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Articles 15271 - 15300 of 19608
Full-Text Articles in Entire DC Network
Estimation Of Heavy Metal Residues From The Feathers Of Falconidae, Accipitridae, And Strigidae In Punjab, Pakistan, Shagufta Nighat, Shahid Iqbal, Muhammad Sajid Nadeem, Tariq Mahmood, Syed Israr Shah
Estimation Of Heavy Metal Residues From The Feathers Of Falconidae, Accipitridae, And Strigidae In Punjab, Pakistan, Shagufta Nighat, Shahid Iqbal, Muhammad Sajid Nadeem, Tariq Mahmood, Syed Israr Shah
Turkish Journal of Zoology
The concentrations of heavy metals (Cd, Zn, Ni, Pb, Cu, As) in feather samples of raptors of 3 families were determined from southern, central, and northern parts of Punjab Province. Deposition of metals significantly varied among the families for Cd, Zn, Ni, and Pb; further, these 4 metals also significantly differed between Accipitridae and Falconidae, and between Falconidae and Strigidae. Similarly, Cd, Ni, and As were significantly different among southern, central, and northern Punjab. Falconidae deposited higher concentrations of metals than Accipitridae and Strigidae, with the Common Kestrel being more susceptible. Likewise, central Punjab appeared to be more polluted than …
A Contribution On The Subfamilies Helconinae, Homolobinae, Macrocentrinae, Meteorinae, And Orgilinae (Hymenoptera: Braconidae) Of Southeastern Anatolia With New Records From Other Parts Of Turkey, Ahmet Beyarslan, Celaletti̇n Gözüaçik, İnanç Özgen
A Contribution On The Subfamilies Helconinae, Homolobinae, Macrocentrinae, Meteorinae, And Orgilinae (Hymenoptera: Braconidae) Of Southeastern Anatolia With New Records From Other Parts Of Turkey, Ahmet Beyarslan, Celaletti̇n Gözüaçik, İnanç Özgen
Turkish Journal of Zoology
This study was carried out in order to determine the species of the subfamilies Homolobinae, Macrocentrinae, Meteorinae, and Orgilinae in southeastern Anatolia, Turkey. Malaise and light traps and sweeping nets were used to obtain adult specimens from various habitats in the study area during 2010 and 2011. The collected materials from southeastern Anatolia and from new localities of other regions were identified and a total of 11 species from 5 genera determined, of which the species Diospilus morosus Reinhard is a new record for southeastern Anatolia. All species are new records on the basis of provinces of Turkey. The distributions …
Pycnogonida (Arthropoda) From Mersin Bay (Turkey, Eastern Mediterranean), Cengi̇z Koçak, Naci̇ye Alan
Pycnogonida (Arthropoda) From Mersin Bay (Turkey, Eastern Mediterranean), Cengi̇z Koçak, Naci̇ye Alan
Turkish Journal of Zoology
A study of the sea spiders found in Mersin Bay, on the Mediterranean coast of Turkey, revealed 5 species belonging to 2 families (Ammotheidae and Phoxichilidiidae), which are new records for the region: Ammothella longipes (Hodge, 1864), A. appendiculata (Dohrn, 1881), Tanystylum orbiculare Wilson, 1878, T. conirostre (Dohrn, 1881), and A. pygmaeus (Hodge, 1864). Of these, 4 species (A. longipes, A. appendiculata, T. conirostre, A. pygmaeus) are new records for the Mediterranean coast of Turkey. In addition, T. conirostre and A. appendiculata are recorded for the first time from the Levantine Sea. Distribution of the species in Turkish waters is …
A New Species Of The Genus Arrenurus Dugès, 1834 (Acari: Hydrachnidia: Arrenuridae) For The Turkish Fauna: Arrenurus (Truncaturus) Corsicus (E. Angelier, 1951), Yunus Esen, Orhan Erman
A New Species Of The Genus Arrenurus Dugès, 1834 (Acari: Hydrachnidia: Arrenuridae) For The Turkish Fauna: Arrenurus (Truncaturus) Corsicus (E. Angelier, 1951), Yunus Esen, Orhan Erman
Turkish Journal of Zoology
Arrenurus (Truncaturus) corsicus (E. Angelier, 1951) is newly recorded for the Turkish fauna. It can be easily distinguished from other Truncaturus species by the pedipalpal femur with numerous hair-like setae medially, elongated idiosoma, and anterior coxae extending beyond anterior idiosoma margin.
Faunistic Review And Description Of A New Species Of Pselaphinae (Coleoptera: Staphylinidae) From The Strandzha Mountains (Bulgaria And Turkey), Rostislav Bekchiev
Faunistic Review And Description Of A New Species Of Pselaphinae (Coleoptera: Staphylinidae) From The Strandzha Mountains (Bulgaria And Turkey), Rostislav Bekchiev
Turkish Journal of Zoology
During a 3-year faunistic survey in the Strandzha Mountains and along the Black Sea coast, a total of 44 species of Pselaphinae were recorded, 40 in the Bulgarian part and 30 in the Turkish part of this mountain range. Bibloporus variicolor Reitter, 1882 is reported to occur in the Balkan Peninsula for the first time; the genus Centrotoma Hayden, 1849 and 3 species (Euplectus brunneus Grimmer, 1841, Batrisus formicarius Aubé, 1833, and Centrotoma lucifuga Hayden, 1849) are new for the Turkish fauna; and 4 species (Bibloplectus pusillus (Denny, 1825), Bibloplectus hungaricus Besuchet, 1955, Bythinus balkanicus Reitter, 1885, and Brachygluta tibialis …
Monogeneans Of Fish Near Gökçeada, Turkey, Ahmet Akmirza
Monogeneans Of Fish Near Gökçeada, Turkey, Ahmet Akmirza
Turkish Journal of Zoology
In this study, performed in April, July, September, and October 2011 and January 2012 in the northeastern Aegean Sea near Gökçeada in Turkey, 14 species of monogenean trematodes (Anthocotyle merlucci, Kuhnia scombri, Mazocraes alosae, Plectanocotyle gurnardi, Choricotyle chrysophrii, Pseudaxine trachuri, Amphibdella torpedinis, Bivagina alcedinis, Aspinatrium trachini, Microcotyle erythrini, Atrispinum acarne, Atrispinum salpae, Atrispinum seminalis, and Zeuxapta seriolae) were found in a total of 64 fish samples from 17 fish species (Merluccius merluccius, Trigla lucerna, Lichia amia, Alosa fallax, Trachurus mediterraneus, Boops boops, Diplodus annularis, Diplodus vulgaris, Pagellus acerna, Pagellus erythrinus, Salpa salpa, Spondyliosoma cantharus, Spicara flexuosa, Sphyraena sphyraena, Trachinus araneus, …
Brackish Water Snails From Qi'ao-Dan'gan Island In The Pearl River Estuary, China, Yafang Li, Runlin Xu
Brackish Water Snails From Qi'ao-Dan'gan Island In The Pearl River Estuary, China, Yafang Li, Runlin Xu
Turkish Journal of Zoology
Eight brackish water snails belonging to 5 families are described. All the samples were taken from 3 different types of water body. They were taken from 1 littoral of an artificial brackish lake, 1 intertidal zone of a brackish tidal river, and 3 mangrove swamps on Qi'ao Island in the Pearl River estuary, Guangdong Province, southern China. Assiminea estuarina Habe, 1946 and Iravadia (Fairbankia) cochinchinensis Bavey & Dautzenberg, 1910 are new records for China. Cerithidea sinensis Philippi, 1848 was found in a tropical zone for the first time. The finding of Sphaerassiminea brevicula (Pfeiffer, 1855) provided evidence that this species …
A Case Of Chondrosarcoma In A Pheasant (Phasianus Colchicus), Özge Erdoğan, Aydin Gürel, Serhat Özsoy
A Case Of Chondrosarcoma In A Pheasant (Phasianus Colchicus), Özge Erdoğan, Aydin Gürel, Serhat Özsoy
Turkish Journal of Veterinary & Animal Sciences
A pheasant (Phasianus colchicus) was referred to the clinic of the Department of Surgery in the Veterinary Faculty of İstanbul University, with the complaint of swelling in the abdomen. Radiography revealed a tumoral mass in the gizzard and the surgical removal of the tumoral mass was performed. The biopsy specimen was submitted to the Department of Pathology. After being processed routinely, specimens were stained with hematoxylin and eosin and Masson trichrome stains. Based on the histopathological findings, the tumor was diagnosed as chondrosarcoma.
Indel Mutation Of The Add1/Srebp-1c Gene In The South Anatolian Red And East Anatolian Red Cattle Breeds, Kemal Özdem Öztabak, Iraz Akiş Akad, Feraye Esen Gürsel, Ati̇la Ateş, Hasret Yardi̇bi̇, Gülhan Türkay Hoştürk
Indel Mutation Of The Add1/Srebp-1c Gene In The South Anatolian Red And East Anatolian Red Cattle Breeds, Kemal Özdem Öztabak, Iraz Akiş Akad, Feraye Esen Gürsel, Ati̇la Ateş, Hasret Yardi̇bi̇, Gülhan Türkay Hoştürk
Turkish Journal of Veterinary & Animal Sciences
The present study was designed to determine genotypes of adipocyte determination and differentiation-dependent factor 1 (ADD1)/sterol regulatory element-binding protein-1c (SREBP1c) in South Anatolian Red (SAR) and East Anatolian Red (EAR) cattle. Fifty cattle from the SAR breed and 43 cattle from the EAR breed were used. Intron 7 of the ADD1/SREBP1c gene containing an 84 bp indel mutation was amplified by polymerase chain reaction (PCR). The number of SS genotyped individuals with the 84 bp deletion associated with fatty acid composition and growth traits were very low in both breeds. The frequency of the LL genotype with the 84 bp …
Fattening Performance And Carcass Traits Of Lambs Obtained By Crossing The Hasmer And Hasak Sheep Types With The Akkaraman Breed, Mehmet Çolak, Mehmet Emi̇n Teki̇n, Ahmet Hamdi̇ Aktaş, Necdet Akay, Tülay Canatan Yilmaz
Fattening Performance And Carcass Traits Of Lambs Obtained By Crossing The Hasmer And Hasak Sheep Types With The Akkaraman Breed, Mehmet Çolak, Mehmet Emi̇n Teki̇n, Ahmet Hamdi̇ Aktaş, Necdet Akay, Tülay Canatan Yilmaz
Turkish Journal of Veterinary & Animal Sciences
The present study investigated the fattening performance and carcass traits of lambs obtained by the crossing of the Hasak and Hasmer sheep types, developed at the Bahri Dağdaş International Agricultural Research Institute, with publicly owned Akkaraman sheep. Of each of these groups, 7 male and 7 female lambs of approximately 75 days of age were raised under an intensive feedlot system. The fattening period lasted 70 days, and, at the end of this period, 5 lambs were slaughtered from each group with the aim of determining carcass traits. In conclusion, the percentage of tail fat was reduced with the decreasing …
Annual Reports Of The Selectboard And Other Town Officers Charlestown, N.H. For The Year Ending December 31, 2012., Charlestown Town Representatives
Annual Reports Of The Selectboard And Other Town Officers Charlestown, N.H. For The Year Ending December 31, 2012., Charlestown Town Representatives
Charlestown, NH Annual Reports
This is an annual report containing vital statistics for a town/city in the state of New Hampshire.
Milton, New Hampshire 2012 Annual Report., Milton Town Representatives
Milton, New Hampshire 2012 Annual Report., Milton Town Representatives
Milton, NH Annual Reports
This is an annual report containing vital statistics for a town/city in the state of New Hampshire.
Muscogee Constitutional Jurisprudence: Vhakv Em Pvtakv (The Carpet Under The Law), Sarah Deer, Cecilia Knapp
Muscogee Constitutional Jurisprudence: Vhakv Em Pvtakv (The Carpet Under The Law), Sarah Deer, Cecilia Knapp
Tulsa Law Review
No abstract provided.
Bo41-5-Web.Pdf, Bird Observer
Bo41-6-Web.Pdf, Bird Observer
Bo41-1-Web.Pdf, Bird Observer
Bo41-4-Web.Pdf, Bird Observer
Span 300: Advanced Reading And Writing In Spanish (Special Section For Heritage Speakers)—A Peer Review Of Teaching Project Benchmark Portfolio, Isabel Velázquez
Span 300: Advanced Reading And Writing In Spanish (Special Section For Heritage Speakers)—A Peer Review Of Teaching Project Benchmark Portfolio, Isabel Velázquez
UNL Faculty Course Portfolios
This is an course portfolio which inquires into an undergraduate class designed to develop the academic reading and writing skills of bilingual students who grew up in Spanish-speaking households and received all or most of their schooling in English.
Plant Community Composition And Structure Monitoring For Agate Fossil Beds National Monument, 2012 Annual Report, Isabel W. Ashton, Stephen K. Wilson, Daniel J. Swanson, Michael Prowatzke, Phil Graeve
Plant Community Composition And Structure Monitoring For Agate Fossil Beds National Monument, 2012 Annual Report, Isabel W. Ashton, Stephen K. Wilson, Daniel J. Swanson, Michael Prowatzke, Phil Graeve
United States National Park Service: Publications
Executive Summary
Agate Fossil Beds National Monument (AGFO) plays a vital role in protecting and managing some of the last remnants of native mixed-grass prairie in the region. The Northern Great Plains Inventory & Monitoring Network (NGPN) and Fire Ecology Program (FireEP) surveyed 12 long-term monitoring plots in Agate Fossil Beds National Monument in 2012 as part of an effort to better understand the condition of plant communities in the park. We measured plant diversity and cover, looked for the presence of exotic species that may be newly invading the park, and evaluated the amount of human and natural disturbance …
The Feasibility Of Producing Adequate Feedstock For Year-Round Cellulosic Ethanol Production In An Intensive Agricultural Fuelshed, Daniel R. Uden, Robert B. Mitchell, Craig R. Allen, Qingfeng Guan, Tim D. Mccoy
The Feasibility Of Producing Adequate Feedstock For Year-Round Cellulosic Ethanol Production In An Intensive Agricultural Fuelshed, Daniel R. Uden, Robert B. Mitchell, Craig R. Allen, Qingfeng Guan, Tim D. Mccoy
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
To date, cellulosic ethanol production has not been commercialized in the United States. However, government mandates aimed at increasing second-generation biofuel production could spur exploratory development in the cellulosic ethanol industry. We conducted an in-depth analysis of the fuelshed surrounding a starch-based ethanol plant near York, Nebraska that has the potential for cellulosic ethanol production. To assess the feasibility of supplying adequate biomass for year-round cellulosic ethanol production from residual maize (Zea mays) stover and bioenergy switchgrass (Panicum virgatum) within a 40-km road network service area of the existing ethanol plant, we identified ∼14,000 ha of marginally productive cropland within …
Survival And Behavior Of Chinese Mystery Snails (Bellamya Chinensis) In Response To Simulated Water Body Drawdowns And Extended Air Exposure, Kody M. Unstad, Daniel R. Uden, Craig R. Allen, Noelle M. Chaine, Danielle M. Haak, Robert A. Kill, Kevin L. Pope, Bruce J. Stephen, Alec Wong
Survival And Behavior Of Chinese Mystery Snails (Bellamya Chinensis) In Response To Simulated Water Body Drawdowns And Extended Air Exposure, Kody M. Unstad, Daniel R. Uden, Craig R. Allen, Noelle M. Chaine, Danielle M. Haak, Robert A. Kill, Kevin L. Pope, Bruce J. Stephen, Alec Wong
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Nonnative invasive mollusks degrade aquatic ecosystems and induce economic losses worldwide. Extended air exposure through water body drawdown is one management action used for control. In North America, the Chinese mystery snail (Bellamya chinensis) is an invasive aquatic snail with an expanding range, but eradication methods for this species are not well documented. We assessed the ability of B. chinensis to survive different durations of air exposure, and observed behavioral responses prior to, during, and following desiccation events. Individual B. chinensis specimens survived air exposure in a laboratory setting for > 9 weeks, and survivorship was greater among adults …
Enamel-Based Mark Performance For Marking Chinese Mystery Snail Bellamya Chinensis, Alec Wong, Craig R. Allen, Noelle M. Hart, Danielle M. Haak, Kevin L. Pope, Nicholas A. Smeenk, Bruce J. Stephen, Daniel R. Uden
Enamel-Based Mark Performance For Marking Chinese Mystery Snail Bellamya Chinensis, Alec Wong, Craig R. Allen, Noelle M. Hart, Danielle M. Haak, Kevin L. Pope, Nicholas A. Smeenk, Bruce J. Stephen, Daniel R. Uden
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
The exoskeleton of gastropods provides a convenient surface for carrying marks, and in the interest of improving future marking methods our laboratory assessed the performance of an enamel paint. The endurance of the paint was also compared to other marking methods assessed in the past. We marked the shells of 30 adult Chinese mystery snails Bellamya chinensis and held them in an aquarium for 181 days. We observed no complete degradation of any enamel-paint mark during the 181 days. The enamel-paint mark was superior to a nail-polish mark, which lasted a median of 100 days. Enamel-paint marks also have a …
Ecosystems, Adaptive Management, Craig R. Allen, Joseph J. Fontaine, Ahjond S. Garmestani
Ecosystems, Adaptive Management, Craig R. Allen, Joseph J. Fontaine, Ahjond S. Garmestani
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Adaptive management is an approach to natural resource management that emphasizes learning through management based upon the philosophy that knowledge is incomplete and much of what is thought to be known is actually wrong, but despite uncertainty, managers and policymakers must act. Although the concept of adaptive management has resonated with resource management scientists and practitioners following its formal introduction in 1978, it has and continues to remain little practiced and much misunderstood. Misunderstanding is largely based upon the belief that adaptive management is what management has always been, a trial and error attempt to improve management outcomes. But unlike …
Great Gray Owls (Strix Nebulosa) In Yosemite National Park: On The Importance Of Food, Forest Structure, And Human Disturbance, Charles Van Riper Iii, Joseph J. Fontaine, Jan W. Van Wagtendonk
Great Gray Owls (Strix Nebulosa) In Yosemite National Park: On The Importance Of Food, Forest Structure, And Human Disturbance, Charles Van Riper Iii, Joseph J. Fontaine, Jan W. Van Wagtendonk
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
We studied great gray owls (Strix nebulosa Forster) in Yosemite National Park, California, measuring variables that could potentially influence patterns of occurrence and conservation of this state endangered species. We found that owl presence was closely tied to habitat (red fir (Abies magnifica A. Murray) and the abundance of meadows), prey, and snags across the landscape. We also found that indicators of human recreational activities negatively influenced owl distribution and habitat use. Great gray owls appear to prefer mid-elevation red fir forest with meadows that are drier and more productive in terms of small mammal populations. That these …
Mortality Estimate Of Chinese Mystery Snail, Bellamya Chinensis (Reeve, 1863) In A Nebraska Reservoir, Danielle M. Haak, Noelle M. Chaine, Bruce J. Stephen, Alec Wong, Craig R. Allen
Mortality Estimate Of Chinese Mystery Snail, Bellamya Chinensis (Reeve, 1863) In A Nebraska Reservoir, Danielle M. Haak, Noelle M. Chaine, Bruce J. Stephen, Alec Wong, Craig R. Allen
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
The Chinese mystery snail (Bellamya chinensis) is an aquatic invasive species found throughout the USA. Little is known about this species’ life history or ecology, and only one population estimate has been published, for Wild Plum Lake in southeast Nebraska. A recent die-off event occurred at this same reservoir and we present a mortality estimate for this B. chinensis population using a quadrat approach. Assuming uniform distribution throughout the newly-exposed lake bed (20,900 m2), we estimate 42,845 individuals died during this event, amounting to approximately 17% of the previously-estimated population size of 253,570. Assuming uniform distribution throughout all …
Scenarios Of Bioenergy Development Impacts On Regional Groundwater Withdrawals, Daniel R. Uden, Craig R. Allen, Rob B. Mitchell, Qingfeng Guan, Tim D. Mccoy
Scenarios Of Bioenergy Development Impacts On Regional Groundwater Withdrawals, Daniel R. Uden, Craig R. Allen, Rob B. Mitchell, Qingfeng Guan, Tim D. Mccoy
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Irrigation increases agricultural productivity, but it also stresses water resources (Huffaker and Hamilton 2007). Drought and the potential for drier conditions resulting from climate change could strain water supplies in landscapes where human populations rely on finite groundwater resources for drinking, agriculture, energy, and industry (IPCC 2007). For instance, in the North American Great Plains, rowcrops are utilized for livestock feed, food, and bioenergy production (Cassman and Liska 2007), and a large portion is irrigated with groundwater from the High Plains aquifer system (McGuire 2011). Under projected future climatic conditions, greater crop water use requirements and diminished groundwater recharge rates …
Rainwater Basin Wetland Inundation Decision Support System Guide, Christopher F. Jorgensen, Andy A. Bishop, Daniel R. Uden, Roger Grosse
Rainwater Basin Wetland Inundation Decision Support System Guide, Christopher F. Jorgensen, Andy A. Bishop, Daniel R. Uden, Roger Grosse
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
The Rainwater Basin region of south-central Nebraska, U.S.A., is a critical stopover location for migratory waterfowl, waterbirds and shorebirds traveling along the Central Flyway. The ephemeral playa wetlands in the region serve as spring staging areas, providing critical habitat for migrating birds to rest, feed and establish pairs before resuming their northward migration to the breeding grounds. Collectively, the playa wetlands found in the region form the Rainwater Basin Wetland Complex, encompassing a 6,150 square-mile area of rolling loess plains that extend over 21 counties. Analyses of the State’s historic soil surveys (1910-1917), National Wetland Inventory (NWI; 1980-1982; U.S. Geological …
Social-Ecological Predictors Of Global Invasions And Extinctions, Aaron Lotz, Craig R. Allen
Social-Ecological Predictors Of Global Invasions And Extinctions, Aaron Lotz, Craig R. Allen
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Most assessments of resilience have been focused on local conditions. Studies focused on the relationship between humanity and environmental degradation are rare, and are rarely comprehensive. We investigated multiple social-ecological factors for 100 countries around the globe in relation to the percentage of invasions and extinctions within each country. These 100 countries contain approximately 87% of the world’s population, produce 43% of the world’s per capita gross domestic product (GDP), and take up 74% of the earth’s total land area. We used an information theoretic approach to determine which models were most supported by our data, utilizing an a priori …
Effects Of Simulated Angler Capture And Live-Release Tournaments On Walleye Survival, John H. Loomis, Harold L. Schramm Jr., Bruce Vondracek, Patrick D. Gerard, Christopher J. Chizinski
Effects Of Simulated Angler Capture And Live-Release Tournaments On Walleye Survival, John H. Loomis, Harold L. Schramm Jr., Bruce Vondracek, Patrick D. Gerard, Christopher J. Chizinski
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
We examined the effects of acclimation water temperature, live-well (LW) water temperature, and LW dissolved oxygen (DO) concentration on survival of adult Walleyes Sander vitreus subjected to simulated tournament conditions (angling, LW confinement, and weigh-in procedures) under controlled laboratory conditions. We tested three acclimation temperatures (12, 18, and 24◦C), and three LWtemperature differentials (Delta T=−4, 0, and +4◦C) were tested at each acclimation temperature. Survival was monitored after 8 h of LW confinement and during a 5-d retention period in 1,700-L tanks. None of the Walleyes that were acclimated to 24◦C and subjected to simulated tournament procedures survived the 5-d …
Efficacy Of Voluntary Mitigation In Reducing Harbor Seal Disturbance, Anne Hoover-Miller, Amanda Bishop, Jill Prewitt, Suzanne Conlon, Caroline Jezierski, Peter Armato
Efficacy Of Voluntary Mitigation In Reducing Harbor Seal Disturbance, Anne Hoover-Miller, Amanda Bishop, Jill Prewitt, Suzanne Conlon, Caroline Jezierski, Peter Armato
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Marine and coastal tourism has rapidly expanded worldwide in the past 2 decades, often occurring in once secluded habitats. In Alaska, tourism near tidewater glaciers has attracted millions of visitors and increased the presence of ships, tour vessels, and coastal development. Although sustainable tourism, resulting from balanced effects on wildlife and client satisfaction, is a goal of most tourism operators, it is not always achieved. Voluntary compliance with viewing guidelines and codes of conduct have been encouraged, but few assessments have the longitudinal scope to evaluate long-term changes in impacts on wildlife and the ability of vessel operators and kayak …