Conservation Archives - Page 54 of 78

Nov 20 2014 | karol orzechowski

Illegal Killing for Ivory Drives Global Decline in African Elephants

The authors of this study applied both empirical and modeling approaches to track illegal elephant killing at a regional and continental level. 75% of sites showed a population decline since 2009. Research into causes of a diminished (but still unsustainable) rate of killing since 2011 may provide insights into effective strategies to reduce the illegal ivory trade, which has created havoc with elephant family structures, skewing sex ratios, and increasing the orphaning of calves. READ MORE

Nov 17 2014 | karol orzechowski

Effects of Invasive Plants on Arthropods

This literature review examines the effects of invasive plants on insects, arachnids, and crustaceans. 90% of arthropods are plant-eaters who depend on specific species. They decreased three times as often as they increased. Predatory arthropod populations dropped twice as often and ant populations dropped seven times more often than they increased. Arthropods have key ecosystem roles in pollination, predation, and decomposition, as well as in the diets of other animals. Impacts of invasive plants on their habitat should be considered in conservation decisions. READ MORE

Nov 13 2014 | karol orzechowski

Severity of Killer Whale Behavioral Responses to Ship Noise: A Dose–Response Study

This literature review analyzed data from previous orca studies to determine the impacts of noise from large shipping vessels upon respiration, speed, directness, deviation, and surface-active behavior. The whales showed moderate reactions to moderate noise. If reactions increase with noise levels, ability to hunt may be impaired in these animals who are already at risk from other anthropogenic causes. Further research is needed in this area. READ MORE

Nov 12 2014 | karol orzechowski

Anthropogenic And Seasonal Problems Of Giant Otter Sightings

This study examined how Giant Otters in the Amazon River basin reacted to human activities, and seasonally changing water levels. READ MORE

Nov 6 2014 | Faunalytics

Analysis Of Attitudes Toward Damage-Causing Wildlife

This literature review analyzed 54 studies that measured attitudes of more than 23,000 humans about conflicts they had experienced with wildlife. READ MORE

Oct 27 2014 | Faunalytics

Who Pays for American Wildlife? Not Hunters

Some argue that hunters deserve to make wildlife policy because they fund most conservation efforts. That’s not true, this study finds: instead, most wildlife funding comes from the average taxpayer. READ MORE

Oct 17 2014 | Faunalytics

Evaluation Of The Global Decline Of Carnivores And Ungulates

The following article does a review of 40 years of IUCN-related literature on endangered species. For each species that improved in endangered status, 8 deteriorated in population, with large-bodied species populations decreasing at significantly higher rates than small bodied species populations. READ MORE

Oct 13 2014 | Faunalytics

Tourist Monitoring Alter Fish Behavior In Underwater Trails

This study explored the case study of Brazilian rivers where it is possible for fish-observing tourists to avoid causing negative behavioral effects on the fish involved. READ MORE

Oct 6 2014 | Faunalytics

On Uncertain Sightings And Inference About Extinction

A study discussing two different types of statistical models, the ways they differ, and how they can be used in different scenarios. READ MORE

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