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Summer 2015 packet
Summer 2015 packet

... Chapter 51: Behavioral Biology(Campbell) Chapter 39.3-39.6 (Urry) Timing and coordination of behaviors are regulated by various mechanisms and are important in natural selection. Individuals can act on information and communicate to others ...
Chapter 50 Conservation Biology
Chapter 50 Conservation Biology

... Overexploitation occurs when the number of individuals taken from a wild population is so great that the population becomes severely reduced in numbers. – Exotic Pets – Hunting / Poaching – Over-Harvesting Fisheries ...
Research: “Habitats as templates for the diversification of
Research: “Habitats as templates for the diversification of

... October 2004: Professor (rank 2), University of Rennes1, France, in Ecology and Population Biology. April 2003 - September 2004: Assistant Professor (senior docent, non-permanent), combined with a EU MarieCurie-Fellowship at the University of Nijmegen and ALTERRA Institute Wageningen (The Netherland ...
thesis12.11 - Academic Commons
thesis12.11 - Academic Commons

... Spatial pattern is a crucial aspect of vegetation which has important implications not only for plants themselves but also the organisms who interact with them such as herbivores, pollinators and those for which plants provide a habitat (Dale 1999). It is important to recognize that when studying ve ...
- ePrints Soton
- ePrints Soton

... properties are imposed by the experimenters. A population of ecosystems is provided by the experimental setup, and the fitness consequences of the measured “ecosystemlevel” phenotypic variation are imposed. Selected ecosystems are reproduced by sampling the medium of the “parent” ecosystem (eg soil, ...
Document
Document

... Common Ragweed (Ambrosia artemisiifolia), and Giant Ragweed (Ambrosia trifida). Four additional borders of varying widths (15m40m) were established with an identical vegetative treatment. Nineteen control field borders were selected in locations as similar as possible to the treated borders, and rep ...
Slide 1
Slide 1

... Amphibian populations are in rapid decline around the globe. Habitats that amphibians currently occupy should be studied to determine the complex habitat requirements of each species. Many amphibian populations in the North East require vernal pools (or depressional wetlands) to use as breeding site ...
niche dynamics of deer mice in a fragmented, old-growth
niche dynamics of deer mice in a fragmented, old-growth

... deer mouse (P. oreas) is abundant, especially in old-growth forests of the Olympic Peninsula (Carey and Johnson, 1995). The presence of these two species of Peromyscus on the Peninsula provides an excellent opportunity to study interactions of closely related species in a changing landscape. The hyp ...
Ant community structure on a small Pacific island: only one native
Ant community structure on a small Pacific island: only one native

... observed PSI than randomized PSI implies interspecific competition and resource (activity time in this case) partitioning, whereas a significantly larger observed PSI might indicate shared resource utilization and a lack of competition (Gotelli and Entsminger 2010). To quantify patterns of species c ...
Linking Scales in Stream Ecology
Linking Scales in Stream Ecology

... movement to local population dynamics, particularly in open systems such as streams, requires the explicit consideration of spatial scale in population-level research. There is a growing body of direct, empirical data on the dispersal patterns of stream organisms (Skalski and Gilliam 2000, Lowe 2003 ...
Is farther seed dispersal better?
Is farther seed dispersal better?

... We mapped all Licania and Carapa seedlings B100 cm in height across a 200 200 m (4 ha) area in the centre of the 400 400 m area described above in May 1999. For Voucapoua, we used an existing mapping of seedlings across a 250 20 m (0.5 ha) area, carried out in November 1992 (PJvdM and FB). Thus, ...
competition for hummingbird pollination shapes flower color
competition for hummingbird pollination shapes flower color

... An alternative model involving competition for pollinators can account for color divergence even in the absence of shifts among functional groups of pollinators. When plants cooccur and flower synchronously, fitness can be reduced through competition for pollinator service (Waser 1978; Morales and T ...
biodiversity loss and ecosystem functioning
biodiversity loss and ecosystem functioning

... Abstract. Given currently high rates of extinction, it is critical to be able to predict how ecosystems will respond to loss of species and consequent changes in community structure. Much previous research in this area has been based on terrestrial systems, using synthetically assembled communities. ...
Potential Predator-prey Relationships between Bythotrephes
Potential Predator-prey Relationships between Bythotrephes

... recent invader, Cercopagis pengoi is closely related to, but considerably smaller than, B. longimanus (Rivier 1998). Cercopagis pengoi was first documented in Lake Ontario in 1998 (MacIsaac et al. 1999), in Lake Michigan in 1999 (Charlebois et al. 2001), and has since invaded several other North Ame ...
WGCP PIF Plan (2003 Revised Draft)
WGCP PIF Plan (2003 Revised Draft)

... stands must be a high priority for public and perhaps some private lands in much of the WGCP. Keeping as much of the region in forests as possible, even short rotation loblolly, is better for birds than conversion to pasture or other uses. The large amount of forest in this bird conservation region, ...
Testing Predictions of the Prey of Lion (Panthera leo) Derived from
Testing Predictions of the Prey of Lion (Panthera leo) Derived from

... and resident populations. We solved the Jacobs’ index preference equation for each prey species of the lion using values calculated by Hayward and Kerley (2005) and prey abundance data from 4 reintroduction sites and 1 resident lion population over several years. We then compared these estimates wit ...
Nevada Wildlife Action Plan - Nevada Department of Wildlife
Nevada Wildlife Action Plan - Nevada Department of Wildlife

... With a few noteworthy exceptions, birds in Nevada tend to be distributed at low densities across the landscape. This distribution is probably a reflection of food resources, which likewise tend to be rather widely dispersed in the Great Basin and Mojave Deserts. The exception to this generality usua ...
BIOS 3010: Ecology 2. The effect of grazing herbivores: 3. The effect
BIOS 3010: Ecology 2. The effect of grazing herbivores: 3. The effect

... 6. Community structure and temporal variation in conditions: •  Conditions constantly change in space and time: –  They have a marked impact on ecological processes and hence on species composition of communities (Fig. 21.5). ...
A survey of seed and seedling characters in 1744 Australian
A survey of seed and seedling characters in 1744 Australian

... node acquires an average value based on the value of nodes directly below it (a weighted average if the path segments have different lengths). These values are interpreted in relation to the set of descendant species (each node is next re-expressed as a difference from its parent node) rather than i ...
Evaluating least-cost model predictions with empirical
Evaluating least-cost model predictions with empirical

... short geographic distances. These patterns are expected by the ecological and lifehistory knowledge of the species, leading to a relatively low magnitude of population differentiation coupled with short distance spatial patterns. Moreover, even these weak patterns showed a signature of effects of hu ...
Functional diversity responses to changing species richness in reef
Functional diversity responses to changing species richness in reef

... We recognize that many species may not fit easily into a particular functional group because of temporal, spatial or ontogenetic shifts in diet, or simply because of a lack of full diet information. Furthermore, the traits we use to classify species into functional groups are not fully independent, ...
Living on the Edge of Two Changing Worlds: Forecasting the
Living on the Edge of Two Changing Worlds: Forecasting the

... We highlight the importance of studies encompassing multiple spatial and temporal scales for the detection and quantification of biological responses to climatic shifts (Denny et al. 2004, Helmuth et al. 2002, Holtmeier & Broll 2005), emphasizing the necessity of considering physiological performance ...
ES4
ES4

... Invasive black rats are believed to exert severe predatory pressure on native arthropod species, but the effects of this pressure on arthropod populations has not been quantified in the field. Because rats are now nearly ubiquitous in natural areas of Hawaii, the most effective way to assess their i ...
Limiting similarity, species packing, and the shape of
Limiting similarity, species packing, and the shape of

... where φ can be regarded as a frequency, i is the imaginary unit, and integration extends over the real line. For a circular niche space, this means an infinite number of turns around the circle. If the function is symmetric, so that a(−x) = a(x), the Fourier transform is real, but in general there ar ...
Species interaction mechanisms maintain grassland
Species interaction mechanisms maintain grassland

... overyield when interspecific interactions are less detrimental or more favorable than intraspecific interactions. That is, a species overyields when there is less competition or when there are more positive interactions in mixture than in monoculture. Vandermeer (1981) showed that the general Lotka-Vo ...
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Occupancy–abundance relationship

In ecology, the occupancy–abundance (O–A) relationship is the relationship between the abundance of species and the size of their ranges within a region. This relationship is perhaps one of the most well-documented relationships in macroecology, and applies both intra- and interspecifically (within and among species). In most cases, the O–A relationship is a positive relationship. Although an O–A relationship would be expected, given that a species colonizing a region must pass through the origin (zero abundance, zero occupancy) and could reach some theoretical maximum abundance and distribution (that is, occupancy and abundance can be expected to co-vary), the relationship described here is somewhat more substantial, in that observed changes in range are associated with greater-than-proportional changes in abundance. Although this relationship appears to be pervasive (e.g. Gaston 1996 and references therein), and has important implications for the conservation of endangered species, the mechanism(s) underlying it remain poorly understood
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