Warning Signal Brightness Variation: Sexual Selection May Work
... of this population using a x2 goodness of fit test, testing the hypothesis that frogs were distributed equally across substrate categories. We then used visual modeling estimates to assess the ability of viewers to distinguish differences between males, using two approaches: (1) comparison of all po ...
... of this population using a x2 goodness of fit test, testing the hypothesis that frogs were distributed equally across substrate categories. We then used visual modeling estimates to assess the ability of viewers to distinguish differences between males, using two approaches: (1) comparison of all po ...
Maureen McClung - Biology Department | UNC Chapel Hill
... which are subject to several problems. Hutchinson (1958) himself identified the pitfalls in his theory when he first introduced the n-dimensional hypervolume. His theory assumes the niche to be equally optimal in all areas, however it is inevitably suboptimal near borders. It also assumes that all e ...
... which are subject to several problems. Hutchinson (1958) himself identified the pitfalls in his theory when he first introduced the n-dimensional hypervolume. His theory assumes the niche to be equally optimal in all areas, however it is inevitably suboptimal near borders. It also assumes that all e ...
Characterization of the first cultured representative of
... and medicine (for example, Horn et al., 2004). In addition, some environmental clades of the Verrucomicrobia phylum can be of high ecological significance, especially in soils where their abundance can exceed 20% of the total bacterial community (Bergmann et al., 2011). Despite their importance in e ...
... and medicine (for example, Horn et al., 2004). In addition, some environmental clades of the Verrucomicrobia phylum can be of high ecological significance, especially in soils where their abundance can exceed 20% of the total bacterial community (Bergmann et al., 2011). Despite their importance in e ...
Biodiversity in intensive grasslands
... cutting management, and water regulation by drainage. This is mainly linked to the huge effect of these management factors, but it may also be recognized that the influence of the other factors has on the whole been studied less. Ploughing and reseeding will not be considered in this paper devoted t ...
... cutting management, and water regulation by drainage. This is mainly linked to the huge effect of these management factors, but it may also be recognized that the influence of the other factors has on the whole been studied less. Ploughing and reseeding will not be considered in this paper devoted t ...
Resource Depletion and Habitat Segregation by Competitors Under
... of predicting them, are treated below). A corresponding step function in in dividual growth rate could also be expected, if the habitats differ in resource levels or energetic costs. A discrete habitat shift is depicted, but in some cases the shift away from a hazardous site might be more gradual. ...
... of predicting them, are treated below). A corresponding step function in in dividual growth rate could also be expected, if the habitats differ in resource levels or energetic costs. A discrete habitat shift is depicted, but in some cases the shift away from a hazardous site might be more gradual. ...
Analyses of 16S rRNA and RuBisCO large subunit genes from an
... of halotolerants. The phylogenetic similarity between the halotolerants in different temperate waters including the deep Pacific, and Antarctic waters and terrains suggests that deepsea bacterial distribution and evolution have been mediated by global deep-ocean circulation linked to the sinking of ...
... of halotolerants. The phylogenetic similarity between the halotolerants in different temperate waters including the deep Pacific, and Antarctic waters and terrains suggests that deepsea bacterial distribution and evolution have been mediated by global deep-ocean circulation linked to the sinking of ...
PDF - McGill University
... al. 2005; Wainwright et al. 2005). Indeed, this is one potential source of the alternative fitness peaks mentioned earlier (Schluter 2000; Losos 2009). This explanation can be assessed by relating performance variation to trait variation (e.g., Alfaro et al. 2004, ...
... al. 2005; Wainwright et al. 2005). Indeed, this is one potential source of the alternative fitness peaks mentioned earlier (Schluter 2000; Losos 2009). This explanation can be assessed by relating performance variation to trait variation (e.g., Alfaro et al. 2004, ...
Occupancy Modeling
... Occupancy data: Multiple Species Static studies null models to deduce occupancy patterns under a null hypothesis of independence or no interactions Need to estimate occupancy for each species at each location separately Dynamic studies use occupancy data taken at ...
... Occupancy data: Multiple Species Static studies null models to deduce occupancy patterns under a null hypothesis of independence or no interactions Need to estimate occupancy for each species at each location separately Dynamic studies use occupancy data taken at ...
Review The evolutionary consequences of ecological interactions
... those between plants and pollinators. The study of ecological interactions is challenging because the effect of the interaction on any given participant, whether it be positive, negative or neutral, often depends on the current ecological conditions (Thompson, 2005). The direction of an interaction ...
... those between plants and pollinators. The study of ecological interactions is challenging because the effect of the interaction on any given participant, whether it be positive, negative or neutral, often depends on the current ecological conditions (Thompson, 2005). The direction of an interaction ...
Review The evolutionary consequences of ecological interactions
... those between plants and pollinators. The study of ecological interactions is challenging because the effect of the interaction on any given participant, whether it be positive, negative or neutral, often depends on the current ecological conditions (Thompson, 2005). The direction of an interaction ...
... those between plants and pollinators. The study of ecological interactions is challenging because the effect of the interaction on any given participant, whether it be positive, negative or neutral, often depends on the current ecological conditions (Thompson, 2005). The direction of an interaction ...
Emergence of the Canonical Genetic Code
... less accurate in the assignment of nucleotide sequences to amino acid sequences. However, this ambiguity would be tolerated and embraced in early life. Sets of codons would be translated to sets of amino acid sequences, giving rise to the concept of “statistical proteins”. The communal state of thes ...
... less accurate in the assignment of nucleotide sequences to amino acid sequences. However, this ambiguity would be tolerated and embraced in early life. Sets of codons would be translated to sets of amino acid sequences, giving rise to the concept of “statistical proteins”. The communal state of thes ...
CRB_Monit_Frwk_2Nov09-both
... The salmonid monitoring sub-framework outlined here includes (1) anadromous fish population status and trend criteria, specifically Viable Salmonid Population (VSP) metrics (2) artificial production effectiveness, and (3) habitat effectiveness monitoring. These three are components of a broader moni ...
... The salmonid monitoring sub-framework outlined here includes (1) anadromous fish population status and trend criteria, specifically Viable Salmonid Population (VSP) metrics (2) artificial production effectiveness, and (3) habitat effectiveness monitoring. These three are components of a broader moni ...
Conservation Priorities for the Amphibians and Reptiles of Canada
... Amphibians and reptiles make up an important component of the biodiversity of Canada. They occupy virtually all habitats, from marine to prairie to forest. Juveniles are important food sources for many species, while adults are significant predators on a variety of invertebrates and small vertebrate ...
... Amphibians and reptiles make up an important component of the biodiversity of Canada. They occupy virtually all habitats, from marine to prairie to forest. Juveniles are important food sources for many species, while adults are significant predators on a variety of invertebrates and small vertebrate ...
Logic of experiments in ecology: is pseudoreplication a
... Oksanen, L. 2001. Logic of experiments in ecology: is pseudoreplication a pseudoissue? – Oikos 94: 27 – 38. Hurlbert divides experimental ecologist into ‘those who do not see any need for dispersion (of replicated treatments and controls), and those who do recognize its importance and take whatever ...
... Oksanen, L. 2001. Logic of experiments in ecology: is pseudoreplication a pseudoissue? – Oikos 94: 27 – 38. Hurlbert divides experimental ecologist into ‘those who do not see any need for dispersion (of replicated treatments and controls), and those who do recognize its importance and take whatever ...
Species Abundance, Not Diet Breadth, Drives the Persistence of the
... impact to the entire system will depend on which species are lost first and how their loss propagates to other species. Despite these clear theoretical predictions, however, the actual order in which mutualist species are lost from real networks is poorly known (Bascompte and Stouffer 2009; Wardle e ...
... impact to the entire system will depend on which species are lost first and how their loss propagates to other species. Despite these clear theoretical predictions, however, the actual order in which mutualist species are lost from real networks is poorly known (Bascompte and Stouffer 2009; Wardle e ...
Abstract Book
... planton which states that in equilibrium the number of coexisting species can not exceed the number of ressources. We study a competition model similar to the one introduced by Huisman and Weissing who showed that coexistence of more species than ressources becomes possible in non-equilibrium states ...
... planton which states that in equilibrium the number of coexisting species can not exceed the number of ressources. We study a competition model similar to the one introduced by Huisman and Weissing who showed that coexistence of more species than ressources becomes possible in non-equilibrium states ...
Frog eat frog: exploring variables influencing
... multiple species, we had a dataset of 355 records from 228 species. These included the contents of 40,238 anuran stomachs with some 456,146 prey items, of which 1,711 were anuran eggs (29%), larvae (21%) and post-metamorphs (50%). The majority of records revealed that most populations of frogs did n ...
... multiple species, we had a dataset of 355 records from 228 species. These included the contents of 40,238 anuran stomachs with some 456,146 prey items, of which 1,711 were anuran eggs (29%), larvae (21%) and post-metamorphs (50%). The majority of records revealed that most populations of frogs did n ...
Logic of experiments in ecology: is pseudoreplication a
... Oksanen, L. 2001. Logic of experiments in ecology: is pseudoreplication a pseudoissue? – Oikos 94: 27 – 38. Hurlbert divides experimental ecologist into ‘those who do not see any need for dispersion (of replicated treatments and controls), and those who do recognize its importance and take whatever ...
... Oksanen, L. 2001. Logic of experiments in ecology: is pseudoreplication a pseudoissue? – Oikos 94: 27 – 38. Hurlbert divides experimental ecologist into ‘those who do not see any need for dispersion (of replicated treatments and controls), and those who do recognize its importance and take whatever ...
A Superfamily of S Locus-Related Sequences in
... Arabidopsis ARK genes and the Brassica SRK6 and SflK2 genes as well (data not shown). Thus, in all these receptorlike genes, the first exon encodes the entire S domain, the second exon encodes the transmembrane domain, and exons 3 to 7 encode the kinase domain. The ARK2 gene, from the predicted tran ...
... Arabidopsis ARK genes and the Brassica SRK6 and SflK2 genes as well (data not shown). Thus, in all these receptorlike genes, the first exon encodes the entire S domain, the second exon encodes the transmembrane domain, and exons 3 to 7 encode the kinase domain. The ARK2 gene, from the predicted tran ...
Effects of alien species on plant-pollinator interactions: how can
... for bees (Hurd 1978). An opposite effect may be induced by unattractive invading plant species that spread vigorously and create dense monospecific stands, thereby outcompeting native flowering plants that provide forage resources, and transforming nesting habitats such as bare ground (Johnson 2008; ...
... for bees (Hurd 1978). An opposite effect may be induced by unattractive invading plant species that spread vigorously and create dense monospecific stands, thereby outcompeting native flowering plants that provide forage resources, and transforming nesting habitats such as bare ground (Johnson 2008; ...
The role of biotic interactions in shaping distributions and realised
... the regional species pool, which itself does not only depend on the cumulative effects of local processes happening within the region, including biotic interactions, but also on processes operating over broader extents, such as speciation, historical regional extinctions, and regional immigration (R ...
... the regional species pool, which itself does not only depend on the cumulative effects of local processes happening within the region, including biotic interactions, but also on processes operating over broader extents, such as speciation, historical regional extinctions, and regional immigration (R ...
FAQs On The Monarch Butterfly Endangered Species Act
... abundance in the pre-settlement prairies of Iowa – based on milkweed prevalence in today’s prairie remnants – found ten-fold more milkweeds on the prairies than exist today, suggesting more milkweed habitat that supported larger monarch populations. ...
... abundance in the pre-settlement prairies of Iowa – based on milkweed prevalence in today’s prairie remnants – found ten-fold more milkweeds on the prairies than exist today, suggesting more milkweed habitat that supported larger monarch populations. ...
Overcoming evolutionary history: conditioning the
... Organisms use cues to assess their environment; however, changes to the environment can cause a mismatch between current cues and the conditions with which they were historically associated (Schlaepfer et al., 2002; Schlaepher et al., 2005; Robertson et al., 2013). Individuals can consequently becom ...
... Organisms use cues to assess their environment; however, changes to the environment can cause a mismatch between current cues and the conditions with which they were historically associated (Schlaepfer et al., 2002; Schlaepher et al., 2005; Robertson et al., 2013). Individuals can consequently becom ...
The role of biotic interactions in shaping distributions and realised
... the regional species pool, which itself does not only depend on the cumulative effects of local processes happening within the region, including biotic interactions, but also on processes operating over broader extents, such as speciation, historical regional extinctions, and regional immigration (R ...
... the regional species pool, which itself does not only depend on the cumulative effects of local processes happening within the region, including biotic interactions, but also on processes operating over broader extents, such as speciation, historical regional extinctions, and regional immigration (R ...