the intraC, intraM and intraH treatments, respectively. Even the highest densitie ...
Response of endemic and exotic earthworm communities to
... differ from any described species as observed in previous studies (Boyer et al. 2011b) and were therefore classified in Recognizable Taxonomic Units (RTUs) based on their morphology (Lee 1959b) as ...
... differ from any described species as observed in previous studies (Boyer et al. 2011b) and were therefore classified in Recognizable Taxonomic Units (RTUs) based on their morphology (Lee 1959b) as ...
Stress hormones suggest opposite trends of food availability for
... Bertram et al., 2005; Gaston et al., 2005; Grosbois and Thompson, 2005). This is of critical importance in understanding impacts of climate change on marine top predators, but rarely provides information about intra-seasonal dynamics of prey availability, and does not always shed light on the mechan ...
... Bertram et al., 2005; Gaston et al., 2005; Grosbois and Thompson, 2005). This is of critical importance in understanding impacts of climate change on marine top predators, but rarely provides information about intra-seasonal dynamics of prey availability, and does not always shed light on the mechan ...
Parasitism and food web dynamics of juvenile
... make prey more susceptible to predation may have evolved to facilitate transmission to a definitive host (e.g., Carney 1969, Lafferty and Morris 1996). However, there is growing recognition that parasites can influence food web dynamics of host populations more broadly (Hatcher et al. 2006, 2014). P ...
... make prey more susceptible to predation may have evolved to facilitate transmission to a definitive host (e.g., Carney 1969, Lafferty and Morris 1996). However, there is growing recognition that parasites can influence food web dynamics of host populations more broadly (Hatcher et al. 2006, 2014). P ...
Selective feeding behaviour of key free
... among others (for reviews see Landry 1994, Sherr & Sherr 1997). However, while the determination of grazing rates is invaluable, such measurements do not improve our understanding of why a prey type is ingested at a particular rate, or indeed why it might be rejected. To make simple predictions of h ...
... among others (for reviews see Landry 1994, Sherr & Sherr 1997). However, while the determination of grazing rates is invaluable, such measurements do not improve our understanding of why a prey type is ingested at a particular rate, or indeed why it might be rejected. To make simple predictions of h ...
INFORMING THE RESTORATION OF PIEDMONT SAVANNA USING
... features of riverscour. Open conditions of these sites are maintained in part by the occurrence of periodic flooding. The Locust Fork of the Black Warrior River in Blount County, Alabama lies within the Southern Table Plateau ecoregion of the Southwestern Appalachian Province. This region of the Cum ...
... features of riverscour. Open conditions of these sites are maintained in part by the occurrence of periodic flooding. The Locust Fork of the Black Warrior River in Blount County, Alabama lies within the Southern Table Plateau ecoregion of the Southwestern Appalachian Province. This region of the Cum ...
Functional community structure of shallow hard bottom
... functioning and services are increasingly commonplace. Thus, a trait-based view of communities may be more insightful than that based solely on species composition, especially when inferring ecological responses to environmental change. This underscores the importance and urgency of establishing ben ...
... functioning and services are increasingly commonplace. Thus, a trait-based view of communities may be more insightful than that based solely on species composition, especially when inferring ecological responses to environmental change. This underscores the importance and urgency of establishing ben ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.