Projects

A guide to the general habitat of where Bald Eagle nests are commonly found, the physical characteristics of the nests and a timing of nest activity.

The Missouri Department of Conservation (MDC) has developed this Bat Habitat Conservation Plan to address the potential for covered forest management activities to cause incidental take of five listed or otherwise at-risk bat species over a period of 50 years. The following bat species are covered in this HCP:

• Indiana bat (Myotis sodalis). Federally listed as endangered.
• Gray bat (Myotis grisescens). Federally listed as endangered.
• Northern long-eared bat (Myotis septentrionalis). Federally listed as threatened. 
• Little brown bat (Myotis lucifugus). Under status review by the U.S. Fish and Wildlife Service (USFWS) with the potential to become federally listed. 
• Tricolored bat (Perimyotis subflavus). Petitioned for listing with the potential to become federally listed. 

Appendices to the MDC Bat Habitat Conservation Plan

Studies of blue catfish and flathead catfish in the Missouri and Mississippi rivers (big rivers) were prompted by concerns from some anglers about overharvest and inadequate harvest regulations. During 2015 to 2019 blue catfish and flathead catfish fisheries on big rivers were evaluated to estimate exploitation and population demographics. Our studies confirmed that current management approaches support healthy and sustainable populations, and regulation changes do not appear to be necessary to prevent overfishing, which was not evident. However, various harvest regulations were modeled to determine their impact on yield and the number of large fish in the population. Opportunities to manage these catfish populations to better meet the desires of some fishers who prefer to catch larger fish (i.e., size favored over yield) were identified.

Flathead catfish (Pylodictis olivaris) are native to the Missouri and Mississippi rivers, and support extremely important fisheries on these big rivers. The Missouri River supports a recreational fishery, and the Mississippi River supports both recreational and commercial fisheries. Missouri’s big river, flathead catfish populations have not been intensively managed in the past, and information needed to inform management and regulatory decisions is limiting. Flathead catfish were sampled in the Mississippi and Missouri rivers using low-frequency electrofishing, and these data, along with tag return information, were used to estimate exploitation and other population demographics (e.g., size structure, age and growth, and total annual mortality). Management and regulatory recommendations focus on increasing yield available to fishers and ensuring sustainability of big river, flathead catfish populations.

An overview of the proper calibration and use of binoculars and spotting scopes for doing bird monitoring.

Natural environments and green spaces provide ecosystem services that enhance human health and well-being. This review describes mechanisms and evidence of effects of biodiversity in nature and green spaces on human health.

Advances in research concerning the brain-related influences of the microbiome have been paradigm shifting, although at an early stage, clinical research involving beneficial microbes lends credence to the notion that the microbiome may be an important target in supporting mental health (defined here along the continuum between quality of life and the criteria for specific disorders).

Blue catfish (Ictalurus furcatus) are native to the Missouri and Mississippi rivers, and support extremely important fisheries on these big rivers. The Missouri River supports a recreational fishery, and the Mississippi River supports both recreational and commercial fisheries. Missouri’s big river, blue catfish populations have not been intensively researched or managed in the past, and information needed to inform management and regulatory decisions is lacking. Blue catfish were sampled in the Mississippi and Missouri rivers using low-frequency electrofishing, and these data, along with tag return information, were used to estimate exploitation and other population demographics (e.g., size structure, age and growth, and total annual mortality). Management and regulatory recommendations focus on increasing yield available to fishers and ensuring sustainability of big river, blue catfish populations. During 2015 and 2016, a total of 6,639 blue catfish ranging in size from 3-53 inches (76-1,348 mm) total length (TL) were collected from eight study sites. Pectoral spines were aged from 1,874 blue catf

In 2008, MDC developed a printed survey asking horse riders how often they rode on public land, where they rode, how much they spent, and additional questions about their attitudes regarding equestrian trails. The survey was printed in two versions. One was sent to a randomly selected sample of riders, the other was a convenience sample distributed to saddle clubs, trail rides, and other interested parties. The Random Sample was to provide unbiased statewide information, while the Convenience Sample was to meet the desire of the riding public to provide input.

A convenience sample is much more likely to be completed by avid users, who have more opportunities to see it, and by users with stronger opinions about the issue addressed, who are more motivated. A random sample should statistically represent the whole population from which the sample is drawn, in this case all Missouri landowners with horses. With a convenience sample, it may never be known how many people received it, only how many were sent in. By contrast, with a well-constructed random sample, which includes a database of names and addresses and numbered surveys, the response rate is known.