The stately Chir pines at Sitlakhet

Pinus longifolia also called Pinus roxburghii

I could not get enough of this lower Himalayan pine.  And since it is named after the Scottish botanist William Roxburgh, who spent many a year in Madras, I shall ramble a bit about it.  He called it Pinus longifolia and it finds a place in his Flora Indica.  The Royal Botanical Gardens at Kew have a digitised version of the three volume compendium on India's flora, and these two pictures are from there.  It seems to be that he was reporting on the tree from his observation in Calcutta, rather than the Himalayas.



The bark is so characteristic, deep red and fissured, and whenever I had the opportunity I would kind of touch and feel it with wonder.

The tree is used by locals to extract resin and oil via these cuts which form a herringbone pattern

The needle-like leaves grow and fall in threes.  the cover of dry pine leaves on the forest floor discourage growth of other trees except the rhododendron and the banj oak, which is what I found around these trees.

It is the dominant species of the area, and is quick to recover and re-grow after the common and frequent summer forest fires.  When we drove up the hills in end May, we saw many forest fires, with the inner cores of these pine trees glowing and alight.  However, when we came down three weeks later in the middle of June, the frequent heavy rain showers had put all the fires out.

The undergrowth is rich with grasses and wildflowers which I have not yet identified.

Maybe some variety of Imperata

A glorious yellow that would catch your eye

These beautiful wildflowers were seen all over.

My eyes trace the trunk.
Blue skies above.

Roly poly puchi

Chetan dropped this into my hand while at the Yercaud camp this summer. No, its not a nut or fruit, but a roly poly puchi!  It was so tightly rolled up like one of those well-made cases that cannot be opened.

Leave it alone, and after a good 45 seconds, it slowly unfurls and becomes this.

Seems to be, this is a pill millipede, and not a pill bug.  The latter is actually a crustacean, and from what I read, my puchi seems to be a puchi only and therefore the former.  I may be wrong, may be right....

Thirteen body segments and they feed on dead matter from what I read.  So, not a pest, but one of those little ancient critters that quietly go about recycling decomposing plant matter.

How many push ups can you do?

I have been seeing a lot of rock agamas of late.  At Yercaud.

I have seen the males do push ups, as they occupy the highest rock, chase other males, and I also came across females digging holes really deep for the purpose of egg laying.

The videos below are of her digging exploits.

After she was done, she covered the hole and it was fascinating that the sight of the digging could not be detected, so well was it camouflaged.

Our human male gym show-off can be assured that his behaviour is no different from that of the rock agama, and is a deep evolutionary behaviour.  I shall treat it with less scorn and impatience from now on!

Why do rock lizards display varied behaviour?

Study provides rare evidence of why animal signals are relevant in nature

Aathira Perinchery

Lizards may perform comical push-ups, head bobs or suddenly transform from a stunning crimson body colour to a paler shade in just a few seconds, but this is no game. A recent study on male rock agamas published in Frontiers in Ecology and Evolution shows that such ‘signals’ advertise their quality to prospective mates and competitors.

An animal’s quality or ‘fitness’ — measured by how successfully it obtains mates and reproduces — is an important concept in evolution, showing how well an animal’s ‘strategy’ does in nature. So what do these males do to win females over?

Multiple signals

To find out, Shreekant Deodhar and Kavita Isvaran of Bengaluru’s Indian Institute of Science studied all behavioural and physical (changes in body colour) signals displayed by 41 wild male rock agamas throughout the lizards’ lifespan (for around 2.5 years) in Andhra Pradesh’s Rishi Valley. They found that males used multiple signals, including head bobs, push-ups and neck flap extensions. Males often used these traits all at once; the frequency of most of these traits increased with the number of females in the vicinity, suggesting that these signals — directed towards females — are maintained by female choice.

“These behaviours may help females judge a male’s quality quickly and more accurately,” says lead author Deodhar. “It is often [energetically] costly to display all these signals together, and if a male does this, it can indicate his quality.”

But there are costs to such flamboyance: it attracts predators and fellow competitors. The scientists found that most of these displays reduced in the presence of predators, proving that predation risk too played a role in the use of signals. Some colour-changing traits could be aimed at multiple receivers including competitors, but detailed experimental studies would be necessary to understand this better, says Isvaran.

Rare evidence

The team also quantified male ‘fitness’, which is usually extremely difficult to measure in the wild. Observing males throughout their lifetimes, Deodhar noted how many females each male had access to per day and ‘breeding tenures’, the time for which males occupied territories during the breeding season (the longer this time, the more the access to females). Males that signalled more had longer breeding tenures; thus these signals are relevant biologically because they also affected lifetime reproductive success.

“The biological relevance of this finding is also exciting because it is often difficult to follow individuals across their lifetimes,” says Isvaran.

Agamas are well suited to answer this question because they have short lifespans, perform very unusual displays and live in open habitats which makes it easy to study their behaviour, she adds.

Fruit country. Uttarakhand

Khumani/Peach

Adu/Apricot.....i brought a whole bunch back

Apples

Kaphal/bayberry

Juicy plums....so tasty

Pears too.

Peaches, (aadu), apricots, (khumani) and apples by the roadside. And of course kaphal or bay berries. Yours for the picking. I have eaten quite a few.

The pleasure of watching the fruits ripen and choosing which one you want to eat. Of course, the monkeys and birds are also doing the same.