Endemic predators, invasive prey and native diversity
... treatment plots. Fences and exclosures were maintained every day and checked every night for toads inside the fence. In all plots and sampling sessions, ant diversity and Anoplolepis abundance—as the only invasive species present—were determined with four sampling plates per plot, baited with tuna a ...
... treatment plots. Fences and exclosures were maintained every day and checked every night for toads inside the fence. In all plots and sampling sessions, ant diversity and Anoplolepis abundance—as the only invasive species present—were determined with four sampling plates per plot, baited with tuna a ...
Powerpoint
... grasslands because environmental conditions (rainfall amount and timing) varies greatly from year to year. Variable conditions mean that the best competitor varies from year-to-year as well. ...
... grasslands because environmental conditions (rainfall amount and timing) varies greatly from year to year. Variable conditions mean that the best competitor varies from year-to-year as well. ...
Frontiers of Ecology - Integrative Biology
... cannot be treated as independent units in their ecological roles. We know, for example, that ecological specialization is phylogenetically constrained (Futuyma and Mitter 1996, Webb 2000). A few studies have analyzed how shared species’ traits and historical biogeography combine to constrain and sha ...
... cannot be treated as independent units in their ecological roles. We know, for example, that ecological specialization is phylogenetically constrained (Futuyma and Mitter 1996, Webb 2000). A few studies have analyzed how shared species’ traits and historical biogeography combine to constrain and sha ...
Frontiers of Ecology
... cannot be treated as independent units in their ecological roles. We know, for example, that ecological specialization is phylogenetically constrained (Futuyma and Mitter 1996, Webb 2000). A few studies have analyzed how shared species’ traits and historical biogeography combine to constrain and sha ...
... cannot be treated as independent units in their ecological roles. We know, for example, that ecological specialization is phylogenetically constrained (Futuyma and Mitter 1996, Webb 2000). A few studies have analyzed how shared species’ traits and historical biogeography combine to constrain and sha ...
Online Resource Title: Supporting conservation with biodiversity
... to permanent settlements and cultivation cultivation, pastures, settlements, little used ...
... to permanent settlements and cultivation cultivation, pastures, settlements, little used ...
Regional and local impact on species diversity – from pattern to
... Keywords Diversity · Dispersal · Body size · Area · Species pool ...
... Keywords Diversity · Dispersal · Body size · Area · Species pool ...
Ambio 22 - Ecosystem Ecology: The CBL Gonzo Group
... to support food webs. Recent measurements indicate that nutrient loading rates and algal production rates vary among years by at least a factor of two in the Chesapeake Bay. In addition. the amount of freshwater entertng the system is the prlmary factor determining the degree to which estuaries are ...
... to support food webs. Recent measurements indicate that nutrient loading rates and algal production rates vary among years by at least a factor of two in the Chesapeake Bay. In addition. the amount of freshwater entertng the system is the prlmary factor determining the degree to which estuaries are ...
Diversity meets decomposition
... pool, thus supporting complex detritus-based food webs that determine the critical balance between carbon mineralization and sequestration. How will changes in biodiversity affect this vital component of ecosystem functioning? Based on our analysis of concepts and experiments of leaf decomposition i ...
... pool, thus supporting complex detritus-based food webs that determine the critical balance between carbon mineralization and sequestration. How will changes in biodiversity affect this vital component of ecosystem functioning? Based on our analysis of concepts and experiments of leaf decomposition i ...
Global Biodiversity Outlook 3
... the biological capacity of the Earth by a wider margin than at the time the 2010 target was agreed. The loss of biodiversity is an issue of profound concern for its own sake. Biodiversity also underpins the functioning of ecosystems which provide a wide range of services to human societies. Its cont ...
... the biological capacity of the Earth by a wider margin than at the time the 2010 target was agreed. The loss of biodiversity is an issue of profound concern for its own sake. Biodiversity also underpins the functioning of ecosystems which provide a wide range of services to human societies. Its cont ...
Has the debate over genetics and extinction of island endemics truly
... species, the core message in Frankham’s papers is the need to manage inbreeding and loss of genetic diversity. The sensible reply to these two arguments is to simply acknowledge that both take-home messages are important, and to get on with saving what is left of our threatened species. However, suc ...
... species, the core message in Frankham’s papers is the need to manage inbreeding and loss of genetic diversity. The sensible reply to these two arguments is to simply acknowledge that both take-home messages are important, and to get on with saving what is left of our threatened species. However, suc ...
Fine-scale community and genetic structure are tightly linked in
... greater levels of species diversity observed in genetically diverse communities, Whitlock et al. [37] tracked the performance of individual genotypes of six species in these communities directly, using molecular markers. This work revealed that mean genotype abundance in all but one of these species ...
... greater levels of species diversity observed in genetically diverse communities, Whitlock et al. [37] tracked the performance of individual genotypes of six species in these communities directly, using molecular markers. This work revealed that mean genotype abundance in all but one of these species ...
CHOOSING THE APPROPRIATE SCALE OF RESERVES FOR
... programs exist for identifying species at risk. International conservation organizations identify species as vulnerable, threatened, or endangered (62, 171). Mace & Lande (78) have incorporated quantitative measures of threat into these categories. Additional work continues to fine-tune these genera ...
... programs exist for identifying species at risk. International conservation organizations identify species as vulnerable, threatened, or endangered (62, 171). Mace & Lande (78) have incorporated quantitative measures of threat into these categories. Additional work continues to fine-tune these genera ...
Managing proteCted areas For BiologiCal diversitY and
... Box 21.1 Key definitions Biological diversity, or biodiversity for short, means the variability among living organisms from all sources including terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between spec ...
... Box 21.1 Key definitions Biological diversity, or biodiversity for short, means the variability among living organisms from all sources including terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between spec ...
ppt
... “The extraordinary diversity of the terrestrial fauna, which is much greater than that of the marine fauna, is clearly due largely to the diversity provided by terrestrial plants… on the whole the problem still remains, but in the new form: Why are there so many kinds of plants?” Hutchinson (1959) “ ...
... “The extraordinary diversity of the terrestrial fauna, which is much greater than that of the marine fauna, is clearly due largely to the diversity provided by terrestrial plants… on the whole the problem still remains, but in the new form: Why are there so many kinds of plants?” Hutchinson (1959) “ ...
New Zealand Biodiversity Action Plan
... help assess and address questions about the natural and urban environments, including New Zealand’s indigenous biodiversity. In 2015, the first national synthesis report, Environment Aotearoa, was produced in a new regular series that tells us what state our environment is in, why it is like that, a ...
... help assess and address questions about the natural and urban environments, including New Zealand’s indigenous biodiversity. In 2015, the first national synthesis report, Environment Aotearoa, was produced in a new regular series that tells us what state our environment is in, why it is like that, a ...
Ecosystem engineering and biodiversity in coastal sediments
... been a growing recognition of the importance of facilitative interactions for understanding community structure and thereby the local biodiversity in stressful environments, with facilitation generally being due to ecosystem engineering species (Bruno et al. 2003). Whilst Hacker and Gaines (1997) em ...
... been a growing recognition of the importance of facilitative interactions for understanding community structure and thereby the local biodiversity in stressful environments, with facilitation generally being due to ecosystem engineering species (Bruno et al. 2003). Whilst Hacker and Gaines (1997) em ...
Life 9e - Garvness
... Bloom’s Category: 2. Understanding 23. Which of the following statements about habitat corridors is true? a. They are places where an endangered species can live and breed. b. They are usually used in captive breeding studies. c. Their presence mitigates the deleterious effects of habitat fragmenta ...
... Bloom’s Category: 2. Understanding 23. Which of the following statements about habitat corridors is true? a. They are places where an endangered species can live and breed. b. They are usually used in captive breeding studies. c. Their presence mitigates the deleterious effects of habitat fragmenta ...
Factors Determining Forest Diversity and Biomass on a Tropical
... 11], ecologists are still without consensus on a satisfactory account for the various patterns found. Recent evidence suggests that, although diversity decreases at high elevations, the pattern of change is variable and can include a monotonic decrease in both plant and animal diversity [12,13], a h ...
... 11], ecologists are still without consensus on a satisfactory account for the various patterns found. Recent evidence suggests that, although diversity decreases at high elevations, the pattern of change is variable and can include a monotonic decrease in both plant and animal diversity [12,13], a h ...
Ch5WithgottPPT2
... Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
... Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
73252-05_Lecture_3e
... Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
... Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings ...
Global ecological impacts of invasive species in aquatic ecosystems
... We conducted a literature search on Scopus (http://www.scopus.com/) for the terms: (invas* OR alien OR non-native OR exotic) AND (lake OR river OR estuary OR wetland OR reservoir) AND (impact OR effect). We included all published records up until 24 February 2014 within the subject areas of agricult ...
... We conducted a literature search on Scopus (http://www.scopus.com/) for the terms: (invas* OR alien OR non-native OR exotic) AND (lake OR river OR estuary OR wetland OR reservoir) AND (impact OR effect). We included all published records up until 24 February 2014 within the subject areas of agricult ...
SALCC indicator recommendations
... This index provides an indicator of connectivity from the perspective of multiple species with different home range sizes and connectivity requirements, is being modeled through a SALCC funded project, and resonates with a diversity of audiences. Species in the index include: Black Bear, Timber “Can ...
... This index provides an indicator of connectivity from the perspective of multiple species with different home range sizes and connectivity requirements, is being modeled through a SALCC funded project, and resonates with a diversity of audiences. Species in the index include: Black Bear, Timber “Can ...
mitigating the impacts of human land
... FOCUS ON LARGE MIGRATORY HERBIVORES." (2016). http://digitalrepository.unm.edu/biol_etds/152 ...
... FOCUS ON LARGE MIGRATORY HERBIVORES." (2016). http://digitalrepository.unm.edu/biol_etds/152 ...
View as PDF - Montana State University
... strong empirical support that species’ responses to the experimental manipulations conform to our expectations about resource and consumer limitation (17–19). For example, competitive ability of 27 grassland species was negatively correlated with their increase in abundance along a fertilization gra ...
... strong empirical support that species’ responses to the experimental manipulations conform to our expectations about resource and consumer limitation (17–19). For example, competitive ability of 27 grassland species was negatively correlated with their increase in abundance along a fertilization gra ...
Biodiversity
Global Biodiversity is the variety of different types of life found on Earth and the variations within species. It is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, ecosystem variation, or species variation (number of species) within an area, biome, or planet. Terrestrial biodiversity tends to be highest near the equator, which seems to be the result of the warm climate and high primary productivity. Biodiversity is not distributed evenly on Earth. It is the richest in the tropics. Marine biodiversity tends to be highest along coasts in the Western Pacific, where sea surface temperature is highest and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time but will be likely to slow in the future.The number and variety of plants, animals and other organisms that exist is known as biodiversity. It is an essential component of nature and it ensures the survival of human species by providing food, fuel, shelter, medicines and other resources to mankind. The richness of biodiversity depends on the climatic conditions and area of the region. All species of plants taken together are known as flora and about 70,000 species of plants are known till date. All species of animals taken together are known as fauna which includes birds, mammals, fish, reptiles, insects, crustaceans, molluscs, etc.Rapid environmental changes typically cause mass extinctions. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).The age of the Earth is about 4.54 billion years old. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old metasedimentary rocks discovered in Western Greenland. Since life began on Earth, five major mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic eon (the last 540 million years) marked a rapid growth in biodiversity via the Cambrian explosion—a period during which the majority of multicellular phyla first appeared. The next 400 million years included repeated, massive biodiversity losses classified as mass extinction events. In the Carboniferous, rainforest collapse led to a great loss of plant and animal life. The Permian–Triassic extinction event, 251 million years ago, was the worst; vertebrate recovery took 30 million years. The most recent, the Cretaceous–Paleogene extinction event, occurred 65 million years ago and has often attracted more attention than others because it resulted in the extinction of the dinosaurs.The period since the emergence of humans has displayed an ongoing biodiversity reduction and an accompanying loss of genetic diversity. Named the Holocene extinction, the reduction is caused primarily by human impacts, particularly habitat destruction. Conversely, biodiversity impacts human health in a number of ways, both positively and negatively.The United Nations designated 2011–2020 as the United Nations Decade on Biodiversity.