Stoichiometric Constraints on Resource Use
... mass balance and homeostasis of elemental composition are satisfied (Goldman and Dennett 1991; Sterner and Elser 2002). Because of these homeostatic stoichiometric constraints, inorganic elements can be either taken up (immobilized) or excreted (mineralized) by decomposers, depending on whether the ...
... mass balance and homeostasis of elemental composition are satisfied (Goldman and Dennett 1991; Sterner and Elser 2002). Because of these homeostatic stoichiometric constraints, inorganic elements can be either taken up (immobilized) or excreted (mineralized) by decomposers, depending on whether the ...
Habitat Selection and Indirect Interactions in Fish Communities
... become piscivorous at larger sizes. Vendace is a pelagic species specialized in eating zooplankton. Vendace was expected to affect biotic interactions and habitat use of roach and perch, both directly and indirectly. I used monitoring data to examine how species distribution patterns, as well as pop ...
... become piscivorous at larger sizes. Vendace is a pelagic species specialized in eating zooplankton. Vendace was expected to affect biotic interactions and habitat use of roach and perch, both directly and indirectly. I used monitoring data to examine how species distribution patterns, as well as pop ...
Populations and Life Cycles - University of Hawaii at Hilo
... 2) Discuss why invasive species may thrive in their new habitat and out compete the native species. Things to consider are: 1- that invasive species may have no natural enemies - pigs, mongoose, and coqui are good examples 2- they often reproduce faster - pigs can recover from a 70% population loss ...
... 2) Discuss why invasive species may thrive in their new habitat and out compete the native species. Things to consider are: 1- that invasive species may have no natural enemies - pigs, mongoose, and coqui are good examples 2- they often reproduce faster - pigs can recover from a 70% population loss ...
Unifying sources and sinks in ecology andEarth sciences
... introduced in population and community ecology with a more distinct spatial connotation for local populations or habitats in which population persistence is due to immigration of individuals (sinks) and those from which these immigrants originate (sources) (Holt, 1984, 1985; Shmida & Ellner, 1984). ...
... introduced in population and community ecology with a more distinct spatial connotation for local populations or habitats in which population persistence is due to immigration of individuals (sinks) and those from which these immigrants originate (sources) (Holt, 1984, 1985; Shmida & Ellner, 1984). ...
Community structure and organization of tidepools
... have included pertinent studies on freshwater rockpools. Since both habitats represent environments with some similar conditions (e.g. isolated habitats with well-defined boundaries), the regulating factors of community organization may operate in a similar fashion. For the purposes of this review, ...
... have included pertinent studies on freshwater rockpools. Since both habitats represent environments with some similar conditions (e.g. isolated habitats with well-defined boundaries), the regulating factors of community organization may operate in a similar fashion. For the purposes of this review, ...
Native Bunchgrass and Invasive Weed Establishment in Low
... “degenerate.” Instead, I found Geno to be a top-shelf scientist, a fine mentor, and a very decent and generous person. His advice and patience helped bring this work to completion, and I am grateful for this education and the people with whom I’ve become acquainted in the process. This research was ...
... “degenerate.” Instead, I found Geno to be a top-shelf scientist, a fine mentor, and a very decent and generous person. His advice and patience helped bring this work to completion, and I am grateful for this education and the people with whom I’ve become acquainted in the process. This research was ...
Predator manipulation experiments: impacts on populations of
... not always have large detrimental effects on prey populations (Elton 1927). Other early studies indicated that predators often have coexisted with their prey for long periods and may kill only non-reproductive or surplus individuals that were destined to die in any case (the doomed-surplus hypothesi ...
... not always have large detrimental effects on prey populations (Elton 1927). Other early studies indicated that predators often have coexisted with their prey for long periods and may kill only non-reproductive or surplus individuals that were destined to die in any case (the doomed-surplus hypothesi ...
The Influence of Interspecific Competition and Other Factors on the
... barnacles and marking the position of each Chthainalus oln it with glass-marking ink. The positions of the corniers of the plate were marked by drilling small holes in the rock. Observations made in subsequent censuses were noted on a paper copy of the glass map. The study areas were chosen by searc ...
... barnacles and marking the position of each Chthainalus oln it with glass-marking ink. The positions of the corniers of the plate were marked by drilling small holes in the rock. Observations made in subsequent censuses were noted on a paper copy of the glass map. The study areas were chosen by searc ...
Communities - UNAM Sisal
... species found in particular localities (Clements 1916; Elton 1966). These surveys revealed some of the basic community patterns that continue to fascinate ecologists. In many temperate zone communities, a few species are much more common than others. The dominant species often play an important role ...
... species found in particular localities (Clements 1916; Elton 1966). These surveys revealed some of the basic community patterns that continue to fascinate ecologists. In many temperate zone communities, a few species are much more common than others. The dominant species often play an important role ...
PLANT-POLLINATOR NETWORKS: INCORPORATING INDIVIDUAL VARIATION AND FUNCTIONAL INFORMATION
... En els capı́tols 1 i 2 s’estudien les càrregues pol.lı́niques d’exemplars d’insectes pol.linitzadors en dues comunitats de muntanya a Mallorca i es construeixen xarxes on els nodes dels pol.linitzadors representen individus en lloc d’espècies. Aquesta aproximació permet considerar la variació in ...
... En els capı́tols 1 i 2 s’estudien les càrregues pol.lı́niques d’exemplars d’insectes pol.linitzadors en dues comunitats de muntanya a Mallorca i es construeixen xarxes on els nodes dels pol.linitzadors representen individus en lloc d’espècies. Aquesta aproximació permet considerar la variació in ...
Herbivore and predator diversity interactively affect ecosystem
... predator richness! contrast compared treatments with monocultures at both trophic levels to the treatment with polycultures at both trophic levels (e.g. Fontaine et al. 2006). The "grazer richness * predator richness! contrast assessed whether grazer richness effects were altered by predator richnes ...
... predator richness! contrast compared treatments with monocultures at both trophic levels to the treatment with polycultures at both trophic levels (e.g. Fontaine et al. 2006). The "grazer richness * predator richness! contrast assessed whether grazer richness effects were altered by predator richnes ...
When Does Alternative Food Promote Biological Pest
... affected by prey (or host) density and/or PPF. In general, three scenarios can be observed that differ in whether (A) adult performance (survival, attack, oviposition), (B) juvenile performance (survival, development) and (C) both adult and juvenile performance are affected by prey density. The diff ...
... affected by prey (or host) density and/or PPF. In general, three scenarios can be observed that differ in whether (A) adult performance (survival, attack, oviposition), (B) juvenile performance (survival, development) and (C) both adult and juvenile performance are affected by prey density. The diff ...
Effects of seagrass landscape structure, structural complexity and
... relationships between faunal densities and environmental variables varied greatly between species and between collection periods. In addition, species-specific correlations between faunal density and environmental variables generally were not consistent among the 4 collection periods. REI and seagra ...
... relationships between faunal densities and environmental variables varied greatly between species and between collection periods. In addition, species-specific correlations between faunal density and environmental variables generally were not consistent among the 4 collection periods. REI and seagra ...
Interactions of multiple predators with different foraging modes in an
... reducing capture success (Sih et al. 1998; Siddon and Witman 2004; Griswold and Lounibos 2006; Schmitz 2007). Neutral interactions between predators can occur if predator species are substitutable in that interspecific interactions are similar to intraspecific interactions (Schmitz 2007). The outcom ...
... reducing capture success (Sih et al. 1998; Siddon and Witman 2004; Griswold and Lounibos 2006; Schmitz 2007). Neutral interactions between predators can occur if predator species are substitutable in that interspecific interactions are similar to intraspecific interactions (Schmitz 2007). The outcom ...
Freshwater ciliates as ecophysiological model organisms – lessons
... & Boavida 1996). The mean number of eggs per clutch of the dominant cladoceran, D. pulicaria, ranged from 1.7 to 4.8; several females carried > 15 eggs in their brood pouch. The large clutch size, relative to rotifers, enable Daphnia to increase their population numbers rapidly and to colonize new e ...
... & Boavida 1996). The mean number of eggs per clutch of the dominant cladoceran, D. pulicaria, ranged from 1.7 to 4.8; several females carried > 15 eggs in their brood pouch. The large clutch size, relative to rotifers, enable Daphnia to increase their population numbers rapidly and to colonize new e ...
Love thy neighbor? reciprocal impacts between plant community
... effects may be particularly relevant: closely related plant species tend to share herbivores due to their similarity in defensive and nutritional traits (Pearse and Hipp 2009, Ness et al. 2011). Whether herbivores impose top-down regulation on plant communities that can lead to shifts in community s ...
... effects may be particularly relevant: closely related plant species tend to share herbivores due to their similarity in defensive and nutritional traits (Pearse and Hipp 2009, Ness et al. 2011). Whether herbivores impose top-down regulation on plant communities that can lead to shifts in community s ...
UNIVERSIDAD AUT ´ONOMA DE MADRID FACULTAD DE
... related in the most important manner to other organic beings, we must see that the range of the inhabitants in any country by no means exclusively depends on insensibly changing physical conditions, but in large part on the presence of other species, on which it depends, or by which it is destroyed, ...
... related in the most important manner to other organic beings, we must see that the range of the inhabitants in any country by no means exclusively depends on insensibly changing physical conditions, but in large part on the presence of other species, on which it depends, or by which it is destroyed, ...
Chapter 36 – Communities and Ecosystems
... d. Population distribution (Fig. 36.2) i. Clumped – organisms work together, resources are not evenly distributed ii. Uniform – territorial, scarce resources iii. Random – no social groups, good resources e. Survivorship curves (Fig. 36.3) i. Early loss ii. Constant loss iii. Late loss C. Human popu ...
... d. Population distribution (Fig. 36.2) i. Clumped – organisms work together, resources are not evenly distributed ii. Uniform – territorial, scarce resources iii. Random – no social groups, good resources e. Survivorship curves (Fig. 36.3) i. Early loss ii. Constant loss iii. Late loss C. Human popu ...
Aspects of Ecology and Adaptation with an Emphasis on hominoid
... information to be conjoined towards the end of devising a bigger, clearer picture of things past - such as is the quest of palaeoanthropologists and palaeoprimatologists alike. This thesis will endeavor to reveal the tremendous and varied insights the science of ecology can provide in relation to th ...
... information to be conjoined towards the end of devising a bigger, clearer picture of things past - such as is the quest of palaeoanthropologists and palaeoprimatologists alike. This thesis will endeavor to reveal the tremendous and varied insights the science of ecology can provide in relation to th ...
Topic 1
... The chemical reactions through which an organism build up or breaks down materials as it carries out its life processes is called: ...
... The chemical reactions through which an organism build up or breaks down materials as it carries out its life processes is called: ...
Bullfrog (Rana Catesbeiana) - Gt-ibma
... R. catesbeiana tadpoles that had overwintered were caught in the South Fork Eel near the confluence with Ten Mile Creek and transported to the site of the enclosures. Native tadpoles were collected as egg masses and recently hatched tadpoles at the experiment site. Bullfrog and R. boylii tadpoles we ...
... R. catesbeiana tadpoles that had overwintered were caught in the South Fork Eel near the confluence with Ten Mile Creek and transported to the site of the enclosures. Native tadpoles were collected as egg masses and recently hatched tadpoles at the experiment site. Bullfrog and R. boylii tadpoles we ...
