Is There Current Competition between Sympatric Siberian Weasels
... niche differentiation or resource partitioning to avoid competition (Begon et al. 1986, Ricklefs 1990). Habitat, food, and time have been suggested to be the most important niche dimensions in resource partitioning between species (Pianka 1969, Schoener 1986). If the species fail to differentiate in ...
... niche differentiation or resource partitioning to avoid competition (Begon et al. 1986, Ricklefs 1990). Habitat, food, and time have been suggested to be the most important niche dimensions in resource partitioning between species (Pianka 1969, Schoener 1986). If the species fail to differentiate in ...
3. Ecosystems Booklet TN
... e.g. method of applying solution; length of time spent counting; time of day/light intensity; soil moisture/rainfall/humidity; method to ensure no double counting; CREDIT any two correct answers (c) means different/mean less in soil with plants removed; DO NOT CREDIT if difference in mean stated to ...
... e.g. method of applying solution; length of time spent counting; time of day/light intensity; soil moisture/rainfall/humidity; method to ensure no double counting; CREDIT any two correct answers (c) means different/mean less in soil with plants removed; DO NOT CREDIT if difference in mean stated to ...
Pathogen Spillover in Disease Epidemics
... their dynamics has become increasingly important for human health, for domestic animal production, and for wildlife and plants of conservation significance. While some of these generalist pathogens may have host-specific strains or races, many are true generalists. In most multiple host systems, all ...
... their dynamics has become increasingly important for human health, for domestic animal production, and for wildlife and plants of conservation significance. While some of these generalist pathogens may have host-specific strains or races, many are true generalists. In most multiple host systems, all ...
An experimental demonstration of direct behavioural
... We conducted trials between 1000 and 1700 hours in an order that ensured a similar number of trials in the morning and afternoon for intraspecific and interspecific pairs. We observed behaviour from behind a one-way mirror, and recorded it on to audiotape using a dictaphone. To distinguish individua ...
... We conducted trials between 1000 and 1700 hours in an order that ensured a similar number of trials in the morning and afternoon for intraspecific and interspecific pairs. We observed behaviour from behind a one-way mirror, and recorded it on to audiotape using a dictaphone. To distinguish individua ...
The Global, Phenomena Complex - Woods Hole Oceanographic
... liferation results from a combination of physical, chemical, and biological mechanisms and their interactions with other components of the food web that are for the most part poorly understood. Most HABs are dinoflagellates or cyanobacteria, but other classes of algae, including diatoms, have member ...
... liferation results from a combination of physical, chemical, and biological mechanisms and their interactions with other components of the food web that are for the most part poorly understood. Most HABs are dinoflagellates or cyanobacteria, but other classes of algae, including diatoms, have member ...
A crucial step toward realism: responses to climate
... and both track optimal temperatures through dispersal. In (B), ‘Local adaptation,’ both species adapt locally to temperature change; note altered interior colors. In (C), Species sorting prevents an evolutionary response. We assume that the pink species disperses but does not evolve (similar to A), ...
... and both track optimal temperatures through dispersal. In (B), ‘Local adaptation,’ both species adapt locally to temperature change; note altered interior colors. In (C), Species sorting prevents an evolutionary response. We assume that the pink species disperses but does not evolve (similar to A), ...
- Wiley Online Library
... and both track optimal temperatures through dispersal. In (B), ‘Local adaptation,’ both species adapt locally to temperature change; note altered interior colors. In (C), Species sorting prevents an evolutionary response. We assume that the pink species disperses but does not evolve (similar to A), ...
... and both track optimal temperatures through dispersal. In (B), ‘Local adaptation,’ both species adapt locally to temperature change; note altered interior colors. In (C), Species sorting prevents an evolutionary response. We assume that the pink species disperses but does not evolve (similar to A), ...
Social and landscape effects on food webs: a
... [9] for pitcher plants and [10] for beetles). In butterfly associated metacommunities, van Nouhuys and Hanski [8] present the competition/dispersal trade-off and several other multi-species interactions linking the community and the landscape level. For pitcher plant metacommunities, it was shown ho ...
... [9] for pitcher plants and [10] for beetles). In butterfly associated metacommunities, van Nouhuys and Hanski [8] present the competition/dispersal trade-off and several other multi-species interactions linking the community and the landscape level. For pitcher plant metacommunities, it was shown ho ...
Within outlying mean indexes: refining the OMI analysis for
... Gimaret-Carpentier (2000)), which may greatly vary between each subset, impacting the calculations of indexes such as marginalities and tolerances (Fig. 2A). As a result, the observed changes in marginalities can be partly attributed to temporal (annual for Grüner et al. (2011) and seasonal for Mé ...
... Gimaret-Carpentier (2000)), which may greatly vary between each subset, impacting the calculations of indexes such as marginalities and tolerances (Fig. 2A). As a result, the observed changes in marginalities can be partly attributed to temporal (annual for Grüner et al. (2011) and seasonal for Mé ...
Ver PDF - Centro IDEAL
... storms can remove large amounts of sand from the beach, hold them in suspension, and then deposit them offshore [10,11]. This swell-related erosion result leads to a decrease in beach profile of wave-exposed sandy shores during late summer and throughout winter (see ref. [6] for southern Chile). San ...
... storms can remove large amounts of sand from the beach, hold them in suspension, and then deposit them offshore [10,11]. This swell-related erosion result leads to a decrease in beach profile of wave-exposed sandy shores during late summer and throughout winter (see ref. [6] for southern Chile). San ...
The piglet case: commensalism as a distinct category of intraspecific
... Relationships among organisms are separated into two main categories: interspecific (between species) and intraspecific (within species). Interspecific relationships, termed symbiosis (Martin & Schwab 2013), are considered very diverse, and include protocooperation (+/+; facultative, not obligatory, ...
... Relationships among organisms are separated into two main categories: interspecific (between species) and intraspecific (within species). Interspecific relationships, termed symbiosis (Martin & Schwab 2013), are considered very diverse, and include protocooperation (+/+; facultative, not obligatory, ...
Integrated Ecological- Economic Models
... modeling in Section 2, the structure of the paper is to begin with the most popular ecological models of species interactions and show how they are used in economics. Then the point is made that these models lack behavioral microfoundations of the type economists pioneered with respect to human beha ...
... modeling in Section 2, the structure of the paper is to begin with the most popular ecological models of species interactions and show how they are used in economics. Then the point is made that these models lack behavioral microfoundations of the type economists pioneered with respect to human beha ...
eports - University of Rhode Island
... herbivore and compare the effects of exotic and native competitors, we see that exotic focal herbivores respond similarly to native and exotic competitors in growth, survival, and development time, but they have higher growth rates when competing against a native (Fig. 2B). For native focal herbivor ...
... herbivore and compare the effects of exotic and native competitors, we see that exotic focal herbivores respond similarly to native and exotic competitors in growth, survival, and development time, but they have higher growth rates when competing against a native (Fig. 2B). For native focal herbivor ...
New Zealand Journal of Forestry Science
... decreasing abundance. Allee effects can arise from several different mechanisms and are capable of driving low-density populations to extinction. Strategies to eradicate newly established populations should focus on either enhancing Allee effects or suppressing populations below Allee thresholds suc ...
... decreasing abundance. Allee effects can arise from several different mechanisms and are capable of driving low-density populations to extinction. Strategies to eradicate newly established populations should focus on either enhancing Allee effects or suppressing populations below Allee thresholds suc ...
Multiple diversity–stability mechanisms enhance population and
... STABILITY IN AQUATIC FOOD WEBS ...
... STABILITY IN AQUATIC FOOD WEBS ...
A patch-dynamic framework for food web metacommunities
... web system being modelled, the need to represent more complex local network topologies may arise due to the operation of mechanisms that are known to allow for more than one species to locally occupy and feed on a single resource species (e.g. resource partitioning, keystone predation, etc.). The ba ...
... web system being modelled, the need to represent more complex local network topologies may arise due to the operation of mechanisms that are known to allow for more than one species to locally occupy and feed on a single resource species (e.g. resource partitioning, keystone predation, etc.). The ba ...
aggregated seed arrival alters plant diversity in
... whether using interacting particle systems, moment equations for spatial point processes or metapopulation models (Bolker et al. 2003). This is not to say that coexistence occurs under all conditions—as eventually the strongest competitor will exclude other species in the absence of life-history tra ...
... whether using interacting particle systems, moment equations for spatial point processes or metapopulation models (Bolker et al. 2003). This is not to say that coexistence occurs under all conditions—as eventually the strongest competitor will exclude other species in the absence of life-history tra ...
Food web structure of three guilds of natural enemies: predators
... [e.g. plants (Tilman 1982); intertidal invertebrates (Menge 1976; Paine 1984)] it is unlikely to play a significant role in contemporarily structuring communities of herbivorous insects. The latter often consist of species that are restricted to feeding on nonoverlapping sets of plant species and th ...
... [e.g. plants (Tilman 1982); intertidal invertebrates (Menge 1976; Paine 1984)] it is unlikely to play a significant role in contemporarily structuring communities of herbivorous insects. The latter often consist of species that are restricted to feeding on nonoverlapping sets of plant species and th ...
spatial habitat heterogeneity influences competition
... other extreme, patches may differ qualitatively from one another, and variation in habitat selection among species can reduce the probability of competitive exclusion (e.g., Schoener 1974). Structurally homogeneous habitats may consist of a mosaic of patches that vary with respect to quantitative fa ...
... other extreme, patches may differ qualitatively from one another, and variation in habitat selection among species can reduce the probability of competitive exclusion (e.g., Schoener 1974). Structurally homogeneous habitats may consist of a mosaic of patches that vary with respect to quantitative fa ...
Environment
... Environmental Terms • Niche – what a species does in its environment, it includes where it lives, what it does • Predators – Eat other things, natural selection increases the chances for an organism to be a better predator • Prey – Get eaten Some organisms are more successful than others. SUCCESSIO ...
... Environmental Terms • Niche – what a species does in its environment, it includes where it lives, what it does • Predators – Eat other things, natural selection increases the chances for an organism to be a better predator • Prey – Get eaten Some organisms are more successful than others. SUCCESSIO ...
The role of nurse plants in the restoration of degraded environments
... Francisco M Padilla* and Francisco I Pugnaire Traditional ecological models have focused mainly on competition between plants, but recent research has shown that some plants benefit from closely associated neighbors, a phenomenon known as facilitation. There is increasing experimental evidence sugge ...
... Francisco M Padilla* and Francisco I Pugnaire Traditional ecological models have focused mainly on competition between plants, but recent research has shown that some plants benefit from closely associated neighbors, a phenomenon known as facilitation. There is increasing experimental evidence sugge ...
Below-ground resources limit seedling growth in forest understories
... varying widely in shade tolerance to an increase in soil resources in shaded forest understories in northern Wisconsin, USA. In a 4-year experiment, trenching treatment was used to increase soil resource supply to 1-year old seedlings planted across a range of low light microenvironments. Specifical ...
... varying widely in shade tolerance to an increase in soil resources in shaded forest understories in northern Wisconsin, USA. In a 4-year experiment, trenching treatment was used to increase soil resource supply to 1-year old seedlings planted across a range of low light microenvironments. Specifical ...