Habitat associations of juvenile versus adult butterflyfishes
... or (3) ontogenetic changes in resource requirements and spatial disparities in the availability of these resources (Cocheret de la Morinière et al. 2003a, b). Most coral reef fishes appear to utilize distinct juvenile habitats with high structural complexity or shallow water, presumably because the ...
... or (3) ontogenetic changes in resource requirements and spatial disparities in the availability of these resources (Cocheret de la Morinière et al. 2003a, b). Most coral reef fishes appear to utilize distinct juvenile habitats with high structural complexity or shallow water, presumably because the ...
H. cydno - Proceedings of the Royal Society B
... (Nymphalidae) have been proposed to be not only aposematic signals to potential predators, but also intra- and interspecific recognition signals that allow the butterflies to maintain their specific identities, and which perhaps drive the process of speciation, as well. Adaptive features under diffe ...
... (Nymphalidae) have been proposed to be not only aposematic signals to potential predators, but also intra- and interspecific recognition signals that allow the butterflies to maintain their specific identities, and which perhaps drive the process of speciation, as well. Adaptive features under diffe ...
Identification of Species and Habitats that Support Commercial
... in serious harm to fish that are part of a commercial, recreational or Aboriginal fishery, or to fish that support such a fishery”. An ecological interpretation of the support functions of an ecosystem are those functions which are essential for sustaining the production of commercial, recreational ...
... in serious harm to fish that are part of a commercial, recreational or Aboriginal fishery, or to fish that support such a fishery”. An ecological interpretation of the support functions of an ecosystem are those functions which are essential for sustaining the production of commercial, recreational ...
"Biotic Homogenization". - University of Washington
... adaptation and drift contribute to the genetic variability among isolated populations, which is expected to be critical in how species respond evolutionarily to environmental change. Consequently, genetic homogenization may jeopardize the future resilience of biological communities by decreasing the ...
... adaptation and drift contribute to the genetic variability among isolated populations, which is expected to be critical in how species respond evolutionarily to environmental change. Consequently, genetic homogenization may jeopardize the future resilience of biological communities by decreasing the ...
A Five Year Species Action Framework: making a difference for
... criteria but have not been listed (See Box 3). That is because in many cases we and our partners are already undertaking significant work on them or we have existing commitments to manage them. For example, some species are currently benefiting from various types of management schemes which are like ...
... criteria but have not been listed (See Box 3). That is because in many cases we and our partners are already undertaking significant work on them or we have existing commitments to manage them. For example, some species are currently benefiting from various types of management schemes which are like ...
Ecology of Herbivorous Arthropods in Urban Landscapes
... examines how features of urban landscapes generate properties that affect arthropod richness and abundance and predispose plants to attack by herbivorous arthropods. In some studies, the urbanization gradient was clear, ranging from natural areas and parks to residential areas and finally to cities. ...
... examines how features of urban landscapes generate properties that affect arthropod richness and abundance and predispose plants to attack by herbivorous arthropods. In some studies, the urbanization gradient was clear, ranging from natural areas and parks to residential areas and finally to cities. ...
Abrupt community change on a rocky shore – biological
... (Setchell, 1901). Although the local species richness is two to three orders of magnitude greater, and spatial structure is known to be important, we believe the essence of the ...
... (Setchell, 1901). Although the local species richness is two to three orders of magnitude greater, and spatial structure is known to be important, we believe the essence of the ...
Megafauna and ecosystem function from the
... Megafauna and the Trophic Structure of Ecosystems Megafauna are often defined as animals with adults larger than some threshold mass; Martin (23) originally suggested 100 pounds (45.3 kg). An alternative approach is to use a trophic herbivore–carnivore cascade definition (Fig. 1). For herbivores, la ...
... Megafauna and the Trophic Structure of Ecosystems Megafauna are often defined as animals with adults larger than some threshold mass; Martin (23) originally suggested 100 pounds (45.3 kg). An alternative approach is to use a trophic herbivore–carnivore cascade definition (Fig. 1). For herbivores, la ...
Phylogenetic signal in predator–prey body
... set of predator species that feed on a given prey taxon is evolutionarily more conserved, but when changes occur, it is with larger variability in the range of predator body sizes. Our analysis is not without its limitations, and a number of caveats should be recognized. The data come from topologic ...
... set of predator species that feed on a given prey taxon is evolutionarily more conserved, but when changes occur, it is with larger variability in the range of predator body sizes. Our analysis is not without its limitations, and a number of caveats should be recognized. The data come from topologic ...
The seedling as part of a plant`s life history strategy
... In this chapter, we will describe the intricate links between seedling ecology and life history traits such as seed mass, time to maturity, adult size, and reproductive life span. We will pay particular attention to seed mass, as this is the trait most closely linked to seedling ecology. Seed mass a ...
... In this chapter, we will describe the intricate links between seedling ecology and life history traits such as seed mass, time to maturity, adult size, and reproductive life span. We will pay particular attention to seed mass, as this is the trait most closely linked to seedling ecology. Seed mass a ...
COASTAL BEACH ECOSYSTEMS
... (cm) divided by modal wave period (seconds) and sand falJ velocity is the sinking rate (cm per second) of the mean sand particle size on the beach. Values for omega that are <2 generally indicate reflective beaches and values >5 indicate dissipative beaches. The foregoing description of beach types ...
... (cm) divided by modal wave period (seconds) and sand falJ velocity is the sinking rate (cm per second) of the mean sand particle size on the beach. Values for omega that are <2 generally indicate reflective beaches and values >5 indicate dissipative beaches. The foregoing description of beach types ...
Distribution of Exotic Freshwater Fishes in the Wet
... exercise in Eureka Creek a tributary of the Walsh River (Mitchell River catchment). The success of this control effort is still being monitored (ACTFR and QDPIF unpub. data). Gambusia (or mosquitofish) – Gambusia holbrooki Gambusia are also commonly known as mosquitofish or plague minnows. They are ...
... exercise in Eureka Creek a tributary of the Walsh River (Mitchell River catchment). The success of this control effort is still being monitored (ACTFR and QDPIF unpub. data). Gambusia (or mosquitofish) – Gambusia holbrooki Gambusia are also commonly known as mosquitofish or plague minnows. They are ...
montane, heath and bog habitats - Cairngorms National Park Authority
... area, except for some of the lower ground in the east. It is the second most extensive habitat type after upland heath, which it is often found in association with. Blanket bog grades into wet upland heath, with the predominant vegetation type a Calluna - Eriophorum dominated blanket mire typical of ...
... area, except for some of the lower ground in the east. It is the second most extensive habitat type after upland heath, which it is often found in association with. Blanket bog grades into wet upland heath, with the predominant vegetation type a Calluna - Eriophorum dominated blanket mire typical of ...
Managing open habitats in upland forests
... Appendix 1 lists the main types of conservation designation in the UK that may be relevant for upland habitats and species in upland forests. The most important designations are those for Natura 2000 sites which were selected to meet European Union (EU) Directives for habitats and species and for wi ...
... Appendix 1 lists the main types of conservation designation in the UK that may be relevant for upland habitats and species in upland forests. The most important designations are those for Natura 2000 sites which were selected to meet European Union (EU) Directives for habitats and species and for wi ...
Ontogenetic variation in the diurnal food and habitat
... a prey taxon comprises of all prey taxa in only those predators in which the actual prey occurs (Amundsen et al. 1996). Volume was subjectively estimated using a points method (e.g. Donald & Alger 1993, Wilhelm et al. 1999): The stomach contents of individual fish were assigned a total value of 10 p ...
... a prey taxon comprises of all prey taxa in only those predators in which the actual prey occurs (Amundsen et al. 1996). Volume was subjectively estimated using a points method (e.g. Donald & Alger 1993, Wilhelm et al. 1999): The stomach contents of individual fish were assigned a total value of 10 p ...
Olden et al. 2011 rusties
... ecosystems requires predictive tools that can be used to help guide resource allocation and prioritize management activities (Ricciardi and Rasmussen 1998, Vander Zanden and Olden 2008). Our ability to confront this challenge may be enhanced if the invasion process is considered as a stepwise progre ...
... ecosystems requires predictive tools that can be used to help guide resource allocation and prioritize management activities (Ricciardi and Rasmussen 1998, Vander Zanden and Olden 2008). Our ability to confront this challenge may be enhanced if the invasion process is considered as a stepwise progre ...
The Conservation and Ecology of Carnivorous Plants
... increasingly threatened by anthropogenic activities. Indeed, over half of the carnivorous plant species assessed by the International Union for the Conservation of Nature (IUCN) are listed as ‘threatened’, but the threats to carnivorous plants have not previously been quantified. In Chapter 2, I qua ...
... increasingly threatened by anthropogenic activities. Indeed, over half of the carnivorous plant species assessed by the International Union for the Conservation of Nature (IUCN) are listed as ‘threatened’, but the threats to carnivorous plants have not previously been quantified. In Chapter 2, I qua ...
Bern Convention activities in the field of large carnivore conservation
... encouraging opportunities for large carnivore management and conservation on a wider, panEuropean scale. In response to this challenge, WWF International, together with partner organizations and experts in 17 European countries launched the Large Carnivore Initiative for Europe (LCIE) in June 1995. ...
... encouraging opportunities for large carnivore management and conservation on a wider, panEuropean scale. In response to this challenge, WWF International, together with partner organizations and experts in 17 European countries launched the Large Carnivore Initiative for Europe (LCIE) in June 1995. ...
Interactions among mutualism, competition, and predation foster
... 2014). Recently, there has been a regained interest in combining interaction types such as mutualism and antagonism motivated by the recognition that indirect interactions can alter the effects of mutualism and antagonism (Holland et al. 2013; Tang et al. 2014), affect resilience of dynamical system ...
... 2014). Recently, there has been a regained interest in combining interaction types such as mutualism and antagonism motivated by the recognition that indirect interactions can alter the effects of mutualism and antagonism (Holland et al. 2013; Tang et al. 2014), affect resilience of dynamical system ...
Protists have divergent effects on bacterial diversity along a
... decreased with increasing productivity. That bacterial assemblages at high and low productivity are largely independent suggests a fitness trade-off between high and low productivity environments. At intermediate productivities, diversity is maximized because these assemblages start to cross over. W ...
... decreased with increasing productivity. That bacterial assemblages at high and low productivity are largely independent suggests a fitness trade-off between high and low productivity environments. At intermediate productivities, diversity is maximized because these assemblages start to cross over. W ...
Global patterns in the impact of marine herbivores on benthic
... 2002; Valentine & Duffy 2006). Knowing how benthic primary producers are controlled is crucial for understanding how marine ecosystems function and how anthropogenic impacts may ripple through marine ecosystems via indirect effects. In turn, the producer-herbivore relationship likely varies as a fun ...
... 2002; Valentine & Duffy 2006). Knowing how benthic primary producers are controlled is crucial for understanding how marine ecosystems function and how anthropogenic impacts may ripple through marine ecosystems via indirect effects. In turn, the producer-herbivore relationship likely varies as a fun ...
- University of Alberta
... nearly all roughly one year old or less based on size (<10 mm basal diameter) and lack of weathering on the skeletal plates. Limpets were the most conspicuous invertebrates. The shell lengths (apex to tip of siphonal canal to 0.1 mm) of both feeding and nonfeeding snails were recorded as well as the ...
... nearly all roughly one year old or less based on size (<10 mm basal diameter) and lack of weathering on the skeletal plates. Limpets were the most conspicuous invertebrates. The shell lengths (apex to tip of siphonal canal to 0.1 mm) of both feeding and nonfeeding snails were recorded as well as the ...
Stability and complexity : a reappraisal of the Competitive Exclusion
... Possible confusion arose because most authors assumed that ...
... Possible confusion arose because most authors assumed that ...
ecological opportunity and phenotypic plasticity
... two main evolutionary outcomes. First, one may drive the other locally extinct as predicted by the competitive exclusion principle, which states that no two species can occupy the same niche indefinitely when resources ...
... two main evolutionary outcomes. First, one may drive the other locally extinct as predicted by the competitive exclusion principle, which states that no two species can occupy the same niche indefinitely when resources ...