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2016

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Articles 181 - 210 of 1105

Full-Text Articles in Ecology and Evolutionary Biology

The Role Of Individual Cognitive And Behavioral Ontogeny In Organization And Evolution Of Social Systems, Andrew G. Fulmer Sep 2016

The Role Of Individual Cognitive And Behavioral Ontogeny In Organization And Evolution Of Social Systems, Andrew G. Fulmer

Dissertations, Theses, and Capstone Projects

Exploration and explanation of the relationship between individual variation in behavior and the composition and adaptive success of social groups or populations are crucial problems in the fields of behavioral ecology, ethology, and comparative psychology. These questions have been the subject of a longstanding discussion at both the proximate and ultimate levels of inquiry. Adaptive mechanisms explaining social decision making, both in terms of affiliative and competitive partner choices, are at the center of such discussions. Inclusive fitness, kin-selection, handicap or prestige, risk seeking and risk avoiding strategies, pay-to-stay/reward principles, as well as other theories have been proposed and supported …


Cognitive Dissonance Or Contrast?, Thomas R. Zentall Sep 2016

Cognitive Dissonance Or Contrast?, Thomas R. Zentall

Animal Sentience

According to Festinger (1957), cognitive dissonance occurs when one’s behavior or belief is inconsistent with another belief and one modifies one of the beliefs in an attempt to reduce the dissonance. In nonhuman animals, we have examined a version of human cognitive dissonance theory called justification of effort, according to which the value of reward following more difficult tasks increases, presumably to justify (to oneself or to others) performing the more difficult task. We have examined the justification of effort effect in animals and found a pattern similar to the one in humans but we propose a simpler underlying …


A Novel Qtl Associated With Dwarf Bunt Resistance In Idaho 444 Winter Wheat, Jianli Chen, Mary J. Guttieri, Junli Zhang, David Hole, Edward Souza, Blair Goates Sep 2016

A Novel Qtl Associated With Dwarf Bunt Resistance In Idaho 444 Winter Wheat, Jianli Chen, Mary J. Guttieri, Junli Zhang, David Hole, Edward Souza, Blair Goates

Green Canyon Environmental Research Area, Logan Utah

Dwarf bunt [Tilletia controversa J.G. Kühn [as ‘contraversa’], in Rabenhorst, Hedwigia 13: 188 (1874)] is a destructive disease of wheat (Triticum aestivum L.) that reduces grain yield and quality. A number of distinct genes conferring resistance to dwarf bunt have been used by breeding programs for nearly 100 years. However, few markers were identified that can be used in selection of dwarf bunt resistance. A recombinant inbred line (RIL) population derived from the bunt-resistant germplasm, Idaho 444 (IDO444), and the susceptible cultivar, Rio Blanco, was evaluated for phenotypic reaction to dwarf bunt inoculation in four trials in …


Investigating The Spatial Distribution And Effects Of Nearshore Topography On Acropora Cervicornis Abundance In Southeast Florida, Nicole D'Antonio, David S. Gilliam, Brian K. Walker Sep 2016

Investigating The Spatial Distribution And Effects Of Nearshore Topography On Acropora Cervicornis Abundance In Southeast Florida, Nicole D'Antonio, David S. Gilliam, Brian K. Walker

Marine & Environmental Sciences Faculty Articles

Dense Acropora cervicornis aggregations, or patches, have been documented within nearshore habitats in Southeast Florida (SE FL) despite close proximity to numerous anthropogenic stressors and subjection to frequent natural disturbance events. Limited information has been published concerning the distribution and abundance of A. cervicornis outside of these known dense patches. The first goal of this study was to conduct a spatially extensive and inclusive survey (9.78 km2) to determine whether A. cervicornis distribution in the nearshore habitat of SE FL was spatially uniform or clustered. The second goal was to investigate potential relationships between broad-scale seafloor topography and …


Eelgrass Distribution And Biomass In The Great Bay Estuary For 2015, Frederick T. Short Sep 2016

Eelgrass Distribution And Biomass In The Great Bay Estuary For 2015, Frederick T. Short

PREP Reports & Publications

See also: "Eelgrass/Macroalgae Discussion Primer for TAC Activities 2016-2017" http://scholars.unh.edu/prep/355

Eelgrass (Zostera marina L.) is an essential habitat for the Great Bay Estuary (GBE) because it is the basis of an estuarine food web that supports many of the recreationally, commercially and ecologically important species in the estuary and beyond. Eelgrass provides food for ducks, geese and swans, as well as food, nursery habitat, and shelter for juvenile fish and shellfish. Eelgrass filters estuarine waters and improves water clarity, removing both nutrients and suspended sediments from the water column; its roots and rhizomes bind and hold sediments in place, thereby …


Under Pressure: Cetaceans And Fisheries Co-Occurrence Off The Coasts Of Ghana And Côte D’Ivoire (Gulf Of Guinea), Marijke N. De Boer, James T. Saulino, Koen Van Waerebeek, Geert Aarts Sep 2016

Under Pressure: Cetaceans And Fisheries Co-Occurrence Off The Coasts Of Ghana And Côte D’Ivoire (Gulf Of Guinea), Marijke N. De Boer, James T. Saulino, Koen Van Waerebeek, Geert Aarts

Anthropogenics and Population Decline Collection

Within the Gulf of Guinea high levels of fisheries-related cetacean mortality (bycatch and direct-capture) has been documented. For locally rare species such removals could potentially lead to significant population level effects. However, information on the cetacean abundance and distribution is scarce. Similarly, it remains largely unreported where fishing fleets operate offshore. A cetacean survey took place during geophysical surveys (2013–2014) along the coasts of Ghana and Côte d’Ivoire. This provided a unique opportunity to study both offshore cetacean and fishing communities. Due to large group-sizes, melon-headed whales were the most abundant (0.34 animals km−1) followed by Fraser’s dolphins and short-finned …


A Revision Of The Genus Rhinolaemus Steel (Coleoptera: Laemophloeidae), Michael C. Thomas Sep 2016

A Revision Of The Genus Rhinolaemus Steel (Coleoptera: Laemophloeidae), Michael C. Thomas

Insecta Mundi

The genus Rhinolaemus Steel is revised. A new island and a new country record are presented for the type species, R. maculatus Steel. A new species, R. niueensis Thomas, new species, is described from Niue, and Rhinolaemus tuberculatus (Grouvelle), new combination, is transferred from Laemophloeus (sens. lat.). The members of the genus are illustrated and a key to their identification is presented.


A New Species Of Neostenoptera (Diptera: Cecidomyiidae: Winnertziinae) From Eastern North America, John D. Plakidas, Michael L. Ferro Sep 2016

A New Species Of Neostenoptera (Diptera: Cecidomyiidae: Winnertziinae) From Eastern North America, John D. Plakidas, Michael L. Ferro

Insecta Mundi

A new species of paedogenetic gall midge, Neostenoptera appalachiensis sp. nov., (Diptera: Cecidomyiidae: Winnertziinae: Heteropezini) from the eastern United States is described and illustrated, and pertinent collection and biological data are also provided. It is compared to its congeners, N. kiefferi (Meunier), a subfossil described from African copal, and N. congoensis Gagné, from the Congo. This rare, exciting discovery is the first record of the genus Neostenoptera in the New World.

While conducting research in Great Smoky Mountains National Park (GSMNP) (North Carolina and Tennessee, USA) (Ferro et al. 2012), MLF collected numerous unidentifi able fl ies as bycatch from …


Evolutionary Continuity Of Personhood, Anne Benvenuti Sep 2016

Evolutionary Continuity Of Personhood, Anne Benvenuti

Animal Sentience

Rowlands applies the two organizing ideas of the Lockean concept of personhood — mental life and unity — to animals as potential persons. Especially valuable in this context is his descriptive phenomenology of pre-reflective self-awareness as a fundamental form of mental life that necessarily entails unity. Rowland describes certain fundamentals of mental experience that exist across species boundaries, challenging assumptions of early modern philosophers regarding the definition of human personhood and affirming the principle of evolutionary continuity. This opens the door to a broader and deeper set of questions, related to whether we should continue to attempt to apply to …


The Functional Extinction Of Andean Megafauna, Angela Rozas-Dávila, Bryan G. Valencia, Mark B. Bush Sep 2016

The Functional Extinction Of Andean Megafauna, Angela Rozas-Dávila, Bryan G. Valencia, Mark B. Bush

Biomedical Engineering and Sciences Faculty Publications

Controversy exists over the cause and timing of the extinction of the Pleistocene megafauna. In the tropical Andes, deglaciation and associated rapid climate change began ∼8,000 years before human arrival, providing an opportunity to separate the effects of climate change from human hunting on megafaunal extinction. We present a paleoecological record spanning the last 25,000 years from Lake Pacucha, Peru (3,100 m elevation). Fossil pollen, charcoal, diatoms, and the dung fungus Sporormiella, chronicle a two-stage megaherbivore population collapse. Sporormiella abundance, the proxy for megafaunal presence, fell sharply at ∼21,000 years ago, but rebounded prior to a permanent decline between ∼16,800 …


The Utilization Of Aquatic Bushmeat From Small Cetaceans And Manatees In South America And West Africa, A. Mel Cosentino, Sue Fisher Sep 2016

The Utilization Of Aquatic Bushmeat From Small Cetaceans And Manatees In South America And West Africa, A. Mel Cosentino, Sue Fisher

Anthropogenics and Population Decline Collection

Aquatic bushmeat can be defined as the products derived from wild aquatic megafauna (e.g., marine mammals) that are used for human consumption and non-food purposes, including traditional medicine. It is obtained through illegal or unregulated hunts as well as from stranded (dead or alive) and bycaught animals. In most South American and West African countries aquatic mammals are or have been taken for bushmeat, including 33 small cetaceans and all three manatee species. Of these, two cetacean species are listed in the IUCN red list as “near threatened,” and one as “vulnerable,” as are all manatee species. Additionally, 22 cetacean …


Sybra Alternans (Wiedemann) (Lamiinae: Apomecynini): An Asian Cerambycid Established On Easter Island, Chile, José Mondaca, Francisco Ramírez, Sergio Rothmann Sep 2016

Sybra Alternans (Wiedemann) (Lamiinae: Apomecynini): An Asian Cerambycid Established On Easter Island, Chile, José Mondaca, Francisco Ramírez, Sergio Rothmann

Insecta Mundi

Seven specimens of Sybra alternans (Wiedemann) (Cerambycidae: Lamiinae: Apomecynini) were captured with a UV light trap and by beating branches of trees in the urban area of Easter Island (Chile) during 2011–2016, representing the fi rst record of the species in this Chilean insular territory, but not continental Chile. Sybra alternans is native to Southeast Asia and has been introduced accidentally to Hawaii and Florida in the United States of America. Data are presented from the literature on this species’ distribution, host plants, and biological information.

Resumen. Siete ejemplares de Sybra alternans (Wiedemann) (Cerambycidae: Lamiinae: Apomecynini) fueron capturados con una …


Taxonomic Supplement (2001 To 2015) To The Catalogue Of New Zealand Carabidae (Insecta: Coleoptera), André Larochelle, Marie-Claude Larivière Sep 2016

Taxonomic Supplement (2001 To 2015) To The Catalogue Of New Zealand Carabidae (Insecta: Coleoptera), André Larochelle, Marie-Claude Larivière

Insecta Mundi

A supplement to the “Carabidae (Insecta: Coleoptera): catalogue” published by Larochelle and Larivière (2001; Fauna of New Zealand 43), is provided. A total of 99 genera and 547 species and subspecies belonging to 21 tribes and 8 subfamilies of Carabidae (including Cicindelini and Rhysodini), is recorded for New Zealand. Endemism is high, with 93% of the species and subspecies as well as 62% of the genera recorded from this country only. Changes to the 2001 catalogue are documented. The synonymy and type locality of taxa described between 2001 and 2015 are also provided.


Provisional Revision Of The Genus Epimelitta Bates, 1870 And Associated Genera, With A Brief Synopsis Of The Genus Acorethra Bates, 1873 (Coleoptera, Cerambycidae), Robin O.S. Clarke Sep 2016

Provisional Revision Of The Genus Epimelitta Bates, 1870 And Associated Genera, With A Brief Synopsis Of The Genus Acorethra Bates, 1873 (Coleoptera, Cerambycidae), Robin O.S. Clarke

Insecta Mundi

Abstract. Epimelitta Bates, 1870 (Coleoptera, Cerambycidae) is redescribed with two species: Epimelitta scoparia (Klug, 1825) and Epimelitta rufiventris Bates, 1870; Epimelitta meliponica Bates, 1870 syn. nov. and Epimelitta acutipennis Fisher, 1947 syn. nov. are considered junior synonyms of E. scoparia. Exepimelitta gen. nov. is described with five species: Exepimelitta mimica (Bates, 1873), Ex. nigerrima (Bates, 1892), Ex. consobrina (Melzer, 1931) (= Epimelitta nigerrima var. flavipubescens Fisher, 1947, syn. nov.), Ex. lestradei (Peñaherrera-Leiva and Tavakilian, 2003) and Ex. windsori sp. nov. Charisia Champion, 1892 is revalidated and redescribed with six species: Charisia euphrosyne (Newman, 1840), C. mneme (Newman, 1841), …


Darwin’S Empirical Evidence, Maxine Sheets-Johnstone Sep 2016

Darwin’S Empirical Evidence, Maxine Sheets-Johnstone

Animal Sentience

Darwin’s extensive writings may seem antiquated to current thinkers with their predilections for cognitive science, neuroscience, and analytic branches of philosophy. He showed that morphologies are not simply taxonomic distinctions that allow classification into species. They describe living animals, hence morphologies-in-motion: animate forms of life engaged in synergies of meaningful movement, all of which are testimony to animal sentience.


Animal Personhood Is An Evolutionary Issue, James E. King Sep 2016

Animal Personhood Is An Evolutionary Issue, James E. King

Animal Sentience

The Rowlands target article makes a case, based on John Locke’s metaphysical argument, that personhood can be applied to many species beyond a few nonhuman primates. The problem with this argument is that personhood has an open-ended list of defining attributes and can, at best only be partially applied to nonhuman species. Therefore, a dichotomous distinction cannot be made between qualifying and non-qualifying species. Instead, between-species comparisons must be based on observational and experimental procedures to demonstrate the extent to which human mental attributes are shared with other species. This would allow a more informed view about the appropriateness of …


Another New Species Of Euscorpius Thorell, 1876 From The Taurus Mountains In Antalya Province, Southern Turkey (Scorpiones: Euscorpiidae), Gioele Tropea, Ersen Aydın Yağmur, Aristeidis Parmakelis, Kadir Boğaç Kunt Sep 2016

Another New Species Of Euscorpius Thorell, 1876 From The Taurus Mountains In Antalya Province, Southern Turkey (Scorpiones: Euscorpiidae), Gioele Tropea, Ersen Aydın Yağmur, Aristeidis Parmakelis, Kadir Boğaç Kunt

Euscorpius

A new scorpion species, Euscorpius alanyaensis sp. n., is described based on specimens collected from the Taurus Mountains in Antalya Province (Alanya District) in southern Turkey. It is a sibling species of the recently described E. gocmeni Tropea et al., 2014, and similarly, the new species is also characterized by a high trichobothrial count (Pv = 9–11, et = 7, em = 4, and eb = 4), a high pectinal teeth count (Dp = 9–11 in males, 8 in females), medium-small size, and light to medium brown-reddish colour. In addition, for the first time a phylogenetic …


How Could Consciousness Emerge From Adaptive Functioning?, Max Velmans Sep 2016

How Could Consciousness Emerge From Adaptive Functioning?, Max Velmans

Animal Sentience

The sudden appearance of consciousness that Reber posits in creatures with flexible cell walls and motility rather than non-flexible cells walls and no motility involves an evolutionary discontinuity. This kind of “miracle” is required by all “discontinuity” theories of consciousness. To avoid miraculous emergence, one may need to consider continuity theories, which accept that different forms of consciousness and material functioning co-evolve but assume the existence of consciousness to be primal in the way that matter and energy are assumed to be primal in physics.


Population Characteristics Of Human-Commensal Rodents Present In Households From Mérida, Yucatán, México, Jesús Alonso Panti-May, Silvia F. Hernández-Betancourt, Marco A. Torres-Castro, Carlos Machaín-Williams, Nohemi Cigarroa-Toledo, Lorenzo Sodá, Gabriela López-Manzanero, Josué R. Meza-Sulú, Victor M. Vidal-Martínez Sep 2016

Population Characteristics Of Human-Commensal Rodents Present In Households From Mérida, Yucatán, México, Jesús Alonso Panti-May, Silvia F. Hernández-Betancourt, Marco A. Torres-Castro, Carlos Machaín-Williams, Nohemi Cigarroa-Toledo, Lorenzo Sodá, Gabriela López-Manzanero, Josué R. Meza-Sulú, Victor M. Vidal-Martínez

MANTER: Journal of Parasite Biodiversity

Anthropocommensal rodents live in close proximity to humans in many habitats around the world. They are a threat to public health because of the pathogens they carry. Recent studies in Mérida, Yucatán, México, have shown that commensal rodents harbor potential zoonotic pathogens such as bacteria, helminths, and viruses. In this study, we describe reproductive and demographic parameters of house mice and black rats present in households from Mérida, Yucatán, México, a municipality located in a tropical region in southern México. Rodents were trapped in 142 households within the municipality of Mérida from 2011 to 2014. A total of 832 rodents …


Winter Activity Of Myotis Septentrionalis: Role Of Temperature In Controlling Emergence From A Hibernaculum, Cliff A. Lemen, Patricia Freeman, Jeremy A. White Sep 2016

Winter Activity Of Myotis Septentrionalis: Role Of Temperature In Controlling Emergence From A Hibernaculum, Cliff A. Lemen, Patricia Freeman, Jeremy A. White

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

We acoustically monitored a small mine in southeastern Nebraska known to be a hibernaculum for the Northern Long-eared Myotis (Myotis septentrionalis) for two winters (2014-2015 and 2015-2016). Some M. septentrionalis emerged on nights with mild temperatures throughout both winters. There was an 89% probability of detecting this species when temperature at sunset was >5°C. Our results indicated that acoustical surveys outside mines or caves in winter, particularly on nights with mild temperatures, are an effective method of identifying hibernacula of M. septentrionalis and potentially other species without disturbing individuals by entering the hibernaculum or by netting individuals as …


Temporal And Spatial Distribution Of Enterobius Vermicularis (Nematoda: Oxyuridae) In The Prehistoric Americas, Karl J. Reinhard, Adauto Araújo, Johnica J. Morrow Sep 2016

Temporal And Spatial Distribution Of Enterobius Vermicularis (Nematoda: Oxyuridae) In The Prehistoric Americas, Karl J. Reinhard, Adauto Araújo, Johnica J. Morrow

Karl Reinhard Publications

Investigations of Enterobius sp. infection in prehistory have produced a body of data that can be used to evaluate the geographic distribution of infection through time in the Americas. Regional variations in prevalence are evident. In North America, 119 pinworm positive samples were found in 1,112 samples from 28 sites with a prevalence of 10.7%. Almost all of the positive samples came from agricultural sites. From Brazil, 0 pinworm positive samples were found in 325 samples from 7 sites. For the Andes region, 22 pinworm positive samples were found in 411 samples from 26 sites for a prevalence of 5.3%. …


“Cellular Basis Of Consciousness”: Not Just Radical But Wrong, Brian Key Sep 2016

“Cellular Basis Of Consciousness”: Not Just Radical But Wrong, Brian Key

Animal Sentience

Reber (2016) attempts to resuscitate an obscure and outdated hypothesis referred to as the “cellular basis of consciousness” that was originally formulated by the author nearly twenty years ago. This hypothesis proposes that any organism with flexible cell walls, a sensitivity to its surrounds, and the capacity for locomotion will possess the biological foundations of mind and consciousness. Reber seeks to reduce consciousness to a fundamental property inherent to individual cells rather than to centralised nervous systems. This commentary shows how this hypothesis is based on supposition, false premises and a misunderstanding of evolutionary theory. The cellular basis of consciousness …


The Evolutionary History Of Consciousness, Eirik Søvik, Clint Perry Sep 2016

The Evolutionary History Of Consciousness, Eirik Søvik, Clint Perry

Animal Sentience

Klein & Barron argue that insects are capable of subjective experience, i.e., sentience. Whereas we mostly agree with the conclusion of their arguments, we think there is an even more important message to be learned from their work. The line of reasoning opened by Klein & Barron proves instructive for how neuroscientists can and should explore the biological phenomenon of consciousness.


Beginnings: Physics, Sentience And Luca, Carolyn A. Ristau Sep 2016

Beginnings: Physics, Sentience And Luca, Carolyn A. Ristau

Animal Sentience

According to Reber’s model, Cellular Basis of Consciousness (CBC), sentience had its origins in a unicellular organism and is an inherent property of living, mobile organic forms. He argues by analogy to basic physical forces which he considers to be inherent properties of matter; I suggest that they are instead the stuff of scientific investigation in physics. I find no convincing argument that sentience had to begin in endogenously mobile cells, a criterial attribute of the originator cell(s)for sentience according to CBC. Non-endogenously mobile cells, (i.e., plants or precursors) in a moving environment would suffice. Despite my concerns and the …


Might Insects Experience Pain?, Robert W. Elwood Sep 2016

Might Insects Experience Pain?, Robert W. Elwood

Animal Sentience

The aim of this commentary is to expand the discussion about subjective experience to other arthropods, notably crustaceans. Various species of crustaceans show responses consistent with their feeling pain. Hermit crabs also show prolonged investigation of new shells. They clearly attend to and integrate information from a wide variety of sources that enable them to evaluate the quality of the new shell relative to their current shell. These observations too are consistent with their having subjective experience.


A Species-Level Phylogeny Of Extant Snakes With Description Of A New Colubrid Subfamily And Genus, Alex Figueroa, Alexander D. Mckelvy, L. Lee Grismer, Charles D. Bell, Simon P. Lailvaux Sep 2016

A Species-Level Phylogeny Of Extant Snakes With Description Of A New Colubrid Subfamily And Genus, Alex Figueroa, Alexander D. Mckelvy, L. Lee Grismer, Charles D. Bell, Simon P. Lailvaux

Publications and Research

Background With over 3,500 species encompassing a diverse range of morphologies and ecologies, snakes make up 36% of squamate diversity. Despite several attempts at estimating higherlevel snake relationships and numerous assessments of generic- or species-level phylogenies, a large-scale species-level phylogeny solely focusing on snakes has not been completed. Here, we provide the largest-yet estimate of the snake tree of life using maximum likelihood on a supermatrix of 1745 taxa (1652 snake species + 7 outgroup taxa) and 9,523 base pairs from 10 loci (5 nuclear, 5 mitochondrial), including previously unsequenced genera (2) and species (61).

Results Increased taxon sampling resulted …


Mind/Body “Hard Problem” Is Not A Category Error, Linda A.W. Brakel Sep 2016

Mind/Body “Hard Problem” Is Not A Category Error, Linda A.W. Brakel

Animal Sentience

Reber’s Cellular Basis of Consciousness (CBC) has much to recommend it. However, while the CBC effectively renders null any ontological gap between mind and body, it leaves two important remaining gaps unaddressed: the epistemologic and the causal gap. Brakel’s (2013) Diachronic Conjunctive Token Physicalism (DiCoToP) is briefly introduced as a beginning remedy for the epistemologic, but unfortunately not the causal, gap. Thus the “hard problem” remains both hard and problematic.


Phenomenal Consciousness In Insects? A Possible Way Forward, Brian Key Sep 2016

Phenomenal Consciousness In Insects? A Possible Way Forward, Brian Key

Animal Sentience

Klein & Barron (2016) propose that subjective experience in humans arises in the midbrain and then argue that insects have the capacity for subjective experience because their nervous system can perform neural processing similar to that of the midbrain. This approach ultimately fails because it is built on the false premise that the midbrain is the source of the awareness of sensory stimuli. I instead propose that the capacity for subjective experience must be based on fundamental neural computations that generate the “what it feels like” experience. Two such computations associated with metarepresentations and high level representations entering working memory …


Impacts Of Fog Drip On Survivorship And Growth Of Native Herb And Shrub Seedlings On Santa Rosa Island, Julianne Bradbury, Ken Niessen, Kathryn Mceachern Sep 2016

Impacts Of Fog Drip On Survivorship And Growth Of Native Herb And Shrub Seedlings On Santa Rosa Island, Julianne Bradbury, Ken Niessen, Kathryn Mceachern

STAR Program Research Presentations

Overgrazing on Santa Rosa Island led to loss of topsoil in ridgeline groves of endemic island oaks (Quercus tomentella). Restoration specialists attempting to mitigate the impacts of wind and water erosion must determine efficient methods of reestablishing native vegetation. Planting pillows, burlap sacks filled with planting mix and attached to the bedrock substrate, may nurture seedlings long enough for their roots to penetrate the underlying sandstone. Since the island’s ridgeline habitat is often inaccessible during the rainy season, restoration efforts are largely confined to the dry summer months, during which condensed fog is an important source of moisture …


The Evaluation Of The Response Of American Eels To Rapid Decompression, Christina Macmillan, Alison Colotelo, John Stephenson, Briana Rhode, Trevor Macduff Sep 2016

The Evaluation Of The Response Of American Eels To Rapid Decompression, Christina Macmillan, Alison Colotelo, John Stephenson, Briana Rhode, Trevor Macduff

STAR Program Research Presentations

Hydropower dams are used throughout the world to generate electricity and dams can negatively affect fish, as they can hinder or block migration or be a source of injury and mortality during passage. When moving downstream, fish can pass through the turbines instead of other routes (e.g. spillway and juvenile bypass system)where there is a sudden decrease in pressure that can cause barotraumas, injuries from the changes in barometric pressure, (e.g., hemorrhaging, embolism, ruptured organs) due to internal gases expanding. To determine the response of American eels, Anguilla rostrate, to rapid decompression, testing was conducted in the Mobile Aquatic …