All of our analyses indicate that this new resiliency, representation, and you may redundancy of one’s rusty patched bumble-bee have got all refuted given that late 90s and tend to be projected to carry on in order to refuse over the next several ages. Typically, brand new types try plentiful and you will extensive, having numerous communities around the an expansive assortment, and you will is the newest fourth-rated Bombus types inside our cousin variety data. This post was also stated from the other people.
I thought any people having one or more list (someone rusty patched bumble bee viewed) while the 1999 was most recent, and therefore, all round health and position of those 103 newest communities is actually unsure

Historically, this new rusty patched bumble bee might have been recorded off 926 populations; as 1999, the brand new species has been noticed during the 103 communities, and that represents a keen 88 percent refuse from the amount of communities noted just before 2000). Indeed, of several populations haven’t been reconfirmed since very early 2000s and ple, zero rusty patched bumble bees had been observed in the 41 (forty %) of one’s current web sites just like the 2010 and also at 75 (73 %) of your 103 sites while the 2015. Also, a few of the latest communities are documented from the not absolutely all individuals; 95 percent of one’s communities are documented by the 5 otherwise fewer individuals; the maximum matter found at one site try 29. The number of individuals constituting a healthy and balanced nest is typically several hundred or so, and you will a healthier populace usually contains 10s in order to numerous territories (Macfarlane ainsi que al. 1994, pp. 34). keep reading