Sentences with phrase «locust species»

It may be thatmultiple cues are involved, and perhaps different locust species usedifferent cues.

Not exact matches

This mismatch between these numbers and 1880 estimates of at least three billion suggests that the passenger pigeon may have been what is known to ecologists as an «outbreak» species, like locusts, that boom and bust with changes in conditions, rather than a species that experiences a singular population explosion, as Homo sapiens has in the last 200 years.

While working on a rare little known group of Oriental wasps that most likely parasitise the eggs of grasshoppers, locusts or crickets, not only did a team of four entomologists discover four previously unknown species, but they also found that another four species within the same genus (Habroteleia) were in fact all one and the same — a fifth species discovered more than a century ago.

Of the approximately 8,000 species of grasshoppers, only about 10 of them are likely to morph into swarming locusts, Burrows says.

Hyde — like changes in at least one species of grasshopper — the desert locust (Schistocerca gregaria).

Bomar suggests these other species, especially thered - legged grasshopper and the migratory grasshopper, are stepping intothe niche the Rocky Mountain locust vacated.

In fact, the integrity of the RockyMountain locust, Melanoplus spretus, as a distinct species has only recently been demonstrated through genetic analysis.

Daniel Otte, the curator of entomologyat the Academy of Natural Sciences in Philadelphia, suggests the RockyMountain locust is not extinct at all but has simply refrained fromswarming in recent times, perhaps because of encroaching agriculture.Otte points out that almost no one can distinguish closely relatedgrasshopper species by sight.

Although the Rocky Mountain locust, the species that wreaked havoc here in the 19th century, does seem tohave disappeared, its ecological niche may be only temporarily vacant.

Swarms of locusts — giant flying species ofgrasshoppers — are a traveling variation on this phenomenon and dominatea wide swath of this planet almost every year.

Locusts tend to have low protein requirements, but this species needed the smallest amount «of any locusts studied to date,» Cease says, indicating a preference for low - proteinLocusts tend to have low protein requirements, but this species needed the smallest amount «of any locusts studied to date,» Cease says, indicating a preference for low - proteinlocusts studied to date,» Cease says, indicating a preference for low - protein foods.