A comparison of avian use of high
... tent of general similarity in capture rates between sites. We also compared species richness between the two sites. We used the species diversity module in Ecosim v. 7.0 (Gotelli and Entsminger 2001) to calculate median species richness and 95% confidence intervals for each site with rarefaction cur ...
... tent of general similarity in capture rates between sites. We also compared species richness between the two sites. We used the species diversity module in Ecosim v. 7.0 (Gotelli and Entsminger 2001) to calculate median species richness and 95% confidence intervals for each site with rarefaction cur ...
mascarene islands, biology
... screw-pines (Pandanus spp), and trees such as Terminalia bentzoe (Combretaceae) were present from sea level to 200 m elevation in areas with less than 1000 mm average annual rainfall. This ecosystem was probably the habitat of some of the most spectacular endemic animals, in particular the now exti ...
... screw-pines (Pandanus spp), and trees such as Terminalia bentzoe (Combretaceae) were present from sea level to 200 m elevation in areas with less than 1000 mm average annual rainfall. This ecosystem was probably the habitat of some of the most spectacular endemic animals, in particular the now exti ...
Evolution, Biodiversity, and Population Ecology
... • The process of generating new species - A single species can generate multiple species • Allopatric speciation = species formation due to physical separation of populations - Can be separated by glaciers, rivers, mountains - The main mode of species creation Copyright © 2008 Pearson Education, Inc ...
... • The process of generating new species - A single species can generate multiple species • Allopatric speciation = species formation due to physical separation of populations - Can be separated by glaciers, rivers, mountains - The main mode of species creation Copyright © 2008 Pearson Education, Inc ...
Species Abundance, Not Diet Breadth, Drives the Persistence of the
... A second filtering step related to habitat affinity was necessary for New Jersey only. Many pollinator species are not positively associated with the native forest habitat type but instead are more abundant in human-disturbed habitats. This is true in forested biomes generally (Winfree et al. 2011), ...
... A second filtering step related to habitat affinity was necessary for New Jersey only. Many pollinator species are not positively associated with the native forest habitat type but instead are more abundant in human-disturbed habitats. This is true in forested biomes generally (Winfree et al. 2011), ...
Species Diversity of Seed-Eating Desert Rodents in
... dead traps. I had hoped that these traps would sample all species with approximately equal efficiency; however, some individuals of Dipodomys desert, the largest species, were able to break away from them. The traps were placed in sets of four (positioned as described by Brown and Lieberman 1973) sp ...
... dead traps. I had hoped that these traps would sample all species with approximately equal efficiency; however, some individuals of Dipodomys desert, the largest species, were able to break away from them. The traps were placed in sets of four (positioned as described by Brown and Lieberman 1973) sp ...
The relative contributions of species richness and species
... How species diversity influences ecosystem functioning has been the subject of many experiments and remains a key question for ecology and conservation biology. However, the fact that diversity cannot be manipulated without affecting species composition makes this quest methodologically challenging. ...
... How species diversity influences ecosystem functioning has been the subject of many experiments and remains a key question for ecology and conservation biology. However, the fact that diversity cannot be manipulated without affecting species composition makes this quest methodologically challenging. ...
Chapter 4 Lecture.notebook
... Although mustangs are not native to the United States, they exist in several western states on federally owned land. As an introduced species, what should be done with them? a) As an exotic species, they should immediately be removed and adopted or killed. b) Although they are an exotic species ...
... Although mustangs are not native to the United States, they exist in several western states on federally owned land. As an introduced species, what should be done with them? a) As an exotic species, they should immediately be removed and adopted or killed. b) Although they are an exotic species ...
Life histories
... Life History Continua Concept 7.2: Reproductive patterns can be categorized along several continua. Several classification schemes have been proposed to categorize the vast diversity of reproductive patterns. The schemes place patterns on continua with extremes at each end. ...
... Life History Continua Concept 7.2: Reproductive patterns can be categorized along several continua. Several classification schemes have been proposed to categorize the vast diversity of reproductive patterns. The schemes place patterns on continua with extremes at each end. ...
COMPETITION FOR HUMMINGBIRD POLLINATION SHAPES
... Iochrominae is a largely Andean clade, whose morphologically diverse species have been divided into seven genera (Fig. 1A). Only two species in the group are found outside the Andes: I. ellipticum (endemic to the Galapagos) and Acnistus arborescens, which has spread to Central America. Of the remain ...
... Iochrominae is a largely Andean clade, whose morphologically diverse species have been divided into seven genera (Fig. 1A). Only two species in the group are found outside the Andes: I. ellipticum (endemic to the Galapagos) and Acnistus arborescens, which has spread to Central America. Of the remain ...
What enables coexistence in plant communities? Weak versus
... lular automaton, inspired by the DivGame Simulator (Alonso and Solé, 2000). The generality of the model allows for applications to different communities with sessile organisms such as grasslands, forests or coral reefs. We focus here on forest communities, therefore our individual entity is a tree. ...
... lular automaton, inspired by the DivGame Simulator (Alonso and Solé, 2000). The generality of the model allows for applications to different communities with sessile organisms such as grasslands, forests or coral reefs. We focus here on forest communities, therefore our individual entity is a tree. ...
Rewilding Europe with large herbivores: insights from Africa
... • We don’t know our European species very well! • We lack novel, exciting, experiments • What we know is their ecology as it has been shaped by humans for many, many centuries ...
... • We don’t know our European species very well! • We lack novel, exciting, experiments • What we know is their ecology as it has been shaped by humans for many, many centuries ...
Using Network Analysis to infer impact of climate change on
... Chile; 3Rui Nabeiro Biodiversity Chair, CIBIO, University of Évora, Largo dos Colegiais, 7000 Évora, Portugal; ...
... Chile; 3Rui Nabeiro Biodiversity Chair, CIBIO, University of Évora, Largo dos Colegiais, 7000 Évora, Portugal; ...
Biology of the Central Desert of Oman
... mainly camels and goats, are also present in the central desert. Some are nomadic, such as the Harasis tribe on the Jiddat al-Harasis, while others have made permanent homes with help from the government and PDO. As a unit, I classify the central desert of Oman as an hyper-arid area which has no nat ...
... mainly camels and goats, are also present in the central desert. Some are nomadic, such as the Harasis tribe on the Jiddat al-Harasis, while others have made permanent homes with help from the government and PDO. As a unit, I classify the central desert of Oman as an hyper-arid area which has no nat ...
Qualitative Insight Into Public Knowledge of, and
... As for threats to the region’s biodiversity, the population of the Intermountain West continues to experience tremendous growth. Utah, in particular, has one of fastest growing populations in the nation. Since 1990, the number of Utahns increased by nearly 30% increasing from 1.7 million in 1990 to ...
... As for threats to the region’s biodiversity, the population of the Intermountain West continues to experience tremendous growth. Utah, in particular, has one of fastest growing populations in the nation. Since 1990, the number of Utahns increased by nearly 30% increasing from 1.7 million in 1990 to ...
Chapter 5: Ecology and evolution: Populations, communities, and
... Biological diversity, or biodiversity for short, is a catchall term meaning the sum total of all organisms in an area, taking into account the diversity of species, their genes, their populations, and their communities. A species is a particular type of organism, or more precisely, a population or g ...
... Biological diversity, or biodiversity for short, is a catchall term meaning the sum total of all organisms in an area, taking into account the diversity of species, their genes, their populations, and their communities. A species is a particular type of organism, or more precisely, a population or g ...
the usefulness of ecological niche concepts in understanding plant
... the life cycle to the favorable periods. The interaction of the ‘fluctuating niche’ with those niches proposed by Grubb (1977) increases the number of possible occurring niches in community. Future development of the concept This paper has shown that many studies have been done in order to prove the ...
... the life cycle to the favorable periods. The interaction of the ‘fluctuating niche’ with those niches proposed by Grubb (1977) increases the number of possible occurring niches in community. Future development of the concept This paper has shown that many studies have been done in order to prove the ...
Conceptual problems and scale limitations of defining ecological
... magnitude different. When all plants in a habitat are the focus, an application of the CI definition yields conflicts resulting from the scale of size differences among its members and their population sizes. ...
... magnitude different. When all plants in a habitat are the focus, an application of the CI definition yields conflicts resulting from the scale of size differences among its members and their population sizes. ...
Fact Sheet: "Can We Stop Aquatic Hitchhikers? Yes ..." (pdf)
... outcompete native species, ultimately Photo: Nick Spera, NYSG Launch Steward reducing species richness and abundance; increase organic and decaying material in the aquatic environment; and change food webs. European water chestnut, for example, can create oxygen dead zones, making areas unsuitable f ...
... outcompete native species, ultimately Photo: Nick Spera, NYSG Launch Steward reducing species richness and abundance; increase organic and decaying material in the aquatic environment; and change food webs. European water chestnut, for example, can create oxygen dead zones, making areas unsuitable f ...
Anthropogenic impacts on tropical forest biodiversity
... of these threats vary among the world’s major tropical forest regions (Corlett & Primack 2008). Primary drivers may also induce secondary effects, for example, altered disturbance dynamics (Barlow & Peres 2004). In this section, I discuss four major anthropogenic drivers of tropical biodiversity los ...
... of these threats vary among the world’s major tropical forest regions (Corlett & Primack 2008). Primary drivers may also induce secondary effects, for example, altered disturbance dynamics (Barlow & Peres 2004). In this section, I discuss four major anthropogenic drivers of tropical biodiversity los ...
The Ecological Significance of Mycorrhizae
... AM fungi did not have a significant effect on plant biomass in primary succession. They hypothesized that this was due to the notable lack of nutrients in the successional site. Titus and del Moral (1998) also hypothesized that AM fungi are not of great importance in primary succession. Other resear ...
... AM fungi did not have a significant effect on plant biomass in primary succession. They hypothesized that this was due to the notable lack of nutrients in the successional site. Titus and del Moral (1998) also hypothesized that AM fungi are not of great importance in primary succession. Other resear ...
Species–energy relationships and habitat complexity in bird
... that restricting the analyses to single habitat types controls for most of the variation in vegetational complexity, however, it should be noted that variation in NDVI within a habitat type still reflects changes in habitat structure (e.g. tall vs. short grass prairie) in addition to differences in ...
... that restricting the analyses to single habitat types controls for most of the variation in vegetational complexity, however, it should be noted that variation in NDVI within a habitat type still reflects changes in habitat structure (e.g. tall vs. short grass prairie) in addition to differences in ...
competition for hummingbird pollination shapes flower color
... Iochrominae is a largely Andean clade, whose morphologically diverse species have been divided into seven genera (Fig. 1A). Only two species in the group are found outside the Andes: I. ellipticum (endemic to the Galapagos) and Acnistus arborescens, which has spread to Central America. Of the remain ...
... Iochrominae is a largely Andean clade, whose morphologically diverse species have been divided into seven genera (Fig. 1A). Only two species in the group are found outside the Andes: I. ellipticum (endemic to the Galapagos) and Acnistus arborescens, which has spread to Central America. Of the remain ...
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.