Presentation
... 1. Study your survivor populations. a) Was 1 color of paper chip represented more than others in the first generation of survivors? _____ b) Were shades of that color or similar colors also present? ______ c) What, if any, change occurred between the 1st and 2nd, and again between the 2nd and 3rd ge ...
... 1. Study your survivor populations. a) Was 1 color of paper chip represented more than others in the first generation of survivors? _____ b) Were shades of that color or similar colors also present? ______ c) What, if any, change occurred between the 1st and 2nd, and again between the 2nd and 3rd ge ...
Neoconocephalus triops
... her eggs far down in the central spindle of leaves of high sugarcane. One egg-cluster, observed on Vieques Island, consisted of nine eggs, about half an inch long, light green color and considerably flattened by the pressure between the leaf-sheaths. Adults often hide far down in the leaf spindle of ...
... her eggs far down in the central spindle of leaves of high sugarcane. One egg-cluster, observed on Vieques Island, consisted of nine eggs, about half an inch long, light green color and considerably flattened by the pressure between the leaf-sheaths. Adults often hide far down in the leaf spindle of ...
Taninthayi Forest Corridor - UNESCO World Heritage Centre
... transition zone between Indo-Chinese and Sundaic flora and fauna give it a high diversity of both locally endemic and globally threatened species. This transition zone is recognized as one of the most biologically diverse regions in the world (Woodruff 2010). The series of range disjunctions that oc ...
... transition zone between Indo-Chinese and Sundaic flora and fauna give it a high diversity of both locally endemic and globally threatened species. This transition zone is recognized as one of the most biologically diverse regions in the world (Woodruff 2010). The series of range disjunctions that oc ...
Phylogenetic community ecology needs to take positive interactions
... community ecological structure. This field has particularly focused on habitat filtering and competition, the latter driving divergence and competitive exclusion. However, the effects of positive interactions among species of the same guild have rarely been considered in either empirical studies or ...
... community ecological structure. This field has particularly focused on habitat filtering and competition, the latter driving divergence and competitive exclusion. However, the effects of positive interactions among species of the same guild have rarely been considered in either empirical studies or ...
(Conilurus albipes) - Department of Environment, Land, Water
... The Rabbit-eared Tree-rat was nominated for listing under the Flora and Fauna Guarantee, but the nomination was rejected as invalid because the Committee believed there was no conclusive evidence that the species occurred in Victoria at the time of European settlement. The other species have been li ...
... The Rabbit-eared Tree-rat was nominated for listing under the Flora and Fauna Guarantee, but the nomination was rejected as invalid because the Committee believed there was no conclusive evidence that the species occurred in Victoria at the time of European settlement. The other species have been li ...
Ecological Interactions - Teacher Handout An example of a teacher
... b) Which two species occupied the same niche in this community? How do you know? A and B, since they eat the same food. c) Explain why no two species can occupy the same niche in a community for very long. Resources are limited, so one species will eventually outcompete the other, or both will go ex ...
... b) Which two species occupied the same niche in this community? How do you know? A and B, since they eat the same food. c) Explain why no two species can occupy the same niche in a community for very long. Resources are limited, so one species will eventually outcompete the other, or both will go ex ...
Redman & Scriber - OECOLOGIA 125: (2) 218
... We investigated interspecific competition in a study system involving the northern tiger swallowtail and the gypsy moth, feeding on quaking aspen. The northern tiger swallowtail, Papilio canadensis is native to North America. … P. canadensis … typically exhibits a strong preference for quaking aspen ...
... We investigated interspecific competition in a study system involving the northern tiger swallowtail and the gypsy moth, feeding on quaking aspen. The northern tiger swallowtail, Papilio canadensis is native to North America. … P. canadensis … typically exhibits a strong preference for quaking aspen ...
The Red Queen and the Court Jester
... For such analyses, the ideal is a complete species tree, a phylogenetic tree that contains all species living and extinct, plotted accurately against geologic time (4). Simple to say; hard to achieve. More commonly, incomplete trees have been used, with the risk of error in calculations of evolution ...
... For such analyses, the ideal is a complete species tree, a phylogenetic tree that contains all species living and extinct, plotted accurately against geologic time (4). Simple to say; hard to achieve. More commonly, incomplete trees have been used, with the risk of error in calculations of evolution ...
THERE`S A NEW KID IN TOWN – RAPID EVOLUTION OF A NATIVE
... Summary of the Article for the Teacher It is recommended that this not be used by students in place of reading the article. The researchers found six small islands in Florida that only were occupied by the native lizard species, Anolis carolinensis. On three of the islands they introduced an invasiv ...
... Summary of the Article for the Teacher It is recommended that this not be used by students in place of reading the article. The researchers found six small islands in Florida that only were occupied by the native lizard species, Anolis carolinensis. On three of the islands they introduced an invasiv ...
Common Name: COMMON MAP TURTLE Scientific Name
... (Graptemys pulchra) within the Coosa River drainage, but the latter can be distinguished by their prominent spiny keel on the carapace (except old adult females) and the large yellow or light-green blotch present on the head between and behind the eyes. Habitat: Large streams and rivers with an abun ...
... (Graptemys pulchra) within the Coosa River drainage, but the latter can be distinguished by their prominent spiny keel on the carapace (except old adult females) and the large yellow or light-green blotch present on the head between and behind the eyes. Habitat: Large streams and rivers with an abun ...
... abundance in several communities. Guo et al., analyzing 18 years of census data from permanent quadrats, found a negative relation between seed size and abundance (20), as have other short-term studies (15, 19, 21, 22), although this is not always the case (23, 24). The relations are typically trian ...
LiteratureRetrieve.aspx?ID=38285
... c) Plant numbers decline slowly over successive years so that it becomes a minor component of the vegetation d) Plant numbers decline rapidly over successive years so that only occasional plants can be found e) Don’t know Stands establishment tends to be associated with episodic events, creating an ...
... c) Plant numbers decline slowly over successive years so that it becomes a minor component of the vegetation d) Plant numbers decline rapidly over successive years so that only occasional plants can be found e) Don’t know Stands establishment tends to be associated with episodic events, creating an ...
PPT Ch5 Population Ecology
... Identify some of the factors that could cause a change in the number of red crabs on Christmas Island. Predict what would happen to the red crab population as the result of a (1) drought, a (2) hurricane, or the introduction of a (3)predator to the ecosystem. ...
... Identify some of the factors that could cause a change in the number of red crabs on Christmas Island. Predict what would happen to the red crab population as the result of a (1) drought, a (2) hurricane, or the introduction of a (3)predator to the ecosystem. ...
Chapter 9 Outline
... combination of genetic traits from each parent. 3. There are three disadvantages to sexual reproduction. a. Males do not give birth; females have to produce twice the offspring to maintain the same number of young as an asexual organism. b. Chance of genetic errors/defects increase during splitting/ ...
... combination of genetic traits from each parent. 3. There are three disadvantages to sexual reproduction. a. Males do not give birth; females have to produce twice the offspring to maintain the same number of young as an asexual organism. b. Chance of genetic errors/defects increase during splitting/ ...
Predation, Mutualism, Commensalism, or Parasitism
... Plants have a large array of defense mechanisms that guard against entophytes and other fungi from becoming pathogens. These defenses include physical barriers like the tough cuticle lining the surfaces of plants or the bark on trees. Chemical barriers including various toxins and strong oxidizers m ...
... Plants have a large array of defense mechanisms that guard against entophytes and other fungi from becoming pathogens. These defenses include physical barriers like the tough cuticle lining the surfaces of plants or the bark on trees. Chemical barriers including various toxins and strong oxidizers m ...
RESEARCHING INVASIVE SPECIES 50 YEARS AFTER ELTON: A
... few studies, do not acquire a life of their own, eventually assuming a level of validity and generality that is unjustified on the basis of the actual data. Unfortunately, with common citation practices, it is very easy for this to happen. Lamenting the vitality and longevity of many inflated scient ...
... few studies, do not acquire a life of their own, eventually assuming a level of validity and generality that is unjustified on the basis of the actual data. Unfortunately, with common citation practices, it is very easy for this to happen. Lamenting the vitality and longevity of many inflated scient ...
Summary/Reflection of Dan Freedman`s article, Science Education
... 1) Some herbivores, especially seed eaters (granivores), act like predators in that they totally consume the organism. 2) Other animals, such as those that eat grasses (grazers) or leaves of other plants (browsers), may eat only part of the plant but may weaken it in the process. Symbiosis is a term ...
... 1) Some herbivores, especially seed eaters (granivores), act like predators in that they totally consume the organism. 2) Other animals, such as those that eat grasses (grazers) or leaves of other plants (browsers), may eat only part of the plant but may weaken it in the process. Symbiosis is a term ...
Prof Nico Smit Presentation
... - Game ranching is often perceived as “an easy farming system”. There are no camps and thus no grazing system to be applied. The truth, however, is that game ranching is far more complex than generally anticipated. ...
... - Game ranching is often perceived as “an easy farming system”. There are no camps and thus no grazing system to be applied. The truth, however, is that game ranching is far more complex than generally anticipated. ...
Vochysia guatemalensis Donn. Sm.
... birds and mammals, substantially reducing seed production. Propagation by pseudografting twigs and naked root seedlings has not been successful (Flores 1993b). However, research continues and Corea (1994) believes using juvenile succulent cuttings for rooting will prove successful. Chaverri and othe ...
... birds and mammals, substantially reducing seed production. Propagation by pseudografting twigs and naked root seedlings has not been successful (Flores 1993b). However, research continues and Corea (1994) believes using juvenile succulent cuttings for rooting will prove successful. Chaverri and othe ...
ecological species concept
... 12,000 years (the last time the lake dried up). What is the best way to test this hypothesis? A. Examine the fossil record in lake sediments. B. Look for morphological characteristics shared among Lake Victoria species that are distinct from the species present in other lakes. C. Look for genetic ch ...
... 12,000 years (the last time the lake dried up). What is the best way to test this hypothesis? A. Examine the fossil record in lake sediments. B. Look for morphological characteristics shared among Lake Victoria species that are distinct from the species present in other lakes. C. Look for genetic ch ...
Dasyornis brachypterus, Eastern Bristlebird
... and initial ecological research. Habitat mapping has been conducted at Jervis Bay. Research has been conducted over three years into the ecology and translocation of 50 birds from Bhewerre Peninsula to Beecroft Peninsula in the Jervis Bay region, including habitat selection by the species after fire ...
... and initial ecological research. Habitat mapping has been conducted at Jervis Bay. Research has been conducted over three years into the ecology and translocation of 50 birds from Bhewerre Peninsula to Beecroft Peninsula in the Jervis Bay region, including habitat selection by the species after fire ...
test - Scioly.org
... can outcompete and displace native species for biotic and abiotic resources. increase the diversity and therefore the stability of the ecosystem. are usually successful in colonizing the area. always spread because they encounter none of their natural predators. are always considered pests by ecolog ...
... can outcompete and displace native species for biotic and abiotic resources. increase the diversity and therefore the stability of the ecosystem. are usually successful in colonizing the area. always spread because they encounter none of their natural predators. are always considered pests by ecolog ...
V) Maintenance of species diversity
... A) Definition: the sequential, predictable change in species composition over time following a disturbance - Primary succession – succession starts from a completely empty community (i.e. bare substratum) such as that following glaciations or a volcanic eruption - Secondary succession – when the maj ...
... A) Definition: the sequential, predictable change in species composition over time following a disturbance - Primary succession – succession starts from a completely empty community (i.e. bare substratum) such as that following glaciations or a volcanic eruption - Secondary succession – when the maj ...
Interactive comment on “Disruption of metal ion homeostasis in soils
... high number of soil variables were measured in this study, which are all expected to be strongly affected by the N addition treatments, we can expect very high multicollinearity to occur in this dataset. This is indeed strongly suggested by the results of the ‘stepwise regression’ between soil pH an ...
... high number of soil variables were measured in this study, which are all expected to be strongly affected by the N addition treatments, we can expect very high multicollinearity to occur in this dataset. This is indeed strongly suggested by the results of the ‘stepwise regression’ between soil pH an ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.