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... in morphological characters. Mayr (1940) has proposed the designation ‘sibling species’ for species that are morphologically similar or identical …The theoretical interest of sibling species lies in that their existence shows that reproductive isolation may arise without divergence in morphological ...
... in morphological characters. Mayr (1940) has proposed the designation ‘sibling species’ for species that are morphologically similar or identical …The theoretical interest of sibling species lies in that their existence shows that reproductive isolation may arise without divergence in morphological ...
Ecology and the Biosphere Ecology - the study of the interactions
... Figure 50.2 Sample questions at different levels of ecology ...
... Figure 50.2 Sample questions at different levels of ecology ...
PowerPoint
... The hub of biology • As biologists, we seek not only to understand how a single organism works, but how organisms interact. • The same is true for genomes. • To see life clearly, we must understand how genomes relate to one another. • Within an individual (cell to cell, developmental changes in gen ...
... The hub of biology • As biologists, we seek not only to understand how a single organism works, but how organisms interact. • The same is true for genomes. • To see life clearly, we must understand how genomes relate to one another. • Within an individual (cell to cell, developmental changes in gen ...
Ecology Unit Organization
... This unit follows Big Idea #2: Biological systems utilize free energy and molecular building blocks to grow, to reproduce and to maintain dynamic homeostasis & Big Idea #4: Biological systems interact, and these systems and their interactions possess complex properties. The understandings of these b ...
... This unit follows Big Idea #2: Biological systems utilize free energy and molecular building blocks to grow, to reproduce and to maintain dynamic homeostasis & Big Idea #4: Biological systems interact, and these systems and their interactions possess complex properties. The understandings of these b ...
4.1 Ecosystems: Everything is Connected Objectives
... – Biosphere – an inclusive term for all of the life on Earth – Ecosystem – all of the organisms in a given area along with the physical factors in the area – Community – a group of various species that live in the same place and interact with one another – Species – a group of organisms that are clo ...
... – Biosphere – an inclusive term for all of the life on Earth – Ecosystem – all of the organisms in a given area along with the physical factors in the area – Community – a group of various species that live in the same place and interact with one another – Species – a group of organisms that are clo ...
14.2 Community Interactions
... – Mates • How does cooperation and competition among organisms differ from human cooperation and competition? ...
... – Mates • How does cooperation and competition among organisms differ from human cooperation and competition? ...
Lecture 37 - Ecology - Chapter 46 Niche Community
... photosynthetic bacteria living with them. Thats why most corals (except the deep sea variety), are in shallow water and colorful. “Bleaching” of corals is loss of their colorful photosynthetic partner and ...
... photosynthetic bacteria living with them. Thats why most corals (except the deep sea variety), are in shallow water and colorful. “Bleaching” of corals is loss of their colorful photosynthetic partner and ...
Core Idea LS2 Ecosystems: Interactions, Energy, and Dynamics
... migration of species into or out of the region speciation, the formation of new species tree canopy forest cataclysmic events, such as volcanic eruptions human activity resource extraction adverse land use patterns pollution introduction of nonnative species global climate change evolution behaviora ...
... migration of species into or out of the region speciation, the formation of new species tree canopy forest cataclysmic events, such as volcanic eruptions human activity resource extraction adverse land use patterns pollution introduction of nonnative species global climate change evolution behaviora ...
The Living World Learning Targets (Ch 3, 4, Biomes, 8)
... 1- I need help with this one. Post Rating ...
... 1- I need help with this one. Post Rating ...
No Slide Title
... • In Texas, standing crop of Lesser Siren greater than that of total of 7 species of fish in same habitat ...
... • In Texas, standing crop of Lesser Siren greater than that of total of 7 species of fish in same habitat ...
evolution 1
... The Darwinian view of life predicts that evolutionary transitions should leave signs in the fossil record ...
... The Darwinian view of life predicts that evolutionary transitions should leave signs in the fossil record ...
Gen Biology Exam 5 CH 30
... A.land subsidence including sinkhole formation B.loss of habitat for aquatic organisms C.saltwater intrusion D.both land subsidence including sinkhole formation and saltwater intrusion 35. Which of the following has biomes listed from those with the least amount of water available to the most amount ...
... A.land subsidence including sinkhole formation B.loss of habitat for aquatic organisms C.saltwater intrusion D.both land subsidence including sinkhole formation and saltwater intrusion 35. Which of the following has biomes listed from those with the least amount of water available to the most amount ...
Ch 8 Community Ecology
... A. Destruction of landscape by surface mining on private land B. Selective harvesting of trees by a timber company in a national forest C. Legislation of catch limits to avoid depletion of fish stocks in a shared lake D. Inadvertent destruction of beneficial species while attempting to control pests ...
... A. Destruction of landscape by surface mining on private land B. Selective harvesting of trees by a timber company in a national forest C. Legislation of catch limits to avoid depletion of fish stocks in a shared lake D. Inadvertent destruction of beneficial species while attempting to control pests ...
nsw scientific committee
... For Criterion 1 there must be a very large, large and moderate reduction in geographic distribution, respectively, for Critically Endangered, Endangered and Vulnerable. For Criterion 2 there must be a very highly, highly and moderately restricted geographic distribution (in combination with other fa ...
... For Criterion 1 there must be a very large, large and moderate reduction in geographic distribution, respectively, for Critically Endangered, Endangered and Vulnerable. For Criterion 2 there must be a very highly, highly and moderately restricted geographic distribution (in combination with other fa ...
Unit A * Biological Diversity
... identify examples of niches, and describe the role of variation in allowing closely related living things to survive in the same ecosystem identify the role of variation in species survival under changing environmental conditions describe examples of variation of characteristics within a species ...
... identify examples of niches, and describe the role of variation in allowing closely related living things to survive in the same ecosystem identify the role of variation in species survival under changing environmental conditions describe examples of variation of characteristics within a species ...
Succession
... structure of an area over time. While most people think first of succession in plant communities, associated animal communities also undergo succession. Consider the colonization of bare rock substrates by al ...
... structure of an area over time. While most people think first of succession in plant communities, associated animal communities also undergo succession. Consider the colonization of bare rock substrates by al ...
Unit 3: Plants and animals interact
... Unit 3: Plants and animals interact In this introductory study of ecology, students will learn about the ecology and climate of Barro Colorado Island (BCI), Panama and the ecology and climate of Milwaukee, Wisconsin. Within this context students will review how ecosystem and climate are determined ...
... Unit 3: Plants and animals interact In this introductory study of ecology, students will learn about the ecology and climate of Barro Colorado Island (BCI), Panama and the ecology and climate of Milwaukee, Wisconsin. Within this context students will review how ecosystem and climate are determined ...
Speciation & Patterns of Evolution
... – When a new species branches out from a parent species – evolutionary change and diversification resulting from the branching off of new taxa from common ancestral lineages ...
... – When a new species branches out from a parent species – evolutionary change and diversification resulting from the branching off of new taxa from common ancestral lineages ...
Value and Maintenance of Biodiversity
... • But systems with higher diversity and more kinds of interactions may be more buffered from fluctuations • Lack of data regarding the link between species-richness and ecosystem function ...
... • But systems with higher diversity and more kinds of interactions may be more buffered from fluctuations • Lack of data regarding the link between species-richness and ecosystem function ...
File
... Late successional plant species – trees If primary succession starts on land it is a xerosphere If it starts in water (a pond) it is a hydrosphere (2) Secondary Succession – when an existing community is destroyed but the SOIL REMAINS Ex: fire, flood, abandoned farmland, polluted streams O ...
... Late successional plant species – trees If primary succession starts on land it is a xerosphere If it starts in water (a pond) it is a hydrosphere (2) Secondary Succession – when an existing community is destroyed but the SOIL REMAINS Ex: fire, flood, abandoned farmland, polluted streams O ...
File
... • Diverse communities will be less impacted by hostspecific pathogens. • Low species diversity is characteristic of most ...
... • Diverse communities will be less impacted by hostspecific pathogens. • Low species diversity is characteristic of most ...
Chapter 7
... (h) When touched, snake caterpillar changes shape to look like head of snake. Fig. 7-8h, p. 153 ...
... (h) When touched, snake caterpillar changes shape to look like head of snake. Fig. 7-8h, p. 153 ...
Competition I
... -Look along the axis of each species. If each species reaches its K before it reaches k/α, then it will reach its own carrying capacity (K) before it can reach a density at which it would competitively exclude the other species (K/α). So, this dynamic will converge on coexistence – both species will ...
... -Look along the axis of each species. If each species reaches its K before it reaches k/α, then it will reach its own carrying capacity (K) before it can reach a density at which it would competitively exclude the other species (K/α). So, this dynamic will converge on coexistence – both species will ...
Ecological fitting
Ecological fitting is ""the process whereby organisms colonize and persist in novel environments, use novel resources or form novel associations with other species as a result of the suites of traits that they carry at the time they encounter the novel condition.” It can be understood as a situation in which a species' interactions with its biotic and abiotic environment seem to indicate a history of coevolution, when in actuality the relevant traits evolved in response to a different set of biotic and abiotic conditions. The simplest form of ecological fitting is resource tracking, in which an organism continues to exploit the same resources, but in a new host or environment. In this framework, the organism occupies a multidimensional operative environment defined by the conditions in which it can persist, similar to the idea of the Hutchinsonian niche. In this case, a species can colonize new environments (e.g. an area with the same temperature and water regime) and/or form new species interactions (e.g. a parasite infecting a new host) which can lead to the misinterpretation of the relationship as coevolution, although the organism has not evolved and is continuing to exploit the same resources it always has. The more strict definition of ecological fitting requires that a species encounter an environment or host outside of its original operative environment and obtain realized fitness based on traits developed in previous environments that are now co-opted for a new purpose. This strict form of ecological fitting can also be expressed either as colonization of new habitat or the formation of new species interactions.