the star wars library published by del rey books
... spoken language. Most primitive tribal species have this designation; it does not imply that a species is civilized to the point of space travel. Semi-sentient: The semi-sentient designation implies that a race has some reasoning ability, but cannot grasp elevated or abstract concepts. In many cases ...
... spoken language. Most primitive tribal species have this designation; it does not imply that a species is civilized to the point of space travel. Semi-sentient: The semi-sentient designation implies that a race has some reasoning ability, but cannot grasp elevated or abstract concepts. In many cases ...
ppt - eweb.furman.edu
... For example, the transition in community type at a ‘serpentine boundary’. Serpentine soils have very high chromium, nickel, and magnesium. There is usually an abrupt change in soil concentrations, creating an abrupt change in community type. ...
... For example, the transition in community type at a ‘serpentine boundary’. Serpentine soils have very high chromium, nickel, and magnesium. There is usually an abrupt change in soil concentrations, creating an abrupt change in community type. ...
predicting species` geographic distributions based on
... able to maintain populations without immigration. Hutchinson (1959) provided the valuable distinction between the fundamental niche, which is the range of theoretical possibilities, and the realized niche (that part which is actually occupied, given interactions with other species such as competitio ...
... able to maintain populations without immigration. Hutchinson (1959) provided the valuable distinction between the fundamental niche, which is the range of theoretical possibilities, and the realized niche (that part which is actually occupied, given interactions with other species such as competitio ...
Commensalism
... Balanus’ realized niche: middle zone, limited from upper by competition, lower by predation ...
... Balanus’ realized niche: middle zone, limited from upper by competition, lower by predation ...
Learning about nematodes
... survival. They represent about 20% of the described species (4,000 among 20,000) within the phylum Nematoda. As with free-living nematodes, relatively little is known about most plant-parasitic species, this despite the enormous damage that they cause in Agriculture. This has led to their being refe ...
... survival. They represent about 20% of the described species (4,000 among 20,000) within the phylum Nematoda. As with free-living nematodes, relatively little is known about most plant-parasitic species, this despite the enormous damage that they cause in Agriculture. This has led to their being refe ...
Lugo et al. 2012 - Penn State University
... prints, but disappeared with canopy closure, whereas artificial substrates such as pipes provided nest sites for other native anurans in 40-year-old novel forests (Herrera Montes, 2008). Notably, the richness and relative abundance of amphibian and reptile species in these novel forests was similar ...
... prints, but disappeared with canopy closure, whereas artificial substrates such as pipes provided nest sites for other native anurans in 40-year-old novel forests (Herrera Montes, 2008). Notably, the richness and relative abundance of amphibian and reptile species in these novel forests was similar ...
BCB341_Chapter12_restoration
... natural process (eg: lightning-triggered fires) In this case, recovery to a stable climax community raises the biological diversity briefly and undergoes a process of succession Some systems may be so damaged that they are unable to recover by themselves: Mine sites/dumps – high erosion rate, ...
... natural process (eg: lightning-triggered fires) In this case, recovery to a stable climax community raises the biological diversity briefly and undergoes a process of succession Some systems may be so damaged that they are unable to recover by themselves: Mine sites/dumps – high erosion rate, ...
Ecosystems Notes
... offer recreation in the lakes that form behind the dams. Lakes, rivers, and the ocean contain sources of food and minerals. Earth is 71% water with 3% freshwater. Since much of the freshwater is in the form of ice, very little is left as “usable” freshwater for ...
... offer recreation in the lakes that form behind the dams. Lakes, rivers, and the ocean contain sources of food and minerals. Earth is 71% water with 3% freshwater. Since much of the freshwater is in the form of ice, very little is left as “usable” freshwater for ...
The information in this document covers the IB syllabus for topic 5
... Food Supply: animals are heterotrophs another reason for high animal diversity in the rainforest Territory: for feeding, mating & protecting young territoriality may be seasonal Niche & The Principle of Competitive Exclusion Niche = the status of an organism within its environment and commun ...
... Food Supply: animals are heterotrophs another reason for high animal diversity in the rainforest Territory: for feeding, mating & protecting young territoriality may be seasonal Niche & The Principle of Competitive Exclusion Niche = the status of an organism within its environment and commun ...
Gringos en el bosque: introduced tree invasion in a
... gaps with native species, browsing by introduced deer, unfavorable soil, allelopathy, and natural enemies or other idiosyncratic factors for particular species. The absence of substantial invasion so far is no guarantee against future invasion, particularly if some major natural or anthropogenous di ...
... gaps with native species, browsing by introduced deer, unfavorable soil, allelopathy, and natural enemies or other idiosyncratic factors for particular species. The absence of substantial invasion so far is no guarantee against future invasion, particularly if some major natural or anthropogenous di ...
Organism Interactions and Population Dynamics 1. Which of the
... web, the owl population would be negatively affected since they would no longer be able to feed on frogs. The insect population, on the other hand, would be positively affected since they would no longer be eaten by frogs. 25. The biological interaction in which one organism (the predator) hunts, ki ...
... web, the owl population would be negatively affected since they would no longer be able to feed on frogs. The insect population, on the other hand, would be positively affected since they would no longer be eaten by frogs. 25. The biological interaction in which one organism (the predator) hunts, ki ...
SOME MORPHOLOGICAL ASPECTS OF THE ADAPTIVE
... It is at a local level where most of the «classical» examples of adaptive radiation have been studied and where the so-called island laboratory plays an important role. Most definitions of the phenomenon have been proposed by island biologists such as Carlquist (1974) who presents adaptive radiation ...
... It is at a local level where most of the «classical» examples of adaptive radiation have been studied and where the so-called island laboratory plays an important role. Most definitions of the phenomenon have been proposed by island biologists such as Carlquist (1974) who presents adaptive radiation ...
Chapter 13 - Restoration
... natural process (eg: lightning-triggered fires) In this case, recovery to a stable climax community raises the biological diversity briefly and undergoes a process of succession Some systems may be so damaged that they are unable to recover by themselves: ...
... natural process (eg: lightning-triggered fires) In this case, recovery to a stable climax community raises the biological diversity briefly and undergoes a process of succession Some systems may be so damaged that they are unable to recover by themselves: ...
An approach to the Black Stork (Ciconia nigra) status in Indochina
... There are not relevant references about the Black Stork in Myanmar in the classical bibliography (Del Hoyo et al. 1.992; Hancock et al. 1.992). However, nowadays, the Black Stork is a common wintering species in the North and West of Myanmar, at least from the end of nineties, though the number of i ...
... There are not relevant references about the Black Stork in Myanmar in the classical bibliography (Del Hoyo et al. 1.992; Hancock et al. 1.992). However, nowadays, the Black Stork is a common wintering species in the North and West of Myanmar, at least from the end of nineties, though the number of i ...
A PENGUIN SPECIES EXTINCT 500 YEARS AGO
... Tell students that it was commonly thought that yellow-eyed - and later, this, along with farming, penguin were hunted by Maori land clearance and introduced pests are the reasons for them being endangered today – but recent genetic (DNA) research into the hoiho by a team of scientists from Ota ...
... Tell students that it was commonly thought that yellow-eyed - and later, this, along with farming, penguin were hunted by Maori land clearance and introduced pests are the reasons for them being endangered today – but recent genetic (DNA) research into the hoiho by a team of scientists from Ota ...
Download poster as a PDF file
... Paul D. Krushelnycky Department of Plant and Environmental Protection Sciences, University of Hawaii, Manoa ...
... Paul D. Krushelnycky Department of Plant and Environmental Protection Sciences, University of Hawaii, Manoa ...
AP Biology
... ___12) In a hypothetical food chain consisting of grass, grasshoppers, sparrows, and hawks, the grasshoppers are A) primary consumers. C) secondary consumers. B) primary producers. D) secondary producers. ___13) In a food chain consisting of phytoplankton → zooplankton → fish → fishermen, the fisher ...
... ___12) In a hypothetical food chain consisting of grass, grasshoppers, sparrows, and hawks, the grasshoppers are A) primary consumers. C) secondary consumers. B) primary producers. D) secondary producers. ___13) In a food chain consisting of phytoplankton → zooplankton → fish → fishermen, the fisher ...
Wild boars as seed dispersal agents of exotic plants from
... Some large omnivorous mammals serve as effective dispersal vectors of plant seeds that are adapted for dispersal through endozoochory or epizoochory. Seed dispersal by native wild boars (Sus scrofa lybicus) was investigated at Ramat-Hanadiv Park in central Israel by controlled germination, in a gree ...
... Some large omnivorous mammals serve as effective dispersal vectors of plant seeds that are adapted for dispersal through endozoochory or epizoochory. Seed dispersal by native wild boars (Sus scrofa lybicus) was investigated at Ramat-Hanadiv Park in central Israel by controlled germination, in a gree ...
non-native genotypes - UC Natural Reserve System
... (species and genotypes). Similar events have occurred with animals. 2) Restoration to improve the Reserve's ecological state; removal of exotics and reintroduction of native species, or reintroduction of extirpated genes or genotypes. The scale may be sufficiently large that commercial sources are u ...
... (species and genotypes). Similar events have occurred with animals. 2) Restoration to improve the Reserve's ecological state; removal of exotics and reintroduction of native species, or reintroduction of extirpated genes or genotypes. The scale may be sufficiently large that commercial sources are u ...
the evolution of an invasive plant
... in European and North American populations. Silene is particularly suitable for this type of investigation because of its geographically dependent set of interactions with enemies (Wolfe 2002). The plant is attacked by both generalist (florivores and aphids) and specialist (fruit predator [Hadena bi ...
... in European and North American populations. Silene is particularly suitable for this type of investigation because of its geographically dependent set of interactions with enemies (Wolfe 2002). The plant is attacked by both generalist (florivores and aphids) and specialist (fruit predator [Hadena bi ...
Island Biogeography - University of Windsor
... the arrival of a single female with eggs on one of the islands, strong selection for females with less strict mate selection genes were more successful • Leading to a significant shift in gene frequencies allowing better adaptation to the new environment (Carson 2002) ...
... the arrival of a single female with eggs on one of the islands, strong selection for females with less strict mate selection genes were more successful • Leading to a significant shift in gene frequencies allowing better adaptation to the new environment (Carson 2002) ...
Biodiversity, ecosystem function, and resilience: ten
... keystone species is important because their loss may result in Implementation of the five pattern-oriented strategies a range of cascading changes throughout the ecosystem suggested above will result in heterogeneous production (Soulé et al. 2005). For example, if bats are lost from tropical landsca ...
... keystone species is important because their loss may result in Implementation of the five pattern-oriented strategies a range of cascading changes throughout the ecosystem suggested above will result in heterogeneous production (Soulé et al. 2005). For example, if bats are lost from tropical landsca ...
Scorpion diversity of the Central Andes in Argentina
... (Ochoa et al. 2011). This makes O. grismadoi very vulnerable under a climate change scenario, with an increase in temperature leading to a potential shrinkage of suitable habitat. In fact, Cerro Nevado is known to have other endemic species of high-altitude arthropods (e.g., carabid beetles, Roig-Ju ...
... (Ochoa et al. 2011). This makes O. grismadoi very vulnerable under a climate change scenario, with an increase in temperature leading to a potential shrinkage of suitable habitat. In fact, Cerro Nevado is known to have other endemic species of high-altitude arthropods (e.g., carabid beetles, Roig-Ju ...
Experimental evidence for apparent competition in a tropical forest
... leaf-miner species) we found significantly lower parasitism, and in one case (removal of the dipteran) we found significantly higher abundance a year after the manipulation. Our results suggest that apparent competition may be important in structuring tropical insect communities. Apparent competitio ...
... leaf-miner species) we found significantly lower parasitism, and in one case (removal of the dipteran) we found significantly higher abundance a year after the manipulation. Our results suggest that apparent competition may be important in structuring tropical insect communities. Apparent competitio ...
Phenotypic and genetic differentiation between native and
... 2003). Biological invasions are therefore regarded as one of the greatest current threats to global biodiversity (Sala et al. 2000). Moreover, some introduced species cause major economic problems in agriculture and forestry (Perrings et al. 2000; Pimentel et al. 2000). Because of these negative effe ...
... 2003). Biological invasions are therefore regarded as one of the greatest current threats to global biodiversity (Sala et al. 2000). Moreover, some introduced species cause major economic problems in agriculture and forestry (Perrings et al. 2000; Pimentel et al. 2000). Because of these negative effe ...
Introduced species
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.